1991-1993 Cummins 518 Transmission (4WD) (1030311F)

Fits

Since the stock transmission is only engineered to handle the stock output of your engine and not a whole lot more, you may want to consider increasing the durability of your drivetrain. With this BD transmission kit, you will do just that and no longer have to worry about your transmission trying to keep up with the added power to your engine. With this package, you will also receive BD's heavy-duty transmission pan as well as an auxiliary transmission filter kit for added protection. 

Part Number: 1030311F

• All new bushings
• New design valve body
• Stock thrust washers replaced with roller Torrington bearings save governor solenoids and reduce friction
• Drilled intermediate shaft for increased lube
• Modified manual valve for lube in all positions
• 47RE transmissions upgraded with more rugged 48RE components
• New input shafts and hub
• Pan adds 1qt extra oil capacity
• Up to 80% higher clutch apply pressures over the stock unit
• Pressure increase starts at much lower engine rpm's and at lighter throttle pedal position movement
• Light throttle shift firmness is also maintained
• No shuttle shifting problems
• An upgraded governor pressure transducer (47RE/48RE)
• Upgraded governor solenoid - Twice the burst pressure than stock
• Cooler line case saver in every transmission
• Added heavy-duty clutches with up to 25% more material than stock
• Machined forward (rear) bevelled pressure plate
• Machined overdrive brake (front & rear) pressure plate
• Machined direct clutch (front) piston
• High temp/energy Raybestos band
• Billet band strut & anchor
• Billet dual ring accumulator piston
• BD auxiliary full flow filter kit for extra protection
• Fully rollerized geartrain
• Increase the durability of your drivetrain
• Revised oil circuits
• Handles up to 300% more power and torque than the stock transmission
• Extra clutches and stronger internals
• BD rigid aluminum heavy duty transmission pan
• Pan reduces case flex
• Pan reduces internal oil leakage
• Pan heat-dissipating fins keep the temperature down
• Pan magnetic drain plug
• Not warranted for Race or Sled Pull use
• Each transmission is dyno-tested

• 7.5 Hours
• Install - Click Here
• Auxiliary Filter Kit - Click Here

Parts Only - No Race abuse is covered.

• 36 Months
• 150,000 Miles
• Remote filter required for inspection with cooler flow rate in GPM at Oil/Air transmission cooler outlet.
• BD torque converter must be installed at the time of installation of the transmission - use of a 3rd party or OE converter will invalidate the transmission warrantySome later 1993 models came with 47RH (3-pin) transmission instead of 518 (2-pin). Confirm pin count of the plug going to valve body connector is 2.