F4A42-2 2000-2001 Mitsubishi Eclipse, Galant 2.4L FWD – Remanufactured 4-Speed Automatic Trans

Description

Meet strict commercial fleet maintenance benchmarks with 174 lbs of dyno-certified drivetrain engineering that directs 155 horsepower through four computer-timed forward gear steps in the Mitsubishi F4A42-2 Remanufactured Transmission engineered for 2000 to 2001 Mitsubishi Eclipse and Galant 2.4-liter front wheel drive models. This four-speed transaxle sustains hydraulic pressure under severe urban transit demands.

Die-cast A380 aluminum casing architecture resists housing flex under heavy torque loads from the 2.4-liter engine. High-strength ductile iron planetary carriers and nitrided steel sun gears route power through carbon-metallic clutch packs featuring radial cooling slots. Hard-anodized sleeves eliminate valve bore wear to halt fluid bypass. Cooler circuit ports feature 3/8-inch inverted flare threads, fluid sump capacity measures 7.8 quarts, and total dry weight equals 174 lbs without torque converter.

Key Features of Mitsubishi F4A42-2

Professional service shops buy Mitsubishi F4A42-2 remanufactured transmission units to resolve delayed engagement and erratic shifting on high-mileage fleet sedans. Upgraded hydraulic circuits prevent line pressure decay under severe operating temperatures during demanding multi-stop courier routes.

• 240 PSI maximum line pressure maintains firm clutch pack engagement under aggressive vehicle acceleration.
• Hard-anodized valve bore sleeves halt hydraulic fluid bypass within the remanufactured valve casting.
• Carbon-metallic friction plates prevent slippage and dissipate severe thermal buildup under continuous load.
• Precision balanced remanufactured torque converter eliminates cyclic vibration through the front driveline components.
• Induction-hardened planetary gear teeth withstand heavy torque reversals in stop-and-go city traffic.
• Pulse-width modulated shift solenoids respond within 38 milliseconds for fast, precise ratio transitions.
• Dynamometer-tested Mitsubishi F4A42-2 automatic transaxle sensors send accurate speed data to the onboard computer.

Hydraulic Pressure Torque Thresholds

Line pressure ranges from 135 to 240 PSI across forward gear ranges to maintain clutch clamping force under heavy throttle. Operating fluid sump temperatures hold between 160°F and 192°F under demanding commercial duty cycles. Continuous input torque peaks at 180 lb-ft at 3,500 RPM, with fluid circuits shedding 525 BTU per minute through the cooling system. Gear reduction ratios deliver 2.84:1 in first gear, 1.53:1 in second gear, 1.00:1 in third gear, and 0.73:1 in fourth overdrive gear for efficient highway operation.

Differential Spline Drive Geometry

Front differential output hubs feature 27 splines that integrate straight with original constant velocity axle shafts. Internal parking pawl components hold up to 1,300 lb-ft static holding torque on steep parking grades. Transaxle bell housing runout remains under 0.003 inches, guaranteeing concentric alignment between input shafts and the engine crankshaft.

Preventive Maintenance Shift Guidelines

Technicians must perform a computerized TCM adaptive relearn procedure and check fluid levels via the dipstick tube at normal operating temperature. This front wheel drive transaxle is not engineered for drag strip launches, trailer towing past chassis limits, or off-road mud driving.

• Check transaxle fluid dipstick level and fluid clarity each shift prior to commercial vehicle dispatch.
• Drain transmission fluid pan and install new internal filter elements every 30,000 fleet service miles.
• Inspect external transmission cooler lines and fittings for fluid leaks every 250 operating hours.

Commercial Warranty Crate Inventory

Backed by a 3-Year / 100,000-Mile commercial fleet warranty for complete operational assurance. Each wooden shipping crate contains the remanufactured transaxle, precision balanced torque converter, replacement cooler line crush washers, detailed installation documentation, and an ATSG dynamometer test report validating hydraulic line pressure benchmarks.