# Cloyes S391 Crankshaft Sprocket for 1967-1991 Buick Century

### Specifications

Adjustable: No

Chain Row Quantity: 1

Color: Gold

Inside Diameter: 1.25"

Keyway Notch: Yes

Material: Metal

Meets or Exceeds Original Equipment Manufacture Specifications: Yes

Mount Hole Diameter: 1.25"

Mount Hole Quantity: 1

Original Equipment Replacement: Yes

Outside Diameter: 2.81"

Thickness: 0.52"

Tooth Quantity: 18

Tooth Width: 0.41"

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 (S391) 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: S391

UPC: 750385102560

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1977-1981

Buick

Century

1978, 1982

Buick

Le Sabre

1977-1987

Buick

Regal

1977-1979

Buick

Skylark

1969

Checker

Deluxe

1967-1975, 1981

Chevy

Bel Air

1967-1972

Chevy

Biscayne

1969-1987

Chevy

Blazer

1967-1991

Chevy

Camaro

1967-1991

Chevy

Caprice

1967-1973

Chevy

Chevelle

1967-1968

Chevy

Chevy II

1967-1988

Chevy

CK Pickup

1967-1982, 1984-1991

Chevy

Corvette

1967-1987

Chevy

El Camino

1968-1988

Chevy

G-Series

1967-1985

Chevy

Impala

1967, 1973-1983

Chevy

Malibu

1970-1988

Chevy

Monte Carlo

1969-1979

Chevy

Nova

1968-1984

Chevy

P-Series

1968-1987

Chevy

Suburban

1967-1988

GMC

CK Pickup

1967-1988

GMC

G-Series

1970-1987

GMC

Jimmy

1967-1984

GMC

P-Series

1968-1987

GMC

Suburban

1978-1983, 1985-1987

Oldsmobile

Cutlass

1977, 1981-1982

Oldsmobile

Eighty-Eight

1983-1986

Pontiac

Bonneville

1980-1981

Pontiac

Catalina

1977-1991

Pontiac

Firebird

1978-1980

Pontiac

Grand Am

1978-1986

Pontiac

Grand Prix

1977-1983

Pontiac

LeMans

1978-1979

Pontiac

Sunbird

### 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 S391.

**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
-   S391 fitment
-   Cloyes Crankshaft Sprocket
-   1977 Buick Century Crankshaft Sprocket

## Details

- **Price:** 6.54 CAD
- **Vendor:** Cloyes
- **Type:** Crankshaft Sprocket
- **Tags:** 1967, 1967-1968 Chevy Chevy II, 1967-1972 Chevy Biscayne, 1967-1973 Chevy Chevelle, 1967-1975, 1967-1982, 1967-1984 GMC P-Series, 1967-1985 Chevy Impala, 1967-1987 Chevy El Camino, 1967-1988 Chevy CK Pickup, 1967-1988 GMC CK Pickup, 1967-1988 GMC G-Series, 1967-1991 Chevy Camaro, 1967-1991 Chevy Caprice, 1968-1984 Chevy P-Series, 1968-1987 Chevy Suburban, 1968-1987 GMC Suburban, 1968-1988 Chevy G-Series, 1969 Checker Deluxe, 1969-1979 Chevy Nova, 1969-1987 Chevy Blazer, 1970-1987 GMC Jimmy, 1970-1988 Chevy Monte Carlo, 1973-1983 Chevy Malibu, 1977, 1977-1979 Buick Skylark, 1977-1981 Buick Century, 1977-1983 Pontiac LeMans, 1977-1987 Buick Regal, 1977-1991 Pontiac Firebird, 1978, 1978-1979 Pontiac Sunbird, 1978-1980 Pontiac Grand Am, 1978-1983, 1978-1986 Pontiac Grand Prix, 1980-1981 Pontiac Catalina, 1981 Chevy Bel Air, 1981-1982 Oldsmobile Eighty-Eight, 1982 Buick Le Sabre, 1983-1986 Pontiac Bonneville, 1984-1991 Chevy Corvette, 1985-1987 Oldsmobile Cutlass, Automotive, Cloyes, Crankshaft Sprocket, S391

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 6.54 CAD | In stock |

## Images

- Cloyes S391 Crankshaft Sprocket for 1967-1991 Buick Century

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/cloyes-s391-crankshaft-sprocket)
> Updated: 2026-08-17