Description
SAA6D107E-1 6754-01-1200 Engine Assembly by Tatan Overview
The SAA6D107E-1 6754-01-1200 Engine assembly manufactured by Tatan is a heavy-duty inline 6-cylinder, 6.69-liter electronic common-rail industrial powerplant belonging to our Diesel Engine Assembly classification. Engineered specifically for Komatsu WA380-6 and WA380Z-6 18-ton wheel loaders, replacing your failed or overheated engine with a Tatan complete turnkey assembly eliminates common-rail starting delays, restores 143 kW (191 HP) high-stall torque converter power, and cures excessive crankcase blow-by across demanding aggregate quarry, batching plant, and earthmoving applications.
Driving both the transmission torque converter and the loader’s hydraulic main pump, this SAA6D107E-1 6754-01-1200 Engine delivers fluid to the WA380-6 main control valve, incorporating an induction-hardened forged steel crankshaft, gallery-cooled pistons, an upgraded plate oil cooler pack, and a wastegated turbocharger, ensuring 100% direct bolt-on installation with flywheel housings and chassis mounts.
Key Attributes & Technical Parameters for SAA6D107E-1 6754-01-1200 Engine
| Product Category | Diesel Engine Assembly | Warranty | 1 Year / 12 Months |
| Specific Valve Model | Komatsu SAA6D107E-1 ecot3 Wheel Loader Engine | Brand Name | Tatan |
| Compatible Equipment | Komatsu WA380-6 | WA380Z-6 Wheel Loader | OEM Part Number | 6754-01-1200 / 6754-01-1210 |
| Matched Engine Series | Komatsu SAA6D107E-1 Common Rail Diesel | Place of Origin | Guangdong, China |
| Max Relief Pressure | 143 kW (191 HP) @ 2100 RPM Rated | Pilot Control Pressure | 6.69 Liters (107mm × 124mm) |
| Spool Precision Spec | Plateau-Honed Bore < 0.003 mm Tolerance | Quality Status | 100% Brand New Turnkey Assembly |
| Machinery Test Report | Provided (100% Bench Dyno Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Hydraulic Fluid Spec | 15W-40 Heavy-Duty Diesel Engine Oil | Packaging | Export Wooden Box Packaging |
Supported Construction Machinery Brands & Powertrain Lineup
In addition to Komatsu, Tatan manufactures replacement complete diesel engines, cylinder blocks, and overhaul components for major heavy equipment builders:
Heavy Wheel Loader Powertrain Standards & Industrial Engine Engineering
Operating 18-ton wheel loaders under constant shuttle loading and torque converter stalls requires high transient power delivery. When repowering with the SAA6D107E-1 6754-01-1200 Engine, Tatan supplies complete industrial diesel units engineered with plateau-honed blocks, gallery-cooled pistons, and pre-matched sensor harnesses for diversified heavy equipment fleets:
⚡ Stall Torque Rise
Electronic fuel mapping delivers instantaneous fuel injection pressure during aggregate pile crowding, preventing engine stall.
🛡️ High-Lubricity HPCR
High-pressure common rail fuel pumps with hardened plungers withstand abrasive dust environments in batching plants.
❄️ Heavy-Duty Cooling
High-capacity water pumps and plate-fin oil coolers maintain stable operating temperatures under continuous shuttle cycles.
Application Scenarios & Buyer Value
When upgrading or replacing your wheel loader powerplant with our SAA6D107E-1 6754-01-1200 Engine, buyers achieve maximum operational uptime and flow control:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Komatsu WA380-6 Engine Replacement | 1:1 direct bolt-on installation eliminates common-rail starting delays and restores 143 kW power for fast bucket lift and shuttle travel. |
| Equipment Overhaul Workshops | Avoids the complex labor of block reboring and electronic fuel timing; saves mechanic hours with a pre-dressed, dyno-tested unit. |
| Quarry & Aggregate Batching Plants | Heavy-duty alloy pistons and multi-layer steel head gasket withstand continuous heavy torque converter stall loads. |
| Heavy Equipment Parts Stockists | Fast-moving, high-demand 18-ton loader engine inventory ready for immediate shipment to minimize customer downtime. |
SAA6D107E-1 6754-01-1200 Engine OEM Diagnostic & Troubleshooting Guide
Use this OEM manual diagnostic guide to troubleshoot SAA6D107E-1 common-rail engine symptoms on your Komatsu WA380-6 wheel loader:
| Hydraulic Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Hard starting / long cranking when engine is hot (Error CA559) | HPCR fuel injector internal spill-valve control seat micro-wear causing excessive back-leakage, dropping rail pressure below 35 MPa cranking threshold. | Replace with Tatan 6754-01-1200 complete engine assembly fitted with brand-new calibrated Bosch common rail injectors. |
| 2. Severe engine bogging & black smoke when scooping gravel piles | Turbocharger wastegate valve diaphragm leak or intake air boost sensor signal drift, causing low boost pressure (< 180 kPa) under torque converter stall. | Install Tatan turnkey complete engine; verify intake manifold pressure sensor reading and flush charge-air piping. |
| 3. Engine oil milky & coolant level drops in expansion tank | Heavy-duty plate oil cooler core internal element cracking from thermal shock, allowing pressurized engine oil to cross into cooling circuit. | Install Tatan brand-new engine assembly with factory pressure-tested heavy-duty plate oil cooler and new thermostat pack. |
| 4. Excessive blow-by mist spouting from crankcase breather tube | Piston top compression ring groove carbon-welded or cylinder cross-hatch polished away under continuous stop-and-go quarry duty. | Install Tatan brand-new engine assembly with gallery-cooled pistons and plasma-coated top compression rings. |
Transport Packaging & Certified Manufacturing Standards
Complete 6.69-liter loader diesel engines require absolute vibration and moisture isolation. Every Tatan SAA6D107E-1 6754-01-1200 Engine shipment undergoes anti-corrosion fogging, heat-sealed plastic wrap, and solid timber export crating:
SAA6D107E-1 6754-01-1200 Engine FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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