Calibrated for 3.7L SH-AWD torque demands, the Acura MDX 2007 automatic transmission 5-speed BYFA remanufactured gearbox sustains high acceleration loads without shift flares or converter slip. The higher output of the 3.7-liter engine increases mechanical stress on the first and second gear clutch drums, causing original BYFA units to slip between shifts and burn transmission oil. This remanufactured unit incorporates updated high-strength clutch drums, recalibrated valve body accumulator circuits, and brand-new bonded rubber pistons throughout the transmission case.

Every linear solenoid undergoes flow bench testing across cold and hot temperature ranges to verify correct millisecond response times during shift transitions. The Super Handling All-Wheel Drive (SH-AWD) transfer case mounting face is precision-checked for perpendicularity, ensuring leak-free sealing with the front transfer gear assembly. A completely remanufactured torque converter includes new bearings and an upgraded lockup damper assembly that absorbs engine torsional vibration before it enters the transmission input shaft.

Technical Specifications of Acura BYFA Transmission

- Reinforced High-Torque Clutch Drums: Heavy-gauge steel drums resist fatigue cracking under 3.7-liter engine acceleration.
- Bonded Rubber Hydraulic Pistons: High-temperature molded seals maintain clamping pressure without tearing or pressure bleed-off.
- Upgraded Valve Body Accumulators: Restores positive clutch apply speed, eliminating the second-to-third gear shift flare.
- SH-AWD Transfer Case Interface: Machined transfer case mounting boss maintains seal alignment with front transfer gears.
- Hot-Fluid Dyno Verification: Tested under loaded engine simulations up to 190 degrees Fahrenheit to confirm hydraulic stability.

Hydraulic Precision & Clutch Pack Endurance

Engineered for high-output luxury crossovers, this 5-speed transmission restores crisp shift performance with updated internal metallurgy.

- Upgraded bonded rubber clutch pistons eliminate seal lip roll, maintaining full clamping force across all five forward gear sets.
- Recalibrated accumulator valve springs cushion shift transitions, protecting drive axles and differential splines from driveline shock.
- Vacuum-tested valve body bores prevent line pressure dropouts, keeping torque converter lockup smooth during high-speed cruising.
- Dynamic balancing of the torque converter eliminates engine idle vibrations and protects the front pump bronze bushing.

Chassis Integration & Fluid Specifications

Compatible exclusively with the 2007 Acura MDX featuring the 3.7-liter V6 and SH-AWD drivetrain, this unit installs into the front subframe using factory engine mount locations.

Commercial Warranty Protection & Core Terms

- Commercial repair facilities receive 3-Year or 100,000-mile nationwide warranty coverage covering internal mechanical components.
- Core credit requires return of an identical rebuildable BYFA casting with original torque converter and solenoids installed.

Flush the radiator transmission cooler core with pressurized solvent, replace the external fluid filter, and refill the transaxle with genuine Acura ATF Type 3.1 or DW1. Reset the vehicle transmission control module shift adaptives prior to road testing. Order the Acura MDX 2007 automatic transmission 5-speed BYFA remanufactured unit from Mulmotor.com for guaranteed factory-fresh units, complete manufacturer warranty coverage, and dedicated commercial equipment support.