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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 30 Items.
Earl's Performance transmission cooler line adapters make your plumb job easier. Integrating into the transmission and adapting to AN lines allows additional tunnel clearance and freedom that the original hard lines cannot. These adapters are available for many plumbing situations and custom applications. They're machined from high-quality materials, including nickel plated steel or billet aluminum with a black anodized finish, and have high-pressure capabilities. Order the adapter size and configuration needed for your application.
( 33 )
$19.60
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$70.79
On Sale
ICT Billet transmission line adapters assist in plumbing your GM transmission. Available in a choice of sizes, these aluminum fittings make it easy to combine different types of lines. Order the adapters that are compatible with your specific applications.
( 52 )
$43.99
$10.99
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$43.99
Russell Transmission fittings are designed to replace OEM adapters in TH350, TH400, 700R4, 4L80 and additional applications that utilize 1/4" NPSM threads. This will allow you to connect your braided line to your transmission case without cracking your transmission case . Available in -6 AN and -8 AN fittings.
( 56 )
$12.95
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$16.95
On Sale
When it comes to plumbing your transmission lines, Fragola Performance Systems offers the fittings you need to get the job done right. Fragola Performance Systems transmission line adapter fittings allow you to upgrade your OEM lines to an aftermarket style, such as stainless or nylon braided hose, and adapt them for use with your transmission. These AN to NPS fittings are offered in a choice of sizes to best suit your application.
( 26 )
$8.99
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$12.99
$8.54
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$12.34
Plumb your braided stainless transmission cooler lines with ease with Summit Racing™ transmission line adapter fittings. They feature straight threads instead of tapered so the chance of a cracked case is virtually eliminated.
( 42 )
$4.99
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$9.99
Bowler Performance transmission cooler manifolds are intended for aftermarket transmission coolers. Available in styles for coolers with -6 or -8 AN fittings, each manifold is crafted from aluminum and finished in a durable corrosion-resistant anodize. Connect to your transmission cooler lines with great looking Bowler manifolds. Choose the one designed for your transmission.
( 3 )
$84.99
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$115.99
Bowler Performance transmission cooler line adapters are made of aluminum with a black anodized finish. They fit any transmission port that is 1/4 in. NSPT and will convert to a -6 AN male fitting. Male straight pipe to male -6 AN fittings fit most common domestic transmissions, including: * Aluminum Powerglide 350 * 350C * 200 * 200-4R * 700-R4 * 4L60E * 4L65E * 4L80E 1991 - 1996 * Will fit all 4L80E front cooler line ports; the rear port on 1996+ requires Bowler's special 4L80E fitting * AOD * AODE * 4R70W * Will fit other items where you require a 1/4 in. NSPT to be converted to a -6 AN male fitting. Package includes two fittings and brass washers to seal. Bowler recommends using PTFE paste when installing. *The buyer is responsible to determine which you need, remove the stock adapters and measure the diameter of the threads. If measurement is 0.5568 in. they are 9/16 in.-18. If they measure 0.521 in., the 1/4 NSPT option, which is the most popular, is required. * Recommended for aftermarket applications. Not Recommended for OE vehicles due to the type of lines, this is intended for aftermarket -6 AN lines.
( 1 )
$46.99
Summit Bucks
Sonnax cooler line repair kits allow case salvage without transmission removal. A common complaint in late-model Chrysler rear-wheel-drive units is a cracked and/or leaking case caused by installing the cooler lines. The tapered threads and the lack of a stop on the OE cooler line fitting can load the case and create a fracture, resulting in leakage that may require replacing the case. Sonnax kits feature adapters that seal on the leading edge, preventing fluid from reaching the fitting threads and crack. The fittings have straight, not tapered threads, to prevent the crack from spreading. A special tap tool for case threads is also included in the cooler line repair kits.
( 7 )
$93.88
Simplify your transmission cooler installation by using TCI transmission cooler line fittings. These cooler line fittings are offered in various thread sizes and configurations to adapt your existing transmission lines to the transmission cooler. These line fittings are manufactured from durable material and meet or exceed OEM standards for quality.
( 9 )
$45.95
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$67.95
Derale Performance transmission line fittings will help you adapt your existing transmission lines to the transmission cooler. Made of durable aluminum, these fittings are corrosion-resistant for a lifetime of good use.
( 44 )
$8.59
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$23.43
Advance Adapters transmission cooler line adapters make your plumb job easier. Integrating into the transmission and adapting to AN lines allows additional tunnel clearance and freedom that the original hard lines cannot. These adapters are available for many plumbing situations and custom applications. They're machined from high-quality materials and have high-pressure capabilities. Order the adapter size and configuration needed for your application.
( 6 )
$7.40
On Sale
DeWitts transmission cooler adapter fittings are offered in several styles and sizes to accomplish your connections securely and successfully. They are precision machined to ensure precise thread engagement from quality, lightweight aluminum or steel, then nickel or zinc plated to provide a lasting finish that is corrosion resistant. For a positive seal, adapt connections to power steering boxes or from newer style quick-connect lines to older inverted flares and fittings with DeWitts transmission cooler adapter fittings.
Not Yet Reviewed
$7.99
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$9.99
$7.19
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$8.99
S.U.R.&R. transmission oil cooler line adapters are designed to replace or make repairs on 5/16 in., 3/8 in., and 1/2 in. lines. They're perfect for fixing damaged lines which have rusted, cracked, or developed pinholes. The steel pipes are available in a variety of fitting sizes and attachment styles, straight or with an angled bend.
( 5 )
$19.99
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$29.99
Scott Drake offers transmission oil cooler fittings for a variety of vehicle and engine applications. These replacements are machined from brass and screw into the radiator oil cooler, connecting it to the transmission oil cooler lines. Scott Drake redefines quality reproduction and aftermarket parts for early to late model Mustangs. Check your application for proper fitment.
( 5 )
$13.01
Summit Bucks
ACDelco automatic transmission oil cooler end fittings are used in the transmission cooling circuit to connect components and lines. They're manufactured to original equipment specifications for accurate fit and performance. The fittings are available in a variety of materials, styles, and sizes. Enjoy the quality, reliability, and durability of factory replacement parts; order the fittings recommended for your vehicle.
( 5 )
$10.99
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$20.99
Dorman transmission line connectors are designed to thread-in your automatic transmission case and allow you to connect to an external cooler. They're manufactured from high-quality material that meets or exceeds OEM standards. Available in different thread sizes and configurations, Dorman transmission line connectors will help get you connected. Order the adapters compatible with your application.
( 17 )
$5.99
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$36.99
ATI has filled a needed void with their 1/4 in. NPSM (straight) thread transmission cooler line fittings. Using the proper straight thread fitting can prevent the case cracks associated with trying to install tapered pipe thread fittings—and quite possibly save you hundreds of dollars in repairs. ATI cooler line fittings are machined from high-quality aluminum, then anodized for a long-lasting, corrosion-resistant finish. They include nylon sealing washers and are available in -6 AN and -8 AN sizes. Be sure to use with PTFE-lined braided hose.
( 6 )
$9.99
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$26.99
Be Cool fittings will help you to adapt your existing transmission lines to the transmission cooler in a Be Cool radiator. Made of durable brass, these fittings are corrosion-resistant for a lifetime of good use.
( 10 )
$4.99
For a great looking engine bay and a properly plumbed street or race system, Redhorse Performance 8248 Series tee adapters are an ideal choice. These RHP lightweight aluminum fittings are available in several sizes and anodized colors to complete your custom job with precision and style. The 8248 Series are AN male to AN male with NPT port tee adapters. Choose the best fit for your project.
Not Yet Reviewed
$30.70
These Hayden Automotive transmission line fittings will help you adapt your existing transmission lines to the transmission cooler. Made of durable brass, these fittings are corrosion-resistant for a lifetime of good use.
( 26 )
$9.99
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$20.99
Mopar Replacement quick connect transmission fittings are OE replacements you can count on to fit and function as expected. These Mopar fittings are made from quality, long-lasting materials to repair and restore leak-free performance in your Chrysler, Dodge, Jeep, and Ram vehicles.
( 1 )
$27.99
Transmission oil cooler fittings are used in the transmission cooler circuit to connect components and lines. All products from Four Seasons are engineered and tested to provide years of trouble free operation. Backed by over 50 years of car parts experience, fix it once and fix it right with Four Seasons.
( 4 )
$4.99
On Sale
Fleece Performance transmission cooler line fittings can assist you with installation or repairs. The special Setrab adapters enable you to correctly plumb your Allison transmission cooler lines or nix unwanted leaks. Order the size and configuration needed for your application.
( 1 )
$19.99
$16.99
On Sale
Griffin transmission cooler line adapters offer a quick-connect to cooling performance. These automatic transmission adapter fittings feature steel construction, a corrosion-resistant zinc finish, and quick-connect styling. Don't sweat the small stuff; Griffin keeps you cool with the correct accessories to make installation a breeze.
( 1 )
$30.00
$27.00
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