2448 Views Updated 27 September 2026

A3662005901 Water Pump for Mercedes-Benz Engines

525.01.0008

Summary

This heavy-duty water pump is designed for Mercedes-Benz LK/LN2 series engines, specifically compatible with OM 366 and OM 366 LA engine models. It ensures stable coolant circulation to maintain optimal engine operating temperatures under heavy loads. Equivalent to OE Mercedes-Benz A3662005901.

Product identifiers
EAN Code	8699031076621

Ready to Order

Get Information

Compatible OEM Codes

MERCEDES BENZ
- 376 200 07 01
- 366 200 59 01
- 366 200 09 01
- 366 200 07 01
- 366 200 04 01

Description

What does a water pump do?

The water pump serves as a critical centrifugal component within the cooling system, continuously circulating coolant between the engine block, cylinder head, and radiator. For heavy commercial vehicles, maintaining this circulation is vital to prevent overheating and ensure engine longevity during long-haul operations.

Compatible Mercedes-Benz vehicles and engines

This specific unit is engineered for Mercedes-Benz LK/LN2 series trucks, including models such as the 1114, 1324, 1517, and various 917 configurations. It is specifically compatible with the OM 366 and OM 366 LA engine series to ensure precise fitment and performance.

Installation and maintenance guidance

When replacing the pump, technicians should verify the engine code and inspect the drive belt or gear engagement to prevent premature wear. Ensuring a clean mounting surface and proper gasket seating is essential for preventing leaks and maintaining system pressure.

Selection guidance

Check the compatibility list to ensure this component matches your specific vehicle requirements.

OE cross-reference

525.01.0008 (Water Pump Water Pumps) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A3662005901.

Other OEMs

MERCEDES BENZ

A3762000701
A3662005901
A3662000901
A3662000701
A3662000401
3762000701
376.200.0701
376.200.07.01
376 200 0701
3662005901
3662000901
3662000701
3662000401
366.200.5901
366.200.59.01
366.200.0901
366.200.09.01
366.200.0701
366.200.07.01
366.200.0401
366.200.04.01
366 200 5901
366 200 0901
366 200 0701
366 200 0401
376 200 07 01
366 200 59 01
366 200 09 01
366 200 07 01
366 200 04 01

Compatible Vehicles

Compatible Vehicles
Brand	Model	Model Type	Engine
MERCEDES BENZ	LK/LN2	1114	OM 366
MERCEDES BENZ	LK/LN2	1114 A	OM 366
MERCEDES BENZ	LK/LN2	1114 AK	OM 366
MERCEDES BENZ	LK/LN2	1114 K	OM 366
MERCEDES BENZ	LK/LN2	1114 L	OM 366
MERCEDES BENZ	LK/LN2	1114 S	OM 366
MERCEDES BENZ	LK/LN2	1117	OM 366 A
MERCEDES BENZ	LK/LN2	1117	OM 366 LA
MERCEDES BENZ	LK/LN2	1117 A	OM 366 A
MERCEDES BENZ	LK/LN2	1117 A	OM 366 LA
MERCEDES BENZ	LK/LN2	1117 AK	OM 366 LA
MERCEDES BENZ	LK/LN2	1117 K	OM 366 A
MERCEDES BENZ	LK/LN2	1117 K	OM 366 LA
MERCEDES BENZ	LK/LN2	1117 L	OM 366 A
MERCEDES BENZ	LK/LN2	1117 L	OM 366 LA
MERCEDES BENZ	LK/LN2	1117 LO	OM 366 A
MERCEDES BENZ	LK/LN2	1117 LO	OM 366 LA
MERCEDES BENZ	LK/LN2	1117 LS	OM 366 A
MERCEDES BENZ	LK/LN2	1117 LS	OM 366 LA
MERCEDES BENZ	LK/LN2	1117 O	OM 366 A
MERCEDES BENZ	LK/LN2	1117 O	OM 366 LA
MERCEDES BENZ	LK/LN2	1117 S	OM 366 A
MERCEDES BENZ	LK/LN2	1117 S	OM 366 LA
MERCEDES BENZ	LK/LN2	1120	OM 366 LA
MERCEDES BENZ	LK/LN2	1120 AF	OM 366 LA
MERCEDES BENZ	LK/LN2	1120 F	OM 366 LA
MERCEDES BENZ	LK/LN2	1120 L	OM 366 LA
MERCEDES BENZ	LK/LN2	1120 LO	OM 366 LA
MERCEDES BENZ	LK/LN2	1120 LS	OM 366 LA
MERCEDES BENZ	LK/LN2	1120 O	OM 366 LA
MERCEDES BENZ	LK/LN2	1120 S	OM 366 LA
MERCEDES BENZ	LK/LN2	1124 AF	OM 366 LA
MERCEDES BENZ	LK/LN2	1124 F	OM 366 LA
MERCEDES BENZ	LK/LN2	1314	OM 366
MERCEDES BENZ	LK/LN2	1314 AK	OM 366
MERCEDES BENZ	LK/LN2	1314 K	OM 366
MERCEDES BENZ	LK/LN2	1317	OM 366 A
MERCEDES BENZ	LK/LN2	1317	OM 366 LA
MERCEDES BENZ	LK/LN2	1317 K	OM 366 A
MERCEDES BENZ	LK/LN2	1317 K	OM 366 LA
MERCEDES BENZ	LK/LN2	1317 L	OM 366 A
MERCEDES BENZ	LK/LN2	1317 L	OM 366 LA
MERCEDES BENZ	LK/LN2	1317 LS	OM 366 A
MERCEDES BENZ	LK/LN2	1317 LS	OM 366 LA
MERCEDES BENZ	LK/LN2	1317 S	OM 366 A
MERCEDES BENZ	LK/LN2	1317 S	OM 366 LA
MERCEDES BENZ	LK/LN2	1320	OM 366 LA
MERCEDES BENZ	LK/LN2	1320 AK	OM 366 LA
MERCEDES BENZ	LK/LN2	1320 L	OM 366 LA
MERCEDES BENZ	LK/LN2	1320 LS	OM 366 LA
MERCEDES BENZ	LK/LN2	1320 S	OM 366 LA
MERCEDES BENZ	LK/LN2	1324	OM 366 LA
MERCEDES BENZ	LK/LN2	1324 L	OM 366 LA
MERCEDES BENZ	LK/LN2	1324 LS	OM 366 LA
MERCEDES BENZ	LK/LN2	1324 S	OM 366 LA
MERCEDES BENZ	LK/LN2	1517	OM 366 A
MERCEDES BENZ	LK/LN2	1517	OM 366 LA
MERCEDES BENZ	LK/LN2	1517 L	OM 366 A
MERCEDES BENZ	LK/LN2	1517 L	OM 366 LA
MERCEDES BENZ	LK/LN2	1520	OM 366 LA
MERCEDES BENZ	LK/LN2	1520 L	OM 366 LA
MERCEDES BENZ	LK/LN2	1824 L	OM 366 LA
MERCEDES BENZ	LK/LN2	2020 L	OM 366 LA
MERCEDES BENZ	LK/LN2	814	OM 366
MERCEDES BENZ	LK/LN2	814 F	OM 366
MERCEDES BENZ	LK/LN2	814 K	OM 366
MERCEDES BENZ	LK/LN2	814 KO	OM 366
MERCEDES BENZ	LK/LN2	814 LO	OM 366
MERCEDES BENZ	LK/LN2	814 O	OM 366
MERCEDES BENZ	LK/LN2	814 S	OM 366
MERCEDES BENZ	LK/LN2	814L	OM 366
MERCEDES BENZ	LK/LN2	817	OM 366 A
MERCEDES BENZ	LK/LN2	817	OM 366 LA
MERCEDES BENZ	LK/LN2	817 F	OM 366 A
MERCEDES BENZ	LK/LN2	817 F	OM 366 LA
MERCEDES BENZ	LK/LN2	817 K	OM 366 A
MERCEDES BENZ	LK/LN2	817 K	OM 366 LA
MERCEDES BENZ	LK/LN2	817 L	OM 366 A
MERCEDES BENZ	LK/LN2	817 L	OM 366 LA
MERCEDES BENZ	LK/LN2	817 LO	OM 366 A
MERCEDES BENZ	LK/LN2	817 LO	OM 366 LA
MERCEDES BENZ	LK/LN2	817 LS	OM 366 A
MERCEDES BENZ	LK/LN2	817 LS	OM 366 LA
MERCEDES BENZ	LK/LN2	817 O	OM 366 A
MERCEDES BENZ	LK/LN2	817 O	OM 366 LA
MERCEDES BENZ	LK/LN2	817 S	OM 366 A
MERCEDES BENZ	LK/LN2	817 S	OM 366 LA
MERCEDES BENZ	LK/LN2	914	OM 366
MERCEDES BENZ	LK/LN2	914 AK	OM 366
MERCEDES BENZ	LK/LN2	914 K	OM 366
MERCEDES BENZ	LK/LN2	914 KO	OM 366
MERCEDES BENZ	LK/LN2	917	OM 366 LA
MERCEDES BENZ	LK/LN2	917 AF	OM 366 A
MERCEDES BENZ	LK/LN2	917 AF	OM 366 LA
MERCEDES BENZ	LK/LN2	917 AK	OM 366 LA
MERCEDES BENZ	LK/LN2	917 K	OM 366 LA
MERCEDES BENZ	LK/LN2	917 KO	OM 366 LA
MERCEDES BENZ	LK/LN2	917 LAF	OM 366 A
MERCEDES BENZ	LK/LN2	O 1114	OM 366
MERCEDES BENZ	LK/LN2	O 1114 L	OM 366
MERCEDES BENZ	MK	1222 AF	OM 366 LA
MERCEDES BENZ	MK	1224 AF	OM 366 LA
MERCEDES BENZ	MK	1417	OM 366 A
MERCEDES BENZ	MK	1417	OM 366 LA
MERCEDES BENZ	MK	1417 A	OM 366 A
MERCEDES BENZ	MK	1417 A	OM 366 LA
MERCEDES BENZ	MK	1417 AK	OM 366 A
MERCEDES BENZ	MK	1417 AK	OM 366 LA
MERCEDES BENZ	MK	1417 K	OM 366 A
MERCEDES BENZ	MK	1420	OM 366 LA
MERCEDES BENZ	MK	1420 L	OM 366 LA
MERCEDES BENZ	MK	1420 LS	OM 366 LA
MERCEDES BENZ	MK	1717	OM 366 A
MERCEDES BENZ	MK	1717 AK	OM 366 A
MERCEDES BENZ	MK	1717 K	OM 366 A
MERCEDES BENZ	MK	1717 L	OM 366 A
MERCEDES BENZ	MK	1720	OM 366 LA
MERCEDES BENZ	MK	1720 L	OM 366 LA
MERCEDES BENZ	MK	1720 S	OM 366 LA
MERCEDES BENZ	MK	1820	OM 366 LA
MERCEDES BENZ	MK	1820 L	OM 366 LA
MERCEDES BENZ	MK	2320 L	OM 366 LA
MERCEDES BENZ	MK	2420	OM 366 LA
MERCEDES BENZ	MK	2420 L	OM 366 LA

FAQ

What is the function of this water pump?

The water pump circulates coolant throughout the engine system to regulate temperature and prevent overheating during operation.

Which engines is this pump compatible with?

This unit is designed for Mercedes-Benz OM 366 and OM 366 LA engines used in various heavy commercial vehicles.

How can I ensure the correct fitment for my truck?

It is recommended to verify the engine code (such as OM 366) and the vehicle chassis number to confirm exact compatibility.

What are common signs of a failing water pump?

Symptoms often include coolant leaks around the housing, unusual noises from the belt drive, or rising engine operating temperatures.

What are the OE reference numbers of this part?

525.01.0008 directly replaces Mercedes-Benz OE number A3662005901.