MHK-3046 Engine – Machine
3AW-315B L Excavator
1SW-315B Excavator
6YM-315-A L Excavator
4YM-315-A Excavator
7RZ-315B FM L Excavator
7RZ-315B L Excavator
AKE-315C Excavator
CFB-315C Excavator
CFT-315C Excavator
CJC-315C Excavator
6DZ-317B LN Excavator
9WW-317B L Excavator
7KZ-318B N Excavator
AEJ-318B N Excavator
3LR-318B Excavator
ADC-318B Excavator
4MS-933C Track-type Loader
5JS-933C Track-type Loader
8FL-933 Track-type Loader
9EL-933 Track-type Loader
6DS-939C Track-type Loader
9DL-D5C III Track-type Tractor
4KS-D3C III Track-type Tractor
4TS-D3C III Track-type Tractor
5GS-D3C III Track-type Tractor
6SL-D3C III Track-type Tractor
7XL-D3C III Track-type Tractor
9TS-D3C III Track-type Tractor
1FW-D4C III Track-type Tractor
4LS-D4C III Track-type Tractor
6BS-D4C III Track-type Tractor
6YL-D4C III Track-type Tractor
7SL-D4C III Track-type Tractor
8CS-D4C III Track-type Tractor
5HS-D5C III Track-type Tractor
6CS-D5C III Track-type Tractor
6ZL-D5C III Track-type Tractor
7PS-D
Caterpillar 118-3748 Pinion – OEM-Grade Precision for Heavy Equipment Drivetrains
The Caterpillar 118-3748 Pinion is a critical drivetrain component engineered to meet the rigorous demands of various Caterpillar excavators, track-type loaders, and tractors. Designed with precision metallurgy and manufactured to OEM specifications, this pinion ensures optimal gear meshing and torque transmission under extreme load conditions. Compatible with models such as the 315B, 315C, 317B, 318B excavators, and D3C to D5C series track-type tractors, this pinion features robust construction with high-grade alloy steel, heat-treated for enhanced wear resistance and durability. Its exact dimensions and tooth profile guarantee seamless integration, minimizing drivetrain backlash and maximizing operational efficiency.
Built to withstand harsh working environments, the 118-3748 pinion delivers superior performance by maintaining consistent gear engagement, reducing vibration, and extending the service life of your heavy machinery. The precision engineering behind this component supports smooth power transfer and reduces mechanical stress on adjacent parts, thereby lowering maintenance costs and downtime. Whether used in excavation, earthmoving, or heavy-duty loading applications, this pinion is an essential replacement part that restores your equipment to factory-grade performance standards.
For reliable, high-performance drivetrain solutions, explore the full specifications and availability of the Caterpillar 118-3748 Pinion at 🔗 Caterpillar 118-3748 Pinion on AllParts.Expert. Ensure your heavy equipment operates at peak efficiency with this durable, OEM-quality pinion designed for demanding Caterpillar machinery.
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