2035 Views Updated 28 September 2026

4936226 Cylinder Head for Cummins QSM11

25 03 10

Summary

This high-strength compressor cylinder head is engineered for Cummins QSM11 engines. It serves as a vital component within the air brake compressor system, ensuring reliable pressure maintenance for heavy commercial vehicle applications. Designed to withstand high-temperature and high-pressure 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 in the air brake compressor assembly, managing the compression chamber where air pressure is generated. Built from heavy-duty grade materials, it is designed to maintain structural integrity under extreme thermal and mechanical stress within the engine's pneumatic system.

Engine compatibility and fitment

This specific part is compatible with Cummins engines, including the QSM11, ISM, ISB6.7, ISC8.3, QSB6.7, N14, ISL, QSC8.3, QSL9, and M11 series. It is specifically designed to meet the requirements of these heavy commercial vehicle engine architectures.

Installation and maintenance

For workshop technicians performing maintenance, this component should be inspected alongside the valve plate and gaskets to ensure a complete seal. Proper installation ensures that the air brake system maintains consistent pressure delivery during operation.

System performance

Consult your authorized distributor.

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?

The cylinder head forms the top of the compression chamber in an air brake compressor, allowing for efficient air compression and pressure regulation.

Which engines is this part compatible with?

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

What should I check during installation?

Technicians should ensure all sealing surfaces are clean and check that the valve plate and gaskets are in optimal condition to prevent pressure leaks.

How can I identify if a replacement is needed?

Symptoms such as a drop in air pressure delivery or visible leaks around the compressor housing may indicate that the cylinder head requires inspection or replacement.

What are the OE reference numbers of this part?

25 03 10 directly replaces Cummins OE number 4936226.