Elring 819.840 Engine Cylinder Head Bolt Set

Elring Cylinder Head Bolt Set 819.840

Elring 819.840 is an engine cylinder head bolt set built for Volkswagen and Audi applications that require a female star bolt head, M11 x 1.5 thread, and 148 mm length. It is a direct-fit hardware solution for engine service work on select Golf, Jetta, Passat, and Audi 80 models.

Key Features

• Engine cylinder head bolt set from Elring
• Female star bolt head / nut design for proper tool engagement
• M11 x 1.5 thread size with 148 mm length
• Spanner size: X - M 12
• Engine hardware for select Volkswagen Golf, Jetta, Passat, and Audi 80 applications
• Elring part number 819.840 for catalog matching and service lookup

Application Details

This Elring cylinder head bolt set is specified for engine hardware service on 1987-1992 Volkswagen Jetta, 1990-1992 Volkswagen Golf, 1990-1993 Volkswagen Passat, 1993-1997 Volkswagen Golf, 1994-1996 Volkswagen Passat, and 1990 Audi 80. Fitment notes for select applications call out a 148 mm length, M11 thread, 1.5 mm pitch, and female star bolt head design. The 819.840 reference also helps when cross-checking engine cylinder head bolt set listings for Volkswagen Golf and Passat repairs.

This part cross-references MAHLE GS33426 for the same application.

Common Repair Uses

• Replacing stretched or damaged cylinder head bolts during engine service
• Restoring proper clamping force after cylinder head removal
• Addressing head gasket repair jobs that require new head bolts
• Matching OE-style fastener specifications for Volkswagen and Audi engines
• Supporting accurate reassembly on Golf, Jetta, Passat, and Audi 80 platforms

Installation Notes

Verify thread size, length, and bolt head design against the engine specification before installation. Clean the cylinder head and block threads, follow the factory tightening sequence, and use the correct female star tool for the bolt head design. Because cylinder head fasteners are critical engine hardware, confirm the application by year, make, model, and engine code before assembly.

Quality Assurance

Elring is a recognized name in engine sealing and hardware components, and this bolt set is cataloged to match the listed Volkswagen and Audi applications. Use the part number 819.840 and the fitment details above to confirm the correct engine cylinder head bolt set for your repair.