AW55-50SN 2005-2009 Nissan Quest 3.5L FWD – Remanufactured 5-Speed Automatic Trans

Description

Across an eight-hour route duration, high-frequency airport shuttle operations demand instant solenoid response to maintain smooth gear changes without flare. The Nissan Quest AW55-50SN Remanufactured Automatic Transmission provides five-speed automatic ratio transitions for 2005 to 2009 Quest 3.5L front-drive passenger minivans. Technicians remanufacture valve bodies to eliminate shift flare during intense regional passenger transit operations.

Precision high-pressure die-cast aluminum casings eliminate main housing flex under high-output V6 passenger loading. Remanufactured valve bodies receive precision-machined Sonnax linear solenoid bore sleeves to eliminate internal line pressure drop. High-energy carbon-metallic friction clutches combine with micro-finished steel separator plates. External utility parameters include quick-connect cooler lines, 8.0 quarts fluid capacity, and an overall dry mass of 192 lbs.

Key Features of Nissan Quest AW5550SN

Commercial transport fleets buy Nissan Quest AW55-50SN remanufactured automatic transmission packages to eliminate harsh shift flares across high-mileage airport shuttles. Rebuilt internal shift control components ensure predictable engagement under continuous transit operations.

• Updated linear solenoid assemblies eliminate delayed forward engagement from park into drive
• Hard-coat anodized valve body bore sleeves halt cross-circuit leakage in shift valve paths
• Thermal-resistant carbon friction materials eliminate clutch disc slipping under passenger load
• Ground-tooth Nissan Quest AW5550SN planet gear assemblies reduce geartrain noise under cruise
• Balanced lockup torque converter units prevent torsional crankshaft harmonics at high speed
• Positive-displacement oil pumps maintain continuous 270 PSI line pressure across all RPM bands
• Deep sump fluid pan magnets catch circulating ferrous particles before reaching solenoids

Input Torque Kinetic Parameters

Operating line pressures span from 205 to 270 PSI across all operational gear selections under maximum load. Transmission sump temperatures hold inside an optimal 165°F to 185°F range during continuous highway use. Input torque limits support 242 lb-ft at 4,400 RPM under severe commercial shuttle applications. Hydraulic fluid loops reject up to 435 BTU per minute through vehicle cooling systems. Forward gear ratios measure 4.77:1 first, 3.00:1 second, 1.96:1 third, 1.32:1 fourth, and 1.02:1 fifth.

Differential Axle Spline Interface

The unit features dual 29-spline differential side gears machined for flush mating with original equipment front halfshafts. High-strength internal differential pinions withstand 1,200 lb-ft static torque without tooth damage. Axle shaft seal face runout measures within 0.0013 inches on precision dial indicators.

Pre-Deployment Transmission Operating Rules

Technicians must perform an electronic TCM shift adapt relearn sequence using diagnostic scan software before regular route deployment. This transmission is not engineered for aftermarket nitrous oxide injection, competition drag racing, or commercial towing operations exceeding chassis limits.

• Examine external oil cooler line fittings and harness connections every 50 hours
• Drain transmission fluid and inspect pan magnet accumulations every 30,000 miles
• Perform complete hydraulic fluid changes with approved automatic transmission fluid every 12 months

Standard Crate Fleet Manifest

Purchases include a full 3-Year / 100,000-Mile commercial fleet warranty agreement covering commercial fleet usage. Inside the wooden shipping container rests a remanufactured automatic transmission unit, balanced torque converter, new cooler line clip seals, and a printed dyno test validation report.