Genuine VOLVO Engine Intake Valve — High Temperature Resistant Air Inlet Valve

The Genuine VOLVO Premium Heavy-Duty Engine Intake Valve (Part Numbers: 21896344 / VOE21896344 / 20758481) is a high-precision core valve train part installed inside cylinder head assembly, specially designed for VOLVO D7E and D6E electronic common rail diesel engines. Driven by rocker arm, it controls fresh turbocharged air entering combustion chamber during intake stroke. With excellent thermal stability and sealing performance, it effectively resists thermal fatigue, surface pitting and deformation. Replacing old intake valves during cylinder head overhaul can restore engine air intake efficiency, stabilize cylinder pressure, eliminate unstable idle speed and air backflow fault, and recover full engine power output.

Core Technical Advantages

• Heat-Resistant Alloy Steel Forging: Adopts silicon-chromium-nickel martensitic alloy material, stable structure under frequent cold and hot alternation, not easy to deform and crack.

• Stellite Alloy Hardened Sealing Surface: Laser hardening treatment on valve sealing face, strong wear resistance, effectively avoid valve surface sinking and air leakage.

• Hard Chrome Plated Polished Stem: Precision ground valve stem with chrome plating layer, smooth operation inside valve guide, prevent jamming and abnormal wear.

• Friction Welding Integrated Structure: Optimized combination of valve head and valve stem, strong impact resistance, durable under long-term frequent opening and closing impact.

Technical Specifications

Master Application Fleet Guide

This genuine intake valve is widely used in maintenance of VOLVO full-series engineering machinery equipped with D6E/D7E engines:

• Heavy Crawler Excavators: EC200D, EC200E, EC210D, EC210E, EC240B, EC250D, EC290B, EC300D

• Backhoe Loaders & Wheel Loaders: BL60, BL71B, L45B, L110E

• Road Construction Machinery: G710B, G746B, G960, G990 Motor Graders, SD135B Compactors, ABG8820B, P8820D Pavers

Critical B2B Procurement & Maintenance Guidelines

B2B Procurement Strategy

Engine intake valve belongs to essential wearing parts for cylinder head overhaul. After long-term operation, valve sealing surface will wear and sink, resulting in insufficient air intake and poor compression. It is recommended that spare parts suppliers prepare complete sets of intake valves according to engine cylinder quantity, and match with exhaust valves, valve guides, valve oil seals, valve springs and cylinder head gaskets to form complete valve train overhaul kits, matching cylinder liner four-piece set for overall engine repair.

Common Failure Phenomena

• Engine unstable operation, obvious air return sound inside intake pipe, serious engine misfire

• Heavy blue-white smoke when cold starting, oil burning phenomenon caused by loose fit between valve stem and guide

• Insufficient cylinder compression, weak machine performance, slow response under heavy load

Global Brand Cross-Reference Matrix

All device models are for compatibility reference only. Our genuine intake valves ensure sufficient air intake, stable combustion and long-term reliable operation for VOLVO D6E D7E engines.