Cloyes S846 Engine Timing Camshaft Sprocket - Exhaust

Cloyes S846 Exhaust Timing Sprocket

The Cloyes S846 is an engine timing camshaft sprocket for the exhaust side, built for specific-fit applications across a wide range of Toyota, Lexus, Scion, Pontiac, and Chevrolet vehicles. It is a metal sprocket with a precision-machined bore, helical tooth form for quieter operation, and a keyway notch for accurate installation.

Key Features

• Specific-fit exhaust camshaft sprocket for select engine timing systems
• Metal construction with gray finish
• 36-tooth design with 0.16 in. tooth width
• Precision-machined 0.63 in. inside diameter for true fit
• Helical tooth form for quieter timing system operation
• Keyway notch included for indexed installation
• CAD-designed and manufactured using advanced materials
• Extensively tested for function and durability

Detailed Description

Cloyes S846 is an exhaust engine timing camshaft sprocket designed for specific applications where accurate valve timing is critical. It is used in timing systems on vehicles such as the Toyota Corolla, Toyota Prius, Toyota Camry, Toyota RAV4, Lexus CT200h, Scion xB, and related models. This part number, S846, is built to match the demands of engine rebuilds and routine timing service, with a precision-machined bore and a helical tooth profile that supports smooth, quiet operation.

This part cross-references OE-style numbers such as 135230D010 and 94859219 for the same application. Cloyes S846 is also listed for exhaust-side use on 1998-2013 Toyota Corolla, 2005-2020 Toyota Prius, 2002-2011 Toyota Camry, and 2011-2017 Lexus CT200h applications.

What It Helps Address

• Worn or noisy exhaust camshaft sprocket teeth
• Timing chain indexing issues caused by sprocket wear
• Improper cam timing from damaged or out-of-spec sprocket bore
• Engine noise related to timing system component wear
• Timing service needs on high-mileage Toyota, Lexus, Scion, Pontiac, and Chevrolet engines

Installation Notes and Tips

Verify engine code, model year, and exhaust-side application before installation. Cloyes recommends replacing the chain tensioner, sprocket, and guide components together when servicing the timing chain, since these parts work together to maintain chain tension and timing accuracy. Confirm the keyway notch orientation and bore fit during assembly, and follow the vehicle service manual for timing alignment procedures.

Quality Assurance

Cloyes designs this sprocket using CAD-based engineering and advanced materials, then tests each part for function and durability to support reliable engine timing performance. The S846 is built for specific-fit applications and is intended for direct replacement in confirmed vehicle listings.