Product Description
Fits: Trucks & vans · GVW to 26,000 lbs
Universal transmission oil cooler (Hayden # 1405) for trucks and vans up to 26,000 LBS gross vehicle weight. It is sized for heavy duty towing up to 10,000 pounds, class A motor homes, large travel trailers and 5th wheel trailers.
Specifications
| Size | 3/4'' x 10'' x 15-7/8'' |
|---|---|
| Gross vehicle weight | to 26,000 pounds |
| Towing | up to 10,000 pounds |
| Hayden part number | OC - 1405 |
Why add a cooler
A cooler helps keep the transmission from overheating when towing boats, campers or trailers, carrying extra passengers or baggage, driving in stop-and-go traffic, climbing steep grades or driving in hot weather. It protects against burnout and boilover and installs in approximately 30 minutes.
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Inlet/outlet size problem
Used this cooler as an addition to my F250 pickup transmission. The cooler installed fine, but my temps actually went up about 15 degrees during normal driving. After evaluating the problem I discovered that the cooler inlet and outlet are crimped smaller than 3/8. The actual size of the connectors is .280 inches internally, which causes the fluid to slow down and pump pressure to stall inside of the cooling circuit. I’ll be installing a factory cooler this week and this one will sit on a shelf.
