Mahle GS33563 Engine Cylinder Head Bolt Set

Engine Cylinder Head Bolt Set for Mercedes-Benz

Restore proper cylinder head clamping with this Mahle engine cylinder head bolt set, part number GS33563. It is built for Mercedes-Benz applications that require torque-to-yield fasteners and OEM-standard replacement hardware.

Key Features

• OEM-standard engine cylinder head bolt set for sealing-critical repairs
• Torque-to-yield design for controlled fastener stretch during tightening
• Steel fasteners with triple square head style
• Engine hardware from Mahle, a brand trusted by OEMs and technicians
• Cross-references Mercedes-Benz 119 990 08 12 and 119 990 09 12 for the same application

Detailed Description

Mahle GS33563 is an engine cylinder head bolt set intended for Mercedes-Benz V8 applications that use the listed engine codes and engine-number breakpoints. This part number is specified for models including Mercedes-Benz S500, SL500, CL500, E420, E500, 400E, 400SE, 400SEL, 400SE, 500E, 500SEC, 500SEL, and 500SL across the covered years. The steel bolt construction and triple square head style support accurate tightening during cylinder head service, while the torque-to-yield design matches the requirements of engines that call for one-time-use head bolts.

Use GS33563 when replacing cylinder head fasteners during head gasket service, cylinder head removal, or other top-end engine repairs on Mercedes-Benz applications with the correct engine code and production range. The part number GS33563 is also referenced by Mercedes-Benz 119 990 08 12 and 119 990 09 12.

What It Is Used For

• Replacing stretched or removed cylinder head bolts during engine repair
• Restoring proper head gasket sealing after cylinder head service
• Addressing coolant loss caused by poor cylinder head clamping
• Correcting compression loss related to fastener wear or reuse
• Supporting accurate reassembly after top-end engine disassembly

Installation Notes and Tips

Verify engine code, engine-number breakpoint, and model coverage before ordering. Torque-to-yield bolts require the correct tightening sequence and torque-angle procedure from the service manual. Inspect the cylinder head and block mating surfaces before installation, and replace any fasteners that were previously stretched or removed.

Quality Assurance

Mahle states that its gaskets and sealing products are trusted by OEMs and technicians worldwide. This part is an OEM-standard replacement engineered for sealing-critical engine service.