RE4R01A 2000-2002 Nissan Frontier, Xterra 3.3L RWD – Remanufactured 4-Speed Automatic Trans

Description

Excessive line pressure drop and severe forward clutch slip compromise municipal dispatch deadlines under 202 lb-ft working engine torque until updated steel-sleeved valve body bores restore hydraulic clamp force inside the Nissan Frontier Xterra RE4R01A Remanufactured Transmission built for 2000 to 2002 Frontier and Xterra two-wheel drive fleet platforms powered by 3.3L V6 engines.

A heat-treated A380 aluminum casing holds micro-finished planetary carriers, high-energy friction plates with spiral cooling channels, and CNC-machined separator plates. Linear pulse-width solenoids regulate main line fluid rise across all operational ranges. The unit weighs 175 lbs dry, requires 8.3 quarts of automatic transmission fluid, and incorporates dual 3/8-inch fluid cooler tube attachments.

Key Features of Nissan Frontier

Fleet supervisors choose to buy Nissan Frontier automatic transmission modules to end chronic second gear shift flares and stop torque converter lockup shudder under high-mileage fleet operation. Every transmission receives updated electronic solenoids and fresh clutch plates.

• 4-speed electronic control architecture provides balanced ratio steps for city transit and highway driving.
• CNC-machined valve body bore sleeves eliminate hydraulic pressure drop across primary shift circuits.
• Precision balanced torque converter units prevent engine idle shudder and driveline vibration under load.
• Upgraded electronic line pressure solenoids maintain consistent hydraulic force across wide temperature bands.
• Nissan Frontier RE4R01A drivetrain solutions incorporate micro-polished clutch drum journals to reduce seal friction.
• Heavy-duty casing output seals maintain leak-free operation under severe axle joint angles.
• High-retention magnetic drain plugs collect steel wear particles from internal gear meshes.

Dynamic Torque Transfer Gear Ratios

Internal fluid pumps maintain 130 to 145 PSI line pressure to support 202 lb-ft continuous input torque at 4,800 RPM across severe fleet operations. Auxiliary heat exchangers dissipate 950 BTU/min to hold sump temperatures below 185°F. Mechanical reduction ratios provide 2.78:1 first gear, 1.54:1 second gear, 1.00:1 third gear, and 0.69:1 fourth gear overdrive.

Output Shaft Spline Interface Yoke Dimensions

The transmission output shaft features a 26-spline slip yoke connection designed for direct engagement with rear driveshaft universal joints. Output shaft seal journal runout holds within 0.001 inches, halting fluid leaks under severe cargo hauling. Bell housing patterns fit flush against Nissan VG33E V6 engine blocks using precision dowel guide pins.

Shift Calibration Protocol Service Limits

Perform scan tool electronic line pressure relearn procedures and verify fluid level at hot idle before returning trucks to fleet service. This unit is not engineered for vehicle track competition, forced induction power builds over 260 horsepower, or towing cargo trailers exceeding 5,000 lbs.

• Check transmission fluid level using the hot dipstick method during each 10,000-mile service.
• Drain and replace automatic transmission fluid using approved fluid every 30,000 miles.
• Inspect neutral safety switch harness connectors and wiring pins every 12 months.

Fleet Guarantee Package Shipping Manifest

Delivered with a 3-Year / 100,000-Mile commercial fleet warranty covering internal parts and certified labor. The rigid export crate holds the remanufactured four-speed automatic transmission, balanced torque converter, replacement cooler line washers, service bulletin sheet, and dynamometer spin test documentation.