Jasper Engines & Transmissions, the nation's leader in remanufactured drivetrain components, offers the following transmission to its remanufactured lineup.

The Ford/Aisin AF21, also known as the TF-81SC front-wheel drive transmission, can be found in the following 2005-present vehicles:

• Ford Five Hundred

• Ford Fusion

• Mercury Montego

• Mercury Zephyr

• Lincoln MKZ

• Mazda 3

• Mazda 6

JASPER's most significant upgrades to the AF21 involve seven problem areas within the valve body.  These areas have lead to valve body failures causing harsh shifts, burned clutches and forcing the transmission into "fail safe mode".  These areas are 100% reamed and upgraded to hard-coat anodized valves that are wear resistant and have more sealing contact area to minimize leakage.  These updated valves include:

• B1 Clutch Control

• C1 Clutch Control

• C2 Clutch Control

• C3 Clutch Control

• 2 Solenoid Modulators

• PR/Boost

In addition, the TCC and secondary regulator valve body sections are reamed and upgraded to hard-coat anodized valves that are wear resistant and have more sealing contact area to minimize leakage, TCC slip and overheated fluid.

The solenoid bushings of the AF21 are 100% replaced.  PTFE material within the solenoid bushings absorb small contaminants, and causes the bushing clearance to diminish, resulting in harsh shifting.

JASPER also addressed various shift complaints caused by worn accumulator bores within the AF21.  The accumulator pistons are replaced with upgraded, anodized aluminum with annular grooves that improve piston centering, preventing wear and thermal expansion-related leakage.

Every JASPER remanufactured transmission is subjected to strict, high-quality processes:

• Disassembly, meticulous inspection and cleaning of components.

• All new and remanufactured parts are carefully inspected for correct tolerances to assure dependability.  

• JASPER's research and product development ensures inherent problems in OEM design are corrected.

• Dynamometer testing of every domestic automatic transmission simulates in-vehicle operation to assure trouble-free product results.

• An available Premium Service Plan offers customers even greater value.

Each transmission is covered by JASPER's 3-Year/100,000 mile nationwide transferable parts and labor warranty.  Full warranty disclosure is available on our web site or upon request.