2655 Views Updated 30 September 2026

403 200 32 01 Mercedes-Benz OM 402 Water Pump

525.01.0037

Summary

This heavy-duty water pump is designed for Mercedes-Benz NG vehicles equipped with OM 402 engines. It ensures precise coolant circulation to maintain optimal engine operating temperatures under high-load conditions. Engineered for durability in heavy commercial vehicle cooling systems. Equivalent to OE Mercedes-Benz 4032003201.

Product identifiers
EAN Code	8699031085128

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Compatible OEM Codes

MERCEDES BENZ
- 403 200 70 01
- 403 200 49 01
- 403 200 35 01
- 403 200 34 01
- 403 200 32 01
- 403 200 27 01

Description

What does a water pump do?

This water pump serves as a vital component within the engine cooling system, ensuring the continuous circulation of coolant between the engine block and the radiator. By maintaining constant flow, it prevents overheating and helps the engine maintain its ideal operating temperature during long-haul transport or heavy-duty tasks.

Vehicle and engine compatibility

This specific unit is compatible with various Mercedes-Benz NG models, including the 1424, 1624, 2226, and several other series equipped with the OM 402 engine. It is designed to withstand the high temperatures and vibrations typical of heavy commercial vehicle operation.

Installation and maintenance guidance

For professional installation, technicians should ensure all mounting surfaces are clean and inspect the drive belt or timing belt during replacement. Regular inspection of the weep hole and bearing play can help identify potential failures before they lead to serious engine damage.

Reliability in heavy-duty applications

VADEN ORIGINAL components are manufactured to meet rigorous standards, providing reliable performance for fleet managers and workshop technicians seeking high-strength components for their heavy-duty engines.

OE cross-reference

525.01.0037 (Water Pump Water Pumps) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number 4032003201.

Other OEMs

MERCEDES BENZ

A4032007001
A4032004901
A4032003501
A4032003401
A4032003201
A4032002701
4032007001
4032004901
4032003501
4032003401
4032003201
4032002701
403.200.7001
403.200.70.01
403.200.4901
403.200.49.01
403.200.3501
403.200.35.01
403.200.3401
403.200.34.01
403.200.3201
403.200.32.01
403.200.2701
403.200.27.01
403 200 7001
403 200 4901
403 200 3501
403 200 3401
403 200 3201
403 200 2701
403 200 70 01
403 200 49 01
403 200 35 01
403 200 34 01
403 200 32 01
403 200 27 01

Compatible Vehicles

Compatible Vehicles
Brand	Model	Model Type	Engine
MERCEDES BENZ	NG	1424	OM 402
MERCEDES BENZ	NG	1424 F	OM 402
MERCEDES BENZ	NG	1424 K	OM 402
MERCEDES BENZ	NG	1424 L	OM 402
MERCEDES BENZ	NG	1424 LS	OM 402
MERCEDES BENZ	NG	1424 S	OM 402
MERCEDES BENZ	NG	1624	OM 402
MERCEDES BENZ	NG	1624 K	OM 402
MERCEDES BENZ	NG	1624 L	OM 402
MERCEDES BENZ	NG	1624 LS	OM 402
MERCEDES BENZ	NG	1624 S	OM 402
MERCEDES BENZ	NG	1626	OM 402
MERCEDES BENZ	NG	1626 K	OM 402
MERCEDES BENZ	NG	1626 L	OM 402
MERCEDES BENZ	NG	1626 LS	OM 402
MERCEDES BENZ	NG	1626 S	OM 402
MERCEDES BENZ	NG	1632	OM 403
MERCEDES BENZ	NG	1632 AK	OM 403
MERCEDES BENZ	NG	1632 AS	OM 403
MERCEDES BENZ	NG	1632 K	OM 403
MERCEDES BENZ	NG	1632 L	OM 403
MERCEDES BENZ	NG	1632 LS	OM 403
MERCEDES BENZ	NG	1632 S	OM 403
MERCEDES BENZ	NG	1926	OM 402
MERCEDES BENZ	NG	1926 K	OM 402
MERCEDES BENZ	NG	1926 LS	OM 402
MERCEDES BENZ	NG	1926 S	OM 402
MERCEDES BENZ	NG	1932	OM 403
MERCEDES BENZ	NG	1932 A	OM 403
MERCEDES BENZ	NG	1932 AK	OM 403
MERCEDES BENZ	NG	1932 AS	OM 403
MERCEDES BENZ	NG	1932 K	OM 403
MERCEDES BENZ	NG	1932 LS	OM 403
MERCEDES BENZ	NG	1932 S	OM 403
MERCEDES BENZ	NG	2026 S	OM 402
MERCEDES BENZ	NG	2032 S	OM 403
MERCEDES BENZ	NG	2224	OM 402
MERCEDES BENZ	NG	2224 B	OM 402
MERCEDES BENZ	NG	2224 K	OM 402
MERCEDES BENZ	NG	2224 S	OM 402
MERCEDES BENZ	NG	2226	OM 402
MERCEDES BENZ	NG	2226 L	OM 402
MERCEDES BENZ	NG	2226 LS	OM 402
MERCEDES BENZ	NG	2226 S	OM 402
MERCEDES BENZ	NG	2232	OM 403
MERCEDES BENZ	NG	2232 L	OM 403
MERCEDES BENZ	NG	2232 LS	OM 403
MERCEDES BENZ	NG	2232 S	OM 403
MERCEDES BENZ	NG	2626	OM 402
MERCEDES BENZ	NG	2626 AB	OM 402
MERCEDES BENZ	NG	2626 B	OM 402
MERCEDES BENZ	NG	2626 K	OM 402
MERCEDES BENZ	NG	2626 S	OM 402
MERCEDES BENZ	NG	2632	OM 403
MERCEDES BENZ	NG	2632 A	OM 403
MERCEDES BENZ	NG	2632 AK	OM 403
MERCEDES BENZ	NG	2632 AS	OM 403
MERCEDES BENZ	NG	2632 K	OM 403
MERCEDES BENZ	NG	2632 S	OM 403
MERCEDES BENZ	NG	3332	OM 403
MERCEDES BENZ	SK	1838	OM 402 LA
MERCEDES BENZ	SK	1838	OM 442 LA
MERCEDES BENZ	SK	1838 AK	OM 402 LA
MERCEDES BENZ	SK	1838 AK	OM 442 LA
MERCEDES BENZ	SK	1838 L	OM 402 LA
MERCEDES BENZ	SK	1838 L	OM 442 LA
MERCEDES BENZ	SK	1844	OM 442 LA
MERCEDES BENZ	SK	1844 AK	OM 442 LA
MERCEDES BENZ	SK	1844 L	OM 442 LA
MERCEDES BENZ	SK	1850	OM 442 LA
MERCEDES BENZ	SK	1850 AK	OM 442 LA
MERCEDES BENZ	SK	1850 L	OM 442 LA
MERCEDES BENZ	SK	1853	OM 442 LA
MERCEDES BENZ	SK	1853 AK	OM 442 LA
MERCEDES BENZ	SK	1853 L	OM 442 LA
MERCEDES BENZ	SK	2038	OM 402 LA
MERCEDES BENZ	SK	2038	OM 442 LA
MERCEDES BENZ	SK	2038 AK	OM 402 LA
MERCEDES BENZ	SK	2038 AK	OM 442 LA
MERCEDES BENZ	SK	2044	OM 442 LA
MERCEDES BENZ	SK	2044 AK	OM 442 LA
MERCEDES BENZ	SK	2544	OM 442 LA

FAQ

What is the function of this water pump?

The water pump circulates coolant throughout the engine block and radiator to regulate operating temperatures and prevent engine overheating.

Which Mercedes-Benz engines is this compatible with?

This part is specifically designed for Mercedes-Benz NG series vehicles utilizing the OM 402 engine.

What are common signs of a failing water pump?

Look for coolant leaks from the weep hole, unusual bearing noise, or signs of engine overheating during operation.

Should I replace other parts during installation?

It is recommended to inspect or renew the drive belt or timing belt at the same time as the water pump service.

What are the OE reference numbers of this part?

525.01.0037 directly replaces Mercedes-Benz OE number 4032003201.