WHAT IT DOES
The cylinder head closes the top of the cylinders and carries the valves, ports, injector bores and coolant passages. Heavy-duty diesel heads are usually cast iron and are replaced as a bare or fully assembled unit.
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Cylinder Heads · Mercedes-Benz Truck
Mercedes-Benz Truck OM457 Cylinder Head
OE A4570104421 / A4570100721
Aftermarket replacement for B2B importers, distributors, wholesalers and private-label programs.
- Product category
- Cylinder Heads
- Brand application
- Mercedes-Benz Truck
- Engine / model
- OM457
- OE references
- A4570104421 / A4570100721
- Application
- Mercedes-Benz Truck OM457
Confirm final specification and application before ordering.
PRODUCT OVERVIEW
ABOUT THIS CYLINDER HEAD.
The TRUPA Mercedes-Benz Truck OM457 Cylinder Head is an aftermarket replacement cylinder head referenced to OE numbers A4570104421, A4570100721. It is listed for Mercedes-Benz Truck OM457. TRUPA supplies it to importers, distributors, wholesalers and private-label programs, with China export supply and partner-warehouse support in the USA and Brazil for eligible orders.
APPLICATION & FITMENT
Listed for Mercedes-Benz Truck OM457. More parts for Mercedes-Benz Truck. Engine family: Mercedes-Benz OM457.
OE & INTERCHANGE NUMBERS
- A4570104421
- A4570100721
BEFORE YOU ORDER
- OE / casting number and engine model
- Bare or loaded (with valves, springs and so on)
- Single-cylinder or multi-cylinder head for the engine
- Emissions or fuel-system variant, which changes injector bores and ports
COMMON REPLACEMENT SIGNS
- Cracks between valve seats or at injector bores
- Coolant loss or combustion gas in the coolant
- Warped deck causing head-gasket failure
- Burnt valves or worn seats and guides
QUALITY CHECKS
Heads should be pressure-tested for cracks, with deck flatness, valve-seat geometry and bore dimensions checked against specification. How TRUPA approaches quality control.
B2B SOURCING
NEED MORE OE NUMBERS?
Send your product list, target quantity and market. We will check application coverage and delivery options.