2034 Views Updated 26 September 2026

4936226 Cylinder Head for Cummins ISL Engines

25 03 10

Summary

This cylinder head is designed for heavy-duty air brake compressors used in Cummins ISL engines. It features high-strength components to ensure reliable air compression and system integrity under heavy commercial vehicle operating conditions. Equivalent to OE Cummins 4936226.

Product identifiers
EAN Code	8699031023885

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Compatible OEM Codes

WABCO
- 911 153 920 2
CUMMINS
- 4936226

Description

What does a compressor cylinder head do?

This compressor cylinder head serves as a critical component within the air brake compressor assembly, managing the combustion or compression chamber where air pressure is generated. It is engineered to withstand high thermal and mechanical stresses, ensuring consistent pressure delivery for the vehicle braking system.

Engine compatibility and fitment

This component is specifically compatible with Cummins engines, including the ISL, ISM, QSM11, ISB6.7, ISC8.3, QSB6.7, N14, QSC8.3, QSL9, and M11 series. It is essential for maintaining the correct volumetric efficiency within the compressor assembly.

Installation and maintenance guidance

When replacing the cylinder head, technicians should inspect the surrounding mounting surfaces and valve seating to ensure a proper seal. Proper torque application during installation is vital to prevent pressure leaks in the pneumatic circuit.

System reliability and troubleshooting

Maintaining the integrity of the cylinder head helps prevent sudden drops in air pressure and ensures the reliability of the braking system for heavy commercial vehicles.

OE cross-reference

25 03 10 (Compressor Cylinder Head) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 4936226.

Other OEMs

CUMMINS

4936226

WABCO

9111539202
911.153.920.2
911 153 920 2

Related Products

Used In

Compatible Vehicles

Compatible Vehicles
Brand	Model	Engine
BLUE BIRD	All American	ISC
BLUE BIRD	All American	ISL9
BLUE BIRD	Vision	ISB
BLUE BIRD	Vision	ISC
BLUE BIRD	Vision	ISL9
CUMMINS
CUMMINS		ISB6.7
CUMMINS		ISC8.3
CUMMINS		ISL
CUMMINS		ISM
CUMMINS		M11
CUMMINS		N14
CUMMINS		QSB6.7
CUMMINS		QSC8.3
CUMMINS		QSL9
CUMMINS		QSM11
DONGFENG	Kinland	ISC
DONGFENG	Tianjin	ISC
FORD	AT9513	N14
FORD	Cargo	ISB
FORD	CF700	ISB
FORD	F700	ISB
FORD	L8000	N14
FORD	L9000	N14
FORD	LT9000	N14
FORD	LTL9000	N14
FORD	LTLA9000	N14
FREIGHTLINER	108SD	ISL9
FREIGHTLINER	114SD	ISL9
FREIGHTLINER	Argosy	N14
FREIGHTLINER	Century Class	ISM
FREIGHTLINER	Century Class	N14
FREIGHTLINER	Classic	N14
FREIGHTLINER	FL50	ISB
FREIGHTLINER	FL60	ISB
FREIGHTLINER	FL60	ISC
FREIGHTLINER	FL60	ISM
FREIGHTLINER	FL70	ISC
FREIGHTLINER	FL70	ISM
FREIGHTLINER	FL80	ISC
FREIGHTLINER	FL80	ISM
FREIGHTLINER	FLC112	ISM
FREIGHTLINER	FLD112	ISM
FREIGHTLINER	FLD120	ISM
FREIGHTLINER	FLD120	N14
FREIGHTLINER	FS-65	ISB
FREIGHTLINER	FS-65	ISC
FREIGHTLINER	M2 106	ISB
FREIGHTLINER	M2 106	ISC
FREIGHTLINER	M2 106	ISL9
FREIGHTLINER	M2 112	ISC
FREIGHTLINER	M2 112	ISL9
FREIGHTLINER	MT45	ISB
FREIGHTLINER	MT55	ISB
GILLIG	Low Floor	ISC
GILLIG	Low Floor	ISL9
GILLIG	Low Floor	ISM
GILLIG	Phantom	ISC
GILLIG	Phantom	ISM
IC BUS	CE Series	ISB
IC BUS	CE Series	ISC
IC BUS	CE Series	ISL9
IC BUS	RE Series	ISC
IC BUS	RE Series	ISL9
INTERNATIONAL	4300	ISC
INTERNATIONAL	4400	ISC
INTERNATIONAL	4900	ISM
INTERNATIONAL	7400	ISC
INTERNATIONAL	9400i	N14
INTERNATIONAL	9900i	ISM
INTERNATIONAL	9900i	N14
INTERNATIONAL	Transtar	N14
KENWORTH	C500	N14
KENWORTH	K100E	N14
KENWORTH	T170	ISB
KENWORTH	T2000	ISM
KENWORTH	T270	ISB
KENWORTH	T300	ISC
KENWORTH	T300	N14
KENWORTH	T370	ISB
KENWORTH	T370	ISC
KENWORTH	T370	ISL9
KENWORTH	T440	ISC
KENWORTH	T440	ISL9
KENWORTH	T470	ISC
KENWORTH	T470	ISL9
KENWORTH	T600A	ISM
KENWORTH	T600A	N14
KENWORTH	T800	ISM
KENWORTH	T800	N14
KENWORTH	T880	ISL9
KENWORTH	W900	ISM
KENWORTH	W900	N14
NABI	40-LFW	ISM
NEW FLYER	D40LF	ISC
NEW FLYER	D40LF	ISL9
NEW FLYER	D40LF	ISM
NEW FLYER	D60LF	ISM
NEW FLYER	Xcelsior XD40	ISL9
NEW FLYER	Xcelsior XD60	ISL9
NOVA BUS	LFS	ISL9
ORION BUS	Orion V	ISM
ORION BUS	Orion VII	ISL9
ORION BUS	Orion VII	ISM
PETERBILT	325	ISB
PETERBILT	330	ISB
PETERBILT	330	ISC
PETERBILT	335	ISB
PETERBILT	335	ISC
PETERBILT	337	ISC
PETERBILT	337	ISL9
PETERBILT	348	ISC
PETERBILT	348	ISL9
PETERBILT	357	ISM
PETERBILT	357	N14
PETERBILT	377	ISM
PETERBILT	377	N14
PETERBILT	378	ISM
PETERBILT	378	N14
PETERBILT	379	ISM
PETERBILT	379	N14
PETERBILT	520	ISL9
PETERBILT	535	ISL9
PETERBILT	536	ISL9
PETERBILT	537	ISL9
PETERBILT	548	ISL9
RAM (DODGE)	2500	ISB
RAM (DODGE)	3500	ISB
RAM (DODGE)	4500	ISB
RAM (DODGE)	5500	ISB
STERLING	A9500	ISM
STERLING	A9500	N14
STERLING	L7500	ISM
STERLING	L7500	N14
STERLING	LT9500	ISM
STERLING	LT9500	N14
THOMAS BUILT BUSES	Saf-T-Liner C2	ISB
THOMAS BUILT BUSES	Saf-T-Liner C2	ISC
THOMAS BUILT BUSES	Saf-T-Liner C2	ISL9
THOMAS BUILT BUSES	Saf-T-Liner HDX	ISC
THOMAS BUILT BUSES	Saf-T-Liner HDX	ISL9
VOLKSWAGEN	Constellation	ISB
VOLKSWAGEN	Delivery	ISB
VOLVO	ACL	N14
VOLVO	WG	N14
WABCO
WESTERN STAR	4700	ISL9
WESTERN STAR	4900	ISM
WESTERN STAR	4900	N14
WESTERN STAR	4964	ISM
WESTERN STAR	4964	N14

FAQ

What is the function of this cylinder head?

It forms the top of the compression chamber in an air brake compressor, providing a secure seal to maintain necessary air pressure for braking systems.

Which Cummins engines are compatible with this part?

This part is compatible with several Cummins engine series including ISL, ISM, QSM11, ISB6.7, ISC8.3, QSB6.7, N14, QSC8.3, QSL9, and M11.

How can I know if my compressor needs a new cylinder head?

Technicians may notice symptoms such as air pressure leaks or inconsistent pressure buildup within the pneumatic circuit during system testing.

What should be checked during installation?

Ensure all mounting surfaces are clean and check that all gaskets are properly seated to prevent any loss of compression under heavy load.

What are the OE reference numbers of this part?

25 03 10 directly replaces Cummins OE number 4936226.