OE Quality
60-Day Returns

Dorman 03091 Exhaust Manifold Bolt and Spring - Front
Durable Exhaust Manifold Bolt and Spring for Select GM Vehicles
The Dorman 03091 Exhaust Manifold Bolt and Spring is designed specifically for a range of Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. This replacement hardware ensures secure exhaust manifold attachment with reliable metal spring tension and a pilot point fastener for precise installation.
- Includes 1 stud, 1 conical metal spring, and 1 lock nut
- Standard replacement grade for dependable performance
- Features a pilot point fastener for accurate alignment
- Designed for specific fitment on GM vehicles including Bonneville, DeVille, and Grand Am
- Metal spring material provides consistent tension and durability
Product Details and Specifications
The Dorman 03091 exhaust manifold bolt and spring set is engineered as a standard replacement part to maintain the integrity of the exhaust system on select General Motors vehicles. The metal spring included in the package offers reliable tension to prevent loosening caused by engine vibrations and thermal expansion. The pilot point fastener design aids in easy and precise installation, reducing the risk of cross-threading or misalignment. This kit contains one stud, one conical spring, and one lock nut, providing all necessary components for a secure exhaust manifold connection.
Compatible Vehicles and Applications
This exhaust manifold bolt and spring is compatible with specific models from Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac. Key compatible models include the Buick LeSabre and Century, Cadillac Eldorado and Seville, Chevrolet Cavalier and Corsica, Oldsmobile Firenza and Cutlass, and Pontiac Grand Am and Sunbird. The part number 03091 is tailored to fit these vehicles, ensuring proper fit and function within the exhaust hardware assembly.
- Prevents exhaust manifold leaks caused by loose or damaged bolts
- Replaces worn or corroded exhaust manifold fasteners
- Maintains proper exhaust system alignment and sealing
- Reduces risk of exhaust noise and emissions issues
- Helps avoid engine performance problems related to exhaust leaks
Installation Notes and Tips
When installing the Dorman 03091 exhaust manifold bolt and spring, ensure the mating surfaces are clean and free of debris. Use proper torque specifications as outlined in the vehicle service manual to avoid over-tightening or stripping threads. The pilot point fastener design assists in aligning the stud during installation, which helps prevent cross-threading. It is recommended to replace all exhaust manifold hardware in sets to maintain even tension and secure sealing.
Quality Assurance and Warranty
Dorman provides this exhaust manifold bolt and spring as a standard replacement part manufactured to meet or exceed OEM specifications. The metal spring material and lock nut are designed for durability under typical exhaust system conditions. While no specific warranty details are provided, Dorman parts generally come with a limited warranty against defects in material and workmanship, supporting reliable long-term use in compatible Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac vehicles.
| Brand | Dorman |
| Part Number | 03091 |
| Dog Point Fastener | No |
| Item Grade | Standard Replacement |
| Package Contents | 1 Stud; 1 Conical Spring and 1 Lock Nut |
| Pilot Point Fastener | Yes |
| Spring Material | Metal |
| Universal Or Specific Fit | Specific |
This part fits 93 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1991 | Buick | LeSabre | Front | Fits various models and years. | ||
| 1991 | Buick | Park Avenue | Front | Fits various models and years. | ||
| 1991 | Buick | Reatta | Front | Fits various models and years. | ||
| 1991 | Buick | Riviera | Front | Fits various models and years. | ||
| 1991 | Cadillac | Commercial Chassis | Front | Fits various models and years. | ||
| 1991 | Cadillac | DeVille | Front | Fits various models and years. | ||
| 1991 | Cadillac | Fleetwood | Front | Fits various models and years. | ||
| 1991 | Chevrolet | Cavalier | Front | Fits various models and years. | ||
| 1991 | Chevrolet | Corsica | Front | Fits various models and years. | ||
| 1991 | Oldsmobile | 98 | Front | Fits various models and years. | ||
| 1991 | Oldsmobile | Delta 88 | Front | Fits various models and years. | ||
| 1991 | Oldsmobile | Toronado | Front | Fits various models and years. | ||
| 1991 | Pontiac | Bonneville | Front | Fits various models and years. | ||
| 1991 | Pontiac | Sunbird | Front | Fits various models and years. | ||
| 1990 | Buick | LeSabre | 3.8L | V6 | Front | Fits various models and years. |
| 1990 | Buick | Reatta | Front | Fits various models and years. | ||
| 1990 | Buick | Riviera | Front | Fits various models and years. | ||
| 1990 | Cadillac | Commercial Chassis | Front | Fits various models and years. | ||
| 1990 | Cadillac | DeVille | Front | Fits various models and years. | ||
| 1990 | Cadillac | Fleetwood | Front | Fits various models and years. | ||
| 1990 | Chevrolet | Cavalier | Front | Fits various models and years. | ||
| 1990 | Chevrolet | Corsica | Front | Fits various models and years. | ||
| 1990 | Oldsmobile | 98 | Front | Fits various models and years. | ||
| 1990 | Oldsmobile | Delta 88 | Front | Fits various models and years. | ||
| 1990 | Oldsmobile | Toronado | Front | Fits various models and years. | ||
| 1990 | Pontiac | Bonneville | Front | Fits various models and years. | ||
| 1990 | Pontiac | Sunbird | Front | Fits various models and years. | ||
| 1989 | Buick | LeSabre | 3.8L | V6 | Front | Fits various models and years. |
| 1989 | Buick | Reatta | Front | Fits various models and years. | ||
| 1989 | Buick | Riviera | Front | Fits various models and years. | ||
| 1989 | Buick | Skyhawk | Front | Fits various models and years. | ||
| 1989 | Cadillac | Commercial Chassis | Front | Fits various models and years. | ||
| 1989 | Cadillac | DeVille | Front | Fits various models and years. | ||
| 1989 | Cadillac | Fleetwood | Front | Fits various models and years. | ||
| 1989 | Chevrolet | Cavalier | 2.0L | L4 | Front | Fits various models and years. |
| 1989 | Chevrolet | Corsica | Front | Fits various models and years. | ||
| 1989 | Oldsmobile | 98 | Front | Fits various models and years. | ||
| 1989 | Oldsmobile | Delta 88 | Front | Fits various models and years. | ||
| 1989 | Oldsmobile | Toronado | Front | Fits various models and years. | ||
| 1989 | Pontiac | Bonneville | Front | Fits various models and years. | ||
| 1989 | Pontiac | Grand Am | 2.0L | L4 | Front | Fits various models and years. |
| 1989 | Pontiac | Sunbird | Front | Fits various models and years. | ||
| 1988 | Buick | Century | 3.8L | V6 | Front | Fits various models and years. |
| 1988 | Buick | LeSabre | 3.8L | V6 | Front | Fits various models and years. |
| 1988 | Buick | Reatta | Front | Fits various models and years. | ||
| 1988 | Buick | Riviera | Front | Fits various models and years. | ||
| 1988 | Buick | Skyhawk | Front | Fits various models and years. | ||
| 1988 | Cadillac | Commercial Chassis | Front | Fits various models and years. | ||
| 1988 | Cadillac | DeVille | Front | Fits various models and years. | ||
| 1988 | Cadillac | Fleetwood | Front | Fits various models and years. | ||
| 1988 | Chevrolet | Cavalier | 2.0L | L4 | Front | Fits various models and years. |
| 1988 | Chevrolet | Corsica | Front | Fits various models and years. | ||
| 1988 | Oldsmobile | 98 | Front | Fits various models and years. | ||
| 1988 | Oldsmobile | Delta 88 | Front | Fits various models and years. | ||
| 1988 | Oldsmobile | Firenza | Front | Fits various models and years. | ||
| 1988 | Oldsmobile | Toronado | Front | Fits various models and years. | ||
| 1988 | Pontiac | Bonneville | Front | Fits various models and years. | ||
| 1988 | Pontiac | Grand Am | 2.0L | L4 | Front | Fits various models and years. |
| 1988 | Pontiac | Sunbird | Front | Fits various models and years. | ||
| 1987 | Buick | Century | 3.8L | V6 | Front | Fits various models and years. |
| 1987 | Buick | LeSabre | 3.8L | V6 | Front | Fits various models and years. |
| 1987 | Buick | Skyhawk | Front | Fits various models and years. | ||
| 1987 | Cadillac | Commercial Chassis | Front | Fits various models and years. | ||
| 1987 | Cadillac | DeVille | Front | Fits various models and years. | ||
| 1987 | Cadillac | Eldorado | Front | Fits various models and years. | ||
| 1987 | Cadillac | Fleetwood | Front | Fits various models and years. | ||
| 1987 | Cadillac | Seville | Front | Fits various models and years. | ||
| 1987 | Chevrolet | Cavalier | 2.0L | L4 | Front | Fits various models and years. |
| 1987 | Chevrolet | Corsica | Front | Fits various models and years. | ||
| 1987 | Oldsmobile | 98 | Front | Fits various models and years. | ||
| 1987 | Oldsmobile | Delta 88 | Front | Fits various models and years. | ||
| 1987 | Oldsmobile | Firenza | 2.0L | L4 | Front | Fits various models and years. |
| 1987 | Pontiac | Bonneville | Front | Fits various models and years. | ||
| 1987 | Pontiac | Grand Am | 2.0L | L4 | Front | Fits various models and years. |
| 1987 | Pontiac | Sunbird | Front | Fits various models and years. | ||
| 1986 | Buick | Century | 3.8L | V6 | Front | Fits various models and years. |
| 1986 | Buick | LeSabre | 3.8L | V6 | Front | Fits various models and years. |
| 1986 | Buick | LeSabre | 3.0L | V6 | Front | Fits various models and years. |
| 1986 | Buick | Skyhawk | Front | Fits various models and years. | ||
| 1986 | Cadillac | Cimarron | 2.0L | L4 | Front | Fits various models and years. |
| 1986 | Cadillac | Commercial Chassis | Front | Fits various models and years. | ||
| 1986 | Cadillac | DeVille | Front | Fits various models and years. | ||
| 1986 | Cadillac | Eldorado | Front | Fits various models and years. | ||
| 1986 | Cadillac | Fleetwood | 4.1L | V8 | Front | Fits various models and years. |
| 1986 | Cadillac | Seville | Front | Fits various models and years. | ||
| 1986 | Chevrolet | Cavalier | 2.0L | L4 | Front | Fits various models and years. |
| 1986 | Oldsmobile | 98 | Front | Fits various models and years. | ||
| 1986 | Oldsmobile | Delta 88 | Front | Fits various models and years. | ||
| 1986 | Oldsmobile | Firenza | 2.0L | L4 | Front | Fits various models and years. |
| 1986 | Oldsmobile | Firenza | 1.8L | L4 | Front | Fits various models and years. |
| 1986 | Pontiac | Bonneville | 3.8L | V6 | Front | Fits various models and years. |
| 1986 | Pontiac | Sunbird | 2.0L | L4 | Front | Fits various models and years. |
| 1986 | Pontiac | Sunbird | 1.8L | L4 | Front | Fits various models and years. |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.