Eliminate balance shaft vibration and chronic oil consumption by selecting this Mitsubishi Outlander 2.4L Remanufactured Engine assembly. Built for compact sport utility applications, this 2.4L 4-Cylinder 16-Valve SOHC motor restores quiet highway operation. A mandatory trade-off demands replacement of the timing belt balance shaft tensioner and complete manual priming to prevent dry bearing friction on initial startup.

Cast iron engine block casting carries designation 4G64 stamped on the left side near cylinder number 1. The aluminum SOHC cylinder head carries casting mark G6 with non-MIVEC valvetrain architecture and a 12.25in bellhousing span. Crated envelope dimensions measure 36in length by 36in width by 36in height with an engine weight of 265 lbs. Internal parts include a micro-polished cast steel crankshaft, forged connecting rods, balance shaft assembly, and a 4.5-quart oil pan.

Key Features of Mitsubishi 4G64

Independent repair shops buy Mitsubishi 4G64 remanufactured engine assemblies to restore dependable commuter transport for aging sport utility vehicles. This long block stops piston ring blowby and maintains correct oil pressure to internal balance shaft bearings.

- Heavy cast iron block deck receives precision CNC resurfacing to establish an Ra 25 gasket surface
- Diamond plateau cylinder honing creates uniform cross-hatching to seat cast iron piston rings within 500 miles
- Micro-polished crankshaft journals hold 0.0003in TIR runout to prevent bottom-end bearing wear
- Align-honed main bearing saddles maintain 0.0012in clearance to stabilize rotating crank assemblies
- Timing cover oil pump assembly integrates the crankshaft position sensor mount for precise ignition timing
- Internal balance shafts undergo bearing alignment and journal polishing to prevent engine vibrations
- Reconditioned 16-Valve SOHC cylinder heads feature multi-angle cut valve seats holding 0.001in concentricity

Dyno Load Precision Machining Tolerances

Dynamometer load cell validation certifies 140 HP output at 5,500 RPM and 157 ft-lbs torque at 4,000 RPM under heated test cycles. Machine shop tolerances enforce crankshaft journal runout below 0.0003in TIR and connecting rod bearing oil clearances at 0.0012in. Plateau-honed cylinder walls produce compression between 175 PSI and 180 PSI across all 4 combustion chambers. Hot engine oil pressure maintains 55 PSI at 3,000 RPM while regulated coolant operating temperatures stabilize at 190°F to verify internal block flow integrity.

Vehicle Fitment Drivetrain Guide

This remanufactured long block fits 2003 Mitsubishi Outlander models powered by the 2.4L 2351cc SOHC 16-Valve 4-Cylinder engine with production dates between 6/02 and 5/03. Compatible with all-wheel drive or front-wheel drive platforms paired with 4-Speed Automatic transmissions. Fitment note: this unit features a 12.25in bellhousing width and crank sensor on the oil pump. It does not fit later MIVEC 4G69 models, Eclipse 2.4L variants, or turbocharged EVO platforms.

Installation Protocol Service Schedules

Verify timing belt tensioner pin release and align balance shaft timing marks before rotating the crankshaft by hand. Flush oil cooler lines and inspect radiator flow to protect internal bearings. Warning: do not run this non-turbo long block in custom turbo configurations exceeding 5 PSI of boost without dropping static compression and upgrading fuel delivery components.

- Fill crankcase with 4.5 quarts of SAE 5W-30 break-in motor oil before starting the engine
- Drain initial break-in oil and change the spin-on filter after completing the first 500 miles
- Complete recurring synthetic blend oil and filter changes every 3,000 miles or 5,000 miles

Warranty Terms Core Return Policy

We back this remanufactured Mitsubishi engine with our 3-Year Unlimited-Mile parts warranty for trusted consumer and shop protection. Our logistics team provides prepaid freight return tags for your rebuildable core within an authorized 30-day window. Each crated delivery includes the long block assembly, oil pan, valve cover, and technical installation guides.