Transmission Cooler Line Fitting for Chevy Trailblazer 2003-2009

Key features

• Perfect Fit – Fits for Buick Rainier, Chevrolet Trailblazer, Trailblazer EXT, GMC Envoy, Envoy XL, Envoy XUV, Isuzu Ascender, and Saab 9-7X (2003–2009). Direct replacement for original transmission cooler line fittings. Please confirm your vehicle model and thread size before purchase.
• ⚠️ Check Before Buying – If you have replaced your radiator, the original connector size may change. Please verify thread size (M18x1.5) 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.

🔧 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: M18x1.5 Material: Steel Quantity: 2PCS Type: Transmission Cooler Line Fitting Fitment Type: Direct Replacement 🔧 COMPATIBLE WITH For Buick Rainier 5.3L (2004–2007) For Chevrolet Trailblazer 5.3L (2006–2008) For Chevrolet Trailblazer 6.0L (2006–2009) For Chevrolet Trailblazer EXT 5.3L (2003–2006) For GMC Envoy 5.3L (2005–2009) For GMC Envoy XL 5.3L (2003–2006) For GMC Envoy XUV 5.3L (2004–2005) For Isuzu Ascend

Free shipping included. 30-day hassle-free returns.