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Take the hassle out of plumbing your transmission lines with our selection of transmission line adapter fittings. Whether you want to upgrade your OEM lines to aftermarket...
Take the hassle out of plumbing your transmission lines with our selection of transmission line adapter fittings. Whether you want to upgrade your OEM lines to aftermarket stainless steel or add a separate transmission cooler, we’ve got the transmission line adapter fittings to get the job done right. Choose from a huge variety of fitting sizes and attachment styles. We carry adapter fittings from Fragola, Derale, Russell, TCI, Be Cool, Dorman, and more. Find the right transmission line adapter fittings for your project at Summit Racing today!
Take the hassle out of plumbing your transmission lines with our selection of transmission line adapter fittings. Whether you want to upgrade your OEM lines to aftermarket stainless steel or add a separate transmission cooler, we’ve got the transmission line adapter fittings to get the job done right. Choose from a huge variety of fitting sizes and attachment styles. We carry adapter fittings from Fragola, Derale, Russell, TCI, Be Cool, Dorman, and more. Find the right transmission line adapter fittings for your project at Summit Racing today!
Showing In Stock Items. Show All 5 Items.
Oil Cooler Connector, Steel, Zinc Chromate Finish, Ford, Mercury, Each
Part Number: RNB-800-617
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Transmission Cooler Line Connector, Steel, Natural, 9/16-18 in. Male Threads, 3/8 in. Quick-connect, 4T65E, Buick, Chevy, Pontiac, Saturn
Part Number: RNB-800-614
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Fitting, Transmission Line Adapter, 1/4 in. NPT to 3/8 in. Tube, Each
Part Number: RNB-800-610
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Transmission Line Connector - Tube Size 1/2 - Thread 9/16-18 UNF
Part Number: RNB-800-619
Not Yet Reviewed
Estimated Ship Date: Monday 1/19/2026
Estimated Ship Date: Monday 1/19/2026
Transmission Connector for 5/8 In. Tube 7/8-14 UNF
Part Number: RNB-800-613
Not Yet Reviewed
Estimated Ship Date: Feb 6, 2026 if ordered today
Estimated Ship Date: Feb 6, 2026 if ordered today
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