Description
Mercedes-Benz OM651 Cylinder Head Assembly – Complete Replacement Head
This OM651 cylinder head assembly is a factory‑fresh, fully assembled cylinder head built to OEM standards for Mercedes-Benz vehicles powered by the 2.1‑litre OM651 diesel engine. It is the ideal solution when your original cylinder head is cracked, warped, or worn beyond repair.
The OM651 is a widely used 4‑cylinder common‑rail turbo diesel engine found in many Mercedes passenger cars, SUVs, vans and light commercial vehicles. This complete head is manufactured to exact original tolerances, ensuring a perfect fit and long service life.
What’s Included – Complete Cylinder Head Assembly
This ready‑to‑install assembly comes with all internal cylinder head components pre‑installed:
- Cylinder head casting – precision‑machined, pressure‑tested
- Intake valves and exhaust valves (16 valves total)
- Valve springs, spring seats and retainers
- Valve stem seals (pre‑installed)
- Camshafts – intake and exhaust (DOHC)
- Hydraulic lifters / tappets (pre‑installed)
- Camshaft bearing caps and bolts (torqued to specification)
- Core plugs and oil gallery plugs (installed)
- Pre‑set valve clearances – no manual adjustment required
Note: This listing is for the cylinder head assembly only. The following external components are NOT included and must be transferred from your old head or purchased separately:
- Valve cover / rocker cover
- Timing chain, tensioner and guides
- Fuel injectors and glow plugs
- Intake and exhaust manifolds
- Turbocharger
- Camshaft sensors, actuator solenoids and wiring
Vehicle Compatibility
The OM651 2.1L diesel engine was fitted to a wide range of Mercedes-Benz and some Freightliner/other models. Always verify your engine code and OEM part number before purchase. Common applications include:
- Mercedes-Benz C-Class W204 / W205 (C200 CDI, C220 CDI, C250 CDI)
- Mercedes-Benz E-Class W212 / W213 (E200 CDI, E220 CDI, E250 CDI)
- Mercedes-Benz S-Class W221 / W222 (S250 CDI, select markets)
- Mercedes-Benz GLK / GLC (220 CDI / 250 CDI)
- Mercedes-Benz Vito / Viano (110 CDI, 113 CDI, 116 CDI)
- Mercedes-Benz Sprinter (210 CDI, 213 CDI, 216 CDI, 219 CDI)
- Other vehicles equipped with the OM651 engine (please confirm via OEM number)
Technical Specifications
| Engine Code | OM651 |
| Displacement | 2.1 Litre (2143 cc) – typical variant |
| Configuration | Inline 4-cylinder, DOHC 16-valve |
| Fuel Type | Diesel |
| Valvetrain | Double overhead camshaft, hydraulic lifters |
| Condition | Brand New – Complete Cylinder Head Assembly |
| OEM Part Numbers | AMC 908724 / Mercedes‑Benz A6510102220 / A6510103020 |
Why Choose This OM651 Cylinder Head
- 100% brand new – not reconditioned or repaired
- Pressure‑tested and vacuum‑tested for leaks
- OEM‑grade materials and exact machining tolerances
- Comes fully assembled – saves you hours of labour
- Packed in a reinforced crate for safe international freight
- Comprehensive warranty – see our warranty page
- Fast global shipping to port or door
If you need a Mercedes OM651 cylinder head for sale or a replacement head assembly, this complete unit gives your engine a factory‑fresh start. Order now for a reliable, direct‑fit solution.
More Cylinder Heads & Quick Contact
- Browse more cylinder heads: View our complete cylinder head catalog for Mercedes and BMW.
- Need help? Contact us directly on WhatsApp for fast compatibility checks and shipping quotes.
