Hayden Automotive 678 Universal Rapid-Cool Transmission Cooler Kit – 9.5 x 11 (Not OE Replacement)
- £85.62
- £85.62
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Description
xOverview
The Hayden Automotive 678 Universal Rapid-Cool Transmission Cooler is designed as a versatile add-on cooling solution for diverse vehicle setups. Built with a compact plate-and-fin design, it concentrates heat rejection where you need it most, while keeping the installation footprint manageable. This kit is explicitly an add-on cooler and is not intended as a direct replacement for the factory OE cooler.
What’s included
- Cooler body with the patented Flow Path Design
- 3/4 inch to 11 inch hose connections with secure 19 millimeter hose barb fittings
- Complete mounting hardware and fittings for simple installation
Key design benefits
- Patented internal turbulation enhances heat transfer while limiting pressure drop
- Compact form factor measures 3/4 inch x 11 inch x 9-1/2 inch, helping it fit in tighter engine bays
- Quality plate-and-fin construction balances durability with efficient cooling performance
Where it fits and what it can support
This universal cooler is suited for pickup trucks, vans, class C motor homes, and travel trailers up to 24 feet long. It pairs well with towing scenarios that demand steady cooling as loads climb, while the GVWR can be accommodated up to 24,000 pounds and towing up to 5,000 pounds, depending on your vehicle’s configuration.
Real-world use cases
- Hauling gear on a weekend trip with a trailer up to 24 feet, where steady transmission temperatures matter during climbs
- Day-to-day use in heavy traffic or hilly terrain, where added cooling helps maintain stable transmission temps
- Upgrade to manage heat during extended idle or slow-speed towing scenarios common in camping or construction work
Installation and expectations
Designed for straightforward mounting, the kit includes all necessary hardware for a secure, leak-free setup. While it enhances cooling capacity, individual results depend on the vehicle, towing conditions, and installation quality. Consider this kit as a practical add-on option for improved heat rejection rather than a guaranteed outcome.
FAQ
Q: What vehicles is the Hayden 678 Rapid-Cool compatible with?
A: Designed as an add-on for pickups, vans, Class C motorhomes, and travel trailers up to 24 feet, with GVWR up to 24,000 lb.
Q: Is this cooler a direct OE replacement?
A: No. This is an add-on rapid-cooler kit intended to complement the factory cooling system.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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