Ford c4 transmission cooler line fittings. 99 for stainless lines or $52. Aug 31, 2022 · 6AN Transmission Cooler Hose Kit Lines Fitting Kit 70" for GM Chevy 1996-2021 4L80E, for Ford C4-C6-AOD, for Turbo 350/400/200-200R4/700R4 4L60 4L60E 4L65E,Stainless Steel Braided Lines Explore our pre bent transmission lines for Ford Trucks 1973-79, Ford Bronco 1978-79. The fittings and adapters on the tranny look very similar to the ones connected directly to the radiator as pictured here. Peace of Mind for your cooler If you have a performance transmission in your car it most probably has a higher than stock line pressure. I first tried my original lines that were kind of all bent to hell, and I tried bending them more to try to make it work, finally said to hell with it and ordered some new ones from CJ's May 18, 2021 · Re: Transmission Cooling Lines - C4 by Wes » Mon May 24, 2021 3:13 pm If the cooler vertical you want the outlet at the top and inlet at the bottom. I prefer the prebent steel ones for some reason, I guess it just looks cleaner. The fittings are 1/4" pipe into the case and from the factory are 5/16" steel tube with double flare (like brake and fuel lines) on the end. Many shops will tell you 1/8 or 1/4 NPT will work but in reality, the case requires a special NPS straight thread with o-ring. I want to run rubber lines to aux cooler with proper line fittings from trans. Apr 12, 2022 · 6AN Transmission Cooler Lines 70 Inch, Stainless Steel Braided Hose Fitting Repair Kit for Turbo 350/400/200-200R4/700R4 4L60 4L60E 4L65E, for GM Chevy 1996-2021 4L80E, for Ford C4-C6-AOD Feature: 100% Brand New Direct replacement for proper fit and function every time. Universal, will work on many applications. Is it the same for 67? Mustang V8 C4 Transmission Cooling Line (1966) Installation Jan 9, 2009 · The transmission cooler has an external cold circuit bypass that doesn't allow the cold fluid to run through the cooler so the transmission fluid can run at a safe and constant operating temperature. Save time and money with DPP’s expert tips! Jul 9, 2025 · Sold 67-73 Mustang Fairlane Cougar C4, C6,FMX, Transmission Cooler Line Fittings US $11. What size are the fittings on the c4 trans? Dec 2, 2006 · Is there a fitting with the correct threads to fit the transmission? Also, just to help paint the picture for me, are you referring to the threads in the actual case of the transmission or the factory adapters that the hard lines would normally thread into? Jan 4, 2022 · 6AN 70" Transmission Cooler Hose Kit Lines Fitting Kit for GM Chevy 1996-2021 4L80E, for Ford C4-C6-AOD, for Turbo 350/400/200-200R4/700R4 4L60 4L60E 4L65E,Stainless Steel Braided Lines Buy part #359279-S Transmission Oil Cooler Line Fitting, brass for your classic vehicle from National Parts Depot. When I tried to take off one of the C4 transmission cooler line, it was so rusted that it twisted when I turned the nut. Buy 70" 6AN SS Braided Transmission Cooler Hose Lines,for 700R4 4L60 4L60E 4L65E 4L80E,Compatible with Ford C6/AOD & GM Chevy 1996-2021: Cooling Lines - Amazon. These preformed transmission lines replace the original transmission cooler lines and run from transmission to radiator following the factory routing. I need to replace it in order to replace the lines. Submitted on October 10, 2025 by Charles B. It emphasizes the importance of safety, proper installation techniques, and frequent maintenance practices to ensure optimal performance of Description C4 / C6 Automatic Transmission Radiator Cooler Line Adapter. If you race a Ford C-6, C-4 or GM TH-350, 400 or PG then you know the hassle of trying to adapt AN hose to the cooler fittings on the case. Teckpak cooling line fittings, Transmission cooling line fittings, transmission parts Aug 12, 2017 · Found this article on installation of transmission cooler lines for 66. Our replacement lines are engineered from factory original lines and Cnc manufactured for precision. Now I’m looking at what to replace it with. 🚗Package Include - AN6 flared to 1/4" NPT billet adaptors, fits most 700R4, TH350, TH400; Please check fitting size prior to ordering (Some are 1/4" and others 3/8");AN-6 flared to 3/8" NPT billet adaptors;90 degree AN-6 inverted flare to AN-6 flare billet adaptors; lines in the kit Jul 13, 2015 · Well I'm switch out my radiator to an aluminum ECP model and noticed that the steel lines connecting to the C4 transmission are rusting. KIT INCLUDES. Part # is M462GC. 5、Our company focuses on the field of automotive supplies. 5 out of 5 stars ( 2 ) Mar 19, 2018 · I am working on installing new cooler lines on my 65 mustang with c4 transmission (po had started to install copper lines). If you add an external cooler, run the top outlet from rad to bottom of external and top outlet back to trans. And be careful to get it at the right Now available for late model Ford C4 transmissions with straight thread and washer seal. This 90 degree cooler line fitting will allow your transmission cooler line to connect to the transmission properly. From what I'm seeing Oct 15, 2024 · Learn how to perform a transmission cooler line replacement on your Ford Powerstroke. We carry adapter fittings from Fragola, Derale, Russell, TCI, Be Cool, Dorman, and more. Feb 22, 2022 · What is the correct size for a factory 6 cylinder C4 automatic transmission cooling line fitting. Stainless steel so no rust issues! Connects the transmission to the cooler located in the radiator. TCI Transmissions says they have special fittings, but they have been on back order for over a Year! Sep 14, 2017 · This makes sense with what came out of it, just trying to mate with a -6 for cooler lines. This one fits perfectly and the new transmission line I bought bolted right up. Find Parts and Accessories C4 transmission fittings KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! It is possible that with 5/16"F to 1/8"MPT 90 DEGREE SCREW IN COOLER LINE FITTING C4 C6 FORD GM ADAPTER you also need other C6 parts: These preformed transmission lines replace the original transmission cooler lines and run from transmission to radiator following the factory routing. If you have a performance transmission in your car it most probably has a higher than stock line pressure. All lines come Pre-Bent and flared with the correct threaded fittings which reduces Aug 26, 2025 · 6 AN stainless Steel Braided Hosewith Fittings For Ford C4 or C6. Shop pairs of original or stainless steel transmission cooler lines. Jul 16, 2011 · I am in the process of re-installing my engine/tranny and do not remember how the transmission cooling lines are to be routed. These handy adapters allow you to easily plumb in a transmission cooler or aftermarket transmission cooler lines. Gear up for your next trail ride with our C4 Cooler Line Adapter Fitting. 1 day ago · 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. Cooler line fitting for 1965-1981 Mustang, 1973-1977 Ford Bronco or any Ford model fitted with a C4 transmission. - NPT male to AN JIC male flare. Start your build today! Mar 6, 2014 · Ok, did a small bonehead thing today in preparing the car for the Las Vegas run next month. The actual line with the threads is leaking. Connection B 6AN JIC male flare. Shop Automatic Kits. Male 1/8" NPT to male 5/16 flare would make the connection to the rad. High-quality Universal Stainless Steel Transmission Cooler Hose Line Kit. Anyone know if the cooler lines are the same?I'll be pulling out the FMX 1964-65 Ford Mustang V8 C4 5/16″ Trans Cooler Lines 2pc, Stainless These preformed transmission lines replace the original transmission cooler lines and run from transmission to radiator following the factory routing. 99 Mon, Aug 04, 09:51 AM See original listing Jun 28, 2024 · This post provides a detailed guide on how to replace the transmission fluid cooler lines on a Ford truck, offering step-by-step instructions, necessary tools and materials, common trouble spots to watch out for, and pro tips for a successful DIY project. In the middle of replacing the rubber lines coming off the transmission cooler the PO installed, but did not take a pic or note to mark which lines from the transmission go to which connection on the Find Parts and Accessories c4 transmission line fittings KEYWORD, In Stock Filter Options, Vendor In Stock Filter Options and get Free Shipping on Orders Over $109 at Summit Racing! Jun 5, 2013 · Just finished the c4 pan gasket sealing episodelol and have one last drip, the hard lines that go from the transmission to the cooler. We offer a wide selection of new professional grade automatic parts designed for your vehicle. 15' FOOT OF -6 STEEL BRAIDED HOSE. This part is a pair of pre-bent transmission cooling lines which will fit all models of the 1960-1965 Ford Falcon & Mercury Comet equipped with a V-8 Engine and C-4 Automatic Transmission. Great fit and finish. Automatic Transmission Cooler Line Kit. This is on a 67 Coupe with 302 and C4. Thank you. Threads into the radiator and and the cooler lines 2 required per vehicle. These lines include the appropriate fittings with double-flared ends and the proper bends to make installation easy. The truck's past owner had switched to an aux cooler and I'm trying to Mar 19, 2016 · Replaced my radiator today but ran into an issue. Start your build today! Make sure you've got everything - upgrade to a complete rebuild kit today. Dec 3, 2021 · 4、The Transmission Cooler Line Repair Kit is a universal replacement for any use with AN6 adapter fitting. The other trans I have are the same thread just 1/8", so still looking to get the correct fitting. Jan 26, 2020 · The line with the "s" curve in it, mounts to the lower right radiator trans cooler port (sitting in the car looking forward) and the line with has a 90 degree bend and is straight in, mounts to the lower left radiator cooler port. Fits most C4 Transmissions Also fits 1970 and up C6 Transmissions 90-Degree angle Made of Brass Male: 1/8"-27 straight pipe Female: 5/16"-28 inverted flare The C4 transmission cooler lines consist of several key components, including the inlet line, outlet line, fittings, and clips. . A Mustangs, Etc. HELP!!! Discussion in ' The Hokey Ass Message Board ' started by loveoftiki, Jul 24, 2020. Is it safe to use a locktite thread seal or Sep 19, 2019 · Does anybody know what size fitting connects the trans cooler lines to the C4? I need to replace a line and will be using pre-fitted brake line available at the store. Now I need to get two 6AN to ? fittings to hook the lines up to the transmission Now available for late model Ford C4 transmissions with straight thread and washer seal. High-quality stainless steel replacements designed for long-lasting performance. Our replacement lines are engineered from factory original lines and CNC manufactured for precision. Not for use with stock copper/brass radiator. the transmission has 1/8" NPT thread and the Jul 24, 2020 · Hot Rods C4 front trans cooler fitting. Fits into the transmission in place of the factory trans coller lines so you can run AN style hoses. Product Overview: This 1/2-20 SAE to 1/4" NPT fitting gives you a leak-free, solid connection when pairing your C4 transmission to an aftermarket cooler or radiator. I saw some other guys bending the line to make it fit. Does anyone have a diagram or can explain how to install these lines. Oct 9, 2020 · Cooler Line Fitting 90-Degree C4 Transmission Mustang 1965-1981/ Bronco 1973-1977 Cooler Line Fitting at 90 Degrees for C4 Transmissions on all 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980 and 1981 Mustangs and all 1973, 1974, 1975, 1976 and 1977 Broncos. My Ford C4 transmission had the wrong fitting in the rear. They include the correct fittings, flares, and protective wrap (where equipped) and are designed to work with factory radiators and components . Our C4 cooler line kit is designed and made right here in the USA to fit your new or old style automatic transmission. For now, sticking with the stock style cooling for the C4 through the radiator. One per car, fits rear-most cooler port on transmission. 302, AC, 24" radiator other than stainless or not, they This pair of Transmission Cooling Lines (MUT1001-OE) from Classic Tube are made from OE-style steel. Choose from a huge variety of fitting sizes and attachment styles. They include the correct fittings, flares, and protective wrap (where equipped) and are designed to work with factory radiators and components. Transmission Cooler Lines For 64-65 Ford Mustang 6 Cylinder C4 w/o Fittings at Radiator 2 Piece Set Stainless. rad you should use SS or Alum. May 24, 2022 · PQY 6AN Transmission Cooler Lines Kit APPLICATION: Compatible with GM Chevy Transmission 4L80E TH350 TH400 4L60E 700R4 200-4R TR6060 Ford AOD 4R100 4R70W and C5 PACKAGE INCLUDE : 2x 70” Stainless Steel Braided Hose; 4x 90degree 6AN Female to 6AN Male Adapter Fitting; 4x 6AN to 1/4NPT Adapter Fitting; 2x 6AN to 3/8NPT Adapter Fitting; 2x 6AN to 1/4NPS Adapter Fitting. The adapter fitting that goes into the transmission on the outlet is cracked. com. I have an external transmission oil cooler and the lines also connect to the radiator. I just added one. Anyone have a link to the correct fitting or know the size? Jul 13, 2020 · Pulled out my c4 in my 68 mustang to replace a few seals. Get leak-resistant transmission cooler lines for Chevy, Ford, Dodge, and more. Braided Stainless Steel Outer & Polytetrafluorethylene (PTFE) Inner Hose (Rated at 2500 PSI)Aluminum Fittings:2 - 3/8" NPT Male to -6AN Male4 - 1/4" NPT Male to Feb 16, 2022 · 70" Transmission Cooler Hose for 700R4 4L60 4L60E 4L65E 4L80E, SS Braided Lines Compatible with Ford C4/C6/AOD & GM Chevy 1996+ Vehicles Dec 3, 2009 · I'm having some issues getting my transmission cooler lines to fit. Free shipping on orders over $300, fast delivery & everyday low pricing! Order now! These lines are available in standard OEM steel or durable stainless steel and provide you with highest quality, longest-lasting, best fitting transmission cooler lines you'll find for your Ford. Larger Photo Email A Friend Gear up for your next trail ride with our C4 Cooler Line Adapter AN-6 Fitting. Why such a large cooler? My pickup (as well as many Bronco's) has a mechanical fan - which only draws so much air. exclusive! Replaces Ford Part # C7ZZ-7D273-B and C9ZZ-7D273-B. Worked like a charm. Lots of the coolers have 3/8 fittings, so you can run 5/16" for a bit and then transition to 3/8 steel brake tubing using brass fittings. Works on Most GM & Ford Transmissions, see below for more info. Eventually broke off so I need to replace it but have a questions. 8% positive May 23, 2025 · C4 and C6 Front and rear cooler line. Mar 31, 2018 · 1967 - 1972 F-100 & Larger F-Series Trucks - c6 transmission cooler lines - Can anyone tell me what size the transmission cooler lines and fittings are that run to the radiator? I have some left over 3/16 copper/nickel line from doing new brake lines and was wondering if I can use this. According to original factory specifications, perfect match to original car. (2) BLACK 1/8"NPT x -6 TRANSMISSION FITTINGS. You can't take the risk of rupturing a line and bending the stock lines to accept an external cooler is not going to look right not to mention the restriction in flow. Built specifically for the 1/8" NPS ports on a Early Bronco C4 automatic, these custom cooler line fittings adapt to eliminate guesswork for custom 6AN hoses. D. They utilize state-of-the-art CNC benders and automated end-forming machines that produce remarkable consistency from one part to the next. They include the correct fittings, flares, and protective wrap (where equipped) and Aug 12, 2009 · I saw many people looking for C4 cooler line fittings. Very hard to find until now. Each kit includes the correct case fittings along with 15 feet of -6 braided stainless steel hose and the correct angled hose ends to attach to the case adapters and the transmission cooler. I have never done Ford C4 1/8" NPS to 6AN cooler line fittings (Black)Sold as a pair Aug 2, 2011 · The second number is a 6AN X 3/8 ID 90 degree hose barb fitting. Oct 24, 2025 · We specialize in Ford, Chrysler and GM 3 & 4 speed automatic parts. Cross Reference & OEM Part Numbers: C9ZZ-7D273-B,C9ZZ, Buy part #7D273-4AK Automatic Transmission Cooling Line Case Fitting O-Ring Kit for your classic vehicle from National Parts Depot. Available in -6AN or -8AN male nipples. Ford Push-In Cooler Line Fittings 11/16" Threads. Each kit includes the correct case fittings along with 15 feet of -6 braided stainless steel hose and the correct angled hose ends to attach to the case adapters and the transmission cooler. Apr 8, 2015 · 1967 - 1972 F-100 & Larger F-Series Trucks - Transmission cooler line fittings - I'm hoping someone can help me find a source for the fittings between the oil cooler in the radiator and the lines that run back to the transmission on a '70 F-250. Classic Tube Automatic Transmission Cooler Lines for 1966 MUSTANG - MUT1004-OE Transmission Cooler Lines, Steel, Ford, C-4, Fits Models with Factory Equipped 8-cylinder Engines Only, Pair Part Number: CST-MUT1004-OE 3. Fits for Transmission TH350, TH400, 4L60E, 4L80E, 700R4, 200-4R, TR6060, Ford AOD 4R100, 4R70W, and C5 etc. Get the best deals for Ford Transmission Cooler Line Fittings at eBay. I’m sure the fitting on the line is. Then I realized the transmission needed this 90 degree fitting. 99 for normal original steel on CJ's. AN fittings are 37*. I found some 90 degree 1/8 SPT (w/ o-rings) fittings at MAKCO (bulkpart. Anyone use braided tubing before instead of that common rigid tubing? Transmission Cooler Lines For 64-65 Ford Mustang Falcon Mercury Comet 8 Cylinder w/ C4 Transmission w/o Fittings at Radiator 2 Piece Stainless. Find many great new & used options and get the best deals for Ford C4 Transmission Cooling Line Compression Fitting at the best online prices at eBay! Free shipping for many products! Jun 16, 2003 · The fittings in the trans will accept the ends of 5/16" steel brake line tubing. Each fitting is made to milspecs from aerospace grade material. The inlet line is responsible for delivering the hot transmission fluid from the transmission to the cooler, while the outlet line carries the cooled fluid back to the transmission. Or just throw out your wallet and pop for braided hose. When it comes to transmission lines, you can never be too safe, so use the best transmission cooler lines that you need for your application to prevent leaks or premature wear. this will keep air bubbles from being trapped in the cooler. It’s the smart way to modernize your cooling setup without compromising your hard lines. Oct 8, 2021 · I run an auto trans cooler with rubber lines that feed from the original metal cooler lines that we're cut. Now on the install running into a snag. Our Transmission Cooler Line kits include all lines needed to replace the OEM lines that run from the transmission to the radiator. Fits 1973-1977 Bronco’s with the C4 automatic transmission. Adapters required and are also available. Included: Hose:2 - 50" Long Stainless Steel Hose -6AN hose w/swivel ends 3/8" I. Jun 21, 2004 · I installed a new trans cooler in my rig and used 6AN lines and fittings. Keep your transmission fluid flowing with Ford Mustang transmission cooler lines. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Description C4 Automatic Transmission Cooler Line Set. Reaming the case would mean tearing the tranny apart. Anyway, I don't think you need the 90 degree fitting for the transmission if you use the rubber lines, but you will need it for the prebent lines. Apr 9, 2007 · Some people run the rubber lines, I just pulled them off of my C4 since the PO was being cheap and just ran them. The Right Stuff Detailing offers you the best fitting, most exact reproduction transmission cooler lines on the market today. Get all the transmission cooler line information you need to repair, replace, or make your own custom lines for your project. Aug 21, 2015 · Then the cooler lines were run to the front of the car and I just used the cooler inside the radiator. Order this Pair of Transmission Cooling Line Fitting Adapters for your 1966 Mustang from CJ Pony Parts today! 1966 Mustangs originally used these fitting adapters because the fittings on the radiator end of the transmission cooling lines were too large. The front fitting on the transmission should be a straight fitting but I can only find 90* fittings :bitch:. Perfect for factory and aftermarket lines. Feb 27, 2002 · Anyone know off hand the size of the fittings on a C4 transmission? I need to order the correct adapters to plumb 6AN line into the transmission and my brain has left for the weekend (already) and don't have a measurement to send more money to Summit Racing with Find FORD Fluid Cooler Lines In Stock Filter Options, Vendor In Stock Filter Options and get Free Shipping on Orders Over $109 at Summit Racing! Find Parts and Accessories c4 transmission cooler KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! These lines are available in standard OEM steel or durable stainless steel and provide you with highest quality, longest-lasting, best fitting transmission cooler lines you'll find for your Ford. Hope this helps some of looking for new fittings. and 7/16" O. com). Stainless Steel. Easily convert your transmission lines. com FREE DELIVERY possible on eligible purchases May 20, 2020 · C4 Cooler Line Adapter Fitting - Mounts in Transmission Case This fitting has npt threads which will thread into the factory C4 Automatic Transmission to allow the factory C4 cooler lines to mount into the tranny cas Apr 20, 2017 · 1964-65 V8 C4 5/16 Transmission Cooler Lines 2pc OE Steel These preformed transmission lines replace the original transmission cooler lines and run from transmission to radiator following the factory routing. Jun 23, 2009 · The metal lines add to the cooler capacity of your transmission and rubber lines tend to hold the heat in. The first-rate opportunity to get into the C4 genre and cant be nos, this type of Line is not available anymore but the fitting is a Jan 4, 2022 · About this item 🚗Replace Number - Transmission cooler hose fitting replace number is TH350 700R4 TH400. The 1/2-20 inverted flare screws into the transmission; I used 3/8 ID transmission cooler hose to run to the radiator and cooler. Feb 22, 2023 · 70inch Stainless Steel Braided Lines 6AN Transmission Cooler Lines Kit Replacement for for Ford C4-C6-AOD, GM Chevy 1996-2021 4L80E, for Turbo 350/400/200-200R4/700R4 4L60 4L60E 4L65E Jun 3, 2022 · 6AN Transmission Cooler Lines 70 Inch, Stainless Steel Braided Hose Fitting Repair Kit for Turbo 350/400/200-200R4/700R4 4L60 4L60E 4L65E, for GM Chevy 1996-2021 4L80E, for Ford C4-C6-AOD Feature: 100% Brand New Direct replacement for proper fit and function every time. Jun 7, 2022 · 1973 Torino with 351W. Sep 20, 2006 · the fittings on the stock cooler lines are not AN, they are a standard 45* flare fitting. Apr 30, 2011 · Anyone know where to get fittings that go into a C4 trans for the oil cooler lines? they are not 1/4 pipe or anyother common thread I can find. Also unrelated, but as I consider replacing the transmission cooling lines anyway, is it worth it to spend $78. They would be brass though and with a alum. The one hard line has a brass 90 degree bend coming out of the c4. These lines are available in standard OEM steel or durable stainless steel and provide you with highest quality, longest-lasting Oct 18, 2025 · Now available for late model Ford C4 transmissions with straight thread and washer seal. Aug 27, 2025 · Fragola 481671 Transmission Line Cooler Adapter Fittings -6 AN Ford C4 C6 ezdealers (19540) 99. They include the correct fittings, flares, and protective wrap (where equipped) and are designed to work with factory radiators and components Sep 29, 2016 · 1973 - 1979 F-100 & Larger F-Series Trucks - C6 transmission fittings - Trying to replace the cooling lines on my C6 transmission and am running into some difficulty. High quality at a great price! 1967-1969 C6 Transmission Cooler Line Fitting90° angle cooler line fitting for 67-69 C6 transmissions in Mustangs and Cougars. Ideal for revamping and personalizing. The transmission cooler line that connect further back on the transmission might be stripped out. As a bonus, all of The Right Stuff Detailing's products come with a limited lifetime manufacturer warranty. Most of the kits I find on Summit web site says they come with -6an fittings or clamp on fittings for rubber hose. If you're going to do it, do it right! Cheap Ford C4 Transmission Cooler Line Fittings This is an enticing opportunity to purchase an 1964-65 Ford falcon Transmission Cooler Line fittings, this bike presents an 8 cyl engine and the lines allow the use of a C4 engine either in the front or back end. Free shipping on orders over $300, fast delivery & everyday low pricing! Order now! Jan 4, 2008 · Better yet make the holes in the fittings at least 7/32" and ream the rear cooler passage to 3/16" and add the lube port for the #9 thrust washer. Apr 3, 2016 · Currently I have a small cooler with the stock metal lines mounted in front of the radiator. If you still want to run your existing lines your local auto parts should have the fiiting. Some models have an external cooler line which we will also include. YES I would recommend this product. s0b arhnv5z mxwa ogoyngbpz kp7a znle6 drj2 81 zhejyrv gci