Elring 257.910 Engine Cylinder Head Bolt Set

Engine Cylinder Head Bolt Set for GM and Saab Applications

Elring 257.910 is an engine cylinder head bolt set built for applications that use M11 x 1.5 x 162 mm male hex head bolts. This hardware is specified across a wide range of Buick, Chevrolet, Cadillac, GMC, Pontiac, Saturn, Saab, and Oldsmobile vehicles, including Buick Envision, Chevrolet Malibu, and Saab 9-3 fitments.

Key Features

• Engine cylinder head bolt set from Elring
• Part number 257.910
• Male hex bolt head/nut design
• M11 x 1.5 x 162 mm thread specification
• Direct fitment coverage for many GM and Saab engine applications
• Cross-references MAHLE GS33434 for the same application

Product Details

Elring 257.910 is a cylinder head bolt set used in engine hardware service where the original fasteners require the same thread size, pitch, length, and head design. The M11 x 1.5 x 162 mm specification is critical for proper clamping force and correct head installation on engines found in vehicles such as Chevrolet Equinox, Buick LaCrosse, Cadillac CTS, and Saab 9-5. If you are searching for an Elring 257.910 cylinder head bolt set for a Buick Envision or Chevrolet Malibu, this listing matches the documented fitment data.

What This Part Helps Address

• Replacing stretched or torque-to-yield cylinder head bolts
• Restoring proper cylinder head clamping during engine service
• Correcting fastener wear, corrosion, or thread damage
• Supporting head gasket replacement procedures that require new head bolts

Installation Notes and Tips

• Verify the engine’s required bolt length, thread size, and pitch before installation.
• Confirm the male hex head design matches the original fastener style.
• Follow the vehicle manufacturer’s tightening sequence and torque specifications exactly.
• Inspect the cylinder head and block surfaces before installing new hardware.
• Use the confirmed fitment data for your specific year, make, and model; examples include Fits 2016-2019 Buick Envision, N/A and Fits 2004-2019 Chevrolet Malibu, N/A.

Quality Assurance

Elring is a recognized engine sealing and hardware brand used in OE-style repair applications. Part number 257.910 is listed with confirmed interchange references and documented vehicle fitment for GM and Saab platforms, including Buick, Chevrolet, Cadillac, GMC, Pontiac, Saturn, Saab, and Oldsmobile models.