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457 200 27 01 Mercedes-Benz Citaro OM 457 HLA Water Pump

525.01.0021

Summary

This water pump is designed for Mercedes-Benz Citaro (O 530) vehicles equipped with OM 457 HLA engines. It serves as a critical component within the engine cooling system to ensure stable thermal management during heavy-duty operation. Equivalent to OE Mercedes-Benz 4572002701.

Product identifiers
EAN Code	8699031076768

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Compatible OEM Codes

MERCEDES BENZ
- 475 200 70 01
- 457 200 27 01
- 457 200 25 01
- 457 200 11 01
- 457 200 05 01
- 457 200 02 01

Description

What does a water pump do?

The water pump acts as a centrifugal-type pump within the engine cooling system, continuously circulating coolant between the engine block, cylinder head, and radiator. This process is vital for maintaining the engine's thermal balance and preventing overheating during prolonged operation in heavy commercial vehicles.

Compatible vehicles and engines

This specific component is designed for Mercedes-Benz Citaro (O 530) models, including various variants such as the Citaro G, GN3, LÜ, N, and MUE. It is specifically engineered to work with OM 457 HLA engines, ensuring precise fitment and optimal flow rates required for these high-performance bus engines.

Installation and maintenance

For professional installation, technicians should inspect the drive belt and ensure all mounting surfaces are clean to prevent leaks. Replacing the water pump alongside the timing or alternator belt service is recommended to avoid unexpected downtime. Always verify the engine code and chassis number to ensure exact compatibility with the existing cooling circuit.

Troubleshooting guidance

Maintaining a consistent coolant flow is essential for preventing engine overheating and component wear. If you notice coolant leaking from the weep hole or hear unusual bearing noise, immediate inspection is required to protect the engine from thermal stress.

OE cross-reference

525.01.0021 (Water Pump Water Pumps) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number 4572002701.

Other OEMs

MERCEDES BENZ

A4752007001
A4572002701
A4572002501
A4572001101
A4572000501
A4572000201
4752007001
475.200.7001
475.200.70.01
475 200 7001
4572002701
4572002501
4572001101
4572000501
4572000201
457.200.2701
457.200.27.01
457.200.2501
457.200.25.01
457.200.1101
457.200.11.01
457.200.0501
457.200.05.01
457.200.0201
457.200.02.01
457 200 2701
457 200 2501
457 200 1101
457 200 0501
457 200 0201
475 200 70 01
457 200 27 01
457 200 25 01
457 200 11 01
457 200 05 01
457 200 02 01

Compatible Vehicles

Compatible Vehicles
Brand	Model	Model Type	Engine
MERCEDES BENZ	AXOR	1835 LS	OM 457 LA
MERCEDES BENZ	AXOR	1840 LS	OM 457 LA
MERCEDES BENZ	AXOR	1843 LS	OM 457 LA
MERCEDES BENZ	AXOR	2535 LS	OM 457 LA
MERCEDES BENZ	AXOR	2540 LS	OM 457 LA
MERCEDES BENZ	AXOR	2543 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	1835 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	1836 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	1840 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	1843 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2435 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2436 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2440 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2443 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2535 L	OM 457 LA
MERCEDES BENZ	AXOR 2	2535 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2536 L	OM 457 LA
MERCEDES BENZ	AXOR 2	2536 LL	OM 457 LA
MERCEDES BENZ	AXOR 2	2536 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2540 L	OM 457 LA
MERCEDES BENZ	AXOR 2	2540 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2543 L	OM 457 LA
MERCEDES BENZ	AXOR 2	2543 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2543 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2635 B	OM 457 LA
MERCEDES BENZ	AXOR 2	2635 K	OM 457 LA
MERCEDES BENZ	AXOR 2	2636 B	OM 457 LA
MERCEDES BENZ	AXOR 2	2636 K	OM 457 LA
MERCEDES BENZ	AXOR 2	2640 B	OM 457 LA
MERCEDES BENZ	AXOR 2	2640 K	OM 457 LA
MERCEDES BENZ	AXOR 2	2643 B	OM 457 LA
MERCEDES BENZ	AXOR 2	2643 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3235 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3235 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3236 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3236 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3240	OM 457 LA
MERCEDES BENZ	AXOR 2	3240 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3240 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3243	OM 457 LA
MERCEDES BENZ	AXOR 2	3243 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3243 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3335	OM 457 LA
MERCEDES BENZ	AXOR 2	3335 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3335 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3335 S	OM 457 LA
MERCEDES BENZ	AXOR 2	3336 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3336 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3340	OM 457 LA
MERCEDES BENZ	AXOR 2	3340 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3340 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3340 S	OM 457 LA
MERCEDES BENZ	AXOR 2	3341	OM 457 LA
MERCEDES BENZ	AXOR 2	3341 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3341 S	OM 457 LA
MERCEDES BENZ	AXOR 2	3343	OM 457 LA
MERCEDES BENZ	AXOR 2	3343 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3343 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3343 S	OM 457 LA
MERCEDES BENZ	AXOR 2	4135 B	OM 457 LA
MERCEDES BENZ	AXOR 2	4135 K	OM 457 LA
MERCEDES BENZ	AXOR 2	4136 B	OM 457 LA
MERCEDES BENZ	AXOR 2	4136 K	OM 457 LA
MERCEDES BENZ	AXOR 2	4140 B	OM 457 LA
MERCEDES BENZ	AXOR 2	4140 K	OM 457 LA
MERCEDES BENZ	AXOR 2	4143 B	OM 457 LA
MERCEDES BENZ	AXOR 2	4143 K	OM 457 LA
MERCEDES BENZ	AXOR 2	LL	OM 457 LA
MERCEDES BENZ	AXOR 2	LLS	OM 457 LA
MERCEDES BENZ	CITARO (O 530)	Citaro G	OM 457 HLA
MERCEDES BENZ	CITARO (O 530)	Citaro G	OM 457 LA
MERCEDES BENZ	CITARO (O 530)	Citaro GN3	OM 457 HLA
MERCEDES BENZ	CITARO (O 530)	Citaro GN3	OM 457 LA
MERCEDES BENZ	CITARO (O 530)	Citaro GNG	M 447 hLAG
MERCEDES BENZ	CITARO (O 530)	Citaro LÜ	OM 457 HLA
MERCEDES BENZ	CITARO (O 530)	Citaro LÜ	OM 457 LA
MERCEDES BENZ	CITARO (O 530)	Citaro MUE	OM 457 HLA
MERCEDES BENZ	CITARO (O 530)	Citaro MUE	OM 457 LA
MERCEDES BENZ	CITARO (O 530)	Citaro N	OM 457 hLA
MERCEDES BENZ	CITARO (O 530)	Citaro N	OM 457 LA
MERCEDES BENZ	CITARO (O 530)	Citaro NG	M 447 HLAG
MERCEDES BENZ	CONECTO (O 345)	CONECTO C	OM 457 hLA
MERCEDES BENZ	CONECTO (O 345)	H	OM 457 hLA
MERCEDES BENZ	CONECTO (O 345)	M	OM 457 hLA
MERCEDES BENZ	CONECTO (O 345)	UE	OM 457 hLA
MERCEDES BENZ	MK	1824	M 447 G
MERCEDES BENZ	MK	2524 L	M 447 G
MERCEDES BENZ	SK	2638	OM 402 LA
MERCEDES BENZ	SK	2638 L	OM 402 LA
MERCEDES BENZ	SK	3538	OM 402 LA
MERCEDES BENZ	TOURISMO (O 350)	SHD	OM 457 LA
MERCEDES BENZ	TOURISMO (O 350)	Tourismo 15 RHD	OM 457 HLA
MERCEDES BENZ	TOURISMO (O 350)	Tourismo 15 SHD	OM 457 LA
MERCEDES BENZ	TOURISMO (O 350)	Tourismo 16 RHD	OM 457 HLA
MERCEDES BENZ	TOURISMO (O 350)	Tourismo 16 RHD	OM 457 LA
MERCEDES BENZ	TOURISMO (O 350)	Tourismo 17 RHD	OM 457 LA
MERCEDES BENZ	TOURISMO (O 350)	Tourismo RHD	OM 457 LA
MERCEDES BENZ	TOURO (O 500)	Touro	OM 457 LA
MERCEDES BENZ	TRAVEGO (O 580)	O 580-15 RH	OM 457 hLA
MERCEDES BENZ	TRAVEGO (O 580)	O 580-15 RH/RHD	OM 457 hLA
MERCEDES BENZ	TRAVEGO (O 580)	O 580-15 RH/RHD	OM 457 LA
MERCEDES BENZ	TRAVEGO (O 580)	O 580-15 RHD	OM 457 LA
MERCEDES BENZ	TRAVEGO (O 580)	O 580-16 RHD	OM 457 LA
MERCEDES BENZ	TRAVEGO (O 580)	O 580-17 RHD	OM 457 LA
SETRA	Series 400	ComfortClass S 415 GT	OM 457 HLA
SETRA	Series 400	ComfortClass S 415 GT	OM 457 LA
SETRA	Series 400	ComfortClass S 415 GT-HD	OM 457 hLA
SETRA	Series 400	ComfortClass S 415 GT-HD	OM 457 LA
SETRA	Series 400	ComfortClass S 416 GT	OM 457 HLA
SETRA	Series 400	ComfortClass S 416 GT-HD	OM 457 LA
SETRA	Series 400	ComfortClass S 417 GT-HD	OM 457 HLA
SETRA	Series 400	ComfortClass S 417 GT-HD	OM 457 LA
SETRA	Series 400	MultiClass S 412 UL	OM 457 HLA
SETRA	Series 400	MultiClass S 415 NF	OM 457 HLA
SETRA	Series 400	MultiClass S 415 UL	OM 457 HLA
SETRA	Series 400	MultiClass S 415 UL	OM 457 LA
SETRA	Series 400	MultiClass S 416 NF	OM 457 HLA
SETRA	Series 400	MultiClass S 416 UL	OM 457 HLA
SETRA	Series 400	MultiClass S 417 UL	OM 457 HLA
SETRA	Series 400	MultiClass S 419 UL	OM 457 HLA
SETRA	Series 400	TopClass S 415 HD	OM 457 LA
SETRA	Series 400	TopClass S 415 HDH	OM 457 LA
SETRA	Series 400	TopClass S 416 HDH	OM 457 LA
SETRA	Series 400	TopClass S 417 HDH	OM 457 LA

FAQ

What is the function of this water pump?

The water pump circulates coolant between the engine block, cylinder head, radiator, and heater core to maintain optimal operating temperatures.

Which Mercedes-Benz models is this pump compatible with?

This pump is designed for Mercedes-Benz Citaro (O 530) variants including Citaro G, GN3, LÜ, N, and MUE.

What should I check if the cooling system fails?

Technicians should check for coolant leaks from the weep hole, bearing play, or unusual noises originating from the pump housing.

How can I ensure I am getting the correct part?

It is recommended to verify the engine code (such as OM 457 HLA) and the vehicle's chassis number to ensure exact fitment.

What are the OE reference numbers of this part?

525.01.0021 directly replaces Mercedes-Benz OE number 4572002701.