Fan-Assisted UltraCools for M-8 and earlier
Harley would have everyone believe that with the M-8 it has addressed the notorious heat issues that have plagued its 45-degree V-twins since, well, forever. However, the reality is that while the M-8 is marginally better than the Twin Cam, which in turn was modestly better than the Evo, the fact remains that even after relatively modest rides you could fry eggs on those heads!
Enter into the search for cooling solutions the UltraCool range of fan-assisted cooling systems for Harleys, including M-8 models.
Sold by PC Racing, owner John 'JJ' Petchel says: "Harley's so-called 'liquid-cooled' engines only water- cool the exhaust ports on the engine. The stock cooling system simply is not enough to keep the larger M-8s from overheating in traffic and city riding.
"Adding a FLO oil filter and our 3.0 UltraCool oil cooler gives the M-8 engines the performance of a FULLY liquid-cooled engine."
There are UltraCool kits for a wide range of Harleys, including Touring, Softail, Sportster and even Dynas, plus Indian Motorcycle models and even S&S engines. Options include chrome or black radiators and horizontal or vertical mount radiator designs, depending on the application. There is even an option for use on non-liquid-cooled M-8 Touring bikes that have H-D lower fairings.
The version 3.0 UltraCool for FLH M-8 frames 2017-current dual liquid-cooled or non-liquid-cooled with lower fairings is a side mount "Naked" design (no covers) that occupies the space on the lower fairing air door.
A version 3.0 oil adapter and thermal switch with waterproof connectors automatically turns on the powerful dual fans when the oil reaches 210 degrees. UltraCool's goal is to keep the oil at the optimal temperature of between 210 and 230 degrees.
The 3.0 has a specially designed dual pass aluminum heat exchanger with turbulators for maximum heat dissipation, sealed, waterproof IP68 dual fans that produce an amazing 220 CFM of airflow and a plug and play wiring harness with relay and waterproof connectors that all connects to the battery under the seat for simple installation.
Additional features include black, nylon coated stainless steel braided oil lines with AN6 fittings; an LED indicator light that indicates when the fans are operating, with an LED toggle mount included in the kit. Black or chrome 1" clamp handlebar LED mounts are separately available; a specially designed oil line fitting wrench and detailed instructions are included.
PC Racing offers a one-year parts only warranty from date of purchase and 30-day "no hassle" return/exchange policy.
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