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Starting at $23.95, AutoBuffy stocks 6 turbocharger coolant lines from Gates and Dorman. This line circulates engine coolant through the turbocharger's center housing to absorb heat after shutdown, preventing oil coking and bearing damage. A cracked or leaking line starves the turbo of cooling, accelerating wear and risking costly turbocharger failure.
Turbocharger coolant lines come in OEM-equivalent and upgraded materials, and are sold as either the feed line (supply from engine to turbo) or the return line (hot coolant back to the block or radiator). Matching the correct position and connection type to your Chevrolet Cruze Ng is critical, since feed and return lines handle different pressures and temperatures. Most buyers should start with an OEM-spec replacement, but high-heat or high-boost applications benefit from upgraded braided or silicone-reinforced lines.
| Option | Best for | What you get |
|---|---|---|
| OEM-Equivalent Rubber/Molded Line | Daily drivers seeking a direct, hassle-free replacement | Factory fit and routing, correct fittings, meets original pressure and temperature ratings |
| OEM-Equivalent Feed Line (Upper) | Vehicles where only the pressurized supply side is damaged | Dedicated upper-circuit fit, typically a stiffer molded hose to handle higher coolant pressure from the pump |
| OEM-Equivalent Return Line (Lower) | Vehicles where only the gravity-fed or low-pressure return side is leaking | Softer, heat-resistant construction suited to high-temperature coolant draining back from the center housing |
| Upgraded Braided Stainless / Silicone-Lined Line | Modified engines, performance builds, or repeat failures on the OEM line | Superior heat and pressure resistance, longer service life, often reusable with serviceable AN-style fittings |
Allow the engine to cool completely before starting, then drain enough coolant to prevent spillage when disconnecting the lines. Remove any heat shields or brackets obstructing access to the turbo fittings, then swap the old lines for the new ones and secure all clamps or banjo bolts to a snug, leak-free fit without overtightening. Refill with the correct coolant, run the engine to operating temperature with the heater on, and check for leaks and proper coolant level before returning the Chevrolet Cruze Ng to service.