Description
SAA6D125E-5 6217-01-1200 Engine Assembly by Tatan Overview
The SAA6D125E-5 6217-01-1200 Engine assembly manufactured by Tatan is a heavy-duty inline 6-cylinder, 11.04-liter electronic common-rail (ecot3) industrial diesel powerplant belonging to our Diesel Engine Assembly classification. Engineered specifically for Komatsu PC450-8, PC450LC-8, and PC450HD-8 45~48 ton mining excavators, replacing your failed or cracked engine with a Tatan complete turnkey assembly eliminates common-rail starting delays, restores 257 kW (345 HP) continuous rock-trenching power, and cures wet-liner coolant contamination across demanding quarry and mining applications.
Driving the excavator’s HPV165 hydraulic pump and distributing fluid through the PC450-8 main control valve, this complete diesel engine incorporates an induction-hardened forged steel crankshaft, mid-stop wet cylinder sleeves, internal gallery-cooled pistons, and a wastegated turbocharger, ensuring 100% direct bolt-on installation with flywheel housings and chassis mounts.
Key Attributes & Technical Parameters for SAA6D125E-5 6217-01-1200 Engine
| Product Category | Diesel Engine Assembly | Warranty | 1 Year / 12 Months |
| Specific Valve Model | Komatsu SAA6D125E-5 ecot3 Common-Rail Mining Engine | Brand Name | Tatan |
| Compatible Equipment | Komatsu PC450-8 | PC450LC-8 | PC450HD-8 | OEM Part Number | 6217-01-1200 / 6217-01-1310 |
| Matched Engine Series | Komatsu SAA6D125E-5 Tier 3 Engine | Place of Origin | Guangdong, China |
| Max Relief Pressure | 257 kW (345 HP) @ 1900 RPM Rated | Pilot Control Pressure | 11.04 Liters (125mm × 150mm) |
| Spool Precision Spec | Wet Liner < 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 Excavator Machinery Brands & Powertrain Lineup
In addition to Komatsu, Tatan manufactures replacement complete diesel engines, cylinder blocks, and overhaul components for major excavator brands:
48-Ton Heavy Mining Fleet Powertrain & Tier 3 Industrial Engine Standards
Operating 45~48 ton heavy production excavators with 3.0 m³ buckets in abrasive rock quarries demands extreme thermal durability and high fuel injection precision. Tatan delivers heavy-duty complete diesel engines engineered with heavy-wall wet sleeves, internal gallery-cooled pistons, and pre-matched sensor harnesses for diversified heavy equipment fleets:
⚡ High-Pressure Rail Stability
Factory-calibrated Bosch/Denso HPCR pumps maintain steady 160 MPa common-rail pressure, eliminating starting delays.
🛡️ Anti-Cavitation Wet Sleeves
Centrifugally cast alloy iron liners with viton seal rings resist high-frequency ultrasonic cavitation and cylinder wall pitting.
❄️ Gallery-Cooled Pistons
Internal oil-cooling galleries reduce piston crown temperatures under continuous 257 kW full-load rock breaking.
Application Scenarios & Buyer Value
When upgrading or replacing your 45-ton excavator powerplant with our SAA6D125E-5 6217-01-1200 Engine, buyers achieve maximum operational uptime and flow control:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Komatsu PC450-8 Engine Replacement | 1:1 direct bolt-on installation eliminates common-rail starting delays and restores 257 kW power for simultaneous hydraulic speeds. |
| Hydraulic Overhaul Workshops | Avoids the complex labor of block line-boring and electronic fuel timing; saves mechanic hours with a pre-dressed, dyno-tested unit. |
| Mining & Quarry Fleet Operations | Reinforced forged pistons and multi-layer steel head gasket withstand continuous heavy rock-breaker hammer operations. |
| Heavy Equipment Parts Stockists | Fast-moving, high-demand 45-ton engine inventory ready for immediate shipment to minimize customer downtime. |
SAA6D125E-5 6217-01-1200 Engine OEM Diagnostic & Troubleshooting Guide
Use this OEM manual diagnostic guide to troubleshoot SAA6D125E-5 common-rail engine symptoms on your Komatsu PC450-8 excavator:
| 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 6217-01-1200 complete engine assembly fitted with brand-new calibrated Bosch/Denso common rail injectors. |
| 2. Engine oil turns milky & coolant level drops in reservoir | Wet cylinder liner lower viton O-rings hardened or cavitation pitting eroding through the cylinder sleeve wall under high vibration. | Install Tatan new engine with factory-seated heavy-wall wet sleeves and dual-sealing viton liner packing. |
| 3. Heavy black smoke & engine bogging during compound dig | Cooled EGR valve stuck open by carbon soot or wastegated turbocharger actuator diaphragm leak, causing boost pressure loss (< 190 kPa). | Install Tatan turnkey complete engine; verify intake manifold pressure sensor reading and flush charge-air piping. |
| 4. Excessive blow-by mist spouting from crankcase breather tube | Top keystone compression ring groove carbon-welded or cylinder cross-hatch polished away under continuous 257 kW quarry hammer load. | Install Tatan brand-new engine assembly with gallery-cooled pistons and plasma-coated top compression rings. |
Transport Packaging & Certified Manufacturing Standards
Complete 11.04-liter diesel engines require absolute vibration and moisture isolation. Every Tatan PC450-8 engine undergoes anti-corrosion fogging, heat-sealed plastic wrap, and solid timber export crating:
SAA6D125E-5 6217-01-1200 Engine FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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