The document provides information about INT spark plugs, including:
1. It discusses spark plug design considerations like physical dimensions, combustion chamber shape, cooling abilities, and fuel/ignition systems.
2. Spark plugs must have the correct heat range to dissipate heat from combustion while preventing overheating and failure.
3. INT works closely with engine manufacturers to produce ideal spark plugs for each application, only making new types where necessary.
4. The document provides tips for properly installing spark plugs, including disconnecting the battery, identifying cable locations, applying anti-seize compound if needed, tightening to the correct torque, and reconnecting cables.
1. INT SPARK PLUGS BROCHURE
2015.v1
The powerful spark
plug fits perfectly
in any engine
application!
2. INT SPARK PLUGS BROCHURE
Information A1 Spark plug design
A2 Heat range and heat dissipation
A3 - A4 Spark plug installation tips
A5 Spark plugs faces
A6 Tightening torques for spark plugs
A7 INT spark plugs technology
A8 INT Iridium spark plug
Motorcycle B1 - B2 Motorcycle spark plugs cross-reference
B3 Motorcycle spark plug applications
Automotive C1 - C5 AC Delco to INT
C6 - C10 Autolite to INT
C11 - C15 Bosch to INT
C16 - C20 Champion to INT
C21 - C24 Denso to INT
C25 - C29 Motorcraft to INT
C30 - C31 Torch to INT
C32 - C38 Spark plug application table
3. SPARK PLUG DESIGN
Every year a range of spark plugs grows to accommodate the ever increasing demands of modern engines.
Spark plug design must take into consideration many features of an engine including physical dimensions,
combustion chamber shape, cooling abilities, fuel and ignition systems. Spark plugs play a vital role in
producing the maximum power from an engine whilst keeping fuel consumption and emissions to a
minimum. Choosing the correct spark plug type will help a vehicle manufacturer meet legislated emission
targets and assists the motorist in getting the best from their engine.
Increases in the size and the
requirement to improve the cooling
of the inlet and exhaust valves have
meant that the space available for
the spark plug is severely restricted
on some cylinder heads. A change
in spark plug design, possibly the
adoption of a taper seat and
extended reach (threaded portion)
or even the use of a smaller
diameter is often the answer. Some
engines require the use of two spark
plugs per cylinder and again due to
space restrictions these might be of
different sizes.
Changes in fuelling systems and the
fuel itself have meant some special
features being adopted at the ‘firing
end’ of the spark plug. Extra
projected types push the spark
position into the heart of the
combustion chamber to promote
better combustion of the fuel/air
mixture, which is weaker than ever
in an effort to improve economy.
Modern engine manufacturers often
require increased spark gaps to
allow a longer spark duration, which again aids more efficient combustion.
To combat the ‘cold fouling’ effect that can occur in some engines using unleaded fuels specially
arranged ground electrodes are sometimes used. These can force the spark to discharge across the
insulator and thus burn away any built up carbon that could cause poor starting or misfires. It is not
uncommon to find two, three or four ground electrode arrangements in new vehicles. The use of precious
metals on the tips of the spark plug electrodes is not uncommon especially on higher performance engines.
Whilst these spark plugs do have increased service life they are often specified because of their superior
ignition qualities.
Our engineering departments work very closely with the engine and vehicle manufacturers to produce the
ideal spark plug type for each application. Any change in production is expensive for a manufacturer and
therefore new spark plug types are only produced where necessary. INT employ the very latest production
technology to ensure that every aspect is catered for – performance, economy and value.
A1
4. HEAT RANGE AND HEAT DISSIPATION
HEAT RANGE AND HEAT DISSIPATION
Spark plugs do not produce heat in the combustion chamber. One of the functions of the spark
plug is to dissipate some of the heat produced during combustion. This is mostly transferred into
the cylinder head. The 'Heat Range' indicates the measure of the spark plug's ability to do
this. A 'hot' spark plug is designed to maintain a sufficiently high temperature at the insulator
nose to burn off carbon and oil deposits. A 'cold' spark plug is designed to allow a faster transfer
of heat to the cylinder head thus preventing overheating and premature failure.
The heat range selection is obviously a complex task with many factors to take into account.
INT engineers therefore make specific recommendations for each engine and the use to which it
is put.
FIRING END APPEARANCE
A2
5. SPARK PLUG INSTALLATION TIPS
Users can view the Installation Instructions for Spark Pugs. However, these instructions are
general overviews that provide basic insights and cannot be substituted for expert advice that a
trained automobile technician can provide.
Note: If the "Check Engine" light is on, then the problem must be fixed before the Spark
Plugs are fitted.
Stage 1
Before installation make sure you have the correct type of spark plugs for the engine being
serviced.
Stage 2
Disconnect both battery wires. This will reset the Engine Control Unit (ECU) and adjust the
spark ignition timing to match that of the Spark Plug. If you have an older vehicle that does not
have an ECU, then the ignition timing needs to be manually adjusted by a trained technician.
Note: Do not work on hot or warm engines as this can cause damage.
Stage 3
Identify the spark plug cables to insure the cables are reconnected correctly as covered in Stage
11, because, unless you number them, they may become mixed up.
Stage 4
Carefully remove the spark plug cables (Fig.1). Check the cables for damage and replace if
necessary.
Stage 5
Remove the spark plugs using the correct tools.
Stage 6
If the plugs require an external gasket (not applicable for taper seat spark plugs), check that there
are no gasket’s remaining on the cylinder head from the removed plugs.
Stage 7
Put a little bit of anti-seize compound on the front two threads of the new plugs before installation
if necessary.
Note: Anti-seize is needed on aluminum heads to prevent electrolytic action between the steel
spark plug body and aluminum head. Do not use too much anti-seize.
INT does not recommend application of lubricant to spark plug threads as the resultant reduction
of frictional forces at the thread faces will render the torque charts inaccurate and over tightening
could occur.
A3
6. SPARK PLUG INSTALLATION TIPS
Stage 8
Install each plug until finger tight.
Note: Spark plugs that are not tight will run hot and can cause serious engine damage. If you
cannot seat the spark plug all the way with your fingers, there is probably carbon in the threaded
hole in the cylinder head. Chase the threads with a thread chaser before installing the spark plug.
When removing plugs, examine the seat area closely for evidence that the plug was seated all the
way in its previous installation. On plugs with gaskets, the gasket should be compressed. With
tapered spark plugs, the seat area of the plug should show a “witness mark” (proving that it was
seated). Spark plugs that fail because they were loose can have a blown out center electrode or
insulator, or the outer shell can be blue.
Stage 9
Tighten the spark plugs to the recommended torque for the plugs and engine, by using a torque-
wrench and sockets that correctly fit the hexagon of the spark plug metal shell (Fig.2). Please
refer to the Tightening Torques section.
Note: Do not remove or install plugs by gripping the insulator with any tool as this will
damage the plug.
Stage 10
You can apply dielectric grease to each electrode tip before reconnecting the spark plug cables.
Note: This operation will provide a good seal between the plug cable and the electrode tip.
Stage 11
Reconnect the spark plug cables to the correct plugs as marked during Stage 3.
Stage 12
Reconnect the battery cables.
IMPORTANT: Please check the thread length of the spark plug is matched with your original
spark plugs before installation. Ensure the spark plug gap selected is according to vehicle
manufacturers specification. Use the the correct tools and tightening torque to installate the
spark plugs.
Fig1. Twist and pull on the spark plug boot, never on the wire. Fig2. Use the tools correctly
A4
7. 9 + 10 Heavy Lead deposits
In places the insulator nose is thickly glazed
brownish-yellow, this may also tend towards
green.
Cause : fuel additives which contain lead.The
glaze appears in the case of heavy engine
loading after lengthy part- load operation.
Effect : Under heavy loading, deposits become
electrically conductive & cause misfiring.
Remedy : new spark plugs, cleaning is
pointless.
11 + 12 Heavy Lead deposits
Heavy ash deposits from oil & fuel additives on
the insulator nose, in the scavenging area & on
the ground electrode.The structure of the ash is
loose to cinder-like.
Cause : Alloying constituents, in particular from
oil,can deposit this ash in the combustion
chamber & on the spark-plug face.
Effect : Can lead to auto ignition with loss of
power & engine damage. Remedy : Repair
engine. New spark plugs. Possibly use other oil.
13 Partially melted centre electrode
Centre electrode partially melted, blistered,
spongy insulator tip.
Cause : Overheating due to auto- ignition, eg:
due to overadvanced ignition timing, combustion
deposits in combustion chamber, defective
valves, defective ignition distributor, inadequate
fuel quality, heat range possibly too low.
Effect : Misfiring, loss of power. (engine
damage)
Remedy : Check engine, ignition & mixture
formation. New spark plugs with correct heat
range.
14 Centre electrode melted away
Centre electrode melted away, ground electrode
also severely attacked.
Cause : Overheating due to auto- ignition, eg:
due to over-advanced ignition timing,
combustion deposits in combustion chamber,
defective valves, defective ignition distributor,
inadequate fuel quality.
Effect : Misfiring, loss of power, possibly
engine damage. Overheated centre electrode
may result in insulator nose cracking.
Remedy : Check engine,ignition & mixture
formation. New spark plugs.
1 + 2 Normal
Insulator nose greyish-yellow to russet brown.
Engine is in order. Heat range of plug correct.
Mixture setting & ignition timing are correct,
no misfiring, cold starting device functions
correctly.
No deposits from fuel additives containing
lead or from alloying constituents in the
engine oil. No overheating.
3 + 4 Soot - carbon fouled
Insulator nose, electrodes & spark-plug shell
covered with velvet-like, dull black soot
deposits.
Cause : Incorrect mixture setting (carburetor,
fuel injection) mixture too rich, air filter very
dirty, automatic choke not in order or manual
choke pulled too long, mainly short distance
driving, spark plug too cold, heat range code
number too low
Effect : Misfiring, poor cold-starting
performance.
Remedy : Set mixture & cold-starting device
correctly, check air filter.
5 + 6 Oil-fouled
Insulator nose electrodes & spark-plug shell
covered with shiny soot or carbon residue.
Cause : Too much oil in combustion
chamber. Oil level too high, badly worn piston
rings, cylinders & valve guides. In two stroke
gasoline engines, too much oil in mixture.
Effect : Misfiring, poor starting performance.
Remedy : Overhaul engine, correct fuel-oil
mixture, new spark plugs.
7 + 8 Lead deposits
In places the insulator nose is glazed brownish
yellow; this may also tend towards green.
Cause : Fuel additives which contain lead.The
glaze appears in the case of heavy engine
loading after lengthy part- load operation.
Effect : Under heavy loading deposits become
electrically conductive & cause misfiring.
Remedy : New spark plugs, cleaning is
pointless.
15 Partially melted electrodes
Cauliflower-like appearance of the electrodes.
Possibly deposition of foreign matter.
Cause : overheating due to auto- ignition, eg:
due to over-advanced ignition timing,
combustion deposits in combustion chamber,
defective valves, defective ignition distributor,
inadequate fuel quality.
Effect : Loss of power prior to complete
failure. (engine damage).
Remedy : Check engine, ignition & mixture
formation. New spark plugs.
16 Heavy wear on centre electrode Cause :
Recommended interval between sparkplug
changes not complied with.
Effect : Misfiring, particularly when
accelerating. (ignition voltage no longer
sufficient for large electrode gap)
Poor starting performance
Remedy : New spark plugs.
17 Heavy wear on ground electrode Cause :
Aggressive fuel & oil
additives. Unfavorable influence of gas
turbulence in the combustion chamber, possibly
caused by deposits. Knocking. No overheating.
Effect : Misfiring particularly when
accelerating. (ignition voltage no longer
sufficient for large electrode gap.) Poor starting
performance.
Remedy: new spark plugs.
18 Cracking of insulator nose
Cause: Mechanical damage due to impact,
dropping or pressure on the centre electrode
resulting from incorrect handling. In marginal
cases - especially after excessively long use -
the insulator nose may crack due to deposits
between the centre electrode and insulator nose,
and due to corrosion of the centre electrode.
Effect: Misfiring, spark over at points not
reliably supplied with fresh mixture.
Remedy: New spark plugs.
SPARK PLUGS FACES --- To determine if the spark plugs are working properly.
A5
8. Tightening torques for spark plugs
Torques
A torque wrench is required for the professional installation of a spark plug. Even for
professionals the estimation of the tightening torque is nearly impossible.
That is because a torque can be calculated from two sizes which are multiplied by one another:
the force which is applied to the respective centre of rotation and the length of the handle.
Most spark plug failures can be traced back to an incorrect tightening torque. If it is set too low,
there is a risk of compression losses and overheating. A break of the insulator or middle electrode
as a result of vibrations is also feasible.
If the tightening torque is set too high, the spark plug can snap off. The casing can also expand or
warp. Heat dissipation zones are disrupted, overheating and melting of the electrodes or even
engine damage can occur.
Spark plug with flat seat (with gasket)
Spark plug with
conical seat
Cylinder head
material
Thread diameter Thread diameter
18mm 14mm 12mm 10mm 18mm 14mm
Cast iron head 35-45 Nm 25-35 Nm 15-25 Nm 10-15 Nm 20-30 Nm 15-25 Nm
Aluminium head 35-40 Nm 25-30 Nm 15-20 Nm 10-12 Nm 20-30 Nm 10-20 Nm
*The torques depend on the cylinder head material and the thread diameter.
Correct installation of spark plugs without torque wrench:
Screw in spark plug by hand until it is seated in the cylinder head. New spark plugs with flat seat are then
given a further approx. 90°turn with a spark plug wrench. The figure for spark plugs with a conical seat
and used spark plugs with a flat seat is approx. 15°.
A6
9. Now look at what INT’s
spark plugs technology.
A7
10. INT®
Iridium Spark Plug
1⃣ Specifications Include Terminal
A terminal nut is attached that fits with most of the world's spark plug
cables. Please remove the nut for installations that do not require one.
(Some terminal nuts types are solid parts and cannot be removed.)
2⃣ Built-in, Highly Reliable Resistor
The INT resistance plugs include a highly reliable resistor specification to
reduce electromagnetic noise that may affect electronic devices.
3⃣ Highly Corrosion Resistant, Burnished Nickel
Plating
The plug housing is plated with nickel. It is highly resistant to corrosion
and rust even while touring in continually rainy weather and during
motocross events.
4⃣ Projected Center Electrode
In order to improve ignitability, some center electrodes are designed
protrude more than with conventional type plugs This improves both
acceleration response time and performance.
5⃣ Taper-cut Ground Electrode
The tip of the ground electrode is cut to a fine taper to reduce the adverse
effects of quenching, which greatly improves fuel ignitability. Also,
because of the streamlined, taper-cut shape, the fuel-air mixture spreads
more evenly in the gap, resulting in steady, reliable igniting of combustion.
6⃣ U-Groove Ground Electrode
Some models are characterized with a U-shaped groove on the electrode
insures that the inside surface area is large enough to generate the flame
kernel. This shape enables lower voltage needed to cause the spark and
results in excellent ignitability without increasing the size of the spark gap.
7⃣ Insulator Projection
The projection of the insulator is optimally designed based on each
plug's thermal value. This corresponds to requirements unique to thermal
value, such as self-cleaning ability at lower thermal values, and heat
resistance at higher thermal values.
8⃣ 0.5 mm Diameter Iridium Center Electrode
Using a new iridium alloy with a very high melting point, the tip of the
electrode can be made very fine. This enables the reduction of voltage
necessary to cause the spark, and greatly improves ignitability.
9⃣ 360°Laser Welding
The process used to mount the iridium tip is a highly reliable "All-around
Laser Welding" process that is able to withstand all kinds of driving
conditions.
A8
14. Spark plug comparison table — AC Delco to INT
Manufacture Manufacture Part INT Code Manufacture Manufacture Part INT Code
AC Delco 44 S-B6 AC Delco FR3LSK FR4
AC Delco 45 B4 AC Delco FR3LSK E-BKR4-11
AC Delco 46 B4 AC Delco FR4LS FR4
AC Delco 12556183 PTR5C-13 AC Delco FR4LS E-BKR4-11
AC Delco 40TS R5674-7 AC Delco FR4LSJ FR4
AC Delco 41-101 A-ITR4-15 AC Delco FR4LSJ E-BKR4-11
AC Delco 41-2XLS ES-BPR7 AC Delco FR5LS FR4
AC Delco 41-4XLS ES-BP6 AC Delco FR5LS E-BKR4-11
AC Delco 41-600 TR55 AC Delco LM46 B4LM
AC Delco 41-601 TR55 AC Delco LM49 B4LM
AC Delco 41-602 FR5 AC Delco LM6 B4LM
AC Delco 41-603 FR4 AC Delco M40FFX HS-B9-10
AC Delco 41-606 TR55 AC Delco M41FF HS-B8
AC Delco 41-608 FR45 AC Delco M41K B8S
AC Delco 41-610 FR4 AC Delco M42FF HS-B7
AC Delco 41-611 FR45 AC Delco M42K B7S
AC Delco 41-627 E-BKR5-11 AC Delco M43FF HS-B6
AC Delco 41-627 E-BKR5 AC Delco M43S ES-BP6
AC Delco 41-628 E-BKR4-11 AC Delco M44C S-B6
AC Delco 41-628 E-BKR4-11 AC Delco M44L B6L
AC Delco 41-800 EY-BKR5 AC Delco M45 B4
AC Delco 41-800 FR5-1 AC Delco M45FF HS-BR5
AC Delco 41-801 E-BKR6-11 AC Delco M47 B4
AC Delco 41-802 EY-BPR5-11 AC Delco M90 R5670-9
AC Delco 41-802 ZGR5A AC Delco MB42K S-B6
AC Delco 41-804 EY-BPR6 AC Delco MR41T R5673-8
AC Delco 41-804 EY-BPR6-11 AC Delco MR42K BR6S
AC Delco 41-805 TR45-1GP AC Delco MR43LTS TR5
AC Delco 41-806 A-ZFR6-11 AC Delco MR43T FS-BR6
AC Delco 41-806 E-ZFR5-11 AC Delco MR44C BR6S
AC Delco 41-806 F-ZFR5-11 AC Delco MR44T YR5
AC Delco 41-806 F-ZFR6-11 AC Delco R41-5TS UR5
AC Delco 41-806 F-ZFR6-11G AC Delco R41-5TS FS-BPR6
AC Delco 41-813 GR4 AC Delco R41CF HS-BR7
AC Delco 41-819 LZTR5A-13 AC Delco R41CSL ES-BR8
AC Delco 41-823 WR4-1 AC Delco R41CXL ES-BR9
AC Delco 41-900 TR5IX AC Delco R41CXLS ES-BPR7
AC Delco 41-902 TR55IX AC Delco R41CXLS ES-BPR8
AC Delco 41-904 TR5IX AC Delco R41F HS-BR9
AC Delco 41-905 UR4GP AC Delco R41TS FS-BPR6
AC Delco 41-906 TR5IX AC Delco R41TS UR6
AC Delco 41-907 TR5IX AC Delco R41XL ES-BR9
AC Delco 41-908 PTR4B-15 AC Delco R41XLS ES-BPR9
AC Delco 41-910 TR5IX AC Delco R42-5LTS EFS-BPR6
AC Delco 41-913 TR55IX AC Delco R42-5LTS TR5
AC Delco 41-919 TR55IX AC Delco R42-5TS UR5
AC Delco 41-919 PTR5C-13 AC Delco R42-5TS FS-BPR6
AC Delco 41-921 PTR4B-15 AC Delco R42-6FS HS-BPR6
AC Delco 41-928 TR55-1GP AC Delco R42CF HS-BR6
AC Delco 41-929 TR55IX AC Delco R42CFS HS-BPR6
AC Delco 41-931 TR55IX AC Delco R42CLTS EFS-BPR6
C1
15. Manufacture Manufacture Part INT Code Manufacture Manufacture Part INT Code
AC Delco 41-931 PTR5C-13 AC Delco R42CLTS TR5
AC Delco 41-932 TR55IX AC Delco R42CT FS-BR6
AC Delco 41-932 PZTR5A-15 AC Delco R42CTS UR5
AC Delco 41-933 PTR4B-15 AC Delco R42CTS FS-BPR6
AC Delco 41-936 TR55IX AC Delco R42CXL ES-BR8
AC Delco 41-936 PTR5C-13 AC Delco R42CXLS GR5
AC Delco 41-937 PTR5C-13 AC Delco R42CXLS ES-BPR6
AC Delco 41-940 PTR4B-15 AC Delco R42F HS-BR6
AC Delco 41-940 TR55IX AC Delco R42FS HS-BPR6
AC Delco 41-942 TR55IX AC Delco R42LTS EFS-BPR6
AC Delco 41-942 PTR5C-13 AC Delco R42LTS TR5
AC Delco 41-943 TR55IX AC Delco R42LTS6 TR55
AC Delco 41-943 PTR5C-13 AC Delco R42LTSM EFS-BPR6
AC Delco 41-947 TR55IX AC Delco R42LTSM TR5
AC Delco 41-948 TR4GP AC Delco R42LTYSM TR5
AC Delco 41-948 PTR5C-13 AC Delco R42S ES-BP6
AC Delco 41-950 PTR5C-13 AC Delco R42T FS-BR6
AC Delco 41-952 TR55IX AC Delco R42TS UR5
AC Delco 41-952 PZTR5A-15 AC Delco R42TS FS-BPR6
AC Delco 41-955 A-PTR5-13 AC Delco R42TSM UR5
AC Delco 41-963 PTR5C-13 AC Delco R42TSM FS-BPR6
AC Delco 41-965 A-PTR5-13 AC Delco R42TX YR55
AC Delco 41-974 TR55IX AC Delco R42XL ES-BR8
AC Delco 41-974 PZTR5A-15 AC Delco R42XLS GR5
AC Delco 41-980 PTR5C-13 AC Delco R42XLS ES-BPR6
AC Delco 41-983 TR55IX AC Delco R42XLS6 GR5
AC Delco 41-983 PZTR5A-15 AC Delco R42XLSM ZGR5C
AC Delco 41-984 PTR4B-15 AC Delco R43 BR6S
AC Delco 41F HS-B8 AC Delco R43C BR6S
AC Delco 41TS R5674-7 AC Delco R43CFS HS-BPR6
AC Delco 41XL ES-B8 AC Delco R43CNTSE TR5-1
AC Delco 41XL R5671A-8 AC Delco R43CS XR5
AC Delco 41XLS ES-BPR7 AC Delco R43CT FS-BR6
AC Delco 420Z HS-BR4 AC Delco R43CTS UR5
AC Delco 422Z HS-BR5 AC Delco R43CTS FS-BPR6
AC Delco 425Z HS-B6 AC Delco R43CTS6 UR55
AC Delco 426FS HS-BPR6 AC Delco R43CXL ES-BR7
AC Delco 42F HS-B6 AC Delco R43CXLS ES-BPR6
AC Delco 42FS HS-BPR6 AC Delco R43FS HS-BPR6
AC Delco 42LTS EFS-BPR6 AC Delco R43LTS EFS-BPR6
AC Delco 42S ES-BP6 AC Delco R43LTS TR5
AC Delco 42TS R5674-7 AC Delco R43LTS6 TR55
AC Delco 42XL ES-B8 AC Delco R43LTSE TR4
AC Delco 42XLS ES-BP6 AC Delco R43LTSM TR5
AC Delco 430Z HS-B7 AC Delco R43LTSX TR55
AC Delco 436T R5673-9 AC Delco R43N ES-BR7
AC Delco 436TS R5674-9 AC Delco R43NTSE TR5-1
AC Delco 436XLS R5672A-9 AC Delco R43S ES-BP6
AC Delco 436XLS ES-BP9 AC Delco R43T FS-BR6
AC Delco 438T R5673-8 AC Delco R43T6 YR55
AC Delco 438TS R5674-8 AC Delco R43TS UR5
AC Delco 438XLS R5672A-8 AC Delco R43TS FS-BPR6
AC Delco 438XLS ES-BPR8 AC Delco R43TS6 UR55
C2
16. Manufacture Manufacture Part INT Code Manufacture Manufacture Part INT Code
AC Delco 43FS HS-BPR6 AC Delco R43TSK UR5
AC Delco 43N ES-BR7 AC Delco R43TSX UR55
AC Delco 43S ES-BP6 AC Delco R43TX YR55
AC Delco 43TS R5674-7 AC Delco R43XL ES-BR7
AC Delco 43XL ES-BR7 AC Delco R43XLS GR5
AC Delco 43XLS ES-BP6 AC Delco R43XLS ES-BPR6
AC Delco 440T R5673-7 AC Delco R44 BR6S
AC Delco 440XLS R5672A-8 AC Delco R44CF HS-BR5
AC Delco 440XLS ES-BPR8 AC Delco R44CNTSE TR5-1
AC Delco 445Z HS-B8 AC Delco R44CXL ES-BR6
AC Delco 44F HS-BR5 AC Delco R44CXLS ES-BPR5
AC Delco 44FFS HS-BPR5 AC Delco R44F HS-BR5
AC Delco 44N ES-BR6 AC Delco R44LT EF-BR6
AC Delco 44NS ES-BP5 AC Delco R44LTS TR4
AC Delco 44S ES-BP5 AC Delco R44LTS6 TR55
AC Delco 44T YR5 AC Delco R44LTSK6 TR55
AC Delco 44TS UR4 AC Delco R44LTSM TR4
AC Delco 44XL ES-BR6 AC Delco R44LTSM6 TR55
AC Delco 44XLO ES-BP5 AC Delco R44LTSMA TR4
AC Delco 44XLS ES-BP5 AC Delco R44N ES-BR6
AC Delco 45F HS-BR5 AC Delco R44NS ES-BPR5
AC Delco 45FFS HS-BPR5 AC Delco R44NTSE TR5-1
AC Delco 45L B4L AC Delco R44S XR4
AC Delco 45NS ES-BP5 AC Delco R44SX XR45
AC Delco 45S ES-BP5 AC Delco R44T YR5
AC Delco 45TS UR4 AC Delco R44TS UR4
AC Delco 45XL ES-BR6 AC Delco R44TS8 UR45
AC Delco 45XLS ES-BP5 AC Delco R44TSX UR45
AC Delco 46F HS-BR5 AC Delco R44TX YR55
AC Delco 46FFS HS-BPR5 AC Delco R44XL ES-BR6
AC Delco 46N ES-BR5 AC Delco R44XLS GR4
AC Delco 46S ES-BP5 AC Delco R44XLS ES-BPR5
AC Delco 46TS UR4 AC Delco R44XLS6 GR45
AC Delco 46XL ES-BR5 AC Delco R44XLSE ZGR5C
AC Delco 46XLS ES-BPR4 AC Delco R44XLSM ZGR5C
AC Delco 47XL ES-BR4 AC Delco R45 BR6S
AC Delco 83CTS WR5 AC Delco R45LTS6 TR55
AC Delco 83TS WR5 AC Delco R45LTSK6 TR55
AC Delco 84T AR6FS AC Delco R45LTSM TR4
AC Delco 84TS WR5 AC Delco R45NS ES-BPR5
AC Delco 85T WR5 AC Delco R45NSX GR45
AC Delco 85TS WR5 AC Delco R45NTSE TR5-1
AC Delco 86TS WR5 AC Delco R45S XR4
AC Delco B4031 B4 AC Delco R45SX XR45
AC Delco B43 S-B6 AC Delco R45T YR5
AC Delco B44S ES-BP5 AC Delco R45TS UR4
AC Delco B45 B4 AC Delco R45TS8 UR45
AC Delco C42-1 S-B6 AC Delco R45TSX UR45
AC Delco C42CFS HS-BPR6 AC Delco R45TX YR55
AC Delco C42CLTS TR5 AC Delco R45XL ES-BR6
AC Delco C42CXLS ES-BP6 AC Delco R45XLS ES-BPR4
AC Delco C42LTS TR5 AC Delco R45XLS6 GR45
AC Delco C42N ES-BR7 AC Delco R46 BR6S
C3
17. Manufacture Manufacture Part INT Code Manufacture Manufacture Part INT Code
AC Delco C43 S-B6 AC Delco R46LTS TR4
AC Delco C43CLTS TR5 AC Delco R46N ES-BR5
AC Delco C43CXLS ES-BP6 AC Delco R46S XR4
AC Delco C43L B6L AC Delco R46SX XR45
AC Delco C43N ES-BR6 AC Delco R46SZ XR45
AC Delco C44 S-B6 AC Delco R46T YR5
AC Delco C44N ES-BR6 AC Delco R46TS UR4
AC Delco C44NS ES-BP5 AC Delco R46TSX UR45
AC Delco C44S ES-BP5 AC Delco R46TX YR55
AC Delco C44XL ES-BR6 AC Delco R46XL ES-BR5
AC Delco C45 B4 AC Delco R46XLS ES-BPR4
AC Delco C45L B4L AC Delco R47S XR4
AC Delco C49 B2 AC Delco R83CT AR6FS
AC Delco C81 AB8 AC Delco R83CTS WR5
AC Delco C82 A7 AC Delco R83T AR6FS
AC Delco C83 A7 AC Delco R83TS WR5
AC Delco C83T AR6FS AC Delco R84TS WR5
AC Delco C84T AR6FS AC Delco R84TSX WR5
AC Delco C85TS WR5 AC Delco R85T AR6FS
AC Delco C86 A6 AC Delco R85TS WR5
AC Delco C87 A6 AC Delco R86T AR6FS
AC Delco CF44TS UR4 AC Delco R86TS5 WR5
AC Delco CR42CFS UR5 AC Delco S102F HSA-C7
AC Delco CR42CXLS GR5 AC Delco S104F HSA-CR6
AC Delco CR42CXLS ES-BPR6 AC Delco S121F HA-D8
AC Delco CR42N ES-BR7 AC Delco S121XL EA-D8
AC Delco CR42TS UR5 AC Delco S122F HA-D8
AC Delco CR43 BR6S AC Delco S123XL EA-D7
AC Delco CR43CXLS ES-BPR6 AC Delco S124FS HA-D6
AC Delco CR43K BR6S AC Delco S404XLG EIX-BR10
AC Delco CR43N ES-BR6 AC Delco S408XLG B9EG
AC Delco CR43S XR5 AC Delco S40F HS-BR9
AC Delco CR43TS UR5 AC Delco S40FR HS-BR9
AC Delco CR43TSM UR5 AC Delco S40XL R5671A-10
AC Delco CR44N ES-BR6 AC Delco S40XL ES-B10
AC Delco CR44NS GR4 AC Delco S40XLR ES-BR9
AC Delco CR44NS ES-BPR5 AC Delco S41F HS-B8
AC Delco CR44TS UR4 AC Delco S41FR HS-BR8
AC Delco CR44TSM UR5 AC Delco S41XL ES-B9
AC Delco CR45TS UR4 AC Delco S41XL R5671A-9
AC Delco CR5CXLS GR5GP AC Delco S41XLR ES-BR9
AC Delco CR83T AR6FS AC Delco S42 B7S
AC Delco CS40 A-BM7 AC Delco S42F HS-B7
AC Delco CS41 A-BM7 AC Delco S42FR HS-BR7
AC Delco CS41T BM7F AC Delco S42XL ES-B8
AC Delco CS42 A-BM7 AC Delco S42XLR ES-BR8
AC Delco CS42S A-BM7 AC Delco S438XLG EIX-BR8
AC Delco CS42T BM6F AC Delco S43XL ES-BR7
AC Delco CS45 A-BM6 AC Delco S43XLR ES-BR7
AC Delco CS45T BM6F AC Delco S44 S-B6
AC Delco CS49 A-BM4 AC Delco S44F HS-BR5
AC Delco CSR42S A-BPMR7 AC Delco S44XL ES-BR6
AC Delco CSR45 A-BMR6 AC Delco S45F HS-BR5
C4
18. Manufacture Manufacture Part INT Code Manufacture Manufacture Part INT Code
AC Delco FR1LS E-BKR6 AC Delco S46 B4
AC Delco FR2LS FR5 AC Delco S81F AB8
AC Delco FR2LS E-BKR6 AC Delco S82F AB8
AC Delco FR2LSK FR5 AC Delco S83F A7
AC Delco FR2LSK E-BKR6 AC Delco S85F A6
AC Delco FR3CLS FR4 AC Delco SB41 B7S
AC Delco FR3CLS E-BKR5 AC Delco SV4XL BUE
AC Delco FR3CLS6 FR45 AC Delco V40FFK BUHW-2
AC Delco FR3LM A-ZFR5-11 AC Delco V40FFM BUHW
AC Delco FR3LS FR4 AC Delco V40FFS BUHW
AC Delco FR3LS E-BKR5 AC Delco VB40FFM BUHXW-1
AC Delco FR3LS6 FR45 AC Delco VR40FFK BUZHW-2
AC Delco FR3LSJ FR4 AC Delco VR40FFM BUZHW
C
50. C38
INT SPARK PLUG GROUP
JIANGMEN LIBEN AUTO PARTS INDUSTRIAL CO., LTD
www.intsparkplug.com
www.liben-parts.com
Add.: YongNing Street, LiLe Town, JiangMen City, GuangDong, China 529060
Tel: +86-750-2031388 Fax: +86-750-2038833
Phone: +86-13211273200 E-mail: sales@liben-parts.com
Skype: audreyxiaoou QQ: 1990134624
QUALITY IS WHEN THE
CUSTOMER RETURNS,
NOT THE PRODUCT!
