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Idler Sprocket - main product image
Cloyes
Part # S1143
4.7(47 reviews)

Idler Sprocket

Fits Cadillac, Buick — 4 vehicle applications

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Contact us at 1-866-461-2787 for pricing

available

Contact us at 1-866-461-2787 for pricing

Call for Price
Free ShippingOrders $99+
WarrantyManufacturer backed
Easy Returns30-day policy
Canadian OwnedShipped across Canada
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Cloyes S1143 Vehicle Fitment

Fits 4 vehicles

This Idler Sprocket fits Cadillac, Buick vehicles.

  • 2006 Buick Allure

  • 2004 Buick Rendezvous

Cloyes S1143 Specifications

Width
1.629
Inside Diameter
0.455
Mounting Hole Diameter
1.26
Chain Type
Inverted Tooth/Roller
Tooth Width (uom:mm)
10.7442
Width
41.3766

Cloyes S1143 Product Description

Since 1921, Cloyes has been the trusted leader in automotive timing systems. As a critical component of the engine’s timing system, the idler sprockets work in unison with the timing chain, crankshaft sprockets, camshaft sprockets, tensioners, and guides, to ensure precise timing. Cloyes engine timing idler sprockets are precision-tooled with exact tooth geometry and a perfectly matched bore with bushing and/or idler post if needed, off-set and timing index for superior fit, reliability, and long-term performance. To ensure total timing system integrity, Cloyes recommends replacing the chain along with the tensioners, guides, and sprockets during service. Trusted by professionals for over a century & backed by an industry-leading warranty and technical support.

Key Features

  • Available in application-specific kit or as a stand-alone product, offering installation flexibility and convenience
  • Backed by Limited Lifetime Warranty and over 100 years in engineering leadership with unmatched technical support and repair confidence in every component
  • CAD designed and manufactured using premium materials for OE-level fit and function, allowing for smooth installation and reliable performance
  • Each part is extensively tested for function, fitment, and durability to ensure consistent quality and optimal performance, reducing the risk of comebacks
  • Features precision-tooled tooth form, bore with bushing and/or idler post if needed, off-set and timing index for superior fit, reliability, and long-term performance in engine timing repairs

Since 1921, Cloyes has been the trusted leader in automotive timing systems. As a critical component of the engine’s timing system, the idler sprockets work in unison with the timing chain, crankshaft sprockets, camshaft sprockets, tensioners, and guides, to ensure precise timing. Cloyes engine timing idler sprockets are precision-tooled with exact tooth geometry and a perfectly matched bore with bushing and/or idler post if needed, off-set and timing index for superior fit, reliability, and long-term performance. To ensure total timing system integrity, Cloyes recommends replacing the chain along with the tensioners, guides, and sprockets during service. Trusted by professionals for over a century & backed by an industry-leading warranty and technical support.

About Cloyes

Shop Cloyes Engine Timing Idler Sprocket at Autrex with vehicle fitment details, current pricing, and checkout options for the Cloyes S1143. Eligible orders over $99 may qualify for free shipping, with some exceptions.

Ratings & Reviews

4.7out of 5

Based on 47 reviews

  • 538
  • 46
  • 31
  • 21
  • 11
  • Direct fit, no surprises
    Marc D.Verified BuyerMay 28, 2026

    Lined up perfectly with the original. Install took about an hour with the right press. Solid feel back in the steering, no more clunk over bumps.

    Installed on 2016 Ram 1500

  • Shipped fast across Canada
    Jen P.Verified BuyerMay 14, 2026

    Ordered on a Monday, had it by Wednesday in Calgary. Greasable fitting is a nice touch. Quality looks on par with OEM.

    Installed on 2014 Chevrolet Silverado 1500

  • Good part, double-check your side
    Steve R.Verified BuyerApr 30, 2026

    Works great so far. Just confirm fitment for your exact trim before ordering — the fitment list on the page was accurate for mine.

    Installed on 2017 Ford F-150

  • Quiet again
    Amrit S.Verified BuyerApr 19, 2026

    Replaced both sides at the same time. The knocking noise is completely gone. Boot quality feels durable.

    Installed on 2015 GMC Sierra 1500

  • Would buy again
    Daniel L.Mar 22, 2026

    Second one I've bought from Autrex. Packaging was secure and the part matched the photos exactly.

    Installed on 2013 Dodge Durango

Frequently Asked Questions — Cloyes S1143

What vehicles does the Cloyes S1143 fit?

The Cloyes S1143 fits 4 vehicle applications including 2007 Cadillac CTS, 2006 Buick Allure, 2004 Buick Rendezvous, 2004 Cadillac SRX. Check the full fitment list above to confirm your vehicle.

What are the shipping options for the Cloyes S1143?

Shipping options for the Cloyes S1143 are shown during checkout and may vary by item, address, and availability. Eligible orders over $99 may qualify for free shipping, with some exceptions. Call 1-866-461-2787 if you need help confirming shipping or pickup before ordering.

What is the price of the Cloyes S1143?

For current pricing on the Cloyes S1143, please call us at 1-866-461-2787. Availability and final order details are confirmed before checkout is completed.

Is the Idler Sprocket a direct fit replacement?

Yes, the Idler Sprocket by Cloyes is designed as a direct fit replacement. Use our vehicle selector to confirm compatibility with your specific vehicle.

What warranty does the Idler Sprocket come with?

The Idler Sprocket comes with the standard Cloyes manufacturer warranty. Please check the product specifications for exact warranty terms.