Since 1921, Cloyes has been the trusted leader in automotive timing systems. As a critical component of the engine's timing system, the camshaft sprockets work in unison with the timing chain, tensioners, guides, and other sprockets, to ensure precise timing. Cloyes engine timing crankshaft sprockets are precision-tooled with exact tooth geometry and a perfectly matched bore 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.
  • Features precision-tooled tooth form, bore, off-set and timing index for superior fit, reliability, and long-term performance in engine timing repairs
  • CAD designed and manufactured using premium materials and heat-treated 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
  • 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

Application Summary:

Year Make/Model
1971-1973 Buick Centurion
1973-1974 Buick Century
1967-1976 Buick Electra
1970-1976 Buick Estate Wagon
1967 Buick Gran Sport
1968-1969 Buick GS 400
1970-1972 Buick GS 455
1970-1976 Buick LeSabre
1973-1974 Buick Regal
1967-1976 Buick Riviera
1967-1968 Buick Skylark
1970-1971 Buick Skylark
1968 Buick Sportwagon
1970 Buick Sportwagon
1967-1970 Buick Wildcat

This item is a component of the following packages: C-3083

Attributes
ASIN B000C0BPHA
Adjustable No
Category Camshafts and Valvetrain
Chain Row Quantity 1
Color Black
Country of Origin (Primary) US
Emission Code Legal US
GTIN 00750385102676
Harmonized Tariff Code (Schedule B) 8483901000
Hazardous Material Code N
Inside Diameter 57.404
Keyway Notch No
Life Cycle Status Code Available to Order
Material Metal
Meets or Exceeds Original Equipment Manufacture Specifications Yes
Mount Hole Diameter 2.26", 2.26"
Mount Hole Quantity 1
Mounting Hole Diameter (uom:in) 2.2599999999999998
Mounting Hole Diameter (uom:mm) 57.404
Mounting Hole Quantity 1
Original Equipment Replacement Yes
Outside Diameter 5.69", 5.69"
Outside Diameter (in) 5.69"
Outside Diameter (uom:in) 5.69
Outside Diameter (uom:mm) 144.526
SDR Required Flag N
Series Engine Timing Camshaft Gears
Subcategory Timing Gears
Thickness 0.49"
Thrust Bearing Included N/A
Timing Mark Quantity 1
Tooth Quantity 36
Tooth Width 0.41", 0.41"
Tooth Width (in) 0.41"
Tooth Width (uom:in) 0.41
Tooth Width (uom:mm) 10.414
Universal Or Specific Fit Specific
Width (uom:in) 0.49
Width (uom:mm) 12.446

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Cloyes S398T Engine Timing Camshaft Sprocket

Product Information

  • Brand: Cloyes
  • Product Number: S398T
  • Availability: Call for Availability

This item is a component of the following packages: C-3083

Vehicle Fitment