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CAT D11T Final drive
CAT D11T Final drive
CAT D11T Final drive
CAT D11T Final drive

Caterpillar D11T Final drive

Caterpillar D11T Final Drive Assembly | Heavy-Duty Planetary Drive

OEM-spec Caterpillar D11T final drive assembly engineered for 100-ton mining dozers. Features double-reduction planetary gearing (17.5:1 reduction ratio) isolated from ground impact by Cat’s elevated sprocket design, delivering maximum drawbar pull and rim torque for extreme rock ripping.

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Description

OEM-Quality Caterpillar D11T Final Drive Assembly

Maximize high-production earthmoving efficiency, restore propel torque, and handle extreme ripping resistance with a heavy-duty Caterpillar D11T Final Drive Assembly. Engineered specifically for Caterpillar D11T and D11T CD (Carrydozer) mining tractors, this double-reduction planetary final drive converts power shift transmission torque directly to the drive sprocket segment rims.

Utilizing Caterpillar’s signature elevated sprocket layout, this assembly is raised high above ground debris—completely isolating internal precision planetary gear sets, shafts, and mechanical face seals from direct impact spikes, track frame twist, and mud packing.

Key Features & Benefits

  • Double-Reduction Planetary Design: Heavy planetary gear sets divide high torque loads across multiple planet gears, dramatically reducing tooth strain during heavy single-shank rock ripping.

  • Elevated Sprocket Architecture: Shields precision planetary gears and main drive bearings from high-impact ground shocks and severe lateral frame loads.

  • Extreme-Load Metallurgical Heat Treatment: Carburized and induction-hardened alloy planet gears, sun gears, and ring gears handle severe cyclic dynamic loads without gear spalling.

  • Heavy-Duty Duo-Cone Face Seals: Precision metal-to-metal face seals retain high fluid capacity while completely blocking fine abrasive silica dust, slurry, and moisture ingress.

  • Direct OEM Fitment: Precision-machined to match standard Caterpillar D11T steering clutch/brake housings, main frame SCAB faces, and 3-piece bolt-on sprocket segments.

Verified Technical Specifications

Parameter Specification
Compatible Machine Model Caterpillar D11T / D11T CD (Carrydozer)
Dozer Operating Weight Class ~104 – 113 tonnes (230,000 – 248,500 lbs)
Engine Partner Compatibility Cat C32 ACERT™ V12 Diesel Engine
Drive System Type Double-reduction planetary gear design
Total Final Drive Reduction Ratio 17.5 : 1
Final Drive Fluid Refill Capacity 31 L (8.2 gal) per side
Sprocket Configuration Elevated 3-piece bolt-on segment rim group
Application Rear Drive Propulsion (Left / Right Final Drive Module)

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