Tatan Komatsu SAA4D95LE-3 Diesel Engine Assembly for Komatsu PC78US Excavator WA150 Loader D31EX Dozer

The Komatsu SAA4D95LE-3 Diesel Engine Assembly (OEM Part No. SAA4D95LE-3 / 6204-11-1100 / 6204-11-1020) by Tatan belongs to our heavy-duty Diesel Engine Assembly category. Versatile and high-performing, this 3.3L 4-cylinder turbocharged engine is engineered for Komatsu PC60-7, PC70-7, PC78US-6 excavators, WA120-3, WA150-5 wheel loaders, and D31EX-21, D37EX-21 crawler dozers, delivering robust digging power and high fuel efficiency under tough job site conditions.

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Key Product Highlights:

  • Product Category & Model: Diesel Engine Assembly | Komatsu SAA4D95LE-3 3.3L 4-Cylinder Engine.
  • Multi-Equipment Machine Fitment: Fits Komatsu PC60-7, PC78US-6 excavators, WA120-3, WA150-5 wheel loaders, and D31EX-21, D37EX-21 bulldozers.
  • OEM Part Number Reference: Direct replacement for Komatsu OEM part numbers SAA4D95LE-3, 6204-11-1100, 6204-11-1020, and 6204-01-1000.
  • 100% Dyno Tested: Full engine dynamometer performance, fuel injection pressure, and cooling test report provided before dispatch.
  • Factory Direct Wholesale Price: Cut middleman markup and save up to 40% on complete excavator, loader, or dozer engine replacement.
  • No Minimum Order Quantity (MOQ 1 PC): Available for single workshop replacement orders or bulk equipment fleet replenishment.
  • 100% Fitment Guarantee: Free engine serial number and flywheel housing verification by Gavin before shipping.

Description

Komatsu SAA4D95LE-3 Diesel Engine Assembly Overview

The Komatsu SAA4D95LE-3 Diesel Engine Assembly (OEM Part Numbers: SAA4D95LE-3, 6204-11-1100, 6204-11-1020, 6204-01-1000) manufactured by Tatan is a 3.26L 4-cylinder turbocharged water-cooled engine belonging to our Diesel Engine Assembly classification. Specially designed to fit Komatsu PC60-7, PC78US-6 excavators, WA120-3, WA150-5 wheel loaders, and D31EX-21, D37EX-21 dozers, replacing your worn engine with a Tatan complete SAA4D95LE-3 assembly eliminates equipment downtime, excessive blow-by, and severe hydraulic power loss instantly.

Built strictly according to original OEM specifications, this complete engine assembly comes pre-assembled with high-pressure fuel injection pump, turbocharger, starter motor, and alternator, ensuring 100% direct bolt-on fitment with hydraulic pump couplings and engine mount brackets.

⚠️ Technical Verification Notice: Komatsu SAA4D95LE-3 engines have minor variations in flywheel housing bolt patterns, starter angles, and oil pan sumps depending on machine applications (PC78US excavator vs. WA150 wheel loader vs. D31EX dozer). Please send your original engine nameplate photo or serial number to Gavin for free verification before ordering.

Key Attributes & Parameters for Komatsu SAA4D95LE-3 Diesel Engine Assembly

Product CategoryDiesel Engine AssemblyWarranty1 Year / 12 Months
Specific Engine ModelKomatsu SAA4D95LE-3 EngineBrand NameTatan
Compatible EquipmentKomatsu PC78US | WA150 | D31EXOEM Part NumberSAA4D95LE-3 / 6204-11-1100
Engine Displacement3.26 Liters (3260 cc / 3.3L)Cylinder Arrangement4 Cylinders Inline (I-4) 4-Stroke
Horsepower & RPM45-74 kW (60-99 HP) @ 2200-2500Cooling SystemWater-Cooled / Liquid Cooled
Fuel Injection SystemHigh-Pressure Common Rail (HPCR) / MechanicalAspiration TypeTurbocharged & Charge Air Intercooled
Machinery Test ReportProvided (100% Dyno Tested)Video Outgoing-InspectionProvided Before Shipping
Quality Status100% Brand New EnginePackagingExport Wooden Box Packaging

Supported Machinery Brands & Engine Parts Coverage

In addition to Komatsu, Tatan manufactures replacement complete diesel engines and overhaul components for leading machinery brands:

Tatan Compatible Excavator Machinery Brands Display Komatsu Caterpillar Hitachi Kobelco Volvo Cummins

Application Scenarios & Buyer Value

When upgrading or replacing your excavator, loader, or bulldozer engine with our Komatsu SAA4D95LE-3 Diesel Engine Assembly, buyers achieve maximum operational uptime and power efficiency:

Application ScenarioValue Delivered to Buyer
Komatsu PC78US / WA150 Engine SwapComplete engine swap cuts machine repair downtime by up to 70% compared to internal rebuilding.
Komatsu D31EX / D37EX Dozer OverhaulRestores original blade pushing torque and track drive pulling capacity under heavy earthmoving loads.
Engine Distributors & StockistsHigh-demand 3.3L multi-equipment engine ready for immediate resale to excavator, loader, and dozer fleets.
Rental Fleet MaintenanceExtends 6-to-8 ton equipment working lifespan and restores full hydraulic performance across construction fleets.

Komatsu SAA4D95LE-3 Diesel Engine Assembly OEM Diagnostic Guide

Use this OEM manual diagnostic guide to troubleshoot operational engine symptoms on your Komatsu equipment:

Engine SymptomTechnical Cause AnalysisTatan Factory-Grade Solution
1. Hard cold starting & dense white smokeFuel injection timing retarded or low cylinder compression (<2.8 MPa) due to worn piston rings in 4 cylinders.Adjust injection pump timing or replace with Tatan complete SAA4D95LE-3 engine assembly.
2. Severe power loss under heavy digging or dozer pushingTurbocharger wastegate failure leading to low boost (<1.1 bar) or fuel injection pump governor spring fatigue.Inspect turbocharger boost pressure or swap to a Tatan factory pre-tested SAA4D95LE-3 engine.
3. High engine oil consumption & heavy crankcase blow-byScored 3.3L cylinder liners, stuck oil rings, or valve stem seal wear allowing engine oil into combustion chambers.Install Tatan new SAA4D95LE-3 complete engine; flush engine oil gallery and replace oil filter.
4. Engine overheating & coolant surge into expansion tankWater pump impeller erosion, clogged radiator core, or cylinder head gasket leaking combustion gas into cooling jacket.Replace thermostat (82°C), flush cooling system, or swap to a new SAA4D95LE-3 complete engine assembly.

Transport Packaging & Fast Global Shipping

To ensure 100% damage-free international transport, every Tatan Komatsu SAA4D95LE-3 engine assembly undergoes anti-rust oiling, waterproof plastic sealing, and solid export wooden box packaging.

Global shipping supported by multiple logistics companies DHL FedEx UPS Sea Air Freight

✈️ Express Air Courier

Partnered with DHL, FedEx, UPS, and TNT for express door-to-door delivery worldwide.

🚢 Sea Cargo Freight

LCL and FCL ocean container shipping for heavy engine assemblies and bulk orders.

📦 Export Wooden Cases

Fumigated solid wooden boxes with thick shockproof foam lining for maximum safety.

Quality Control & International Certificates

Tatan diesel engines are manufactured under ISO 9001 quality management systems and strictly comply with CE safety standards.

Tatan Quality Assurance ISO9001 CE Qualification Certificates

Komatsu SAA4D95LE-3 Engine FAQ & Related Categories

Q1: Is this Komatsu SAA4D95LE-3 Diesel Engine Assembly compatible with Komatsu PC78US, WA150 loader, and D31EX dozer?
A: Yes. The Komatsu SAA4D95LE-3 engine is engineered for Komatsu PC60-7, PC78US-6 excavators, WA120-3, WA150-5 wheel loaders, and D31EX-21, D37EX-21 bulldozers. Send your original engine nameplate photo to Gavin for precise flywheel housing verification.
Q2: Does the engine assembly include the fuel injection pump and turbocharger?
A: Yes. Tatan complete engine assemblies come pre-assembled with fuel injection pump, fuel injectors, turbocharger, starter motor, and alternator ready for installation.
Q3: What are the primary OEM part numbers for the Komatsu SAA4D95LE-3 engine?
A: Common OEM reference numbers include SAA4D95LE-3, 6204-11-1100, 6204-11-1020, and 6204-01-1000.

Get Wholesale Factory Quote for Komatsu SAA4D95LE-3 Diesel Engine Assembly

Looking for direct factory pricing, stock availability, or technical advice for Komatsu SAA4D95LE-3 engines? Contact senior engineer Gavin now!

💡 Fast Quote: Send your engine serial number or nameplate photos for a 100% accurate match within 10 minutes!

* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.

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