Description
Product Overview
Part Name: Engine Valve Guide
Part Number: 3170135
Vehicle Compatibility: Fits Cummins QSK19 engines used in Komatsu HD785, BELAZ 75170, Hitachi EH3500 and other ultra-heavy mining and construction trucks manufactured between 2000–2024.
Configuration: Built from high-temperature alloy steel with a precision-machined inner bore for accurate valve stem travel. Designed for extreme-load environments with continuous-duty heat cycles.
Function: Maintains proper valve alignment, prevents valve wobble, stabilizes compression and supports efficient combustion. Replaces worn guides causing smoke, misfires or reduced power.
Technical Specifications
Type: Heavy-duty diesel valve guide
Material: Heat-treated alloy steel
Application: Compatible with QSK19-powered Komatsu, BELAZ and Hitachi mining trucks
Cross-Reference: Equivalent to Cummins OEM valve guide geometry and tolerances
Installation: Replace during cylinder head servicing or when excessive valve clearance appears
Service Interval: Typically replaced every 7,000–12,000 working hours
Delivery & Availability
Stock Options: Available in active stock
Delivery Time: 3–7 days internationally
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