Oil Return Chain Tensioner Cover With Turbo Drain For Honda K20 K24

The Oil Return Chain Tensioner Cover with Turbo Drain is a direct replacement upgrade engineered specifically for Honda and Acura K20 and K24 families. By integrating a dedicated fluid channel directly into the timing cover plate, this kit eliminates the messy workaround of drilling fresh passages in cast iron or welding improvised adapters on boosted builds. The slim, CNC-contoured body maintains safe clearance around the crankshaft pulley, while reinforced mounting flanges hold firm under extreme rotational vibration and temperature cycling.

Performance Benefits & Installation Tips

This assembly creates a reliable, leak-free pathway for returning pressurized oil straight to the sump or diverting excess vapor to an external catchcan. Properly managed return flow stabilizes timing system pressure and shields cam bearings from starvation during sustained high-RPM operation.

• Always thoroughly clean and degrease the stock cover mating surface before bolting the new plate to ensure a perfect seal.
• Hand-tighten the included mounting screws and cross-pattern them until snug; avoid over-compressing the aluminum housing.
• Route paired AN10 tubing away from exhaust manifolds and accessory belts to prevent heat degradation.

Technical Specifications

• Core Composition: CNC machined 6061-T6 aluminum alloy
• Surface Protection: Hard anodized silver coating for oxidation resistance
• Verified Compatibility: Honda/K20, K20A, K20Z, K24, K24A engine blocks
• Integrated Outlet: Pre-fabricated male AN10 port for universal hose connections
• Clearance Design: Low-profile geometry intentionally bypasses standard crank pulley arcs

Package includes:

• 1x Oil Return Chain Tensioner Cover Assembly
• 1x AN10 Threaded Fitting
• 1x Protective End Cap Plug
• 1x FKM Nitrile O-Ring Gasket
• 3x Precision Mounting Fasteners

Operational Reminders

Confirm your specific engine casting code before ordering, as bore patterns and sensor locations differ slightly across early K20 models. Tighten all fasteners to factory torque ranges and inspect all attached lines for pinch points during final drivetrain reassembly.

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