MAN TGS/TGX Load Relay 24V 8125902052 81.25902-0521 V23234-C0004-X021 Euro 5/6 Other Engines & Components

Description:
This listing is for a genuine MAN 24V load relay set used in MAN TGS and TGX series trucks. The main relay is OE MAN part number 81.25902-0521, clearly marked on the metal housing together with 24V rating, Made in Turkey, code 33311 and E10R-024297 approval. The second relay in the set is a TE Connectivity/Tyco unit with part number V23234-C0004-X021, also rated at 24V. TE/Tyco V23234-C0004-X021 is widely referenced in commercial vehicle parts catalogues as a direct replacement or cross-reference for various MAN, Mercedes-Benz, Iveco and DAF applications, including MAN relay numbers 81259020017, 81259020439, 81259020459, 81259020473 and others.

Functionally, these are multi-pin 24V power/load relays used in the truck electrical system, typically installed in the interior fuse/relay box for controlling high-current circuits such as auxiliary loads, heating, lighting or body equipment depending on the vehicle specification. The design features a standard MAN/TE 5-pin to 8‑pin blade terminal layout compatible with MAN TGS/TGX Euro 5 and early Euro 6 wiring harnesses. These relays are suitable as replacement parts for faulty original units with matching part numbers.

The relays were removed from a running MAN TGS/TGX truck and were checked for correct operation on the vehicle prior to dismantling. After removal, basic bench tests were carried out to confirm coil activation and switching performance at 24V. Housings and terminals show normal used condition with light oxidation and cosmetic marks but no structural damage. Both relays are sold as a matched used set, exactly as shown in the photos.

Compatibility (to be confirmed by buyer):
• MAN TGS 2007–2014, various Euro 5 models using relay 81.25902-0521 or cross numbers.
• MAN TGX Euro 5 and some Euro 6 models where 81.25902-0521 / V23234-C0004-X021 is specified in the fuse/relay box.
Cross-reference numbers found in manufacturer and aftermarket catalogues include: MAN 81.25902-0521, 81259020017, 81259020439, 81259020459, 81259020473, 81529020461, 85200011380; TE/Tyco V23234-C0004-X021 / V23234C0004X021; Mercedes-Benz A0015425619, A0045451405; other OE 1378238 and related numbers. Always match the part number from your old relay and check electrical specifications before purchase.

Installation notes:
Direct replacement for units with identical part numbers and pin configuration. No coding or programming is normally required after installation, but the vehicle’s electrical system should be switched off and battery disconnected before work. Installation should be performed by a qualified commercial vehicle electrician or workshop. After fitting, verify correct operation of the controlled circuit and check for any fault codes.

This is a genuine used part supplied with a 3‑month warranty. The item was tested on the truck before dismantling and inspected after removal. Please review all photos and part numbers to ensure compatibility with your vehicle.

Shipping & Returns:
We ship across UK/EU with tracked services. Returns accepted within 30 days; buyer pays return postage. Please inspect upon arrival and message us with any concerns.

Why Buy From Us:
Genuine part, 3-month warranty, fast dispatch, secure packaging.