Product Introduction

The Rock Arm 375 is a heavy-duty engine rocker arm assembly designed for HOWO 375 diesel engines used in SINOTRUK heavy-duty trucks. The rocker arm is a critical component of the engine valve train system, responsible for transferring camshaft movement to the intake and exhaust valves for precise engine timing and stable combustion performance.

During engine operation, the rocker arm converts rotational camshaft motion into linear valve movement, allowing proper intake and exhaust valve opening and closing. Stable rocker arm performance is essential for maintaining engine power output, fuel efficiency, compression stability, and smooth engine operation. Rocker arms are widely used in heavy-duty diesel engine valve train systems to ensure reliable valve actuation under high-load conditions.

Manufactured from high-strength alloy steel with precision heat treatment technology, this rocker arm provides excellent resistance to wear, fatigue stress, and high-temperature operating environments commonly found in commercial trucks and construction vehicles.

The Rock Arm 375 is commonly used in HOWO 375 dump trucks, tractor trucks, and mining transport vehicles equipped with WD615 series diesel engines. OEM-standard machining ensures accurate installation dimensions and reliable compatibility with original cylinder head assemblies.

Each unit undergoes hardness testing, dimensional inspection, and fatigue durability verification before shipment to ensure long service life and dependable engine performance. Heavy-duty diesel rocker arms are typically manufactured using hardened steel materials for improved durability and reduced valve train wear.

Technical Specifications

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Related Products Categories

Engine Parts System

Transmission & Drivetrain Parts

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