Mahle GS33543 Engine Cylinder Head Bolt Set

Mahle GS33543 Cylinder Head Bolt Set

The Mahle GS33543 engine cylinder head bolt set is built for OE-standard service on select Ford, Lincoln, Mazda, and Mercury applications. It includes steel bolts with washers and uses a torque-to-yield design for controlled clamping during cylinder head service.

Key Features

• OE Standard engine cylinder head bolt set
• Steel fastener construction with 6-point hex head bolts
• Torque-to-yield design for proper head gasket clamping
• Washers included for the specified application
• Mahle sealing and hardware quality for engine repair work

Product Details

Mahle GS33543 is an engine cylinder head bolt set engineered for applications that require torque-to-yield fasteners and washer-equipped installation. The bolts follow the listed multi-stage torque specification: Stage 1 at 177 lb-in, Stage 2 at 26 lb-ft, then 90 degrees for Stage 3 and Stage 4. This part number is used in service work where accurate clamping force is critical to cylinder head sealing. Mahle GS33543 is a direct-fit hardware solution for select Ford Mustang, Ford Edge, Ford Flex, Ford Taurus, Ford Taurus X, Lincoln MKX, Lincoln MKS, Lincoln MKZ, Mercury Sable, Mazda CX-9, and Mazda 6 applications.

This part cross-references FEL-PRO ES 71320 for the same application.

Common Repair Uses

• Replacing stretched or torque-to-yield cylinder head bolts during head gasket service
• Restoring proper cylinder head clamping after engine teardown
• Addressing coolant loss or combustion sealing issues tied to worn head fasteners
• Supporting reassembly after cylinder head machining or gasket replacement
• Servicing engines that require washer-equipped steel head bolts

Installation Notes

• Follow the exact torque sequence and stages specified for the engine
• Torque-to-yield bolts are not reused after removal
• Verify cylinder head and block surfaces are clean and flat before assembly
• Use the correct service manual procedure for the specific Ford, Lincoln, Mazda, or Mercury engine
• Confirm fitment by year, make, and model before installation

Quality Assurance

Mahle supplies sealing and engine hardware products used by OEMs and technicians worldwide. GS33543 is an OEM-standard cylinder head bolt set built to meet the demands of engine repair and reassembly.