Trans Cooler Line Fitting for Chevy Silverado GMC Sierra 2500HD 11-18 | M20x1.5 Male Thread Brass Transmission Cooler Line Connector

🔧 WHY REPLACE THIS PART Over time, original transmission cooler line fittings can wear out, crack, or loosen due to constant heat, pressure, and vibration. A failing connector may cause: Transmission fluid leaks Transmission overheating Hard, delayed, or rough shifting Premature transmission damage Costly repair bills Replacing worn fittings early helps maintain proper fluid flow, protect your transmission system, and avoid expensive repairs. 🔧 WHY CHOOSE H-Jun ✔ Heavy-duty steel construction for strength and durability ✔ Strong sealing performance helps prevent fluid leaks ✔ Excellent resistance to high temperature and pressure ✔ Direct replacement design – no modification required ✔ Reliable and cost-effective alternative to OEM parts 🔧 SPECIFICATIONS Thread Size: M14x1.5 Material: Steel Finish: Yellow Zinc Plated Quantity: 2PCS Type: Transmission Cooler Line Fitting Fitment Type: Direct Replacement 🔧 COMPATIBLE WITH For Chevrolet Silverado 2500 HD 6L 2011-2018 For Chevrolet Silverado 3500 HD 6L 2011-2018 For GMC Sierra 2500 HD 6L 2011-2018 For GMC Sierra 3500 HD 6L 2011-2018 🔧 NOT COMPATIBLE IF ✘ Thread size is not M14x1.5 ✘ Different engine size or incompatible model ✘ Modified transmission cooling system ✘ Custom aftermarket radiator without matching thread size

• Perfect Fit – Fits for Chevrolet Silverado 2500HD, Silverado 3500HD, GMC Sierra 2500HD and Sierra 3500HD 2011-2018. Direct replacement for original transmission cooler line fittings. Please confirm your vehicle model before purchase.
• ⚠️ Check Before Buying – If you have replaced your radiator, the original connector size may change. Please verify thread size (M14x1.5) using the size chart to ensure proper fit.
• Fix Transmission Fluid Leaks – Replaces worn, cracked or leaking fittings to restore proper fluid flow. Helps prevent overheating, rough shifting and costly transmission damage.
• Made of heavy-duty steel for high strength, durability and pressure resistance. Built to withstand high temperature transmission systems and ensure long-lasting performance.
• Package & Support – Includes 2PCS transmission cooler line connectors. Easy to install with no modification required. Contact us anytime for support, we respond within 24 hours.