Cloyes S1037 Engine Timing Crankshaft Sprocket - Outer

Cloyes S1037 Timing Crankshaft Sprocket

The Cloyes S1037 timing crankshaft sprocket is a metal, precision-machined engine timing component built for select Lexus and Toyota applications. It features an 18-tooth, single-row design with a keyway notch, two timing marks, and a helical tooth form for quieter operation.

Use this timing crankshaft sprocket when servicing the timing system on vehicles such as the Toyota Camry, Toyota RAV4, Lexus NX300, and Lexus IS300. Cloyes S1037 is engineered for accurate bore fit and dependable timing performance in engine rebuilds and routine replacement work.

Key Features

• Brand: Cloyes Timing Crankshaft Sprocket
• Part number: S1037
• Metal construction for engine timing service
• 18 teeth with single-row chain design
• Precision-machined 1.182 in. bore for true fit
• Helical tooth form for quieter operation
• Keyway notch and two timing marks
• Outside diameter: 2.28 in. Width: 1.489 in.

Product Details

Cloyes timing gears and sprockets are available as individual replacement parts or within complete timing kits. This sprocket is CAD designed and manufactured with advanced materials, then tested for function and durability to support consistent engine timing performance. Cloyes recommends replacing the chain tensioner, sprocket, and guide components together when the timing chain is serviced, since these parts work together to maintain chain tension and timing accuracy. This part cross-references 13521-0V010 and 135210V020 for the same application.

What This Part Helps Address

• Timing chain noise caused by worn sprocket teeth
• Incorrect chain engagement from damaged or worn timing gear surfaces
• Engine timing concerns related to sprocket wear
• Fitment issues during Lexus and Toyota timing system repair
• Repeat repairs when timing components are not replaced together

Installation Notes

Verify application by year, make, model, and position before installation. Fits 2020-2022 Lexus IS300, N/A; 2020-2021 Lexus NX300, N/A; 2020-2021 Lexus NX300h, N/A; 2019 Lexus GS300, Outer; 2018-2019 Lexus IS300, Outer; 2018-2019 Lexus NX300, Outer; 2015-2019 Lexus NX300h, Outer; 2018-2019 Lexus RC300, Outer; 2009-2019 Toyota Highlander, Outer; 2013-2018 Lexus ES300h, Outer; 2018 Lexus GS300, N/A; 2013-2018 Toyota Avalon, Outer; 2009-2018 Toyota RAV4, Outer; 2016-2017 Lexus GS200t, Outer; 2016-2017 Lexus IS200t, Outer; 2015-2017 Lexus NX200t, Outer; 2016-2017 Lexus RC200t, Outer; 2010-2017 Toyota Camry, Outer; 2011-2016 Scion tC, Outer; 2009-2016 Toyota Venza, Outer; 2011-2013 Toyota Sienna, Outer. Replace related timing chain components as needed during service and confirm timing marks during assembly.

Quality Assurance

Cloyes manufactures this timing sprocket using CAD-based design, advanced materials, and durability testing to support reliable engine rebuild and replacement service. The S1037 is built to meet the demands of timing system repair on Lexus and Toyota engines.