ZF6 Adapters

We offer Cummins swap adapters for the Ford diesel ZF6 transmissions used in F250,350,450 and 550 from 1999 to 2008 . These come in 3 bell-housing types , but we currently only offer the following models. and the 6.0/6.4 version from 03+.

The Adapter for 7.3 Zf6 models (from 99-02 Ford trucks) requires and comes with a crank spacer and longer flywheel bolts. It also comes with Starter bolts and Transmission bolts . Uses the 6.0/ 6.4 or 6.7 power-stroke starter . Some modifications are needed as shown on this page. This Can be used with a Flywheel like a LUK LFW300 (modified for correct 6303 pilot bearing) and stock 7.3 clutch LUK 07168  , upgrade LUK 07181   Cerametallic (300ish Hp) or a clutch / flywheel kit from SOUTHBEND 

The Adapter for the 6.0 and 6.4 Zf6 models (from 03+ Ford Trucks) Comes with a Needed starter spacer and bolts . Uses a stock 6.0/4 starter . No modifications to the engine / starter or transmission required Must be used with a Flywheel like a LUK LFW300 (modified for correct 6205 pilot bearing) and stock 7.3 clutch LUK 07168  , upgrade LUK 07181   Cerametallic (300ish Hp) or a clutch / flywheel kit from SOUTHBEND 

7.3 pattern

You can buy LUK brand clutches and flywheels from RockAuto.com Most engine machine shops will install the pilot bearing for $50-$75. If you don’t have old adapter mounting bolts we recommend buying flange head M12-1.75 x 40 MM grade 10.9 bolts .

6.0 / 6.4 pattern

These adapters will fit any 6BT/12v or 24v before 03 .. as well as 4bt engines. We offer both these Adapters to fit 03+ Cummins CR (common rail) engines also .

Our newest ZF6 6.0/4 adapters are compatible with the Keating Machine bypass / billet rear freeze plug. and 7.3 adapters can be used with a billet freeze plug SCHEID DIESEL 402F-PLUG