9132555 9161418 4309478 Final Drive for Hitachi EX30-2 EX35 Fiat-Hitachi FH35.2 | Travel Motor

Proven 2700 N·m Tractive Power for 2.5–3.5T Earthmovers. Direct OEM-fit TM03 dual-displacement hydraulic travel motor and 45.2:1 planetary reduction gearbox, engineered specifically for Hitachi EX30-2, EX35, EX35-2, and Fiat-Hitachi FH22.2, FH35.2 mini excavators.

1. Technical Operating Specifications

(Authority verified via Hitachi & Fiat-Hitachi engineering catalogs)

2. Resolving Hitachi EX30/EX35 Power Fade & Steering Sluggishness

Is your classic Hitachi crawler losing tractive push once hydraulic oil warms up, or veering during two-speed travel? On high-hour Hitachi EX-series excavators, thermal friction over decades widens the gap between the rotary cylinder barrel and valve plate. Under load, high-pressure oil bypasses directly into the case drain line, dropping low-speed torque below the required 2700 N·m rating. Swapping your worn drive with our precision-machined 9132555 / 9161418 final drive restores full volumetric efficiency, eliminates steering lag, and delivers crisp, synchronized dual-speed tracking across rough terrain.

3. Frequently Asked Questions (Technical & Commercial)

For Machine Owners & Operators (C-End Insights)

Q: Will this travel device bolt directly onto my Fiat-Hitachi FH35.2 without altering hydraulic lines? A: Yes. It matches OEM part number 9132555 / 4309478 exactly. The track frame mounting bolt pattern, drive sprocket register, and main forward/reverse/drain hydraulic port positions align directly with your existing machine setup.

Q: What must I check to ensure the casing does not overheat after installation? A: Always verify that the case drain line has unrestricted return to the hydraulic tank with zero backpressure. Additionally, ensure the planetary reduction gearbox is filled with clean SAE 80W-90 gear lubricant prior to the initial test run.

For Equipment Dealers & Repair Facilities (B-End Insights)

Q: Can part number 9161418 substitute for 9132555 across our parts inventory? A: Yes. Part numbers 9132555, 9161418, and 4309478 are direct factory engineering supersessions for the Hitachi EX30/EX35 and Fiat-Hitachi 3-ton platform, sharing identical 45.2:1 internal gear reduction ratios and hydraulic envelopes.

Q: How is international export shipping handled to avoid port contamination? A: Every drive is pre-tested, treated with anti-corrosion fluid, fitted with heavy-duty threaded steel/plastic port plugs, sealed in heavy vapor-barrier poly wrap, and bolted securely inside an ISPM-15 certified export wooden crate.

4.Parts list