Shandong Huashou Transmission Technology Co., Ltd. is one of the leading manufacturers and suppliers of bulldozer powershift transmission in China. With abundant experience, we are committed to providing high quality customized products with competitive price. Welcome to wholesale bulk durable bulldozer powershift transmission in stock here from our factory. Also, pricelist is available.
Product Overview
Field downtime kills your project schedule and rental revenue. This Bulldozer Powershift Transmission delivers consistent loaded shifting for your heavy dozer fleets, built to handle repeated forward-reverse cycles under high push loads. It fits standard earthmoving dozers, pipelayers and landfill compactors. If you are tired of frequent transmission breakdowns delaying site work, this unit is worth your closer review.
Shock-Reduced Loaded Shifting
Dampened clutch engagement cuts driveline impact during frequent direction changes.
Independent Cooling Loop
Separated cooling prevents thermal drift under sustained heavy pushing work.
Field-Serviceable Valve Block
External mounting lets technicians test and service without full disassembly.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Bulldozer Powershift Transmission |
| Applicable Machine | 160–220 hp class crawler dozers (D6/D7, D65/D85 equivalent), pipelayers, landfill compactors |
| Transmission Type | Countershaft powershift with integral torque converter, hydraulically shifted under load |
| Rated Input Power | 160 kW (215 hp) |
| Maximum Input Speed | 2,100 rpm |
| Input Torque | 1,050 N·m max |
| Gear Ratios | Forward: 2.18 / 1.00 / 0.62 - Reverse: 2.60 / 1.18 / 0.68 |
| Forward / Reverse Speeds | 3 forward, 3 reverse, direction change without stopping the machine |
| Gear Type | Helical and spur gears, case-hardened and ground after heat treatment |
| Clutch Type | Wet multi-plate, sintered bronze, hydraulically actuated |
| Hydraulic Control Type | Electro-hydraulic proportional solenoid valve block, 24 V |
| Lubrication System | Forced pressure lubrication, gear-driven pump, suction screen plus 10 µm return filter, SAE 10W / TO-4 oil |
| Cooling Method | External oil-to-air cooler with thermostatic bypass, independent from lube circuit |
| Overall Dimensions | 980 × 620 × 760 mm (L × W × H, without cooler and harness) |
| Net Weight | 680 kg dry |
| Mounting Dimensions | SAE 3 flywheel housing, four-point engine flange mounting |
| Input Shaft Specifications | Splined converter input shaft, Ø45 mm, 24 teeth |
| Output Shaft Specifications | Splined output flange, Ø80 mm, 20 teeth, OEM pattern |
Key Components & Manufacturing Quality
Many low-cost transmissions fail early because individual parts are loosely checked instead of matched as a set.
Gear System
Alloy steel gears undergo carburizing heat treatment then precision grinding. Batch tooth-contact inspection guarantees stable power transfer and good wear resistance under sustained loads.
Clutch Assembly
Sintered friction plates, paired steel plates and machined pistons go through pre-assembly testing to maintain steady coordination with the shift system for reliable loaded shifts.
Transmission Housing
Ductile iron cast housing is fully CNC machined. Strict tolerance control on all mounting points delivers solid structural strength and consistent interface fitment.
Shaft & Bearing System
Precision-machined input and output shafts work with heavy-duty bearings. Tight control of mating clearances lowers side load and suppresses fatigue-related drift.
Applications & Compatibility
Many aftermarket ordering mistakes happen because suppliers only list their internal model codes. We match using references your team already works with: machine brand, machine model, serial number and original OEM part numbers.
This Bulldozer Powershift Transmission fits 160–220 hp crawler dozers, pipelayers and landfill compactors, compatible with common D6/D7, D65/D85 equivalent platforms.
Send your machine serial number or OEM part reference before quoting. We cross-check mounting interfaces, control wiring and torque specs to avoid costly fitment delays on site.
Performance & Testing
Buyers often receive units that pass basic checks but fail once fitted on site. Our validation separates routine checks from real operational testing.
Transmission Performance Testing
Every finished unit runs no-load cycling. We check input and output speed, shift sequence, hydraulic pressure, seal integrity, noise and vibration on the test bench.
Quality Inspection Process
We follow a fixed workflow: incoming material verification, component dimensional check, mid-assembly fit inspection, bench test, and final packaging audit.
Quality Documentation
Each shipment comes with matched test records and inspection logs. These traceable files support your internal quality review and compliance filing.
Customization & Wholesale Supply
Many suppliers only offer standard units and struggle to support repeat bulk orders. We build flexible supply for long-term aftermarket partners.
OEM / ODM Services
We adjust mounting flanges, valve voltage and gear ratios based on your machine specs, to match non-standard driveline requirements.
Wholesale Orders
We reserve dedicated production slots for regular wholesale buyers, stabilizing lead times against fluctuating market demand.
Production Capacity
Our integrated workshop maintains steady output for recurring orders, avoiding sudden supply gaps for your inventory plan.
Export Packaging & Delivery
Seaworthy export crating and complete customs documentation are prepared to reduce delays at your destination port.
FAQ
Q: Can this Bulldozer Powershift Transmission work with our existing machine control harness?
A: We review your harness pinout and solenoid specs first. If the signals do not match, we can supply a compatible interface setup instead of forcing rework on your side.
Q: What should we do if pressure readings are unstable after installation?
A: Start by checking oil cleanliness and filter condition. Send us the pressure log, and our technicians will walk you through calibration steps remotely.
Q: Are replacement wear parts for this transmission available separately?
A: Yes. We stock clutch plate kits, seals and solenoids that match this unit, so you do not need to source parts from multiple vendors.
Q: Does the warranty cover damage caused by improper oil selection?
A: No. The warranty only applies when you use the recommended TO-4 grade oil and follow the service guidelines in our manual.
Q: Can you confirm the transmission fits older machine serial ranges?
A: We cross-reference OEM part numbers and mounting dimensions. We will flag fit risks before you place an order.
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