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Cloyes S1043 Engine Timing Crankshaft Sprocket
| Brand | Cloyes S1043 |
|---|---|
| Material | Metal |
| Keyway Adjustable | 0 |
| Inside Diameter | 1.104 |
| Inside Diameter | 28.0416 |
| Thickness | 0 |
| Outside Diameter | 2.059 |
| Outside Diameter | 52.2986 |
| Tooth Quantity | 27 |
| Keyway Quantity | 0 |
| Chain Row Quantity | 2 |
| Chain Type | Inverted tooth |
| Keyway Notch | Yes |
| Mounting Hole Diameter (uom:in) | 1.104 |
| Mounting Hole Diameter (uom:mm) | 28.0416 |
| Mounting Hole Quantity | 1 |
| Timing Mark Quantity | 1 |
| Tooth Width (uom:in) | 0.2465 |
| Tooth Width (uom:mm) | 6.2611 |
| Width (uom:in) | 0.8415 |
| Width (uom:mm) | 21.3741 |
| Product line | Timing Crankshaft Sprocket |
| Fits | Buick, Chevrolet, and GMC · 35 vehicles |
Precision-tooled design. Exact tooth geometry and a matched bore help deliver reliable timing.
Metal construction. Built from metal for durable engine timing performance.
Timing system component. Works with the chain, tensioners, guides, and sprockets for precise timing.
Cross-references Cloyes S1043 and 12664050 for the same application. See all 2.
Cloyes S1043 Timing Crankshaft Sprocket
The Cloyes S1043 timing crankshaft sprocket is a precision-engineered engine timing component built for exact tooth geometry, bore alignment, and timing index. It works with the timing chain system to maintain accurate crankshaft-to-camshaft synchronization in select Chevrolet, GMC, and Buick applications.
Key Features
- Engine timing crankshaft sprocket for the valve train system
- Precision-tooled metal construction
- 27 teeth with inverted tooth chain type
- Single timing mark for accurate alignment during service
- 1.104 in. inside diameter and 2.059 in. outside diameter
- Keyway notch design with one mounting hole
- Fits select 2016-2022 Chevrolet Malibu, Spark, Cruze, Volt, Equinox, Trax; 2018-2022 GMC Terrain; and 2021 Buick Encore applications
Product Details
Cloyes timing crankshaft sprockets are built to work in unison with the timing chain, tensioners, guides, and related sprockets to preserve engine timing accuracy. The S1043 uses exact tooth geometry, a matched bore, and correct offset and timing index to support proper fitment and long-term performance. This part cross-references GM 12664050 for the same application. The Cloyes S1043 is a direct-fit timing crankshaft sprocket for select Chevrolet Malibu, Chevrolet Spark, and GMC Terrain timing service applications, along with other listed GM vehicles.
Common Problems This Part Helps Address
- Worn or damaged crankshaft sprocket teeth
- Timing chain indexing issues during engine service
- Noise or irregular operation from timing system wear
- Incorrect chain engagement caused by sprocket wear
- Loss of timing accuracy in the crankshaft drive system
Installation Notes and Tips
Inspect the full timing system before installation. Cloyes recommends replacing the chain, tensioners, guides, and sprockets together during timing service to maintain system integrity. Verify tooth count, bore dimensions, and timing mark alignment before assembly. Confirm vehicle application by year, make, and model before ordering, including 2016-2022 Chevrolet Malibu, 2016-2022 Chevrolet Spark, and 2018-2022 GMC Terrain listings.
Quality Assurance
Cloyes has specialized in automotive timing systems since 1921 and supplies timing components engineered for precise fit and dependable operation. The S1043 is backed by Cloyes technical support and an industry-leading warranty.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2022 | Chevrolet | Equinox | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2022 | Chevrolet | Malibu | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2022 | Chevrolet | Spark | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2022 | Chevrolet | Trax | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2022 | GMC | Terrain | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2021 | Buick | Encore | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2021 | Chevrolet | Equinox | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2021 | Chevrolet | Malibu | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2021 | Chevrolet | Spark | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2021 | Chevrolet | Trax | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2021 | GMC | Terrain | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2020 | Chevrolet | Equinox | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2020 | Chevrolet | Malibu | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2020 | Chevrolet | Spark | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2020 | GMC | Terrain | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2019 | Chevrolet | Cruze | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2019 | Chevrolet | Equinox | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2019 | Chevrolet | Malibu | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2019 | Chevrolet | Spark | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2019 | Chevrolet | Volt | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2019 | GMC | Terrain | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2018 | Chevrolet | Cruze | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2018 | Chevrolet | Equinox | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2018 | Chevrolet | Malibu | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2018 | Chevrolet | Spark | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2018 | Chevrolet | Volt | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2018 | GMC | Terrain | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2017 | Chevrolet | Cruze | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2017 | Chevrolet | Malibu | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2017 | Chevrolet | Spark | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2017 | Chevrolet | Volt | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2016 | Chevrolet | Cruze | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2016 | Chevrolet | Malibu | 1.5L | L4 | Timing Crankshaft Sprocket |
| 2016 | Chevrolet | Spark | 1.4L | L4 | Timing Crankshaft Sprocket |
| 2016 | Chevrolet | Volt | 1.5L | L4 | Timing Crankshaft Sprocket |
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