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MahlePart #: GS33233
Mahle GS33233 Engine Cylinder Head Bolt Set
80 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Buick, Chevrolet, Oldsmobile, and Pontiac, 88, 98, Achieva, Bonneville, Century, Cutlass Calais, Cutlass Ciera, Cutlass Cruiser, Delta 88, Grand Am, LeSabre, Lumina APV, Park Avenue, Reatta, Regal, Riviera, Silhouette, Skylark, Toronado, and Trans Sport
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Not what you need? See all Engine Cylinder Head Bolt Set options
Mahle GS33233 Cylinder Head Bolt Set
The Mahle GS33233 engine cylinder head bolt set is an OEM-standard fastening solution for engine rebuild and repair work. Built with steel fasteners and a hex head style, it supports secure cylinder head installation on a wide range of GM vehicles, including Buick, Oldsmobile, Pontiac, and Chevrolet applications.
Key Features
- OEM Standard grade for factory-style service replacement
- Steel fastener material for engine hardware applications
- Hex head style for straightforward tool engagement
- Bolt-style fasteners for cylinder head service
- Washer-free design where washers are not required
- Mahle sealing and engine hardware expertise trusted by OEMs and technicians
Detailed Description
Mahle GS33233 is an engine cylinder head bolt set built for secure fastening during cylinder head installation and engine repair. This part number is used across multiple GM platforms, including Fits 1991-1995 Buick LeSabre, N/A; Fits 1991-1995 Buick Park Avenue, N/A; Fits 1990-1995 Buick Regal, N/A; and Fits 1991-1995 Pontiac Bonneville, N/A. It also covers additional applications such as Buick Century, Oldsmobile Cutlass Ciera, and Pontiac Grand Am, making GS33233 a practical choice for service work where correct head bolt hardware is required. This part cross-references FEL-PRO (e.g., ES 72167, ES 74031) for the same application.
What This Part Helps Address
- Loose or stretched cylinder head fasteners during engine service
- Head gasket sealing issues caused by worn hardware
- Improper clamping force after cylinder head removal
- Corrosion or fatigue in original engine bolts
- Repeat repair work from reusing non-serviceable fasteners
Installation Notes and Tips
Verify engine code and application details before installation, since this part fits various engine types within the listed Buick, Oldsmobile, Pontiac, and Chevrolet models. Clean threaded holes thoroughly, inspect the cylinder head and block surfaces, and follow the vehicle manufacturer’s tightening sequence and torque specifications. Replace fasteners only with the correct engine hardware for the application, and confirm that no washers are required for this design.
Quality Assurance
Mahle is known for OEM-focused sealing and engine hardware products used by technicians and vehicle manufacturers. GS33233 is an OEM-standard part built to support proper cylinder head fastening in service applications.
| Brand | Mahle |
|---|---|
| Part Number | GS33233 |
| Additional Package Contents | None |
| Fastener Head Style | Hex |
| Fastener Material | Steel |
| Fastener Style | Bolt |
| Item Grade | Oem standard |
| Washers Included | Not required |
This part fits 80 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1995 | Buick | LeSabre | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1995 | Buick | Park Avenue | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1995 | Buick | Regal | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1995 | Buick | Riviera | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1995 | Chevrolet | Lumina APV | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1995 | Oldsmobile | 88 | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1995 | Oldsmobile | 98 | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1995 | Oldsmobile | Silhouette | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1995 | Pontiac | Bonneville | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1995 | Pontiac | Trans Sport | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1994 | Buick | LeSabre | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1994 | Buick | Park Avenue | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1994 | Buick | Regal | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1994 | Chevrolet | Lumina APV | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1994 | Oldsmobile | 88 | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1994 | Oldsmobile | 98 | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1994 | Oldsmobile | Silhouette | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1994 | Pontiac | Bonneville | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1994 | Pontiac | Trans Sport | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Buick | Century | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Buick | LeSabre | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Buick | Park Avenue | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Buick | Regal | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Buick | Riviera | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Buick | Skylark | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Chevrolet | Lumina APV | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Oldsmobile | 88 | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Oldsmobile | 98 | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Oldsmobile | Achieva | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Oldsmobile | Cutlass Ciera | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Oldsmobile | Cutlass Cruiser | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Oldsmobile | Silhouette | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Pontiac | Bonneville | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Pontiac | Grand Am | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1993 | Pontiac | Trans Sport | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Buick | Century | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Buick | LeSabre | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Buick | Park Avenue | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Buick | Regal | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Buick | Riviera | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Buick | Skylark | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Chevrolet | Lumina APV | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Oldsmobile | 88 | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Oldsmobile | 98 | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Oldsmobile | Achieva | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Oldsmobile | Cutlass Ciera | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Oldsmobile | Cutlass Cruiser | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Oldsmobile | Silhouette | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Oldsmobile | Toronado | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Pontiac | Bonneville | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Pontiac | Grand Am | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1992 | Pontiac | Trans Sport | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Buick | Century | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Buick | LeSabre | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Buick | Park Avenue | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Buick | Reatta | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Buick | Regal | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Buick | Riviera | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Buick | Skylark | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Oldsmobile | 98 | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Oldsmobile | Cutlass Calais | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Oldsmobile | Cutlass Ciera | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Oldsmobile | Cutlass Cruiser | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Oldsmobile | Delta 88 | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Oldsmobile | Toronado | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1991 | Pontiac | Bonneville | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1990 | Buick | Century | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1990 | Buick | Regal | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1990 | Buick | Skylark | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1990 | Oldsmobile | 98 | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1990 | Oldsmobile | Cutlass Calais | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1990 | Oldsmobile | Cutlass Ciera | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1990 | Oldsmobile | Cutlass Cruiser | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1989 | Buick | Century | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1989 | Buick | Skylark | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1989 | Oldsmobile | 98 | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1989 | Oldsmobile | Cutlass Calais | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1989 | Oldsmobile | Cutlass Ciera | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1989 | Oldsmobile | Cutlass Cruiser | 3.3L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
| 1988 | Oldsmobile | 98 | 3.8L | V6 | N/A | Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set. |
* 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:
ES 72167ES 74031
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.