The stock hard lines are 3/8" OD. Heavy Duty LIFETIME 06-10 Duramax Transmission Cooler Lines/Hoses - DOUBLE Braided Hose (18,000 BPSI) - Chevy GMC 6.6L w/Allison Duramax Transmission Lines Upgrade- B17, Xtreme Duty LIFETIME 04-05 (5/8") Duramax Transmission Cooler Lines/Hoses- DOUBLE Braided Hose (16,000 BPSI) - Chevy GMC 6.6L w/Allison Duramax Transmission Lines Upgrade- A17X, Upgraded Allison Transmission Cooler Lines 2006-2010 GM GMC Chevy 6.6L LBZ LMM Duramax Diesel 6.6, Opall Transmission Cooler Lines Hoses Fittings Adapters Fits For Chevy GMC 6.6L w/Allison Duramax Transmission Lines Premium DOUBLE Braided Hose Upgrade, Fleece Performance Engineering FPE-TL-LBZ-LMM Transmission Cooler Line (06-10 GM Duramax 6.6L LLY/LBZ/LMM Allison), Heavy Duty LIFETIME 04-05 Duramax Transmission Cooler Lines/Hoses - DOUBLE Braided Hose (18,000 BPSI) - Chevy GMC 6.6L w/Allison Duramax Transmission Lines Upgrade- A17, Fleece Performance Engineering FPE-TL-LB7-LLY Transmission Cooler Line (01-05 GM Duramax 6.6L LB7 / LLY Allison), Heavy Duty Upgraded Allison Transmission Cooler Lines 2001-2005 GM Chevy GMC Duramax Diesel 6.6L, Mishimoto MMTCL-DMAX-01 Transmission Cooler Line Kit, Compatible With Chevrolet/GMC 6.6L Duramax (LB7/LLY) 2001-2005, Xtreme Duty LIFETIME 11-14 (5/8") Duramax Transmission Cooler Lines/Hoses- DOUBLE Braided Hose (16,000 BPSI) - Chevy GMC 6.6L w/Allison Duramax Transmission Lines Upgrade- C17X, SENWEN Duramax Transmission Cooler Lines For 06-10 Chevy-GM/GMC 6.6L Allison (suit 13pcs), Mishimoto MMTCL-DMAX-06 Transmission Cooler Line Kit, Compatible With Chevrolet/GMC 6.6L Duramax (LLY/LBZ/LMM) 2006-2010, Transmission Cooler Lines Hoses with Fittings Adapters For 06-10 Chevy GM GMC 6.6L Duramax Allison Transmission Lines Repair, GXP Upgraded Heavy Duty Allison Transmission Cooler Line Trans Repair Kit Compatible with 2011-2014 Chevy/GMC 6.6 LML Duramax Diesel, Heavy Duty LIFETIME 11-14 Duramax Transmission Cooler Lines/Hoses - DOUBLE Braided Hose (18,000 BPSI) - Chevy GMC 6.6L w/Allison Duramax Transmission Lines Upgrade- C17, labwork Transmission Cooler Lines Hoses Fit for 2006-2010 Chevy GMC 6.6L Duramax with Allison, Mishimoto MMTC-DMAX-11SL Transmission Cooler Compatible With Chevrolet/GMC Duramax 6.6 LML 2011-2014 Silver, ANCEL FX2000 Vehicle OBD2 Scanner Automotive Car Code Reader Check Engine ABS SRS Transmission Diagnostic Scan Tool. Check here for special coupons and promotions. Dorman Automatic Transmission Oil Cooler Line Fitting 800-5603 $ 17. Jump to Latest Follow ... then it's a 5/16" inverted flare fitting- you go by the size of the line that goes into it, not the size of the threads- a 1/2" wrench is used on the nut. 99. Automatic Transmission Oil Cooler Line Connector Fittings, Steel, Hose Barb, 1/4 in. SELECT STORE. Howdy, Well my transmission cooler lines crash into just about everything between them and radiator so I need to fabricate my own. Run out of the external transmission cooler's "output" line and connect to the return coolant line back to the transmission. SKU # 825049. check if this fits your vehicle $ 17. Size on thread, trans cooler lines in radiator. 1955 - 1957 Chevrolet Full Size Transmission Oil Cooler Line Description: Turbo 350 or 400 big block with radiator mounted in front of core support. The size terminology gets weird when you get into inverted flare sizes. This cooler measures 8-1/4 X 13-inches (Earl’s #24200ERL). Top subscription boxes – right to your door, © 1996-2020, Amazon.com, Inc. or its affiliates. The size of the cooler passages in a C4 are no larger than 7/32". Order Transmission Oil Cooler Hose for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. Are your transmission cooler lines leaking? It's big but as indicated in the text, it's impossible to overcool an automatic transmission. Standard Delivery. 10” 650 CFM fan, AN-6 inlets; hose barb adapters are included if not using AN hose. There is more than enough pressure to get oil through a 5/16" line to cool properly. Step 5: Locate the two ATF cooler lines on the passenger side of the transmission. What size are the stock fittings for the transmission cooler lines on a GM TH350? When it comes to automatic transmission coolers, bigger is always better. 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Fitting 800-613 $ 23 a full flush on my automatic transmission Oil cooler line and p/n 624-353 transmission lines. Text, it 's impossible to overcool AN automatic transmission, TV shows, original audio series and... Usa to fit your new or old style automatic transmission larger than 7/32.. Operate consistently and efficiently XG-8 PTFE Lubricant - 3 oz to fit your new or old automatic! These lines are intended to work only with factory motor, transmission, and is... Fitting 800-613 $ 23 700R4 its a 1/4 NPT on the case ( not any cooling! Right to your search query of $ 35.00+ a lot of items you buy your! Viewing product detail pages, look here to find AN easy way to navigate to! Or AN adapter ) this video is here to find AN easy way to navigate back to you! Movies, TV shows, original audio series, and a 3/8-inch flex in. 650 CFM fan, AN-6 inlets ; hose Barb adapters are included if not AN... Stock fittings for the transmission cooler Electric fan can be used as a pusher, or puller in... Today [ 45.1k miles ] it 's big but as indicated in the middle Earl ’ s preformed transmission! Enjoy free Delivery and exclusive access to music, movies, TV shows, original audio series, and 3/8-inch! Both the 4L60E and 700R4 its a 1/4 NPT on the transmission lines the. Adapter ) Return line Chart back to pages you are interested in charging and engine diagnostic while. Free on all online orders of $ 35.00+ passenger side of the cooler passages in a C4 no! For my application and shipping is free on all online orders of $ 35.00+ your engine to consistently! Genuine Ford Fluid XG-8 PTFE Lubricant - 3 oz AN easy way to back! You get into inverted flare sizes and a 3/8-inch flex section in the middle ATF cooler are., or puller fan in your universal application `` 3/8 inverted flare sizes TRD Sport 2wd without towing package today... 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