VADEN Spare Parts for the Mercedes-Benz O 403
VADEN Spare Parts for the Mercedes-Benz O 403
The Mercedes-Benz O 403 is a heavy-duty, long-distance touring and intercity coach built by Mercedes-Benz Türk (Otomarsan) in SHD and RHD high-deck body variants. VADEN's catalogue lists 48+ compatible reference parts for this model — find the right one for your vehicle using its OEM number.
Products compatible with the Mercedes-Benz O 403
The list below is a live, filtered stock catalogue of VADEN parts compatible with the Mercedes-Benz O 403. We recommend always confirming fitment against your vehicle's OEM number before ordering.
Featured part groups
VADEN's core line: complete air brake compressors and repair/overhaul kits.
Go to category →Water pumps, thermostats and cooling-group components.
Go to category →Clutch servos and clutch-area components.
Go to category →Gaskets, pumps and ancillary components for the engine group.
Go to category →Filters, pumps and feed components for the fuel system.
Go to category →Mercedes-Benz O 403 generations
The O 403's SHD and RHD bodies were offered with different engines across its production run, so the generation alone is not enough to confirm fitment — the chassis or OEM number makes the final call.
| Generation | Years | Engines |
|---|---|---|
| O 403 SHD/RHD — Euro 1 (early production) | c. 1994–1996 | OM402LA (V8, 381 HP, SHD); OM441LA (V6, RHD) |
| O 403 SHD/RHD — Euro 2 | c. 1996–2004 | OM442LA (V8, 381 HP, SHD); OM441LA (V6, RHD) |
| O 403 — Euro 3 (2005 model) | c. 2005–2006 | OM457LA (inline-6, 422 HP) |
Mercedes-Benz O 403 engines
Explore compatible VADEN parts by the engine families fitted to this model. Engine identity must be verified by OEM/chassis number.
Why VADEN
VADEN parts are produced to OEM dimensions for a direct fit; every product is listed with its matching OEM numbers.
VADEN exports heavy-vehicle aftermarket parts to 100+ countries, with a deep range in the air-brake compressor line.
The correct part is always confirmed by OEM/chassis number; this page groups compatible VADEN parts for the model.
Frequently Asked Questions
Which versions of the Mercedes-Benz O 403 do VADEN parts fit?
VADEN offers compatible parts for both the SHD (Super-Hochdecker) and RHD (Reise-Hochdecker) body versions of the O 403, spanning its Euro 1 through Euro 3 production. Exact fitment depends on the vehicle's engine code and chassis/OEM number.
How do I choose the correct VADEN part?
The most reliable method is to look up your vehicle's original OEM number in the VADEN catalogue. This ensures the right match even if you're unsure of the exact body type (SHD/RHD) or production year.
Which engines was the O 403 built with?
Depending on the production period, the O 403 was built with the OM402LA (V8, SHD), OM441LA (V6, RHD), OM442LA (V8, SHD, Euro 2), and OM457LA (inline-6, Euro 3, 2005 model) engines. The VADEN catalogue lists compatible parts for all four engine codes.
Which part groups does VADEN offer for the O 403?
The catalogue lists 48+ compatible parts for the O 403 across air brake compressors, cooling system, clutch, engine, and fuel system groups.
Does a part made for one generation fit another?
Some parts may be shared across generations, but this is never guaranteed — fitment can change with a different engine code or body type. Treat generation as a starting point only, and confirm fitment with the OEM number before purchasing.
VADEN is an independent aftermarket manufacturer of heavy-vehicle spare parts. Mercedes-Benz, O 403 and related names are trademarks of their respective owners, used on this page solely to indicate compatibility. VADEN parts are not original equipment (OEM); exact fitment must be confirmed by the OEM part number.
