4-Into-5 Speed Stainless Transmission Plate

Running a 4-speed in a 5-speed world? We got you. Our 4 into 5 Speed Transmission Plate lets you mount a traditional 4-speed transmission into Softail and Fat Boy frames built for 5-speed bolt patterns—perfect for Evo Big Twins from 1986–1999 and most aftermarket frames from the same era.

Whether you’re doing a period-correct build or just want that 4-speed feel in a newer frame, this plate makes the swap smooth.

Don’t forget to grab one of our Transmission Mounting Bolt Kits to complete your setup.

Made from stainless steel with a tumbled finish

Made in the USA

In some cases you may have to open up your 5th bolt mount - sought an 1/8" to get the bolt in.