Product Overview
3038996 Idler Gear (GEAR,IDLER) is a precision idle transmission gear specially designed for Cummins series diesel engine timing systems. Installed between driving and driven gears, it adjusts gear meshing clearance and tension, ensures synchronous rotation of engine timing parts, and transmits stable torque for camshaft, injection pump and auxiliary components.
This idler gear effectively solves common timing system failures such as gear tooth wear, abnormal knocking noise, loose timing chain and timing deviation caused by aged, deformed or fatigued idle gears, guaranteeing accurate valve and fuel injection timing of Cummins engines.
Core Product Advantages
High-Strength Quenched Alloy Steel
Overall quenching heat treatment brings high surface hardness and strong impact resistance, resistant to long-term high-load meshing wear, no tooth collapse or fracture under frequent engine operation.
CNC Precision Tooth Machining
Fine hobbing and grinding process creates smooth tooth surface and accurate tooth profile, uniform meshing clearance lowers running noise, avoids jitter and tooth skipping during high-speed rotation.
Optimized Stress Dispersion Structure
Thickened gear root design disperses meshing pressure, improves anti-fatigue performance, effectively prevents gear root crack failure under long-term vibration and torque impact.
Wide Temperature Adaptability
Stable mechanical performance in -40℃ ~ +135℃ working range, no thermal deformation in high-temperature engine compartment, keeps accurate meshing all year round.
Anti-Rust & Anti-Corrosion Surface Treatment
Passivation anti-oxidation coating resists erosion of engine oil, high-temperature oil vapor and dust, avoiding tooth surface rust and precision loss.
Standard Matching Size
Standard dimension 13cm6cm13cm and 1.379KG weight perfectly match Cummins engine timing gear chamber, plug-and-play installation without secondary cutting or grinding.
Strict Factory Quality Inspection
Finished gears pass hardness test, tooth precision detection and continuous meshing aging test, stable batch quality for engine overhaul, daily maintenance and fleet bulk procurement.
Basic Product Parameters
Part Number: 3038996
English Name: GEAR, IDLER
Product Name: Idler Gear / Timing Idle Wheel
Applicable Engine: Cummins Series Diesel Engines
Overall Dimension: 13cm 6cm 13cm
Product Weight: 1.379KG
Main Material: High-hardness quenched alloy steel
Working Temperature: -40℃ ~ +135℃
Core Function: Adjust timing gear tension, transmit torque, maintain synchronous rotation of engine timing assembly, prevent timing deviation
Key Features: Wear-resistant, low noise, anti-fatigue, anti-corrosion, precise meshing, stable transmission, easy installation
Installation Position: Engine timing gear chamber, between crankshaft gear and camshaft gear
Package: Neutral export carton, independent anti-rust oil paper packaging to avoid tooth surface scratch and collision damage
Application Scenarios
Suitable for heavy-duty trucks, construction machinery, mining equipment and diesel generator sets equipped with Cummins diesel engines. Adapt to long-hour full-load operation, high-temperature dusty working environments and bumpy road conditions. It stabilizes engine timing accuracy, eliminates abnormal gear knocking noise, and reduces timing system maintenance frequency.
Purchase Reminder
Please confirm part number 3038996 and Cummins engine model before ordering to ensure accurate compatibility. We support global bulk wholesale for auto parts distributors, engine repair workshops and engineering fleets with sufficient stock and competitive prices. Professional timing gear installation and calibration guidance are provided after sales.
