QSL

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Cummins
Expansion Plug Cummins Engine ISL – Engine QSL

Camshaft Bore Plug Cummins Engine ISL – Engine QSL

Il Cummins 3901969 è un Expansion Plug / Camshaft Bore Plug / Block Expansion Plug, cioè un tappo di espansione del blocco, utilizzato in particolare per chiudere il foro posteriore dell’albero a camme (Rear Cam Bore). Cummins lo cataloga come Expansion Plug.

The documented applications primarily include this part for the following engines: Cummins C Series / 6C 8.3, 6CT 8.3 / 6CTA 8.3, ISC 8.3, QSC 8.3, ISL 8.9, QSL 8.9 / QSL9.

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.

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Cummins
Pump Tappet Cummins Engine ISL – Engine QSL

Fuel Pump Tappet Roller Assembly Cummins Engine ISL – Engine QSL

It transmits mechanical motion to the pumping section of the high-pressure pump, it operates within the fuel pump drive system. The roller follows the control profile and transfers force to the pump, enabling the pump to generate the pressure required for the fuel injection system.

The part is also listed for use in Cummins ISC 8.3 and QSC 8.3 / PACCAR PX-8 applications, while other catalogs also list it for use with ISL 8.9 / ISL 9, QSL 8.9 / QSL 9 and the CCR1600 pump.

However, to ensure exact compatibility, you must verify the ESN (Engine Serial Number), CPL, pump model, and pump part number, because there may be different configurations within the ISC/ISL families.

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$86.00 Add to cart
Cummins
Rear Cam Bore Seal Cummins Engine ISL – Engine QSL

Camshaft Bore O-Ring Cummins Engine ISL – Engine QSL

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.

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Cummins
Rocker Arm Assembly Cummins Engine ISL – Engine QSL

Rocker Lever Assembly Cummins Engine ISL – Engine QSL

The rocker arm is part of the valve train. It receives motion from the camshaft via the rocker arm and pushrod and transfers it to the valves, enabling the intake and exhaust valves to open and close properly. It thus maintains proper synchronization between the valve train and cylinder operation.

Compatible Engines: Cummins 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSC 8.3, ISL 8.9, QSL9.

However, I recommend checking the ESN (Engine Serial Number), CPL, and engine configuration, because within the 6C family, there may be different rocker arm variants depending on the model year and cylinder head configuration.

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Cummins
Rod Push Cummins Engine ISL – Engine QSL

Intake & Exhaust Valve Pushrod Cummins Engine ISL – Engine QSL

A rocker arm shaft designed to transfer the rocker arm’s motion to the rocker, ensuring proper operation of the engine’s intake and exhaust valves.

Cummins C Series 8.3 L engines, including the 6C, 6CT, 6CTA, and C8.3. Cummins specifically notes that these are primarily intended for use on non-certified C 8.3 L engines; additionally, aftermarket applications include ISC, QSC, ISL, and QSL engines,

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.

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Cummins
Tappet Guide Cummins Engine ISL – Engine QSL

Tappet Guide Pin Cummins Engine ISL – Engine QSL

It keeps the rocker arm properly guided and aligned during the movement generated by the camshaft, contributing to the proper operation of the valve train.

Per motori Cummins ISC, ISL; altre fonti aftermarket lo associano anche a QSC/QSL e alla famiglia 6C 8.3L.

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.

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Cummins
Piston Kit Cummins Engine QSL 8.9 / 9

Piston Kit Cummins Engine QSL 8.9 L / QSL 9

This is an articulated piston kit, used primarily on Cummins QSL9 / QSL 8.9 L engines with the HPCR CM850 system. The kit is mounted inside the cylinder bore and connected to the connecting rod via the pin. Its function is to convert the pressure generated by combustion into linear motion and then, through the connecting rod and crankshaft, into rotational motion. The piston rings ensure that combustion gases are contained, control oil on the cylinder walls, and aid in heat transfer.

Also used in Cummins ISC, QSC, ISL, QSL 8.9 L, and QSL 9 engines.

It should not be automatically considered interchangeable with all QSL9 pistons. There are different configurations; always verify at least one of the following: ESN (Engine Serial Number), CPL, ECM/Control Module, Cummins QuickServe catalog, old piston/crown number, engine application, and dimensional comparison.

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Cummins
Cylinder Liner Sealing Ring Cummins Engine QSL

Seal, Rectangular Ring – Cylinder Liner Cummins Engine QSL 8.9 / QSL 9

It is mounted in the lower section/seal area of the cylinder liner, between the liner and the engine block. It is part of the cylinder liner sealing system. Its main function is to seal the cylinder liner against the engine block, prevent coolant from flowing into unintended areas, prevent contamination between coolant and engine oil, and maintain proper sealing of the cylinder liner during the engine’s thermal cycles.

Verified compatible Cummins engines: 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSC 8.3, ISL 8.9/9, QSL 8.9/9.

I recommend verifying compatibility using the ESN (Engine Serial Number), CPL, QuickServe/Cummins Catalog, cylinder liner number, block number/casting number, engine year/configuration, and a dimensional comparison of the ring.

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Fuel Filter
Secondary Fuel Spin-on Cummins Engine QSL

Secondary Fuel Spin-on Cummins Engine QSL

Thread O.D Length I. Gskt O. Ring

M16 x 1.5 3 1/32 (77.0) 4 27/32 (123.0) G449-B Included

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Cummins
Valve Spring Cummins Engine ISL – Engine QSL

Spring – Valve Cummins Engine ISL 8.9 – Engine QSL 8.9 / QSL 9

Located on the cylinder head, on the valve assembly, it is a valve spring installed in the cylinder head. It is used on both the intake and exhaust sides, depending on the engine configuration. It is an engine valve spring made of high-strength spring steel.

It is equipped with Cummins ISC 8.3, QSC 8.3, ISL 8.9, QSL 8.9, and QSL 9 engines.

Before the sale, compatibility must be verified using the ESN (Engine Serial Number), CPL, QuickServe/Cummins Catalog, installed part number, valve rotator configuration, parts manual, and dimensional comparison. The simple “QSL” model is not sufficient to guarantee compatibility with every ESN.

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Starter & Alternators
Starter Cummins Engine QSL
Starter Cummins Engine QSL
- VOLT :24
- CONDITION :New
- ROTATION DIRECTION: Clockwise
- ELECTRIC STARTER TYPE :Direct Drive (DD)
- NUMBER OF TEETH :11
- WARRANTY :1 Year
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Starter & Alternators
Starter Cummins Engine QSL
Starter Cummins Engine QSL
- VOLT :12
- POWER :7.300 kw
- HP :9.789
- CONDITION :New
- ROTATION DIRECTION :Clockwise
- ELECTRIC STARTER TYPE :Direct Drive (DD)
- NUMBER OF TEETH:11
- WARRANTY :1 Year
- Right Hand Lever Housing
- SOLENOID POSITION :82 Â°
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$629.96 Add to cart
Camshaft
Valve Tappet Lifter Cummins Engine ISL – Engine QSL

Valve Tappet Cummins Engine ISL – Engine QSL

The tappet is installed between the camshaft cam and the rest of the valve train. It transmits the cam’s motion to the pushrod/rocker arm system, allowing the valves to open and close properly.

Applications for Cummins ISL, QSL, ISC, QSC, and C-Series engines.

Final compatibility must be verified using ESN, CPL, QuickServe, and the Cummins catalog before installation.

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Turbo
Turbocharger Cartridge Cummins Engine QSL

Turbocharger Cartridge Cummins Engine QSL

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$1,137.51 Add to cart
Turbo
Turbocharger Cummins Engine QSL

Turbocharge Cummins Engine QSL

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$428.56 Add to cart
Cummins
New Cylinder Head Cummins Engine QSC – Engine QSL

Cylinder Head Cummins Engine QSC 8.3 – Engine QSL 8.9 / QSL 9

It is identified as a Cummins cylinder head for diesel engines. 6 cylinders, 24 valves. It is mounted at the top of the engine block, above the cylinders. It is secured to the engine block using cylinder head bolts, with the cylinder head gasket positioned between the cylinder head and the engine block. It seals the top of the cylinders and forms the upper part of the combustion chambers. Its main functions are to allow air to enter through the intake valves, to expel exhaust gases through the exhaust valves, to house and guide the valves, to support the fuel injectors, and to allow lubricating oil and coolant to flow through dedicated internal passages. Valves and springs included.

It is recommended for use with Cummins ISC 8.3 CM2150, QSC 8.3-500 HO CM850/CM2850, ISL 8.9 CM850, QSL 8.9 CM850/CM2850, QSL 9 M CM2250 L106, and 6C 8.3 series engines.

Always double-check; I wouldn’t assume the number is universally interchangeable on every QSL/ISL without verifying the ESN and CPL.

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Turbo
Turbocharger Cummins Engine QSL

Turbocharger Cummins Engine QSL

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$1,428.57 Add to cart
Exhaust
Turbocharger Gasket Cummins Engine

Turbocharger Gasket Cummins Engine

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$21.68 Add to cart
Gaskets
Turbocharger Gasket Cummins Engine L10 – Engine QSL

Turbocharger Gasket Cummins Engine L10-Cummins Engine ISL-Cummins Engine QSL

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L Series
Turbocharger Mounting Gasket Cummins Engine ISL-Cummins Engine QSL

Turbocharger Mounting Gasket Cummins Engine ISL-Cummins Engine QSL

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$2.70 Add to cart
Cummins
Valve Cover Gasket Cummins Engine ISL – Engine QSL

Rocker Cover Gasket Cummins Engine ISL 8.9 / ISL 9 – Engine QSL 8.9 / QSL 9

It is located at the top of the engine, under the valve/rocker cover. It is installed between the rocker/valve cover and the top of the cylinder head, creating the seal needed to prevent oil leaks from the valve train.

Fitted with Cummins 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSC 8.3, ISL 8.9, ISL 9, QSL 8.9, and QSL 9 engines.

Before making a purchase, I recommend always verifying the part using the ESN (Engine Serial Number) and, when available, the CPL in the Cummins catalog. Alternatively, you can verify it using the valve cover number, casting/stamped number, exact engine model, machine serial number/VIN, OEM parts catalog, or by comparing dimensions with the original gasket.

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Cummins
Valve Cover Gasket Cummins Engine ISL – Engine QSL

Rocker Cover Gasket Cummins Engine ISL – Engine QSL

The gasket is installed between the valve cover (rocker/valve cover) and the cylinder head. Its function is to seal the top of the cylinder head, preventing oil leaks and the entry of contaminants into the valve train area.

Used on Cummins 6C/L Series, ISC 8.3, QSC 8.3, ISL 8.9, and QSL 8.9/9 engines.

It should not be purchased based solely on the engine model. In particular, for ISL/QSL applications, you must verify the type of valve cover; one source specifies that it is intended for use with 8-bolt valve covers. For definitive confirmation, I recommend verifying at least one of the following: ESN (Engine Serial Number), CPL, the Cummins QuickServe catalog, the valve cover number, the number of bolts, the VIN/vehicle serial number, the parts manual, and a dimensional comparison with the original gasket.

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Cummins
Water Cooler Exhaust Manifold Cummins Engine QSL – Engine ISL

Water Cooler Exhaust Manifold Cummins Engine ISC8.3-QSC8.3-QSL.9 & ISL.9

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$1,857.14 Add to cart
ISC
Thermostat 180 °F, Water Pump Cummins Engine

Thermostat 180 °F, Water Pump Cummins Engine

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3928640 Thermostat Cummins Engine ISL QSL

Thermostat Cummins Engine ISL – Engine QSL

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.

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$32.71 Add to cart

Cummins
Water Pump Cummins Engine ISL – Engine QSL

Fresh Water Pump Cummins Engine ISL 8.9 – Engine QSL 8.9 / 9

Intended for the cooling system. Its function is to circulate coolant through the engine block, cylinder head, and cooling system, transferring heat to the radiator and maintaining the engine at the correct operating temperature. The visible configuration includes a triangular flange with three mounting points, a cylindrical housing, a metal impeller, and an O-ring seal. The exploded view available for the kit shows the pump, O-ring, and mounting hardware.

Engine Compatibility: Cummins 6C, 6CT, 6CTA, C8.3, ISC 8.3, QSC 8.3, ISL 8.9, ISL9, QSL/QSL9

Before installation, I recommend checking the Cummins ESN and CPL. The fact that the same ISC/ISL/QSL rated engine is used does not guarantee that all configurations use the same pump.

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$143.71 Add to cart

Thread	O.D	Length	I. Gskt	O. Ring
M16 x 1.5	3 1/32 (77.0)	4 27/32 (123.0)	G449-B	Included

Expansion Plug Cummins Engine ISL – Engine QSL

Camshaft Bore Plug Cummins Engine ISL – Engine QSL

Pump Tappet Cummins Engine ISL – Engine QSL

Fuel Pump Tappet Roller Assembly Cummins Engine ISL – Engine QSL

Rear Cam Bore Seal Cummins Engine ISL – Engine QSL

Camshaft Bore O-Ring Cummins Engine ISL – Engine QSL

Rocker Arm Assembly Cummins Engine ISL – Engine QSL

Rocker Lever Assembly Cummins Engine ISL – Engine QSL

Rod Push Cummins Engine ISL – Engine QSL

Intake & Exhaust Valve Pushrod Cummins Engine ISL – Engine QSL

Tappet Guide Cummins Engine ISL – Engine QSL

Tappet Guide Pin Cummins Engine ISL – Engine QSL

Piston Kit Cummins Engine QSL 8.9 / 9

Piston Kit Cummins Engine QSL 8.9 L / QSL 9

Cylinder Liner Sealing Ring Cummins Engine QSL

Seal, Rectangular Ring – Cylinder Liner Cummins Engine QSL 8.9 / QSL 9

Secondary Fuel Spin-on Cummins Engine QSL

Valve Spring Cummins Engine ISL – Engine QSL

Spring – Valve Cummins Engine ISL 8.9 – Engine QSL 8.9 / QSL 9

Starter Cummins Engine QSL

Starter Cummins Engine QSL

Valve Tappet Lifter Cummins Engine ISL – Engine QSL

Valve Tappet Cummins Engine ISL – Engine QSL

Turbocharger Cartridge Cummins Engine QSL

Turbocharger Cummins Engine QSL

New Cylinder Head Cummins Engine QSC – Engine QSL

Cylinder Head Cummins Engine QSC 8.3 – Engine QSL 8.9 / QSL 9

Turbocharger Cummins Engine QSL

Turbocharger Gasket Cummins Engine

Turbocharger Gasket Cummins Engine L10 – Engine QSL

Turbocharger Mounting Gasket Cummins Engine ISL-Cummins Engine QSL

Valve Cover Gasket Cummins Engine ISL – Engine QSL

Rocker Cover Gasket Cummins Engine ISL 8.9 / ISL 9 – Engine QSL 8.9 / QSL 9

Valve Cover Gasket Cummins Engine ISL – Engine QSL

Rocker Cover Gasket Cummins Engine ISL – Engine QSL

Water Cooler Exhaust Manifold Cummins Engine QSL – Engine ISL

Water Cooler Exhaust Manifold Cummins Engine ISC8.3-QSC8.3-QSL.9 & ISL.9

Thermostat 180 °F, Water Pump Cummins Engine

Thermostat 180 °F, Water Pump Cummins Engine

Thermostat Cummins Engine ISL – Engine QSL

Water Pump Cummins Engine ISL – Engine QSL

Fresh Water Pump Cummins Engine ISL 8.9 – Engine QSL 8.9 / 9