Mitsubishi 6G75 3.8L V6 Remanufactured Engine – 40546

Description

Drive loaded 3.8-liter municipal service utility chassis across punishing interstate transit corridors under 180 PSI cranking compression force without detonation or thermal fade through the Mitsubishi 6G75 Non-MIVEC Remanufactured Engine. Built under production tag 40546 for Endeavor and Galant commercial platforms, this 24-valve SOHC V6 powerplant delivers dependable low-maintenance performance across multi-shift operations.

Heavy-duty cast iron block casting features thick cylinder wall construction and an Ra 28 micro-inch deck surface finish. A precision-ground forged steel crankshaft rotates within line-honed main bearing saddles, driving forged steel I-beam rods and hypereutectic pistons with anti-friction skirt coatings. Sump capacity measures 5.0 quarts within a stamped steel oil pan, while high-velocity oil circuits safeguard overhead valvetrain components across an overall dry engine mass of 440 lbs.

Key Features of Mitsubishi 6G75

Fleet operators buy Mitsubishi 6G75 remanufactured engine packages to eliminate chronic mechanical failures and maintain strict delivery schedules. Automated dyno cell testing confirms balanced cylinder compressions and stable oil pressure under severe commercial operating conditions.

• Single overhead camshaft per cylinder bank actuates 24 valves for proven low-RPM pulling torque
• Multi-layer steel cylinder head gaskets maintain combustion seals against continuous thermal cycles
• Plateau diamond honed cylinder bores eliminate ring blow-by and stabilize oil retention
• Precision line-honed main bearing saddles ensure true crankshaft alignment and lower drag
• High-flow internal trochoid oil pump provides 55 PSI cruising lubrication to protected bearings
• Induction-hardened valve seat inserts resist wear under prolonged continuous fleet operation
• Mitsubishi 6G75 long block units pass rigid non-destructive ultrasonic flaw testing

Combustion Output Thermal Limits

This V6 engine produces 225 horsepower at 5000 RPM alongside 255 lb-ft continuous torque at 3750 RPM using a 10.0:1 compression ratio. Dynamic cylinder cranking compression tests between 170 and 185 PSI across all six cylinders. Normal coolant operating temperatures hold between 185°F and 205°F, backed by 20 PSI hot idle oil pressure and 58 PSI cruising pressure. Radiator thermal rejection capacity measures 3450 BTU per minute under Severe Commercial Fleet duty cycle standards.

Driveline Crankshaft Interface Parameters

The rear crankshaft flange uses a six-bolt flexplate mounting pattern with an engineered 1.259-inch pilot hole dimension. Front crankshaft snout measures 1.181 inches with a precision keyway for timing belt sprocket location. Dial indicators measure crankshaft axial thrust endplay between 0.003 and 0.007 inches across all finished builds.

Pre-Lube Guidelines Servicing Limits

Technicians must prime internal engine oil passages with an external pressure tank before turning the ignition key to protect fresh bearing surfaces from dry friction. Conduct a twenty-minute cam run-in procedure at 2000 RPM using high-zinc break-in lubricant. This engine is not engineered for aftermarket turbochargers, nitrous systems, or trailer towing weights exceeding vehicle chassis ratings.

• Inspect fluid reservoirs and accessory belts each shift
• Change motor oil and replace spin-on filter every 4000 miles
• Inspect timing belt drive and tensioner every twelve months

Fleet Guarantee Package Manifest

Supported by our 3-Year 100000-Mile commercial fleet warranty for verified transport operations. The heavy wooden container holds the remanufactured long block engine, high-capacity oil pump, complete engine install gasket kit, spark plug tube seals, and a certified dynamometer qualification inspection report.