Ultracool M8 Chopped Oil Cooler - Touring `2017-2023 (chopped Guard)

Ultracool M8 Chopped Oil Cooler is an auxiliary cooling system for Milwaukee-Eight Touring engines that works alongside the stock cooler to maintain optimal oil temperature in traffic and city riding. Fits 2017-2023 FLH frames with a Harley "Chopped" Engine Guard or similar-height aftermarket crash bars, mounting to the down tube with sealed dual fans that activate at 210°F.

Features

• Dual-pass aluminum heat exchanger with turbulators
• Sealed IP68 dual fans produce 220 CFM airflow
• Oil Adapter and Thermal Switch auto-engage fans at 210°F, shut off at 185°F
• Black nylon-coated stainless steel braided oil lines with AN6 fittings
• Plug-and-play wiring harness with relay and waterproof connectors
• LED indicator light shows when fans are operating
• Oil Line Fitting Wrench and detailed instructions included

Specifications

• Brand: Ultracool
• Manufacturer Part #: SMT8-5N
• Length: 11 in
• Width: 9 in
• Height: 6 in
• Weight: 8 lbs

Fitment

Fits 2017-2023 Harley-Davidson FLH Milwaukee-Eight Touring models equipped with a stock HD "Chopped" Engine Guard or similar-height aftermarket crash bars. The "Naked" (no covers) version also fits inside the M8 CVO Road Glide Fairing Spoiler with no modifications.

Frequently Asked Questions

Does this replace the stock oil cooler?

No — it works alongside the stock cooler to supplement cooling. Together they keep oil at the optimal 200-230°F range, which the stock cooler alone cannot achieve in traffic.

Will this fit my Harley with aftermarket crash bars?

Yes, if your aftermarket bars are similar in height to the stock Chopped Guard. Verify your guard height before ordering.

How does the fan activation work?

The included Thermal Switch automatically turns on the dual fans when oil reaches 210°F and shuts them off when cooled to 185°F.

Is professional installation required?

No — the plug-and-play wiring harness connects directly to the battery under the seat for straightforward installation.

What comes in the box?

The cooler assembly, oil adapter, Thermal Switch with waterproof connectors, braided oil lines, wiring harness with relay, LED indicator light, fitting wrench, and detailed instructions.