4923471 Valve Stem Guide (GUIDE,VALVE STEM) is a precision matching part installed inside cylinder head for CUMMINS series diesel engines. It limits the lateral displacement of intake and exhaust valve stems, ensures stable linear reciprocating motion of valves, and cooperates with valve oil seal to control lubricating oil consumption.
This valve stem guide solves common failures such as excessive valve clearance, oil burning, exhaust blue smoke and poor sealing caused by inner hole wear and deformation.
Core Product Advantages
High Wear-Resistant Alloy Material
Adopts special alloy material, low friction coefficient, withstand long-term high-frequency reciprocating friction with valve stem.
Precision Inner Hole Machining
Strict dimensional tolerance control guarantees reasonable fitting clearance, effectively avoid valve shaking and deflection.
Good Thermal Stability
Maintain stable size under high temperature working environment inside cylinder head, not easy to expand and jam.
Anti-Corrosion Performance
Resist erosion of high-temperature waste gas and lubricating oil, extend service life under severe operating conditions.
Smooth Inner Surface
Reduce abrasion to valve stem, improve lubricating oil film forming effect.
Standard Matching Specification
Dimension 8cm3cm8cm, weight 0.1KG, perfectly match supporting CUMMINS cylinder head assembly, direct replacement.
Strict Factory Inspection
All valve stem guides pass dimensional detection and hardness test, stable batch quality for engine overhaul factories and engineering fleets bulk procurement.
Basic Product Parameters
Part Number: 4923471
English Name: GUIDE, VALVE STEM
Product Name: Valve Stem Guide / Valve Guide
Applicable: For CUMMINS Series Diesel Engines
Overall Dimension: 8cm 3cm 8cm
Product Weight: 0.1KG
Core Function: Guide valve stem movement, keep valve concentric, reduce wear, assist oil sealing
Key Features: Wear-resistant, high precision, stable size at high temperature, low friction
Installation Position: Engine cylinder head
Package: Neutral export carton, independent anti-rust packaging to prevent inner hole scratch
Application Scenarios
Suitable for heavy-duty trucks, construction machinery, mining vehicles and diesel generator sets equipped with CUMMINS diesel engines. Adapt to long-distance full-load transportation and continuous high-intensity operation. Effectively improve valve operating stability and eliminate engine oil burning fault after replacement.
Purchase Reminder
Please confirm part number 4923471 and corresponding CUMMINS engine model before ordering to ensure complete compatibility. We support global bulk wholesale for auto parts distributors, engine overhaul workshops and transport fleets with sufficient stock and competitive prices. Press-fit installation suggestions will be provided after purchase.
