2078211 Gear As-Idler Fits Caterpillar Models

One New Aftermarket Replacement Idler Gear (Gear As-Idler) for Caterpillar (Cat) C15 and C18 Engine Applications

This aftermarket replacement idler gear (Caterpillar part reference 207-8211 / 2078211) is a component of the front timing gear group on Caterpillar C15 and C18 engines. The idler gear transmits drive between the crankshaft gear and other front gear train components, maintaining precise timing relationships critical to engine valve operation and fuel injection timing. Weighing approximately 7 kg (16 lbs), this is a substantial gear used across a wide range of Cat heavy construction, off-highway, and industrial equipment platforms.

Specifications

• Weight: approximately 7 kg (16 lbs)
• Application: Front timing gear group, Caterpillar C15 and C18 engines

Compatible Models

Caterpillar Motor Graders: 24M

Caterpillar Off-Highway Trucks: 770, 770G, 770G OEM, 772, 772G, 772G OEM

Caterpillar Articulated Dump Trucks: 583T

Caterpillar Track-Type Tractors / Dozers: D8T, D9T

Caterpillar Pipelayers: PL83

Caterpillar Cold Planers: PM-201

Caterpillar Engines / Power Units: C15, CX31-C15I, TH35-C15I

Compatible with machines powered by Cat C15 and C18 engines. Verify your machine serial number and engine arrangement number before ordering to confirm fitment for your specific configuration.

Replaces Part Number(s):

2078211, 207-8211

New aftermarket replacement part - not remanufactured, not used.