Mahle GS33377 Engine Cylinder Head Bolt Set

Mahle OEM Standard Cylinder Head Bolt Set

Mahle GS33377 is an OEM-standard engine cylinder head bolt set built with steel fasteners and hex heads for service work that demands proper clamping force and consistent sealing. It includes washers and is backed by Mahle’s gasket and sealing expertise used by technicians and OEMs worldwide.

Key Features

• Engine cylinder head bolt set for head gasket service and top-end repairs
• Steel fasteners with hex head style for standard service-tool installation
• OEM Standard item grade for OE-style fit and function
• Washers included for proper load distribution at the fastener seat
• Mahle GS33377 for direct replacement applications

Application Details

Compatible With a wide range of GM 3.1L and 3.4L V6 applications, including 2005-2009 Chevrolet Equinox, 2006-2009 Pontiac Torrent, 2002-2007 Buick Rendezvous, 2005-2006 Buick Terraza, 2005-2006 Chevrolet Uplander, 1999-2006 Pontiac Montana, 2005-2006 Saturn Relay, 1996-2005 Buick Century, 2000-2005 Chevrolet Impala, 1996-2005 Chevrolet Monte Carlo, 2001-2005 Pontiac Aztek, 1996-2005 Pontiac Grand Am, 1999-2004 Oldsmobile Alero, 1996-2004 Oldsmobile Silhouette, 1997-2003 Chevrolet Malibu, 1996-2003 Pontiac Grand Prix, 1996-2001 Chevrolet Lumina, 1997-1999 Oldsmobile Cutlass, 1996-1999 Pontiac Trans Sport, 1996-1998 Buick Skylark, 1996-1998 Oldsmobile Achieva, 1996-1997 Oldsmobile Cutlass Supreme, 1996 Buick Regal, 1996 Chevrolet Corsica, 1996 Chevrolet Lumina APV, and 1996 Oldsmobile Cutlass Ciera. Mahle GS33377 is also a direct cross-reference for FEL-PRO ES 72892 and ES 74017 for the same application.

What This Part Helps Address

• Head gasket replacement requiring new cylinder head bolts
• Loss of clamp load from reused or stretched fasteners
• Uneven sealing pressure across the cylinder head
• Top-end repair work on GM V6 engines
• Service replacement for worn or corroded head bolts

Installation Notes and Tips

Follow the vehicle service manual for torque sequence, torque stages, and any angle-tightening procedure. Clean the bolt holes, inspect the cylinder head and block surfaces, and replace damaged washers or contaminated hardware before assembly. Verify engine code and application details against the vehicle before installation.

Quality Assurance

Mahle supplies sealing and engine hardware products used by OEMs and professional technicians, and GS33377 is built to OEM-standard specifications for service reliability.