Cloyes S505 Engine Timing Crankshaft Sprocket - Center or Outer

Overview of Cloyes Engine Timing Crankshaft Sprocket S505

The Cloyes S505 Engine Timing Crankshaft Sprocket is designed for precise timing control in select Chevrolet, GMC, Isuzu, Oldsmobile, and Pontiac vehicles. Manufactured from durable steel, this sprocket ensures reliable performance in various engine applications including trucks, SUVs, and passenger cars.

• Constructed from high-strength steel for durability
• Single chain row design with 18 teeth for accurate timing
• Specific fit for models like Chevrolet Silverado, GMC Sierra, Pontiac Grand Prix, and more
• Dimensions: 2.82" outside diameter, 1.25" inside diameter, 0.53" thickness
• Includes a keyway notch and one mounting hole for secure installation

Detailed Product Description and Specifications

The Cloyes S505 crankshaft sprocket features a single chain row with a tooth width of 0.41 inches, optimized for engine timing chain engagement. Its gray steel construction provides resistance to wear and heat, essential for maintaining engine timing accuracy. The sprocket’s 18 teeth and 1.25-inch inside diameter with a matching mounting hole diameter ensure a precise fit on the crankshaft. The inclusion of a keyway notch prevents slippage, maintaining synchronization between the crankshaft and camshaft.

This sprocket is specifically designed for use in a range of Chevrolet, GMC, Isuzu, Oldsmobile, and Pontiac vehicles, including models such as the Chevrolet Blazer, GMC Yukon, Pontiac Firebird, and Oldsmobile Cutlass. The part number S505 corresponds to this exact fitment, ensuring compatibility and performance.

Common Applications and Issues Addressed

• Maintains proper engine timing to prevent misfires and rough idling
• Replaces worn or damaged crankshaft sprockets causing timing chain noise
• Prevents timing chain slippage that can lead to engine performance loss
• Restores engine timing accuracy after component wear or failure
• Supports engine rebuilds or timing system upgrades on compatible vehicles

Installation Notes and Tips

• Ensure the engine is at top dead center (TDC) before sprocket installation
• Verify the keyway notch aligns correctly with the crankshaft key
• Use proper torque specifications for the mounting bolt to avoid loosening
• Inspect the timing chain and related components for wear during installation
• Consult vehicle-specific service manuals for detailed installation procedures

Quality Assurance and Warranty Information

Cloyes manufactures the S505 crankshaft sprocket to meet OEM standards for fit, form, and function. The steel material and precise machining contribute to long service life under normal operating conditions. While specific warranty details may vary, Cloyes typically offers coverage against manufacturing defects. It is recommended to verify warranty terms with the parts provider or vehicle manufacturer.