Ultracool M8 Side Mount Oil Cooler - Gloss Black Harley Milwaukee-Eight Softail
About Ultracool
Ultracool parts and accessories are stocked at Vtwinbikers for Harley-Davidson and Indian Motorcycle applications. Every Ultracool item we list is new and sourced through authorized distribution. If you are not certain a part matches your year and model, use Shop by Bike or email our team before you order and we will confirm fitment first.
The Ultracool M8 Side Mount Oil Cooler in gloss black is specifically designed for 2017-2023 Harley Softail models with Milwaukee-Eight engines. Engineered to work alongside your stock cooler, this system ensures your engine oil remains in the optimal 200-230°F range, even during demanding city riding or in heavy traffic. Its dual sealed fans automatically engage to provide active cooling when needed.
Why riders pick this
- Auxiliary cooling for Milwaukee-Eight Softail engines
- Works with stock cooler to maintain optimal oil temperatures
- Dual sealed fans deliver 220 CFM airflow
- Automatic thermal switch for precise cooling activation
- Side-mount design with gloss black grill cover
- Plug-and-play wiring for straightforward installation
For Milwaukee-Eight Softail riders, managing engine heat is crucial for performance and engine longevity. The Ultracool M8 Side Mount Oil Cooler provides a robust solution, adding a secondary cooling circuit that actively dissipates heat. Its dual sealed fans are thermostatically controlled, kicking in automatically at 210°F to pull heat away from the oil, preventing performance loss and potential engine damage from excessive temperatures.
Enhanced Cooling for Softail Performance
- Dual-pass aluminum heat exchanger with turbulators for efficient heat transfer
- Sealed waterproof IP68 dual fans produce 220 CFM airflow
- Automatic thermal switch activates fans at 210°F and deactivates at 185°F
- Plug-and-play wiring harness with relay and waterproof connectors for easy battery installation
- Black nylon-coated stainless steel braided oil lines with AN6 fittings for durability
- Mounts on the down tube just below the top bar of full-size engine guards
Clean Integration, Powerful Results
This Ultracool M8 Side Mount Oil Cooler for Softails features a gloss black powder-coated grill cover, offering a sleek look that integrates seamlessly with your bike's aesthetic. The system is designed for straightforward installation, coming with a plug-and-play wiring harness that simplifies connecting to your battery. It's an essential upgrade for any Milwaukee-Eight Softail owner looking to protect their engine and maintain peak performance in all riding conditions.
Specifications
- Brand: Ultracool
- Manufacturer Part #: SMS8-1G
- Length: 11 in
- Width: 9 in
- Height: 6 in
- Weight: 8 lbs
Common questions
Will this oil cooler fit my specific Harley-Davidson Softail model?
This Ultracool M8 Side Mount Oil Cooler is designed for 2017-2023 Harley-Davidson Softail models with Milwaukee-Eight (M8) oil-cooled engines and full-size engine guards. Please use our Shop by Bike tool to confirm compatibility with your exact year and model.
Does this cooler replace my Softail's original oil cooler?
No, the Ultracool M8 Side Mount Oil Cooler is an auxiliary system. It works in conjunction with your factory oil cooler to provide additional, fan-assisted cooling, which is especially beneficial for keeping oil temperatures in the optimal range during heavy traffic or hot weather.
What is involved in the wiring installation?
The Ultracool M8 Side Mount Oil Cooler features a plug-and-play wiring harness with waterproof connectors. This design simplifies installation, allowing for a straightforward connection to your battery without complex electrical work.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Ultracool |
| TYPE | Engine |
| SKU | 56-7214 |
| WEIGHT | 8.0 lb |
