Description
714-12-30013 Transmission Assembly by Tatan Overview
The 714-12-30013 Transmission assembly manufactured by Tatan is a heavy-duty countershaft-type, full powershift transmission with an integrated lock-up torque converter belonging to our Drivetrain & Transmission classification. Engineered specifically for Komatsu WA380-6 and WA380Z-6 18-ton wheel loaders, replacing your slipping or overheating transmission with a Tatan complete turnkey assembly eliminates forward/reverse shift delay, restores full climbing tractive force, and cures internal hydraulic pressure drop across demanding aggregate quarry, batching plant, and earthmoving applications.
Driven directly by the SAA6D107E-1 diesel engine and mounting the PTO hydraulic pumps that feed the WA380-6 main control valve, every genuine-grade 714-12-30013 Transmission incorporates precision ground constant-mesh gears, 6 sets of heavy-duty wet multi-disc clutches, an integrated ECMV proportional valve manifold, and front/rear output drive yokes, ensuring 100% direct bolt-on installation with chassis driveline shafts.
Key Attributes & Technical Parameters for 714-12-30013 Transmission
| Product Category | Transmission Assembly | Warranty | 1 Year / 12 Months |
| Specific Valve Model | Komatsu Countershaft 4F/4R Powershift | Brand Name | Tatan |
| Compatible Equipment | Komatsu WA380-6 | WA380Z-6 Wheel Loader | OEM Part Number | 714-12-30013 / 714-12-30010 |
| Matched Engine Series | Komatsu SAA6D107E-1 Diesel (143 kW / 191 HP) | Place of Origin | Guangdong, China |
| Clutch Control System | ECMV Electronic Proportional Modulation | Gear Speeds | 4 Forward / 4 Reverse Speeds |
| Torque Converter Spec | Single-Stage 3-Element with Lock-Up Clutch | Quality Status | 100% Brand New Assembly Complete with Valves |
| Machinery Test Report | Provided (100% Bench Dyno Pressure Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Transmission Oil Spec | Komatsu TO10 / SAE 10W Powertrain Oil | Packaging | Export Wooden Box Packaging |
Supported Construction Machinery Brands & Powertrain Lineup
In addition to Komatsu, Tatan manufactures and distributes replacement powershift transmissions, torque converters, and transfer gearboxes for major heavy equipment builders:
Heavy Earthmoving Drivetrain Engineering & Powershift Transmission Standards
Operating 18-ton wheel loaders through thousands of daily forward/reverse shuttle cycles requires exceptional gear tooth surface hardness and precise hydraulic clutch modulation. When repowering with the 714-12-30013 Transmission, Tatan supplies complete factory-tested powershift transmissions engineered with 20CrNiMo carburized gears, carbon-bronze sintered friction discs, and calibrated ECMV valve manifolds across global earthmoving fleets:
⚡ Smooth ECMV Shifting
Proportional solenoid modulation valves ramp up clutch pressure progressively, eliminating driveline shock during shuttle reversals.
🛡️ Lock-Up Direct Drive
Automatic lock-up converter locks turbine and impeller into direct mechanical drive in 2nd-4th gears, boosting hill-climb travel speed.
❄️ Thermal Durability
Heavy-duty sintered friction discs and reinforced rotary shaft seals withstand continuous converter stall oil heat up to 110°C.
Application Scenarios & Buyer Value
When upgrading or replacing your wheel loader drivetrain with our 714-12-30013 Transmission, buyers achieve maximum operational uptime and tractive control:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Komatsu WA380-6 Transmission Replacement | 1:1 direct bolt-on installation eliminates clutch slippage and restores instant forward/reverse shuttle acceleration. |
| Drivetrain Overhaul Workshops | Avoids the complex labor of clutch stack shimming and ECMV calibration; drops on as a sealed, pre-tested unit. |
| Quarry & Aggregate Batching Plants | Heavy-duty sintered discs withstand continuous high-stress torque converter stalls when penetrating compacted gravel piles. |
| Heavy Equipment Parts Stockists | Fast-moving, high-demand 18-ton loader transmission inventory ready for immediate shipment to minimize customer downtime. |
714-12-30013 Transmission OEM Diagnostic & Troubleshooting Guide
Use this OEM manual drivetrain diagnostic guide to troubleshoot powershift transmission and torque converter symptoms on your Komatsu WA380-6 wheel loader:
| Drivetrain Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Violent shift shock & gear banging during F/R directional change | ECMV proportional solenoid spool sticking from oxidized oil varnish, causing clutch engagement pressure to spike instantly rather than modulate. | Clean ECMV valve galleries, verify solenoid resistance, or install pre-calibrated Tatan 714-12-30013 complete transmission assembly. |
| 2. Loss of forward / reverse drive or delayed engagement when cold | Directional F or R clutch piston seal rings worn or internal leakage past clutch shaft rotating seal rings, dropping clutch pressure below 2.8 MPa. | Test clutch pressure at main test ports; replace complete transmission assembly to prevent clutch plate burnt seizure. |
| 3. Transmission oil temperature spikes (> 115°C) under heavy ramp hauling | Torque converter lock-up clutch slipping due to glazed friction discs, or lock-up ECMV valve failure preventing direct mechanical lock. | Install Tatan new 714-12-30013 transmission with factory-calibrated lock-up converter pack; flush transmission oil cooler lines. |
| 4. Bronze glitter & burnt smell in transmission oil filter | Main relief valve pressure decay allowing clutch plates to slip under load, rapidly shearing sintered bronze friction linings. | Stop loader immediately to prevent gear carrier destruction; bolt on a brand-new factory-tested Tatan powershift transmission. |
Transport Packaging & Certified Manufacturing Standards
Heavy powershift transmissions require rigid shipping cradles and internal corrosion protection. Every Tatan 714-12-30013 Transmission shipment undergoes internal oil fogging, heat-sealed plastic wrap, and solid timber export crating:
714-12-30013 Transmission FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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