AW55-50SN 2003-2004 Volvo XC70 2.5L AWD/4WD – Remanufactured 5-Speed Automatic Trans

Description

Prevent clutch plate burnout and catastrophic pressure drop through 265 PSI clamping thresholds sustaining 258 lb-ft continuous torque along heavy all-wheel drive utility operations. The Volvo XC70 AW55-50SN Remanufactured Automatic Transmission powers 2003 to 2004 XC70 2.5L AWD wagons. Detroit technicians rebuild every sub-assembly to endure prolonged backroad duties under high ambient summer temperatures without hydraulic fade.

High-density A380 die-cast aluminum transmission cases resist stress fractures under severe chassis shock loads. Reconditioned valve bodies feature vacuum-tested Sonnax hard-coat bore sleeves to prevent circuit pressure cross-bleed under extreme fluid heat. Advanced carbon-metallic friction clutches combine with micro-finished steel separator plates. External utility specifications include quick-connect cooler ports, 7.6 quarts JWS 3309 fluid capacity, and 188 lbs dry weight.

Key Features of Volvo XC70 AW5550SN

Fleet supervisors buy Volvo XC70 AW55-50SN remanufactured automatic transmission units to restore full traction control across all-wheel drive utility wagons. Enhanced friction materials and rebuilt valve blocks guarantee repeatable shift timing under demanding commercial transit.

• Sonnax hard-anodized valve bore sleeve inserts eliminate internal pressure loss across shift control valves
• Thermal-resistant carbon friction materials eliminate clutch disc slipping during continuous fleet transit
• Computer-balanced torque converter units eliminate driveline resonance at elevated highway speeds
• Ground-tooth Volvo XC70 AW5550SN planetary gear sets maintain exact mesh tolerances under load
• Variable-displacement front oil pumps maintain 265 PSI pressure stability under heavy throttle demand
• Induction-hardened steel reaction plates resist heat checking under high-temperature braking events
• Bottom-access fluid pan magnets pull circulating ferrous metal particulate from oil flow

Kinetic Energy Output Ratios

Operating line pressures span from 200 to 265 PSI across all operational gear selections under maximum load. Transmission sump temperatures hold inside an optimal 165°F to 185°F range during severe commercial use. Input torque limits support 258 lb-ft at 3,500 RPM under severe commercial fleet applications. Hydraulic fluid loops reject up to 425 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.

Angle Gear Output Interface

Power directs out through a precision-machined 24-spline front differential output collar built for all-wheel drive angle gear connection. Internal differential components withstand 1,250 lb-ft static torque during sudden wheel slip recovery. Output collar runout checks hold inside 0.0014 inches to prevent angle gear seal degradation.

Field Service Usage Limitations

Trained technicians must execute diagnostic TCM shift-adaptation relearns using factory level equipment before releasing vehicles to road service. This transmission is not engineered for dedicated drag strip racing, extreme rock bouncer recreation, or loads beyond vehicle gross combination limits.

• Inspect external fluid cooler pipes and electrical connectors every 50 hours of operation
• Drop the transmission oil pan to renew fluid and wipe clean collection magnets every 30,000 miles
• Flush and refill full transmission oil volume using genuine JWS 3309 fluid every 12 months

Crate Inventory Warranty Coverage

Each unit carries a solid 3-Year / 100,000-Mile commercial fleet warranty coverage contract. The enclosed freight container holds a finished remanufactured transmission unit, spin-balanced torque converter, new oil cooler line clip seals, and a verified dyno load report sheet.