AW55-50SN 2004 Nissan Quest 3.5L FWD – Remanufactured 5-Speed Automatic Trans

Description

Meet demanding commercial passenger transport standards with 242 lb-ft continuous torque capacity and 270 PSI hydraulic line pressure thresholds. The Nissan Quest AW55-50SN Remanufactured Automatic Transmission outfits 2004 Quest 3.5L front-wheel drive minivans. Detroit technicians rebuild internal hydraulic circuits to eliminate harsh shift chatter on municipal airport shuttle routes.

Heavy-ribbed die-cast A380 aluminum casing structures eliminate bell housing deflection under repeated rapid passenger transport acceleration. Vacuum-tested valve bodies incorporate Sonnax hard-anodized bore sleeves to prevent line pressure drop under elevated summer operating temperatures. Carbon-metallic friction clutch packs work alongside surface-ground steel reaction plates. Specifications feature quick-connect fluid fittings, 8.0 quarts fluid capacity, and 192 lbs dry weight.

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.

• Upgraded linear solenoids eliminate delayed forward engagement and harsh garage shifts
• Sonnax hard-anodized valve bore sleeves prevent internal circuit bleed across shift valves
• Multi-segment carbon clutch frictions dissipate thermal saturation inside forward clutch packs
• Dynamic Nissan Quest AW5550SN planetary gear tooth profiling reduces geartrain backlash under load
• Precision-balanced torque converter units eliminate high-speed harmonic vibration on highways
• High-flow internal fluid pumps sustain 270 PSI line pressure during prolonged curb idling
• Integrated high-gauss magnets capture microscopic ferrous wear particles from fluid flow

Dynamic Drivetrain Ratio Specifications

Operating internal fluid pressures maintain continuous clamping force from 205 to 270 PSI under full throttle advancement. Sump fluid temperatures stay within an optimal 165°F to 185°F window during continuous passenger transport. Peak continuous input torque reaches 242 lb-ft at 4,400 RPM during shuttle fleet operations. Cooling circuits circulate 435 BTU per minute through external oil heat exchangers. Mechanical gear ratios include 4.77:1 first, 3.00:1 second, 1.96:1 third, 1.32:1 fourth, and 1.02:1 fifth.

Front Differential Spline Alignment

A precision-broached 29-spline differential interface connects directly with original equipment front drive axle shafts. Internal differential pinion gears hold 1,200 lb-ft static torque during aggressive curb acceleration. Total drive axle runout checks below 0.0013 inches on precision dial indicators to protect differential seals.

Operational Protocols Service Rules

Technicians must perform TCM adaptive relearn protocols using professional scan tools following unit installation before vehicle service deployment. This transmission is not engineered for full-throttle drag strip launches, engine software tunes exceeding factory limits, or towing beyond chassis limits.

• Inspect external fluid cooler lines and wiring harness plugs every 50 hours
• Service fluid pan filtration media and inspect magnetic collection points every 30,000 miles
• Evacuate and replace full transmission fluid volume with approved fluid every 12 months

Commercial Replacement Crate Details

Commercial owners receive an authorized 3-Year / 100,000-Mile commercial fleet warranty plan against manufacturing defects. Shipped inside a secure wooden container, the package includes a remanufactured automatic transmission, balanced torque converter, cooler line retaining clips, and a verified quality inspection document.