Silverado transmission return line. 0 out of 5 stars
Jul 14, 2021 · Amazon.
Silverado transmission return line Apr 14, 2018 · The lines on the passenger side were engine oil cooling lines. So whether you have a 4. Out of the top of the radiator to the auxiliary cooler right side fitting. Enjoy!silicone s Shop for New Auto Parts at 1AAuto. Apr 23, 2023 · The 2008 Silverado offers a robust transmission cooler line that prevents overheating, resulting in smoother and more efficient shifting. Aug 20, 2024 · The supply line to the cooler/radiator is the bottom hose, return is the top. Start engine while engine is cold 2. NPS Male Threads to 3/8 in. Aug 10, 2018 · View attachment 2018 Silverado Transmission Fluid Cooler Lines. This letter is intended to make you aware that on some 2017-2018 model year Chevrolet Silverado HD and GMC Sierra HD vehicles equipped with a Duramax Diesel engine, the transmission cooler lines may be rubbing on the front frame/bumper mount bracket. Mar 29, 2022 · I had 3 lines in my cart and was suppose to delete the one I didn't need but accidently deleted the correct line which was the lower. I disconnected the line in my truck & put this fitting there. Feb 10, 2023 · Buy A-Premium Automatic Transmission Oil Cooler Line Hose Assembly Compatible with Chevrolet Silverado 1500 2007-2013 & GMC Sierra 1500 2007-2013 Replace# 25808930, 15848517: Cooling Lines - Amazon. If your car has an automatic transmission, then it likely has a transmission Transmission Oil Cooler Pressure And Return Line Application Summary : Chevrolet Silverado 1500 2014-09, GMC Sierra 1500 2014-07 Buy Transmission Oil Cooler Return Line - NOE 624834 online from NAPA Auto Parts Stores. This condition could cause cooler lines to leak. 0 with a 4l80e transmission. The lower line, which runs from the transmission to Mar 22, 2025 · RC31310049, 15291422, 15779543, 5801383, 2014 2013 2012 2011 2010 2009 2008 2007 Chevrolet Chevy Tahoe GMC, Sierra 1500 Cadillac Escalade Avalanche Yukon XL Suburban ESV, Silverado EXT, transmissionmfrcode : 6L80, With Rpo Code Knp (Heavy Duty, Transmission Cooling System), transmissionmfrcode : 4L60-E, With, Rpo Code Knp (Heavy Duty Transmission Cooling System), Auxiliary Cooler Inlet From Apr 20, 2025 · Brand BOLD Auto Parts Type Transmission Oil Cooler Line Interchange Part Number 23370657, 23234833 23115735, 23141324, 23228719, 23234833, 23292385 OE/OEM Part Number 23141324 Manufacturer Warranty 3 Months Items Included Transmission Oil Cooler Manufacturer Part Number 23141324 Material Aluminum UPC Does not apply . On a different make/model you would need to trace the lines to figure out which one is the feed and which one is the return. 3L located from Inlet Line runs from Top Fitting at Transmission to Driver's Side Bottom Fitting at Radiator, Outlet Line runs from Quick Connect Fitting on Passenger's Side of Radiator to Bottom Fitting at Transmission, Auxiliary Cooler Line runs from Top Fitting at Radiator on Driver's Side to Auxiliary Cooler Fitting on Driver's Side Mar 21, 2025 · Dorman Transmission Oil Cooler Return Line for Suburban Silverado Sierra 1500 Transmission Line Adapter Fittings, 1/4 in. Equip cars, trucks & SUVs with 2014 Chevrolet Silverado 1500 Transmission Cooler Line Assembly from AutoZone. All lines are formed utilizing the correct automotive grade, OE or stainless steel tubing and includes the correct style flares, fittings and protective wrap, installed on the May 23, 2023 · It sounds like you're looking for the return line on your 2020 Chevrolet Silverado 1500 so you can install an aftermarket transmission cooler like the Derale Combination Transmission and Engine Oil Cooler with Multiple Threads part # D15902. I just remember at first I hooked into the wrong one, and got transmission fluid all over the floor when I started the truck up. I know the fluid travels through the radiator and the auxillary cooler up front, but need to know the line of travel from the transmission through the coolers and back. Remove the top return line from the radiator and attach a clear hose, and direct the hose into a 5 gal bucket. Start it up and put it in drive and brake torque it (apply brakes and rev the engine), for about 10 seconds or so, put vehicle back in park, and turn engine off. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. Auxiliary Transmission Cooler Line Replacement. Now I have Are your transmission cooler lines leaking? This video is here to help you perform a quick, easy, and dirty repair to STOP them from leaking. Some drivers may have difficulty selecting gears or experience transmission slip" Jun 1, 2006 · Used it on my 2007 Silverado 2500 HD. Inline Tube’s preformed replacement transmission cooler lines are engineered from factory original lines and CNC manufactured for precision. In my mind the feed line would be the cold one going into the transmission and the return line would be the hot one going into the heat exchanger. . I think It was the bottom one, but not 100% sure. 7 small block, or a more modern truck with an LT motor, the transmission cooler flow is very similar. Once the hot fluid flows into an through the factory cooler, it then exits at the top or other side to the cooler outlet or return line, which is the top line on In order to tell which transmission fluid line is the return line leaving the factory cooler of a vehicle like your 2001 Chevy Silverado you want to start with your vehicle cold. When you remove your transmission pan to change the fluid,filter & gasket,there is still dirty fluid in the system. 1 day ago · Hello, replacing the transmission cooler lines on 2004 hd 4x4 6. 8, 5. FYI, some vehicles have the factory cooler on the bottom of the radiator, but simply follow the lower cooler line coming from the transmission to find the hot or cooler inlet line. Skip to main content. Apr 22, 2025 · Transmission Oil Cooler Hose Pressure & Return Line For Tahoe Silverado 1500 V8. 0 out of 5 stars Jul 14, 2021 · Amazon. Fits: 2006 thru 2010 Chevy Silverado/GMC Sierra 2500HD/3500HD LBZ/LMM Duramax Diesel. Feb 12, 2019 · -1993 K3500- 4x4, single cab/long bed, single rear wheels, 4. " Lower radiator to upper radiator port out to external transmission cooler; External transmission cooler to upper transmission cooler line port; If you do not have an external transmission cooler, the cooler line flow goes as follows: lower cooler line > lower radiator port > upper radiator port > back to upper transmission line. How to Determine Which Transmission Line is the Return Line for Installing a Transmission Cooler - need to knw which side is the pressure side to hook up transmission cooler on 2001 dodge ram ext cab 2 wheel automatic 1500 5. Place in Park, stop engine, and remove keys 4. In this video make sure the steps and procedures necessary to replace the transmission cooler line assembly on a 2014 Chevy Silverado. The supply line carries hot transmission fluid from the transmission to the external cooler or radiator, where it is cooled down before being circulated back into the transmission through the return line. This fitting is exactly like the oil cooler line hose to your transmission. pdf Nov 25, 2016 · Hey All, Long time lurker, first time posting. You can find out more about the exceptions and conditions here. Oct 6, 2010 · Does anyone know the direction of flow for the transmission cooler. The supply line carries the hot transmission fluid from the transmission to the cooler, while the return line carries the cooled transmission fluid back to the transmission. Quick-connect Female Threads, Steel, Natural, GM, Hummer, Each. that i'm replacing the transmission cooling lines on. The non HD line is what he installed onto the lower. Mechanic's Assistant chat. pdf Attachments 2018 Silverado 1500 Engine Oil Cooler Lines. Get Yours Today! We have the best products at the right price. There is a little clip you need to remove to get the transmission line out. 42 with towing package. Features: High Flow & Flexible; AN Fittings; OEM Fitment; Includes Equip cars, trucks & SUVs with 2010 Chevrolet Silverado 1500 Transmission Cooler Line Assembly from AutoZone. Part Number: ADO-19125677 5. 2018 Chevy Silverado 1500 had transmission line running through the condenser can I put the lines through the radiator. I routed the transmission fluid from the exit port on the radiator, through the aftermarket transmission cooler, and then back to the case. This is where fluid is returned from the cooler to the transmission. Aug 12, 2017 · #8, Cooler Feed (Fluid OUT to cooler) Top line at the transmission. com Return Policy: Amazon. Apr 22, 2025 · RC31310049, 15291422, 15779543, 5801383, 2014 2013 2012 2011 2010 2009 2008 2007 Chevrolet Chevy Tahoe GMC, Sierra 1500 Cadillac Escalade Avalanche Yukon XL Suburban ESV, Silverado EXT, transmissionmfrcode : 6L80, With Rpo Code Knp (Heavy Duty, Transmission Cooling System), transmissionmfrcode : 4L60-E, With, Rpo Code Knp (Heavy Duty Transmission Cooling System), Auxiliary Cooler Inlet From Jul 15, 2010 · Transmission fluid cooler lines: On the 700R4 the bottom fitting on the right side of the transmission is the "out" line to the cooler and the top fitting is for the return line from the cooler. Y'all need to make sure you're talking about the same thing. any advice or suggestions to get my hands in there? Apr 20, 2025 · Hello, From the provided image, which line is the transmission return line from the radiator? A: The top-black hose (I believe this to be the coolant return) B: The middle-Metal hose (I believe this is the transmission return line) C: The lower-metal hose Thanks for any assistance! Jul 4, 2018 · We removed the grille and found that the return line from the trans cooler was wrapped in Kevlar tape and rested up against a steel bumper support which after 50k miles had worn a hole in the aluminum return line (first picture). I successfully changed the fluid in my front and rear differentials and the fluid in the transfer Jul 14, 2013 · 2014 Chevy Silverado 1500 Transmission Cooler lines 5. Transmission Cooler Flow Direction As already mentioned, the flow direction of the transmission cooler is such that the top hose attachment is the hotline, and the bottom one is the cold line. Late 4L80E's have COOLER RETURN LINE CHART CHRYSLER. Thanks May 15, 2023 · If so, the lines are correct, and you can't mess them up. 3 4x4 3. 5" crossover, boost and EGT gauge, ACDelco glow plugs, Draw-tite class 5 hitch. #9, Center Lube (Fluid RETURN from cooler) Bottom line at the transmission. 9 Q&A: How to Determine Which Transmission Line is the Return Line for Installing a Transmission Cooler; Q&A: How to Determine Which Line is the Return Line for Installing Supplemental Transmission Cooler; Shop: Trailer Hitch; Shop: Transmission Cooler; Shop: Derale Series 8000 Plate-Fin Transmission Cooler Kit w/Barb Inlets - Class III - Efficient #gmtech #chevytrucks #foryou #foryoupage #foryoupage #fyp #viral_video #viralvideo #viral #viraltiktok #mechanicsoftiktok #mechaniclife #mechanic #chevy #sti Yes the line coming out of the top of the transmission is the return line, at least it is on a Silverado. Jan 19, 2025 · Below is a basic Silverado and Sierra transmission cooler line diagram showing the standard hot (send) and cool (return) lines as the flow through a factory cooler setup. it is very easy to loose. Transmission fluid may bee seen on ground under the front bumper. Transmission fluid may be seen on Mar 9, 2023 · However, on the transmission side, there are no rules as to which line is the feed or return, so you have to check for your specific transmission. I believe (not 100%, but pretty sure) that the flow is from the transmission, through the radiator side tank, then through the smaller separate trans cooler up front, then back to the transmission. This is especially important for those who drive frequently or tow large loads with their Silverado, as it ensures the engine won’t overheat while driving under heavy load conditions. Identify the oil return line by feeling both oil lines. 3, or 6. com FREE DELIVERY possible on eligible purchases The best way to determine which line on a transmission cooler is the return line from the radiator is to use the following procedure: 1. video/c-182-fTransmission cooling lines deliver and return transmission fluid between the transmission and Transmission Cooler Lines. Shooter56 was nice enough to post a parts list, how I am struggling to get the back line or return line back on. A typical Silverado transmission cooler line diagram consists of two lines: the supply line and the return line. The correct routing is out of the transmission via the lower line to the lower right side of the radiator. , it is very important to determine the send line and which line is the return line on a 4l60e transmission (inlet and outlet). They are formed to go to a specific spot, as designed by GM. Apr 9, 2025 · Transmission Governor Spring & Weight Kit Th350 400 700-r4 K018 Superior Automatic Transmission Solenoid Kit-Auto Trans Solenoid Kit ZF 1068 298 044 Sonnax Overlap Control Valve Sleeve Kit 722. I would not blow compressed air into any of the lines or trans. Apr 17, 2025 · Oil Coolers for Chevrolet Silverado 1500 HD, Oil Coolers for Ram 1500, Complete Auto Transmissions for Chevrolet Silverado 1500, A/C Hoses & Fittings for Chevrolet Silverado 1500, Transmission Filters for Chevrolet Silverado 1500, Cooling System Hoses & Clamps for Chevrolet Silverado 1500, Automatic Transmission Parts for Chevrolet Silverado 1500 May 18, 2025 · Transmission Cooler Lines Diagram 4l60e transmission cooler lines diagram. These fittings are 1/4-inch pipe thread, and CAN include an adapter from the factory for threaded steel lines in an SAE size. We patched it an I got it the 650 miles back home and took it to the dealer. Sep 8, 2022 · Which is the Return Line on a 700R4 Transmission? The return line on a 700R4 transmission is the lower pressure port on the passenger side of the transmission. Aug 1, 2007 · It depends on what you are calling the feed and return lines. Previously, the transmission fluid was cooled through the radiator. 0 LS powered truck , an older 5. Hi ! Hi! 2016 Silverado Transmission Cooler; Apr 26, 2010 · Just like the title says I could use either some pics or a detailed description on where the stock transmission lines run, from the transmission up to the radiator. I have a 2014 Silverado 1500 Z71 5. I need to know the correct routing for both lines direct to the radiator as I am eliminating Equip cars, trucks & SUVs with 2018 Chevrolet Silverado 1500 Transmission Cooler Line Assembly from AutoZone. Silverado Sierra Transmission Cooler Line Replacement Repair Below is a basic silverado and sierra transmission cooler line diagram showing the standard hot (send) and cool (return) lines as the flow through a factory cooler setup. Out of the auxiliary cooler left side back to the transmission upper May 25, 2025 · Silverado Sierra Transmission Cooler Line Replacement Repair. Place transmission shift lever in drive for no more than 10 seconds 3. I checked a 6L80E GM service manual & a 6L80E ATSG manual, Same picture in both! All GM/Hydramatic RWD units are this way with the exception of the TH200 & 200-4R which are backwards. It's my fault for not doing a better job at making sure I had the correct parts. Fix your leaking transmission lines with these heavy duty, high flow, flexible transmission lines. Transmission Cooler Lines to Radiator . It returns from the radiator to my factory external transmission cooler. This condition could cause the cooler lines to leak. regarding factory coolers for trucks, gm suvs, etc. This kit comes complete with everything needed to get the job done right the first time. Get deals on automotive parts, truck parts and more. this tells you through which the upper radiator port and the external transmission cooler Oct 12, 2024 · I just installed an aftermarket transmission cooler on my 2011 Chevy 1500. From the add-on cooler, it should flow to the factory heat exchanger in the radiator before returning to the transmission. pdf View attachment 2018 Silverado 1500 Engine Oil Cooler Lines. Get a helper to run the engine. Transmission Location: 30‐40LE Rear: 404, 413, 470 Top the Transmission 670: Top 727 (TF‐8) Rear 904 (TF‐6, All Ver-sions May 20, 2008 · "Transmission fluid cooler lines: on the 700R4 the bottom fitting on the right side of the transmission is the "out" line to the cooler and the top fitting is for the return line from the cooler. He’s procedures will b Feb 22, 2025 · RC31310049, 15291422, 15779543, 5801383, 2014 2013 2012 2011 2010 2009 2008 2007 Chevrolet Chevy Tahoe GMC, Sierra 1500 Cadillac Escalade Avalanche Yukon XL Suburban ESV, Silverado EXT, transmissionmfrcode : 6L80, With Rpo Code Knp (Heavy Duty, Transmission Cooling System), transmissionmfrcode : 4L60-E, With, Rpo Code Knp (Heavy Duty Transmission Cooling System), Auxiliary Cooler Inlet From Feb 2, 2018 · If installing an additional transmission cooler onto a vehicle, the lines should be set up so the fluid flows from the converter to the add-on transmission cooler in front of the radiator. Customer: Nov 15, 2013 · The return line from the cooler is on the top and the line feeding the cooler is on the bottom. Just passed 42K miles, and wanted to change out the factory fluids before winter. Jul 2, 2017 · We removed the grille and found that the return line from the trans cooler was wrapped in Kevlar tape and rested up against a steel bumper support which after 50k miles had worn a hole in the aluminum return line (first picture). While I was replacing the half-assed brake lines in my truck I discovered that one of the previous owners hacked off the stock transmission lines and ran their own. com https://trq. 2017-2019 Silverado 2500HD Thank you for watching! If you would like to see exclusive, add free content alon Mar 21, 2025 · Find many great new & used options and get the best deals for Transmission Oil Cooler Hose Pressure & Return Line For Tahoe Silverado 1500 V8 at the best online prices at eBay! Free shipping for many products! The 4l60e transmission cooler line diagram typically consists of two lines: the supply line and the return line. I ended up ordering two upper lines, one was for a HD and the other was non HD. 10 rear end, F vin, Nv4500, factory red interior, 283,000+ miles A few mods: 3" straight pipe, Genuine HX35, Flowmaster 3" downpipe and 2. 3 4wh. Previous owner had cut the lines 10 inches from the transmission and ran rubber hose to the auxillary cooler and radiator. Connected 10' of clear hose to it & clamped the other end Feb 2, 2018 · The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board: 4l60e cooler line flow Jul 7, 2022 · A-Premium Automatic Transmission Oil Cooler Line Hose Assembly Compatible with Chevy Silverado 1500 2500 3500, Suburban 2500 & GMC Sierra 1500 2500 3500, Yukon XL 1500 2500 & Cadillac Escalade EXT ESV Nov 25, 2019 · Got a 2001 sierra 5. If that's the case then I'd love to be able to tell you exactly which one you need. 6 MERCEDES BENZ 68942-05k Aug 2, 2015 · Refers to Dmax HD crew, and says -- "may have transmission cooler lines rubbing on the front frame or bumper mount bracket. com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. kziakzmanwbkwzjorftqmgmnniranliivzllqqechvzinvswngoj