Mahle GS33190 Engine Cylinder Head Bolt Set

Engine Cylinder Head Bolt Set for OE-Style Repairs

Mahle GS33190 is an OEM-standard engine cylinder head bolt set built with steel fasteners and a hex head style for secure cylinder head service. It is a direct-fit hardware solution for a wide range of Chevrolet, GMC, Buick, Oldsmobile, and Pontiac applications, including Chevrolet S10 and GMC Sonoma fitments.

Key Features

• OEM Standard item grade for OE-style service work
• Steel fastener material for engine hardware applications
• Hex head style for conventional torque installation
• Fastener style: bolt
• Washers not required
• Additional package contents: none

Detailed Product Overview

Mahle GS33190 is an engine cylinder head bolt set designed for cylinder head reassembly where proper clamping hardware is required. Mahle is known for sealing and engine service components used by OEMs and technicians, and this set follows that service-focused approach with steel construction and OEM-standard grading. The GS33190 part number is commonly searched for engine repair jobs on Chevrolet S10, GMC Sonoma, and other GM platforms from the 1982-1993 model years.

This part cross-references FEL-PRO ES 72733 and Sealed Power 260-2504 for the same application.

Vehicle Fitment

• Fits 1985-1993 Chevrolet S10, N/A
• Fits 1991-1993 GMC Sonoma, N/A
• Fits 1982-1992 Buick Century, N/A
• Fits 1990-1992 Chevrolet Lumina, N/A
• Fits 1982-1992 Oldsmobile Cutlass Ciera, N/A
• Fits 1987-1992 Oldsmobile Cutlass Cruiser, N/A
• Fits 1982-1991 Pontiac 6000, N/A
• Fits 1985-1990 Chevrolet Astro, N/A
• Fits 1982-1990 Chevrolet Celebrity, N/A
• Fits 1985-1990 GMC S15, N/A
• Fits 1985-1990 GMC Safari, N/A
• Fits 1985-1988 Chevrolet S10 Blazer, N/A
• Fits 1985-1988 GMC S15 Jimmy, N/A
• Fits 1984-1988 Pontiac Fiero, N/A
• Fits 1982-1985 Buick Skylark, N/A
• Fits 1984-1985 Chevrolet Citation II, N/A
• Fits 1982-1984 Oldsmobile Omega, N/A
• Fits 1982-1984 Pontiac Phoenix, N/A
• Fits 1982-1983 Chevrolet Citation, N/A

Common Repair Uses

• Replacing stretched or damaged cylinder head bolts during engine rebuilds
• Restoring proper cylinder head clamping after head gasket service
• Addressing torque retention concerns in high-mileage GM engines
• Supporting reassembly after cylinder head removal on GM compact and mid-size platforms

Installation Notes and Tips

Verify engine code and original hardware specifications before installation, since this listing covers multiple engine types within the same year/make/model ranges. Clean threaded holes, inspect the cylinder head and block surfaces, and follow the manufacturer service procedure and torque sequence for the engine being repaired. The GS33190 uses hex head bolts and does not require washers.

Quality Assurance

Mahle engine sealing and hardware products are used in OEM and professional repair environments, and this cylinder head bolt set is supplied as an OEM-standard replacement part.