Komatsu D475A-5 Transmission

Description

OEM-Quality Komatsu D475A-5 Final Drive Assembly

Deliver massive ground-engaging power, extreme ripping traction, and reliable track propulsion in high-tonnage mining applications with a heavy-duty Komatsu D475A-5 Final Drive Assembly. Engineered specifically for Komatsu D475A-5, D475A-5EO, and D475A-5SD (100-tonne operating weight class) crawler dozers, this elevated planetary reduction unit converts high-speed transmission and bevel gear input into high-torque drawbar output.

Designed to isolate the drive gears from ground impact shocks and frame torsional flex, each assembly utilizes a double-reduction planetary gear design paired with carburized, induction-hardened gear metallurgy to survive continuous heavy-slot dozing and hard-rock ripping.

Key Features & Benefits

• Double-Reduction Planetary Engineering: Distributes high gear torque across multiple planet gears, reducing gear teeth stress under heavy blade and ripper loads.

• Elevated Sprocket Drive Architecture: Positions the final drive hub above the track roller frame line, shielding seals and gears from direct mud impact, abrasive slurries, and bench rocks.

• Carburized & Induction-Hardened Alloy Gearing: High-grade alloy steel sun gears, planet gears, and ring gears undergo deep metallurgical heat treatment to eliminate pitting and tooth shear.

• Duo-Cone Lifetime Mechanical Face Seals: Prevents dirt, silica, and moisture ingress while retaining gear oil viscosity during high-temperature mining shifts.

• Direct Drop-In Steering Case Interface: Engineered to exact OEM tolerances for direct bolt-on alignment with the main steering/brake housing and segmented sprocket rim segments.

Verified Technical Specifications