M8 Softail Oil Coolers

$ 549.99 USD

**Covered versions do not fit on Softail ST models (must use Naked version)


The M8 engines come with oil coolers that circulate oil to the heads and the majority of the oil returns to the stock oil cooler.  The stock oil cooler simply is not enough to keep the M8s from overheating in traffic and city riding.  Unlike our UltraCool Oil Coolers for the Twin Cams that replaces a stock oil cooler, our Side Mount UltraCool Oil Coolers for the M8s work with the stock cooler to cool all of the oil.  This works incredibly well and with a FLO Oil Filter our 3.0 UltraCool Oil Coolers give the M8 engines the performance of a FULLY liquid cooled!

UltraCool is back and better than ever with its new M8 Softail Oil Cooler, The 3.0! Some cool new features including:

  • Fits Softail Milwaukee 8 Frames 2018-Current
  • Side Mount on Down Tube
  • Beautiful Chrome or Powder Coated Black Grill Cover hide and protect the heat exchanger and fans.  "Naked" (no covers) version does not have a cover or grill
  • 3.0 Oil Adapter and Thermal Switch with waterproof connectors automatically turns on the powerful dual fans when your oil reaches 210 degrees and they stay on until the oil is cooled to 185 degrees. UltraCool's goal is to keep your oil at the optimal temperature of between 200 and 230 degrees.
  • 3.0 Specially designed aluminum heat exchanger with turbulators for maximum heat dissipation
  • 3.0 Sealed Waterproof IP68 Dual Fans producing an amazing 220 CFM of airflow
  • 3.0 plug and play wiring harness with relay and waterproof connectors that all connects to the battery under the seat for simple installation.
  • 3.0 Black nylon coated stainless steel braided oil lines with AN6 fittings.
  • 3.0 L.E.D. indicator light indicates when the fans are operating.
  • LED mount included in kit.
  • Special designed Oil Line Fitting Wrench and detailed instructions included.


M8 Softail 18-Current

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