BD Diesel 1030311F Performance Transmission 1991-1993 Dodge 518 4WD with Heavy Duty Pan

The BD Diesel 1030311F is a fully remanufactured performance automatic transmission engineered specifically for 1991-1993 Dodge trucks equipped with the 518 (A618) transmission and four-wheel drive. Designed to handle significantly more power and torque than the factory unit, this transmission is ideal for modified diesel trucks that have exceeded the capabilities of the stock drivetrain.

Performance Enhancements:

• Handles up to 300 percent more power and torque than stock transmission
• Up to 80 percent higher clutch apply pressures for improved holding power
• Pressure increase starts at lower RPMs and lighter throttle input
• Fully rollerized geartrain with Torrington bearings replacing thrust washers
• Added heavy-duty clutches with up to 25 percent more friction material
• High temperature/energy Raybestos performance band
• New design valve body with revised oil circuits for improved fluid flow

Upgraded Internal Components:

• New input shafts and hub for increased strength
• Machined billet forward pressure plate, overdrive brake plates, and direct clutch piston
• Billet band strut and anchor for enhanced durability
• Billet dual ring accumulator piston
• Drilled intermediate shaft for improved lubrication
• Modified manual valve for lubrication in all gear positions
• All new bushings throughout
• Upgraded governor solenoid with twice the burst pressure of stock
• Cooler line case saver included in every transmission

Heavy Duty Transmission Pan:

• BD rigid aluminum construction reduces case flex and internal oil leakage
• Heat-dissipating fins help maintain optimal operating temperature
• Adds 1 quart extra fluid capacity for improved cooling
• Magnetic drain plug captures metal particles

Additional Features:

• Auxiliary full-flow filter kit included for added protection
• Each transmission is dyno tested before shipping
• Maintains light throttle shift firmness with no shuttle shifting issues
• Every unit arrives ready to install with all necessary components

Warranty Coverage:

• Parts: 36 months or 150,000 miles
• Labor: 12 months or 24,000 miles
• Not warranted for racing or sled pulling applications
• BD torque converter must be installed at time of installation; use of third-party or OE converter will void warranty
• Remote filter required for warranty inspection

Important Compatibility Note: Some late 1993 models were equipped with the 47RH (3-pin) transmission instead of the 518 (2-pin). Verify your vehicle has a 2-pin connector at the valve body before ordering.

Estimated Installation Time: 7.5 hours

Emissions Compliance: This product does not require an Executive Order in California and is legal for sale and use in all 50 states as a replacement part.