Volvo FH4 Voltage Converter 24V To 14V 21255320 Euro 6 Used

Description:
Genuine Volvo 24V to 14V voltage converter / power inverter module, part number 21255320, as used on Euro 6 Volvo FH4, FM4 and FMX-4 series trucks. This electronic module reduces the main 24V truck electrical system to a stable 14V DC output for various low-voltage consumers and control units. The part features a ribbed aluminium heatsink housing with integrated mounting brackets and a single multi-pin connector, identical to the unit shown in Volvo technical documentation and current aftermarket listings for PN 21255320.

The converter was removed from a fully operational vehicle and was tested on the truck before dismantling to confirm correct output and stable operation. After removal it has been visually inspected and lightly cleaned; no repairs or modifications have been carried out. The aluminium case shows normal in-service wear such as light dirt, small scratches and minor oxidation but no cracks or structural damage. Connector body and pins are in good condition with retaining clip present. This is a direct plug-and-play replacement for the original unit; no programming or coding is normally required, but we recommend installation by a qualified commercial vehicle electrician and checking wiring and earth points on the truck.

This module is suitable for Volvo FH/FH4, FM/FM4 and FMX-4 series Euro 6 heavy trucks where the original converter with OE number 21255320 or reference TP1656349 is fitted. Always match the part number and connector layout with your old unit before purchase to ensure compatibility. Ideal to cure faults such as 14V supply loss, intermittent power to auxiliary systems or related electrical warnings.

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.