Engine Piston with Rings 89.9mm A1120300617 for Mercedes-Benz M112 3.2L Cars 1997–2006

Product Overview

Part Name: Engine Piston with Ring Set

Part Number: A1120300617

Vehicle Compatibility: Mercedes-Benz passenger vehicles equipped with the M112 3.2L V6 petrol engine, commonly including Mercedes-Benz C-Class (W203), E-Class (W210/W211), CLK (W208/W209), ML-Class (W163), and SLK (R170) models (1997–2006). Suitable for engine rebuild and performance restoration applications.

Configuration: High-quality aftermarket engine piston supplied with piston rings, manufactured to OEM-equivalent specifications. Available in standard (STD) size and oversize options (+0.25 / +0.50) for precision engine rebuilding. Designed for reliable fitment and durability in V6 petrol engines.

Function: Converts combustion pressure into mechanical force transmitted through the connecting rod to the crankshaft, ensuring stable engine compression, efficient power delivery, and smooth engine operation.

Technical Specifications

Type: Petrol Engine Piston with Ring Set

Cylinder Diameter: 89.9 mm

Engine Model: Mercedes-Benz M112 3.2L V6

Material: High-strength aluminum alloy piston with precision-machined ring grooves and high-performance piston rings

Application: Fits Mercedes-Benz vehicles requiring OE piston reference A1120300617 (1997–2006)

Oversize Options: STD / +0.25 mm / +0.50 mm

Cross-Reference: Aftermarket equivalent to Mercedes-Benz OEM piston reference A1120300617; compatible with standard M112 connecting rods and crankshaft assemblies (verify bore size before installation)

Installation: Professional engine assembly recommended. Confirm piston clearance, ring end gap, and replace bearings, seals, and gaskets during engine rebuild.

Service Interval: Replace during major engine overhaul or when experiencing compression loss, piston damage, excessive oil consumption, or cylinder wear.

Delivery & Availability

Stock Options: Premium-quality aftermarket Mercedes-Benz M112 piston sets available for retail, wholesale, and export supply

Delivery Time: 3–7 days worldwide shipping