6HP19 2006-2008 Audi A6 Quattro 4.2L AWD/4WD – Remanufactured 6-Speed Automatic Trans

Description

During grueling multi-stop executive shuttle routes requiring frequent highway merges and heavy passenger loads, internal clutch packs sustain 290 PSI clamp pressures with total fluid stability through the Audi 6HP19 Automatic Transmission engineered for 2006 to 2008 Audi A6 Quattro 4.2-liter V8 all-wheel-drive platforms. This unit neutralizes converter clutch shudder and restores instant shift execution.

Engineered with a reinforced die-cast aluminum casing, this drivetrain housing resists torsional deflection under high V8 torque output. The remanufactured valve body features hard-anodized Sonnax sleeves inside critical bore channels to stop fluid leakage and pressure drops. Exterior dimensions include push-lock transmission cooler fittings, a 9.25-inch torque converter bolt circle, and an unladen dry weight of 172 lbs. Total transmission fluid capacity holds 9.8 quarts of synthetic transmission fluid.

Key Features of Audi 6HP19

Commercial transportation fleets buy Audi 6HP19 automatic transmission units to eliminate unexpected vehicle downtime and restore factory driveline performance. Every remanufactured unit undergoes loaded dynamometer spin testing to confirm electronic solenoid calibration and internal hydraulic pressure regulation.

• 250 PSI main line pressure calibration secures maximum clutch pack clamp force under full V8 acceleration.
• 6 forward computer-managed gear ratios provide rapid torque delivery from dead stops through highway cruising.
• 6 carbon-metallic friction discs in forward packs withstand extreme thermal loads without premature glazing.
• 0.0016-inch planetary gear tooth lash tolerances eliminate gear whine across all vehicle speed ranges.
• 172 lbs bare casing weight fits OEM vehicle subframes without requiring custom mounting brackets.
• Pulse-width modulated solenoids react within 38 milliseconds to deliver rapid gear transitions under load.
• Precision balanced torque converter dampens V8 crankshaft harmonics before reaching the all-wheel-drive gear train.

Dynamic Torque Hydraulic Limits

Operating line pressures range from 225 to 295 PSI to maintain clutch pack lockup under high V8 engine torque. Gear multiplication ratios feature a 4.17:1 low gear for swift vehicle launches, stepping down through intermediate ratios to a 0.69:1 overdrive gear. Continuous input torque ratings peak at 340 lb-ft at 4,000 RPM under severe commercial fleet service. External cooler circuits radiate 460 BTU per minute of heat energy, maintaining fluid sump temperatures between 165°F and 195°F.

Integrated Quattro Spline Architecture

The rear output shaft connects to the central Torsen differential unit via a 28-spline hardened steel shaft. Total indicator runout across the companion flange measures less than 0.0015 inches to prevent high-speed driveline vibration. The mechanical parking pawl locks against 1,300 lb-ft of reverse driveline torque to secure loaded vehicles on steep ramps.

Electronic Shift Maintenance Schedule

Fleet technicians must perform TCM electronic adaptation procedures after installation to calibrate solenoid pressure cycles to remanufactured clutch tolerances. Periodic transmission fluid sampling protects sensitive valve body components from premature wear. This remanufactured transmission is not engineered for competitive quarter-mile drag racing, aftermarket supercharger setups, or towing loads beyond vehicle gross vehicle weight ratings.

• Check transmission fluid level through the overflow inspection port each shift during initial break-in.
• Drain transmission fluid and replace the pan filter element every 30,000 miles of commercial operation.
• Inspect external transmission oil cooler lines and rubber mounting hardware every 12 months for signs of fatigue.

Quattro Fleet Warranty Manifest

This remanufactured transmission carries a 3-Year / 100,000-Mile commercial warranty covering gears, shafts, and hydraulic control components against defect. The crated package contains one remanufactured transmission, a computer-balanced torque converter, replacement cooler line seals, an installation manual, and a signed dynamometer inspection sheet.