8066 Views Updated 26 September 2026

403 180 39 38S Mercedes-Benz O 303 Oil Cooler Cover

0101 049

Summary

This oil cooler cover is designed for Mercedes-Benz O 303 trucks, specifically compatible with OM 421 and OM 421 A engines. It features a sensor connection to ensure precise engine thermal management and reliable sealing within the oil cooling system. Equivalent to OE Mercedes-Benz 4031803938S.

Product identifiers
EAN Code	8699031061504

Ready to Order

Get Information

Compatible OEM Codes

MERCEDES BENZ
- 403 180 39 38S

Description

What does an oil cooler cover do?

This oil cooler cover serves as a critical component in the engine cooling system, enclosing the oil radiator housing to maintain a secure seal for the cooling core bundle. By providing the necessary sealing surfaces, it ensures that engine oil and coolant remain in separate, dedicated circuits to prevent cross-contamination.

Compatible vehicles and engines

This specific part is engineered for Mercedes-Benz O 303 vehicles, providing a precise fit for engines including the OM 421 and OM 421 A series. It maintains structural integrity under high thermal loads, ensuring the oil transfer channels remain intact during heavy-duty operation.

Installation and maintenance

When performing maintenance or replacement, technicians should inspect the sensor connection points and sealing surfaces to ensure no leaks occur between the lubrication and cooling circuits. Proper installation is vital to maintaining stable engine temperatures and protecting internal components like bearings and turbochargers.

System reliability

Check the compatibility list to ensure this part meets your specific engine requirements.

OE cross-reference

0101 049 (Oil Cooler Cover) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number 4031803938S.

Technical Specifications

Technical Specifications
Sensor	OK

Other OEMs

MERCEDES BENZ

A4031803938S
A4031803938
4031803938
403.180.3938
403.180.39.38S
403.180.39.38
403 180 3938
403 180 39 38S

Compatible Vehicles

Compatible Vehicles
Brand	Model	Model Type	Engine
MERCEDES BENZ	MK	1226 AF	OM 401 LA
MERCEDES BENZ	MK	1227 A	OM 401 LA
MERCEDES BENZ	MK	1422	OM 401 LA
MERCEDES BENZ	MK	1424	OM 401 LA
MERCEDES BENZ	MK	1424 L	OM 401 LA
MERCEDES BENZ	MK	1424 LS	OM 401 LA
MERCEDES BENZ	MK	1424 S	OM 401 LA
MERCEDES BENZ	MK	1427	OM 401 LA
MERCEDES BENZ	MK	1427 F	OM 401 LA
MERCEDES BENZ	MK	1427 L	OM 401 LA
MERCEDES BENZ	MK	1427 LS	OM 401 LA
MERCEDES BENZ	MK	1427 S	OM 401 LA
MERCEDES BENZ	MK	1431	OM 401 LA
MERCEDES BENZ	MK	1431 F	OM 401 LA
MERCEDES BENZ	MK	1624 S	OM 401 LA
MERCEDES BENZ	MK	1722 K	OM 401 LA
MERCEDES BENZ	MK	1726 LL	OM 401 LA
MERCEDES BENZ	MK	1727 L	OM 401 LA
MERCEDES BENZ	MK	1824	OM 401 LA
MERCEDES BENZ	MK	1824 K	OM 401 LA
MERCEDES BENZ	MK	1827	OM 401 LA
MERCEDES BENZ	MK	1827 AK	OM 401 LA
MERCEDES BENZ	MK	1827 L	OM 401 LA
MERCEDES BENZ	MK	1827 LS	OM 401 LA
MERCEDES BENZ	MK	1827 S	OM 401 LA
MERCEDES BENZ	MK	1831	OM 401 LA
MERCEDES BENZ	MK	1831 K	OM 401 LA
MERCEDES BENZ	MK	1831 K	OM 402 LA
MERCEDES BENZ	MK	1831 L	OM 401 LA
MERCEDES BENZ	MK	1831 LS	OM 401 LA
MERCEDES BENZ	MK	1831 S	OM 401 LA
MERCEDES BENZ	MK	2327 L	OM 401 LA
MERCEDES BENZ	MK	2426 L	OM 401 LA
MERCEDES BENZ	MK	2427 B	OM 401 LA
MERCEDES BENZ	MK	2427 L	OM 401 LA
MERCEDES BENZ	MK	2431	OM 401 LA
MERCEDES BENZ	MK	2433 L	OM 401 LA
MERCEDES BENZ	MK	2524	OM 401 LA
MERCEDES BENZ	MK	2524 K	OM 401 LA
MERCEDES BENZ	MK	2524 L	OM 401 LA
MERCEDES BENZ	MK	2527	OM 401 LA
MERCEDES BENZ	MK	2527 B	OM 401 LA
MERCEDES BENZ	MK	2527 K	OM 401 LA
MERCEDES BENZ	MK	2527 L	OM 401 LA
MERCEDES BENZ	MK	2531	OM 401 LA
MERCEDES BENZ	MK	2531 B	OM 401 LA
MERCEDES BENZ	MK	2531 L	OM 401 LA
MERCEDES BENZ	MK	2534 L	OM 401 LA
MERCEDES BENZ	MK	3231 L	OM 401 LA
MERCEDES BENZ	NG	1019 AF	OM 401
MERCEDES BENZ	NG	1219 A	OM 401
MERCEDES BENZ	NG	1219 AK	OM 401
MERCEDES BENZ	NG	1219 K	OM 401
MERCEDES BENZ	NG	1222	OM 421
MERCEDES BENZ	NG	1222 A	OM 421
MERCEDES BENZ	NG	1222 AF	OM 421
MERCEDES BENZ	NG	1222 F	OM 421
MERCEDES BENZ	NG	1222 S	OM 421
MERCEDES BENZ	NG	1225 AF	OM 422
MERCEDES BENZ	NG	1228 AF	OM 422
MERCEDES BENZ	NG	1419 AK	OM 401
MERCEDES BENZ	NG	1419 K	OM 401
MERCEDES BENZ	NG	1419 LS	OM 401
MERCEDES BENZ	NG	1419 S	OM 401
MERCEDES BENZ	NG	1422	OM 421
MERCEDES BENZ	NG	1422 F	OM 421
MERCEDES BENZ	NG	1422 L	OM 421
MERCEDES BENZ	NG	1422 LS	OM 421
MERCEDES BENZ	NG	1422 S	OM 421
MERCEDES BENZ	NG	1425 AF	OM 422
MERCEDES BENZ	NG	1425 LS	OM 422
MERCEDES BENZ	NG	1425 S	OM 422
MERCEDES BENZ	NG	1428 AF	OM 422
MERCEDES BENZ	NG	1428 F	OM 422
MERCEDES BENZ	NG	1619	OM 401
MERCEDES BENZ	NG	1619 AK	OM 401
MERCEDES BENZ	NG	1619 K	OM 401
MERCEDES BENZ	NG	1619 KO	OM 401
MERCEDES BENZ	NG	1619 L	OM 401
MERCEDES BENZ	NG	1619 S	OM 401
MERCEDES BENZ	NG	1622	OM 421
MERCEDES BENZ	NG	1622 AK	OM 421
MERCEDES BENZ	NG	1622 K	OM 421
MERCEDES BENZ	NG	1622 L	OM 421
MERCEDES BENZ	NG	1622 S	OM 421
MERCEDES BENZ	NG	1625	OM 422
MERCEDES BENZ	NG	1625 AK	OM 422
MERCEDES BENZ	NG	1625 K	OM 422
MERCEDES BENZ	NG	1625 L	OM 422
MERCEDES BENZ	NG	1625 LS	OM 422
MERCEDES BENZ	NG	1625 S	OM 422
MERCEDES BENZ	NG	1626	OM 402
MERCEDES BENZ	NG	1626 AS	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	1628	OM 422
MERCEDES BENZ	NG	1628 A	OM 422
MERCEDES BENZ	NG	1628 L	OM 422
MERCEDES BENZ	NG	1628 LS	OM 422
MERCEDES BENZ	NG	1628 S	OM 422
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	1922	OM 421
MERCEDES BENZ	NG	1922 AK	OM 421
MERCEDES BENZ	NG	1922 K	OM 421
MERCEDES BENZ	NG	1922 S	OM 421
MERCEDES BENZ	NG	1926	OM 402
MERCEDES BENZ	NG	1926 A	OM 402
MERCEDES BENZ	NG	1926 AK	OM 402
MERCEDES BENZ	NG	1926 AS	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	1928	OM 422
MERCEDES BENZ	NG	1928 A	OM 422
MERCEDES BENZ	NG	1928 AK	OM 422
MERCEDES BENZ	NG	1928 AS	OM 422
MERCEDES BENZ	NG	1928 K	OM 422
MERCEDES BENZ	NG	1928 L	OM 422
MERCEDES BENZ	NG	1928 LS	OM 422
MERCEDES BENZ	NG	1928 S	OM 422
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	2025 S	OM 422
MERCEDES BENZ	NG	2026 S	OM 402
MERCEDES BENZ	NG	2028 A	OM 422
MERCEDES BENZ	NG	2028 LS	OM 422
MERCEDES BENZ	NG	2032 S	OM 403
MERCEDES BENZ	NG	2222	OM 421
MERCEDES BENZ	NG	2222 B	OM 421
MERCEDES BENZ	NG	2222 K	OM 421
MERCEDES BENZ	NG	2222 L	OM 421
MERCEDES BENZ	NG	2224 B	OM 402
MERCEDES BENZ	NG	2224 K	OM 402
MERCEDES BENZ	NG	2225	OM 422
MERCEDES BENZ	NG	2225 B	OM 422
MERCEDES BENZ	NG	2225 L	OM 422
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	2228	OM 422
MERCEDES BENZ	NG	2228 L	OM 422
MERCEDES BENZ	NG	2228 S	OM 422
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	2422	OM 421
MERCEDES BENZ	NG	2422 K	OM 421
MERCEDES BENZ	NG	2425	OM 422
MERCEDES BENZ	NG	2428	OM 422
MERCEDES BENZ	NG	2528 A	OM 422
MERCEDES BENZ	NG	2528 AK	OM 422
MERCEDES BENZ	NG	2626 AB	OM 402
MERCEDES BENZ	NG	2626 AK	OM 402
MERCEDES BENZ	NG	2626 B	OM 402
MERCEDES BENZ	NG	2626 K	OM 402
MERCEDES BENZ	NG	2628	OM 422
MERCEDES BENZ	NG	2628 A	OM 422
MERCEDES BENZ	NG	2628 AK	OM 422
MERCEDES BENZ	NG	2628 AS	OM 422
MERCEDES BENZ	NG	2628 B	OM 422
MERCEDES BENZ	NG	2628 K	OM 422
MERCEDES BENZ	NG	2628 S	OM 422
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	3025 B	OM 422
MERCEDES BENZ	NG	3025 K	OM 422
MERCEDES BENZ	NG	3028	OM 422
MERCEDES BENZ	NG	3028 B	OM 422
MERCEDES BENZ	NG	3028 K	OM 422
MERCEDES BENZ	NG	3228 B	OM 422
MERCEDES BENZ	NG	3228 K	OM 422
MERCEDES BENZ	NG	3328	OM 422
MERCEDES BENZ	NG	3328 B	OM 422
MERCEDES BENZ	NG	3328 K	OM 422
MERCEDES BENZ	NG	3528	OM 422
MERCEDES BENZ	NG	3528 B	OM 422
MERCEDES BENZ	NG	3528 K	OM 422
MERCEDES BENZ	O 302	O 302	OM 421
MERCEDES BENZ	O 303	O 303	OM 401
MERCEDES BENZ	O 303	O 303	OM 401 (RAM-Air)
MERCEDES BENZ	O 303	O 303	OM 402
MERCEDES BENZ	O 303	O 303	OM 403
MERCEDES BENZ	O 303	O 303	OM 421
MERCEDES BENZ	O 303	O 303	OM 421 A
MERCEDES BENZ	O 303	O 303	OM 422
MERCEDES BENZ	O 303	O 303	OM 441 A
MERCEDES BENZ	OH	1622	OM 421
MERCEDES BENZ	OH	1622 L	OM 421
MERCEDES BENZ	OH	1625	OM 422
MERCEDES BENZ	OH	1625 L	OM 422
MERCEDES BENZ	OH	1628	OM 422
MERCEDES BENZ	OH	1628 L	OM 422
MERCEDES BENZ	SK	1831	OM 401 LA
MERCEDES BENZ	SK	1831 K	OM 401 LA
MERCEDES BENZ	SK	1831 L	OM 401 LA
MERCEDES BENZ	SK	1831 LS	OM 401 LA
MERCEDES BENZ	SK	1831 S	OM 401 LA
MERCEDES BENZ	SK	2024	OM 401 LA
MERCEDES BENZ	SK	2024 K	OM 401 LA
MERCEDES BENZ	SK	2031	OM 401 LA
MERCEDES BENZ	SK	2031 K	OM 401 LA
MERCEDES BENZ	SK	2031 S	OM 401 LA
MERCEDES BENZ	SK	2429	OM 422
MERCEDES BENZ	SK	2531	OM 401 LA
MERCEDES BENZ	SK	2531 L	OM 401 LA
MERCEDES BENZ	SK	2629 K	OM 401 LA
MERCEDES BENZ	SK	2631	OM 401 LA
MERCEDES BENZ	SK	2631 B	OM 401 LA
MERCEDES BENZ	SK	2631 K	OM 401 LA
MERCEDES BENZ	SK	2631 S	OM 401 LA
MERCEDES BENZ	SK	3238	OM 402 LA
MERCEDES BENZ	SK	3538	OM 402 LA
MERCEDES BENZ	SK	3538 AK	OM 402 LA
MERCEDES BENZ	SK	3538 K	OM 402 LA
NEOPLAN	Cityliner	N 217/3	OM 402
NEOPLAN	Cityliner	N 217/3	OM 422
NEOPLAN	Jetliner	N 216	OM 422
NEOPLAN	Transliner	N 316	OM 401

FAQ

What is the function of an oil cooler cover?

The cover encloses the oil cooler housing, holding the cooling core bundle in place while keeping engine oil and coolant in separate circuits.

Which engines is this cover compatible with?

This part is designed specifically for use with Mercedes-Benz OM 421 and OM 421 A engines found in O 303 models.

Does this part include sensor connections?

Yes, this component is designed to accommodate sensor connections for monitoring engine thermal performance.

How can I identify if a replacement is needed?

Technicians should look for signs of leakage between the oil and coolant circuits or visible damage to the sealing surfaces of the housing.

What are the OE reference numbers of this part?

0101 049 directly replaces Mercedes-Benz OE number 4031803938S.