Ultracool Naked Side Mount Oil Cooler - Harley Touring Softail Dyna
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 Naked Side Mount Oil Cooler is a versatile solution designed to significantly reduce oil temperatures across a wide range of Harley-Davidson Touring, Softail, and Dyna models. It's engineered to drop oil temps by up to 50 degrees, ensuring your V-twin engine maintains an optimal operating range of 200–230°F, crucial for protecting against heat soak and extending engine life.
Why riders pick this
- Drops oil temperature up to 50 degrees for engine longevity
- Maintains optimal oil operating range of 200–230°F
- Features a dual-pass aluminum heat exchanger with turbulators
- Thermostat-controlled dual fans provide 220 CFM airflow
- Waterproof IP68 sealed fans and connectors for reliability
- Broad fitment for Harley Touring, Softail, and Dyna models
For riders who push their V-twins hard or regularly encounter high-temperature conditions, an effective oil cooler is a game-changer. This Ultracool system provides active cooling, preventing your engine from reaching detrimental temperatures and ensuring consistent performance. The "Naked" design means no external covers, allowing the functional aesthetics of the cooler to stand out.
Active Cooling for Broad V-Twin Fitment
- Features a high-efficiency dual-pass aluminum heat exchanger with turbulators
- Equipped with thermostat-controlled dual fans that activate at 210°F and shut off at 185°F
- Fans provide 220 CFM airflow, ensuring robust cooling performance
- Includes black nylon-coated stainless steel braided oil lines with AN6 fittings
- Waterproof IP68 sealed fans and connectors ensure reliability in all conditions
Universal Design and Easy Integration
This Ultracool Naked Side Mount Oil Cooler is designed for broad compatibility, fitting Harley-Davidson Touring models from 1984–2016 (including 2014–2016 Twin Cooled), Softail models from 1985–2017, and Dyna models from 1990 and newer. It's engineered to mount cleanly to common 1 1/4" or 1 1/8" frame tubes. The plug-and-play wiring harness connects to your battery under the seat, simplifying installation, and an LED indicator light confirms when the fans are operating. An oil line fitting wrench and detailed instructions are included to assist with setup.
Specifications
- Brand: Ultracool
- Manufacturer Part #: SMT-4
- Style: Naked side mount (no covers)
- Frame Compatibility: 1 1/4" or 1 1/8" frames (Touring/FXR)
- Dimensions: 11 in L × 9 in W × 6 in H
- Weight: 8 lbs
Common questions
What Harley models does this Naked Side Mount Oil Cooler fit?
This cooler fits Harley-Davidson Touring models 1984–2016 (including 2014–2016 Twin Cooled), Softail models 1985–2017, and Dyna models from 1990 and newer. It's designed for 1 1/4" or 1 1/8" frame tubes.
Does this cooler come with everything needed for installation?
Yes, the kit includes a plug-and-play wiring harness, oil lines, an oil line fitting wrench, and detailed instructions to facilitate a complete installation.
Will this oil cooler change my bike's appearance significantly?
The "Naked" design means this side-mount oil cooler does not include external covers, allowing the aluminum heat exchanger and fans to be visible. This provides a functional, performance-oriented aesthetic.
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 | 56-7228 |
| WEIGHT | 8.0 lb |
