AW55-50SN 2001-2002 Volvo S60, V70 2.4L FWD – Remanufactured Automatic Trans

Description

Featuring a 4.77:1 first gear ratio alongside 265 PSI hydraulic pressure control, this unit accelerates loaded passenger wagons without shift hesitation. The Volvo AW55-50SN Remanufactured Automatic Transmission equips 2001 to 2002 S60 and V70 2.4L front-drive platforms. Remanufacturing millwrights calibrate each linear solenoid to eliminate harsh shift flares during urban traffic routes.

Rigid die-cast A380 aluminum cases eliminate case distortion under high torque loads. Valve body assemblies receive hard-anodized Sonnax sleeves that prevent hydraulic fluid escape across internal pressure channels. High-energy carbon-metallic friction clutches run against micro-finished steel separator plates. Physical casing parameters provide quick-connect cooler ports, 7.6 quarts JWS 3309 fluid capacity, and an overall dry mass of 183 lbs.

Key Features of Volvo AW5550SN

Fleet dispatch managers buy Volvo AW55-50SN remanufactured transmission packages to ensure dependable scheduled passenger route operation. Hardened internal components resist thermal wear under continuous stop-and-start urban taxi driving cycles.

• Recalibrated linear solenoid packs eliminate shift flare across second-to-third gear changes
• Bore-hardened Sonnax sleeve upgrades restore line pressure retention inside valve bodies
• Segmented carbon clutch discs maximize transmission fluid circulation across friction faces
• Micro-finished Volvo AW5550SN sun gear shafts reduce geartrain drag under engine load
• Computer-balanced lockup torque converter units prevent engine idle shudder during transit
• Precision-machined gerotor oil pumps hold continuous 265 PSI pressure under high heat
• Internal transmission case magnets catch circulating metallic particles to protect spool valves

Kinetic Hydraulic Transfer Limits

Main line hydraulic operating pressures range from 200 to 265 PSI under heavy throttle demands. Fluid sump temperatures maintain an optimal 165°F to 185°F window during continuous metropolitan driving. Maximum continuous input torque ratings reach 245 lb-ft at 3,200 RPM for fleet vehicle use. Cooling system circuits disperse 415 BTU per minute through external oil coolers. Mechanical gear reductions sequence through 4.77:1 first, 3.00:1 second, 1.96:1 third, 1.32:1 fourth, and 1.02:1 fifth.

Front Halfshaft Output Standards

The unit features dual 24-spline differential side gears machined for direct mating to original equipment front drive axles. Structural differential gears hold 1,150 lb-ft static torque during sudden traction recovery events. Axle seal face runout measures within 0.0013 inches on precision dial indicators.

Operational Protocols Service Rules

Technicians must clear TCM adaptation memory and perform factory learn drive sequences prior to regular fleet route dispatch. This transmission is not engineered for track drag racing, extreme vehicle suspension modifications, or commercial towing exceeding factory gross combination weights.

• Inspect external transmission cooler lines and wiring harness plugs every 50 hours
• Drain transmission fluid and wipe clean pan magnetic collection points every 30,000 miles
• Replace transmission fluid with approved JWS 3309 fluid specification every 12 months

Standard Crate Fleet Manifest

Protected by a 3-Year / 100,000-Mile commercial fleet warranty contract, this unit delivers commercial powertrain dependability. Each container houses a remanufactured front-drive transmission, dynamic-tested torque converter, new cooler line clip seals, and an authorized dyno validation test sheet.