# Cloyes S621 Crankshaft Sprocket for 1985-1993 Buick Century

### Specifications

Adjustable: No

Chain Row Quantity: 1

Color: Gray

Inside Diameter: 1.37"

Keyway Notch: Yes

Material: Metal

Meets or Exceeds Original Equipment Manufacture Specifications: Yes

Mount Hole Diameter: 1.37"

Mount Hole Quantity: 1

Original Equipment Replacement: Yes

Outside Diameter: 2.38"

Thickness: 1.47"

Tooth Quantity: 20

Tooth Width: 0.52"

Universal or Specific Fit: Specific

### Features

-   Made with precision and quality in mind
-   Designed to meet your specific needs
-   Manufactured to meet or exceed strict quality requirements
-   Designed to deliver trouble-free, consistent performance

### Product Details

Crankshaft Sprocket (S621) by Cloyes®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for a hassle free installation, this reliable product can help you get you vehicle back on the road faster and easier.

Brand: Cloyes

Part Number: S621

UPC: 750385104335

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1986

Buick

Century

1987

Buick

Century

1988

Buick

Century

1989

Buick

Century

1990

Buick

Century

1991

Buick

Century

1992

Buick

Century

1993

Buick

Century

1986

Buick

Electra

1987

Buick

Electra

1986

Buick

Le Sabre

1987

Buick

Le Sabre

1988

Buick

Le Sabre

1985

Buick

Regal

1986

Buick

Riviera

1987

Buick

Riviera

1986

Buick

Skylark

1987

Buick

Skylark

1988

Buick

Skylark

1989

Buick

Skylark

1990

Buick

Skylark

1991

Buick

Skylark

1992

Buick

Skylark

1993

Buick

Skylark

1986

Oldsmobile

Ciera

1987

Oldsmobile

Ciera

1988

Oldsmobile

Ciera

1989

Oldsmobile

Ciera

1990

Oldsmobile

Ciera

1991

Oldsmobile

Ciera

1992

Oldsmobile

Ciera

1993

Oldsmobile

Ciera

1986

Oldsmobile

Cutlass

1987

Oldsmobile

Cutlass

1988

Oldsmobile

Cutlass

1989

Oldsmobile

Cutlass

1990

Oldsmobile

Cutlass

1991

Oldsmobile

Cutlass

1992

Oldsmobile

Cutlass

1993

Oldsmobile

Cutlass

1986

Oldsmobile

Eighty-Eight

1987

Oldsmobile

Eighty-Eight

1986

Oldsmobile

Ninety-Eight

1987

Oldsmobile

Ninety-Eight

1986

Oldsmobile

Toronado

1987

Oldsmobile

Toronado

1987

Pontiac

Bonneville

1988

Pontiac

Bonneville

1985

Pontiac

Grand Am

1986

Pontiac

Grand Am

1987

Pontiac

Grand Am

1992

Pontiac

Grand Am

1993

Pontiac

Grand Am

### FAQ

**Will this fit my vehicle?**  
Please verify your year, make, model, position, and any fitment notes using the Vehicle Fitment Table above before purchase.

**What part number is this?**  
The listed part number is S621.

**Is this product designed for direct replacement?**  
Yes. This product is intended to match the compatible vehicle applications listed in the fitment table.

**Should I confirm fitment before ordering?**  
Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering.

### Common Searches

-   Crankshaft Sprocket for Buick Century
-   S621 fitment
-   Cloyes Crankshaft Sprocket
-   1986 Buick Century Crankshaft Sprocket

## Details

- **Price:** 15.85 CAD
- **Vendor:** Cloyes
- **Type:** Crankshaft Sprocket
- **Tags:** 1985 Buick Regal, 1985-1987, 1986-1987 Buick Electra, 1986-1987 Buick Riviera, 1986-1987 Oldsmobile Eighty-Eight, 1986-1987 Oldsmobile Ninety-Eight, 1986-1987 Oldsmobile Toronado, 1986-1988 Buick Le Sabre, 1986-1993 Buick Century, 1986-1993 Buick Skylark, 1986-1993 Oldsmobile Ciera, 1986-1993 Oldsmobile Cutlass, 1987-1988 Pontiac Bonneville, 1992-1993 Pontiac Grand Am, Automotive, Cloyes, Crankshaft Sprocket, S621

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 15.85 CAD | In stock |

## Images

- Cloyes S621 Crankshaft Sprocket for 1985-1993 Buick Century

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/cloyes-s621-crankshaft-sprocket)
> Updated: 2026-08-18