This is where it all began for Bud & the OilBud™ cooler. Bud built this for his own Harley because of his history with experimental airplanes. Turns out he’s right, his motorcycle was running hot, so Bud used his knowledge of airplanes and crafted the OilBud™ oil cooler around that field of engineering.

  • Machined Adapter Plate
  • ST0017M Harley Softail 00-17 Machined (including CVO and non ABS)
  • STA0017M Harley Softail 00-17 Machined with ABS


The Harley Davidson Softail design that features the Polished Adapter Plate looks like a mirror on all sides!

  • Polished Aluminum Adapter Plate
  • ST0017P Harley Softail Polished (including CVO and non ABS)
  • STA0017P Harley Softail Polished with ABS

Black Powder Coated

The powder coated black is still the most popular.

  • Powder Coated Black Adapter Plate
  • ST0017B Harley Soft Tail Black Powder Coat (including CVO and non ABS)
  • STA0017B Harley Soft Tail Black Powder Coat with ABS

Product Quality

OilBud™ Coolers keep oil temps cooler and they are virtually undetectable. All coolers are made from 6061 T6 extruded aluminum. There are ridges on the inside of all the cooling passages for greater heat transfer. Fins are machined on the outer surface of the extrusion. This makes a huge cooling surface which is the reason it works in STOP AND GO TRAFFIC! The wall thickness is 3/32″. It is very durable. All cooler fittings are JIC/ORB (chromed where visible)

  • All cooler Hoses are high pressure braided stainless Teflon with brass JIC crimp on brass fitting. (chromed where they are visible).
  • All adapters are machined from 6061 T6 billet. O rings are used throughout, not leak prone gaskets. It is regulated; thermostat opens at 185º …fully open at 200º.

*The Softails are also available with ABS. Be sure to pay attention to your model number and install instructions!
*Please call (406) 457-2458 if you have any of the following aftermarket products:

Precision Machine Forward Controls
Medallion Gauges
Dakota Digital Gauges

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