Description
SAA6D102E-2 6738-C0-DB22 Engine Assembly Overview
The SAA6D102E-2 6738-C0-DB22 Engine assembly manufactured by Tatan is a heavy-duty inline 6-cylinder powerplant belonging to our Diesel Engine Assembly classification. Engineered specifically for Komatsu PC270-7 and PC270LC-7 27-ton excavators, replacing your worn or blown engine with a Tatan complete assembly eliminates cylinder blow-by, restores 140 kW (188 HP) heavy-duty digging torque, and cures coolant-oil cross contamination across demanding quarry and excavation applications.
Operating in direct coupling with the excavator’s main hydraulic pump and powering the PC270-7 main control valve, this diesel engine incorporates induction-hardened forged crankshafts, a 24-valve crossflow cylinder head, an integrated plate-type oil cooler, and a wastegated turbocharger, ensuring 100% direct bolt-on installation with flywheel housings and chassis mounts.
Key Attributes & Technical Parameters for SAA6D102E-2 6738-C0-DB22 Engine
| Product Category | Diesel Engine Assembly | Warranty | 1 Year / 12 Months |
| Specific Valve Model | Komatsu SAA6D102E-2 (Cummins B5.9 Base) | Brand Name | Tatan |
| Compatible Equipment | Komatsu PC270-7 | PC270LC-7 Excavator | OEM Part Number | 6738-C0-DB22 / 6738-01-1100 |
| Matched Engine Series | Komatsu SAA6D102E-2 Engine (140 kW) | Place of Origin | Guangdong, China |
| Max Relief Pressure | 140 kW (188 HP) @ 2050 RPM Rated | Pilot Control Pressure | 5.88 Liters (102mm × 120mm) |
| Spool Precision Spec | STD 102mm Piston < 0.003 mm Tolerance | Quality Status | 100% Brand New Turnkey Assembly |
| Machinery Test Report | Provided (100% Bench 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:
Multi-Brand Earthmoving Engine Supply & Powertrain Fleet Reliability
Operating high-hour 27-ton excavators under tough quarry conditions demands reliable powertrain engineering. Tatan provides heavy-duty complete diesel engines, water pumps, oil coolers, and crankshafts tailored for mixed fleets across Volvo, Komatsu, CAT, Cummins, and John Deere equipment:
🛡️ Zero Liner Distortions
Factory parent blocks precision-honed to standard 102mm bores eliminate the ring-pinching and piston-slap of re-sleeving.
🔥 Reinforced MLS Head Gasket
Multi-layer steel cylinder head gaskets with reinforced fire-rings stop combustion blow-by between rear cylinders 5 and 6.
🛢️ High-Capacity Lube Oil System
High-flow gerotor oil pumps maintain hot running pressure over 0.38 MPa, protecting connecting rod and camshaft bearings.
Application Scenarios & Buyer Value
When upgrading or replacing your 27-ton excavator powerplant with our SAA6D102E-2 6738-C0-DB22 Engine, buyers achieve maximum operational uptime and flow control:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Komatsu PC270-7 Engine Replacement | 1:1 direct bolt-on installation eliminates cylinder blow-by and restores 140 kW power for simultaneous boom, arm, and swing speeds. |
| Hydraulic Overhaul Workshops | Avoids the complex labor of block re-sleeving and crankshaft line-boring; saves mechanic hours with a pre-timed, 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 27-ton engine inventory ready for immediate shipment to minimize customer downtime. |
SAA6D102E-2 6738-C0-DB22 Engine OEM Diagnostic & Troubleshooting Guide
Use this OEM manual diagnostic guide to troubleshoot SAA6D102E-2 engine symptoms on your Komatsu PC270-7 excavator:
| Hydraulic Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Low oil pressure warning (< 0.1 MPa) at hot idle | Excessive crankshaft journal and connecting rod bearing clearance, or worn oil pump gerotor teeth losing oil delivery volume under 140 kW heat. | Replace with Tatan 6738-C0-DB22 complete engine assembly with induction-hardened journals maintaining > 0.38 MPa hot pressure. |
| 2. White steam & coolant boiling from expansion tank | Combustion gas blown past cylinder head gasket between rear cylinders 5 and 6 due to thermal concentration on 140 kW heavy digging. | Install Tatan new engine with factory-torqued MLS head gasket and precision surface-milled parent block face. |
| 3. Excessive blue-gray smoke & oil blow-by from breather tube | Dry parent-bore cylinder wall micro-scoring or broken top compression rings allowing high-pressure combustion blow-by into the oil pan. | Install Tatan new SAA6D102E-2 diesel engine; flush intercooler piping and replace primary air intake filter elements. |
| 4. Sluggish engine bogging & black smoke under hydraulic load | Wastegated turbocharger turbine shaft seizure or dirty fuel injection nozzle tips causing incomplete diesel combustion. | Inspect turbo boost pressure (> 175 kPa), verify in-line injection pump timing, or drop in complete replacement turnkey engine assembly. |
Transport Packaging & Certified Manufacturing Standards
Complete diesel engines require absolute vibration and moisture isolation. Every Tatan PC270-7 engine undergoes anti-corrosion fogging, heat-sealed plastic wrap, and solid timber export crating:
SAA6D102E-2 6738-C0-DB22 Engine FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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