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2868940
CUMMINS
2868940 gear retainer (RETAINER,GEAR) is a core precision fastening component for Cummins diesel engine timing gear systems. Installed on engine gear shafts and camshaft assemblies, it serves as a reliable locking plate to limit axial movement and radial displacement of timing gears during high-speed engine operation. This gear retainer effectively solves common engine faults such as gear dislocation, timing deviation, abnormal knocking noise, gear tooth wear and unstable power output caused by deformed, fatigued or worn old retainers, maintaining precise engine timing and stable mechanical operation.
1. High-Hardness Alloy Steel Material: Adopts high-strength carbon steel with integral quenching treatment, featuring strong shear resistance and compression resistance, not easy to bend, crack or deform under long-term engine vibration and gear impact.
2. Precision Flat Machining: Ultra-fine surface grinding ensures high flatness and tight fitting with gear end faces, eliminating assembly gaps and effectively preventing gear offset and timing deviation.
3. Excellent Anti-Fatigue Performance: Optimized structural design withstands long-term high-frequency vibration of engine operation, no permanent deformation or loosening after long-hour full-load working cycles.
4. Anti-Rust & Anti-Corrosion Treatment: Surface passivation treatment resists engine oil vapor, high-temperature gas and dust erosion inside the engine compartment, maintaining stable mechanical performance for long service life.
5. Accurate Mounting Specification: Standard mounting hole position and overall dimension perfectly match Cummins engine gear assembly structure, supporting plug-and-play replacement without cutting, drilling or secondary grinding.
6. Stable Extreme Temperature Adaptability: Maintains rigid and stable performance under -40℃ to +130℃ working environment, no brittle failure in low temperature or softening failure in high temperature.
7. Strict Factory Inspection: Finished products pass hardness test, flatness detection and vibration fatigue test, with stable batch quality for engine maintenance replacement and bulk fleet procurement.
- Part Number: 2868940
- English Name: RETAINER, GEAR
- Chinese Name: Gear Retainer
- Applicable Equipment: Cummins Diesel Engines
- Overall Dimension: 10cm 10cm 3cm
- Product Weight: 0.757KG
- Main Material: High-strength quenched alloy steel
- Working Temperature: -40℃ ~ +130℃
- Core Function: Fix timing gear position, prevent gear axial displacement, stabilize engine valve timing, reduce gear abnormal wear and noise
- Key Features: High hardness, anti-deformation, anti-vibration, anti-rust, precise fitting, long service life
- Installation Position: Engine timing gear shaft and camshaft assembly
- Package: Neutral export carton, independent anti-rust paper wrapping, foam shockproof protection to avoid surface scratch and deformation
Suitable for all engineering machinery, commercial trucks and generator sets equipped with Cummins diesel engines. Ideal for high-load continuous operation, dusty construction sites and alternating temperature environments. Effectively stabilize engine gear timing accuracy, eliminate abnormal engine knocking faults and reduce engine maintenance frequency.
Please confirm engine model and part number 2868940 before ordering to ensure accurate compatibility. We support global bulk wholesale for auto parts distributors, engine repair workshops and mechanical equipment fleets with sufficient stock and competitive pricing. Professional installation and timing calibration guidance are provided after sales.
