Gaskets
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CumminsIntake Manifold Gasket Cummins Engine ISC
Connection Gasket / Intake Manifold Cover Gasket Cummins Engine ISC
It is a gasket for the intake system, installed in the intake manifold area, designed to seal the mating surface and prevent air or pressure leaks in the intake circuit; it is used on intake manifolds equipped with an air intake heater.
Used on Cummins ISC, ISL / ISL9 – 8.9 L, and QSL / QSL9 – 8.9 L engines
Before placing an order, I always recommend checking the ESN (Engine Serial Number), CPL, and intake manifold configuration, because not all ISL/QSL models necessarily use the same heater/manifold configuration.
(0 reviews)$9.68 Add to cart -
CumminsCover Plate Gasket Cummins Engine ISC 8.3 – Engine QSC 8.3
Cover Plate Gasket Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
(0 reviews)$2.53 Add to cart -
CumminsRear Crankshaft Seal Kit Cummins Engine ISC – Engine QSC
Rear Oil Seal Kit Cummins Engine ISC 8.3 – Engine QSC 8.3
Rear crankshaft oil seal kit with a double-lip seal, designed for Cummins applications with a wet flywheel/clutch housing. Location: rear end of the crankshaft, transmission/flywheel side. Documented equivalent seal made of PTFE. Its function is to prevent engine oil from leaking from the rear end of the crankshaft, maintaining a seal during crankshaft rotation.
The following are listed: ISB4.5, ISB6.7, QSB4.5, QSB6.7, 6C8.3, 6CT8.3, 6CTA8.3, ISC, QSC, ISL, and QSL for applications with a wet clutch housing. And on other engines: 4BT3.9, 6BT5.9, 6CT8.3, 6CTA8.3, 6CTAA8.3, and QSL9
Always verify the ESN (Engine Serial Number), CPL, and wet/dry flywheel housing configuration, because the same engine may use a different rear seal depending on the configuration.
(0 reviews)$39.46 Add to cart -
CumminsRectangular Ring Seal Cummins Engine ISC – Engine QSC
Water Inlet Seal Cummins Engine ISC 8.3 – Engine QSC 8.3
Water inlet connection for the cooling circuit. It seals the joint between the components of the cooling circuit, preventing coolant leaks and maintaining the system’s proper seal. It is an elastomeric gasket designed to withstand coolant, temperature, pressure, and thermal cycling.
Observed on 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSC 8.3, ISL 8.9, QSL 8.9 engines.
It is advisable to always verify using ESN + CPL, the Cummins QuickServe catalog, or the original part number installed. This prevents errors caused by differences in model year, water inlet configuration, cooling system, and part replacements.
(0 reviews)$6.25 Add to cart -
CumminsSealing O-Ring Cummins Engine ISC – Engine QSC
O-Ring Seal Cummins Engine ISC 8.3 – Engine QSC 8.3
It is located between the oil pump and its housing or fitting, providing a static seal between mating components and preventing leaks of oil or other fluids in the circuit where it is installed. It also appears in the section on the lubricating oil system/oil pump, but the exact location may vary depending on the CPL and configuration.
Observed on 6C 8.3 / 6CT / 6CTA, ISC 8.3, QSC 8.3, ISL 8.9/9, QSL 8.9/9, QSB 6.7, and ISB 6.7 engines.
We always recommend checking the ESN and CPL in the Cummins OEM catalog, because the same O-ring is used across different engine families, and the quantity and location may vary depending on the engine configuration.
(0 reviews)$1.70 Add to cart -
CumminsSealing O-Ring Cummins Engine ISC – Engine QSC
O-Ring Seal Cummins Engine ISC 8.3 – Engine QSC 8.3
It seals the joint between mated components, preventing fluid leaks and maintaining circuit pressure. It is installed in a circular seat between two mated components of the fuel system, where it creates a seal that prevents diesel leaks and pressure loss. It is not an external engine block gasket. Some sources refer to this family of seals as Fuel Shaft O-Rings, so the application may be associated with the shaft/fuel system circuit area.
Observed on 6C 8.3 6CT 6CTA, ISC 8.3, QSC 8.3, ISL 8.9, QSL 8.9 engines.
We always recommend checking the ESN and CPL in the Cummins OEM catalog, because the same O-ring is used across different engine families, and the quantity and location may vary depending on the engine configuration.
(0 reviews)$0.25 Add to cart -
CumminsSealing O-Ring Cummins Engine ISC – Engine QSC
O-Ring Seal Cummins Engine ISC 8.3 – Engine QSC 8.3
Used primarily in the fuel pump system, at the point where the pump connects to its housing or mounting surface, Cummins officially specifies it primarily for 8.9-liter ISC/ISL Tier 3 engines. It creates a seal between the mating surfaces of the fuel pump system, preventing leaks and maintaining proper circuit integrity. Made of Viton/FKM, 75 durometer, a material resistant to fuels, oils, and high temperatures.
Observed on 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSC 8.3, ISL 8.9, ISL9 e QSL 8.9 engines.
Before selling or installing an engine, I always recommend verifying the engine’s ESN and CPL, either using Cummins QuickServe or the OEM catalog, or by checking the original number that was removed. The C/ISC/QSC/ISL/QSL family includes numerous revisions to the fuel system, and a cross-reference may only be valid for certain CPLs or configurations.
(0 reviews)$0.25 Add to cart -
CumminsRear Crankshaft Seal Kit Cummins Engine ISC – Engine QSC
Rear Main Seal Kit Cummins Engine ISC 8.3 – Engine QSC 8.3
The kit provides a seal at the rear of the crankshaft, preventing engine oil from leaking at the point where the crankshaft exits the engine block toward the flywheel/transmission housing. It is therefore installed at the rear of the engine block, on the flywheel side. The sealing component is typically made of a technical elastomer that is resistant to oil and high temperatures, combined with metal support/reinforcement elements.
Compatible engines: 4B, 4BT, 6B, 6BT, 6C, 6CT, 6CTA, ISB, QSB, ISC, QSC, ISL, QSL
However, we recommend checking the ESN/CPL before the sale: not all configurations within the same engine family necessarily use the same oil seal.
(0 reviews)$34.02 Add to cart -
CumminsRear Crankshaft Oil Seal Cummins Engine ISC- Engine QSC
Rear Main Seal Cummins Engine ISC 8.3 – Engine QSC 8.3
Rear crankshaft oil seal located in the area where the engine block connects to the flywheel housing. Its function is to prevent engine oil from leaking around the rear end of the crankshaft and to limit the entry of contaminants. This family of oil seals is available with a PTFE sealing element.
Used on the following engines: 4B 3.9, 4BT 3.9, 4BTA 3.9, QSB 4.5, 6B 5.9, 6BT 5.9, 6BTA 5.9, ISB 5.9, QSB 5.9, ISB 6.7, QSB 6.7, B6.7, 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSC 8.3, ISL 8.9, QSL 8.9 / QSL9.
With final verification via ESN/CPL for the specific configuration.
(0 reviews)$24.45 Add to cart -
CumminsFront Crankshaft Seal Kit Cummins Engine ISC – Engine QSC
Front Crankshaft Oil Seal Kit Cummins Engine ISC 8.3 – Engine QSC 8.3
The kit is fitted to the front of the crankshaft, at the front gear housing/front cover. Its function is to prevent engine oil from leaking around the crankshaft whilst it is rotating. It typically comprises a technical elastomer seal with a metal reinforcement and a metal support/cover.
Used on the 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSC 8.3, ISL, QSL / QSL 9 engines.
Always check the ESN and CPL before sale, as there may be variations within the ISC/QSC/ISL/QSL families depending on configuration, year and front gear housing.
(0 reviews)$39.00 Add to cart -
CumminsFront Crankshaft Seal Kit Cummins Engine ISC – Engine QSC
Front Seal Service Kit Cummins Engine ISC 8.3 – Engine QSC 8.3
It is located at the front of the crankshaft, in the gear housing/front cover area. It prevents engine oil from leaking around the front end of the crankshaft. The oil seal is typically made of an oil- and temperature-resistant elastomer with a metal backing; the wear sleeve is made of metal and creates a new sealing surface on the shaft when the original sealing surface is worn.
Used on the 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSC 8.3, ISL, QSL engines.
Always compare the ESN and CPL in Cummins QuickServe or the OEM catalog. Cummins allows you to search for parts using the Engine Serial Number and part number, and this is important because there may be different configurations of oil seals, sleeves, and front gear housings within the ISC/ISL/QSC/QSL models.
(0 reviews)$15.95 Add to cart -
CumminsEGR Valve Gasket Cummins Engine ISC – Engine QSC
Exhaust Gas Recirculation Valve Gasket Cummins Engine ISC 8.3 – Engine QSC 8.3
Installed in the EGR (Exhaust Gas Recirculation) circuit. It serves to create a seal between the EGR valve and the corresponding manifold/duct, preventing exhaust gas leaks during recirculation. A proper seal allows the EGR system to correctly route a portion of the exhaust gases back into the intake and contributes to the proper functioning of the emissions control system.
It is used on Cummins 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC, QSC, ISL 8.9, and QSL 8.9 / 9 engines.
I wouldn’t automatically consider all ISC/ISL/QSC/QSL units to be compatible. To ensure a proper sale, you need to verify the ESN/CPL and EGR configuration, because specifications can vary depending on the model year, emissions certification, and engine build.
(0 reviews)$5.75 Add to cart -
CumminsGasket – Oil Drain Cummins Engine 6CT 8.3 – Engine ISC / QSC 8.3
Gasket – Oil Drain Cummins Engine 6CT 8.3 – Engine ISC / QSC 8.3
To be 100% certain, check the engine serial number (ESN), the return line and turbocharger may vary depending on the CPL, year, and turbo configuration.
(0 reviews)$0.99 Add to cart -
CumminsExhaust Manifold Gasket Cummins Engine ISC – Engine QSC
Exhaust Manifold Gasket Cummins Engine ISC 8.3 – Engine QSC 8.3
It is an individual gasket installed between the cylinder head and the exhaust manifold. Its function is to seal high-temperature exhaust gases, preventing leaks between the cylinder head and the multilayer metal exhaust manifold.
Used on Cummins 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSC 8.3, ISL 8.9 / 9, ISLe, ISL G, and QSL 8.9 / 9 engines.
Before purchasing, I recommend contacting the distributor to verify the product using the Engine Serial Number (ESN) and CPL, especially for the ISL G, because some configurations require the updated gasket.
(0 reviews)$7.86 Add to cart -
CumminsGasket Connection Cummins Engine ISC 8.3 – Engine QSC 8.3
Gasket Connection Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
(0 reviews)$7.02 Add to cart -
CumminsLower Gasket kit Engine Cummins Engine ISC – Engine QSC
Lower Gasket Set Engine Cummins Engine ISC 8.3 – Engine QSC 8.3
This kit is designed for the lower part of the engine and includes gaskets, O-rings, seals, and oil seals used during engine overhaul or rebuild. It is used to restore the sealing integrity of the lower engine components, primarily preventing leaks of oil, coolant, and other fluids, as well as ensuring proper sealing of the components during an overhaul.
Motors with verified compatibility: 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSCC 8.3, ISL 8.9, QSL 8.9
Final compatibility must always be verified using the ESN and CPL, because not all configurations within the same engine family necessarily use the same gasket set.
(0 reviews)$352.85 Add to cart -
CumminsGear Housing Gasket Cummins Engine ISC 8.3 – Engine QSC 8.3
Gear Housing Gasket Cummins Engine ISC 8.3 – Engine QSC 8.3
Cummins specifically specifies its use on 8.9-liter Tier 3 ISC/ISL automotive engines.
The ESN remains the most important check,
because the same engine model can be fitted with different
parts depending on the year of manufacture or the CPL(0 reviews)$43.20 Add to cart -
CumminsHead Gasket Set Lower Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
Gasket Set Lower Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
(0 reviews)$350.98 Add to cart -
CumminsUpper Gasket Set Cummins Engine ISC – Engine QSC
Cylinder Head Gasket Set Cummins Engine ISC 8.3 – Engine QSC 8.3
This is a set of gaskets and O-rings for the upper part of the engine, used during work on the cylinder head. It is designed to restore the seals after the cylinder head has been removed, preventing leaks. It contains various types of gaskets, O-rings, and sealing washers.
Motors with verified compatibility: 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSCC 8.3, ISL 8.9, ISLe 8.9, QSL 8.9
I always recommend verifying the Engine Serial Number (ESN) and CPL, as well as the ISC/ISL/QSL version. In particular, the included head gasket may have a specific thickness or configuration.
(0 reviews)$334.06 Add to cart -
CumminsHead Gasket Set Upper Cummins Engine ISC – Engine QSC
Upper Gasket Kit Cummins Engine ISC 8.3 – Engine QSC 8.3
This is the gasket kit for the upper part of the engine, used during work on the cylinder head or engine overhaul. It is designed to restore the seal between the cylinder head, engine block, manifolds, fuel injectors, oil circuit, and other upper engine components. It includes the cylinder head gasket, exhaust manifold gaskets, valve stem seals, fuel injector seals, O-rings, and other gaskets for the upper part of the engine.
For select ISC 8.3, QSC 8.3, ISL 8.9, and QSL 8.9/QSL9 applications with the CAPS CM554 system.
Before placing an order, verify the Engine Serial Number (ESN) and CPL; this does not apply to all ISC/QSC/ISL/QSL versions; the CAPS/CM554 configuration is the determining factor.
(0 reviews)$330.99 Add to cart -
CumminsHead Gasket Set Upper Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
Head Gasket Set Upper Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
(0 reviews)$382.00 Add to cart -
CumminsHead Gasket Set Upper Cummins Engine ISC 8.3 – Engine QSC 8.3
Head Gasket Set Upper Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
(0 reviews)$327.26 Add to cart -
CumminsIntake Valve Seat Insert Cummins Engine ISC 8.3
Inlet Valve Seat Cummins Engine ISC 8.3
An insert in the intake valve seat installed in the cylinder head. Its function is to seal the combustion chamber when the intake valve is closed, transfer heat from the valve to the cylinder head, and provide wear resistance in the area of the cylinder head subjected to continuous opening and closing cycles.
Used on various Cummins ISC 8.3, QSC 8.3, ISL 8.9, QSL 8.9, and ISLe/ISLG 8.9 configurations.
I always recommend verifying the part using the ESN (Engine Serial Number) and CPL, because Cummins uses different part numbers depending on the cylinder head configuration and the control module.
(0 reviews)$6.35 Add to cart -
CumminsIntake Manifold Gasket Cummins Engine ISC 8.3 – Engine QSC 8.3
Intake Manifold Gasket Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
(0 reviews)$14.95 Add to cart -
CumminsIntake Manifold Gasket Cummins Engine ISC 8.3 – Engine QSC 8.3
Intake Manifold Gasket Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
(0 reviews)$9.85 Add to cart -
CumminsOil Cooler Core Inner Gasket Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
Oil Cooler Core Inner Gasket Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
(0 reviews)$7.66 Add to cart -
CumminsOil Cooler Gasket Cummins Engine ISC 8.3 – Engine QSC 8.3
Oil Cooler Gasket Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
(0 reviews)$11.86 Add to cart -
CumminsOil Pan Gasket Cummins Engine ISC 8.3 – Engine QSC 8.3
Oil Pan Gasket Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
(0 reviews)$25.05 Add to cart -
CumminsOil Pan Gasket Cummins Engine ISC 8.3 – Engine QSC 8.3
Oil Pan Gasket Cummins Engine ISC 8.3 – Engine QSC 8.3
The same ISC/ISL family can use different bowls depending on the application—road, industrial, or marine—or the position of the filter housing.
The ESN remains the most important check,
because the same engine model can be fitted with different
parts depending on the year of manufacture or the CPL.(0 reviews)$25.05 Add to cart -
CumminsOil Pan Gasket Cummins Engine 6C 8.3 – Engine ISC 8.3 – Engine QSC 8.3
Oil Pan Gasket Cummins Engine 6C 8.3 – Engine ISC 8.3 – Engine QSC 8.3
The ESN remains the most important check,
because the same engine model can be fitted with different
parts depending on the year of manufacture or the CPL.(0 reviews)$118.86 Add to cart -
CumminsOil Pan Gasket Cummins Engine 6C 8.3L – Engine ISC 8.3L – Engine QSC 8.3L
Oil Pan Gasket Cummins Engine 6C 8.3L – Engine ISC 8.3L – Engine QSC 8.3L
Some catalogs extend the application to ISC, QSC, ISL, and QSL. Final compatibility must be verified using the ESN and CPL, as the oil pan may vary depending on the configuration and application.
(0 reviews)$147.05 Add to cart -
CumminsFront Crankshaft Seal Kit Cummins Engine ISC 8.3 – Engine QSC 8.3
Front Oil Seal Kit Cummins Engine ISC 8.3 – Engine QSC 8.3
The kit is fitted to the front of the crankshaft, at the front gear housing/front cover. Its main function is to prevent engine oil from leaking around the crankshaft whilst it is rotating. The oil seal is normally made of an oil- and heat-resistant elastomer with a metal support ring.
Used on the 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSC 8.3, ISL, QSL / QSL 9 engines.
Final compatibility must always be checked using the engine’s ESN and CPL, or the Cummins OEM catalogue. Within the QSL family, there may be variations depending on the year, configuration and CPL; therefore, the engine family alone does not guarantee 100% suitability.
(0 reviews)$15.42 Add to cart -
CumminsFront Crankshaft Seal Kit Cummins Engine ISC – Engine QSC
Front Crankshaft Seal & Sleeve Kit Cummins Engine ISC 8.3 – Engine QSC 8.3
Front end of the crankshaft, pulley/damper side. Prevents engine oil from leaking around the front end of the crankshaft. Oil-resistant NBR nitrile rubber, metal reinforcement, and hardened steel wear sleeve. The kit includes an oil seal, wear sleeve, and dust shield.
Documented applications for Cummins 6C / 6CT 8.3, 6CTA 8.3, ISC 8.3, QSC 8.3, ISL 8.9, and QSL 8.9 / QSL 9 engines.
We recommend always checking the ESN and CPL, because Cummins may use different front oil seal configurations depending on the series, model year, and engine configuration.
(0 reviews)$30.95 Add to cart -
CumminsRear Cover Gasket Cummins Engine ISC 8.3 – Engine QSC 8.3
Rear Cover Gasket Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
(0 reviews)$6.05 Add to cart -
CumminsRear Cam Bore Seal Cummins Engine ISC – Engine QSC
Camshaft Bore O-Ring Cummins Engine ISC – Engine QSC
It seals the rear opening of the camshaft housing, preventing engine oil leaks. An aftermarket catalog also refers to it as the camshaft plug O-ring.
For engines in the C, ISC, QSC, ISL, and QSL families; Cummins specifically lists ISC/ISL 8.9 L Tier 3 applications.
Before considering them 100% interchangeable, I still recommend verifying them using the ESN (Engine Serial Number), CPL, and QuickServe, because their application may vary depending on the engine configuration.
(0 reviews)$0.89 Add to cart -
CumminsSealing Ring, Liner Cummins Engine ISC 8.3 – Engine QSC 8.3
Sealing Ring, Liner Cummins Engine ISC 8.3-Cummins Engine QSC 8.3
(0 reviews)$4.99 Add to cart