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T25,T4,G1,G2,G3,G4 Cylinder Head Bolt (M12x115mm)

Replacement M12 cylinder head bolt measuring 115mm long with a 1.75mm thread pitch, suitable for a wide range of Volkswagen diesel and petrol engines across multiple generations of VW vehicles. Designed to securely clamp the cylinder head to the engine block, these bolts play a critical role in maintaining correct head gasket sealing and engine compression.

Cylinder head bolts are subjected to extreme heat cycles and stretching forces during engine operation. Over time, original bolts can fatigue or stretch beyond tolerance, especially during engine overheating or head gasket failure. Replacing head bolts during cylinder head or head gasket repairs helps ensure proper clamping force and long-term engine reliability.

Manufactured to OE specification, this bolt is suitable for use on many VW diesel engines including 1.5D, 1.6D, 1.6TD, 1.7D, 1.9D and 2.4D applications, as well as selected petrol engines including VR6 and Transporter applications. Ideal for engine rebuilds, cylinder head replacement and head gasket servicing.

We always recommend replacing cylinder head bolts as a complete set whenever the cylinder head is removed.

Specifications:
Thread Size: M12 x 1.75
Length: 115mm

OEM References:
046103384A
046103385
068100103G
068103384
068103384A
076103101
028103383AN
1328871
9186535

Fitment Summary:
VW Golf Mk1 & Mk2: 1.5D, 1.6D and 1.6TD models 1976-1991
VW Jetta Mk1 & Mk2: 1.6D and 1.6TD models 1980-1991
VW Passat B1, B2, B3 & B4: Selected 1.5D, 1.6D and 1.9D models 1977-1997
VW Transporter T3/T25: 1.6D, 1.6TD and 1.7D models 1981-1992
VW Transporter T4: Selected 1.9D, 2.4D, 2.0 petrol and 2.5 petrol models 1990-2003
VW Caddy Mk1 & Mk2: Selected diesel models 1982-2004
VW Polo 86C & 6N: Selected diesel models 1986-2001
VW Golf Mk3 & Mk4, Bora, Vento, Sharan: Selected 1.9 TDI and VR6 applications
VW LT: Various 2.4D and petrol models 1979-1996
VW Iltis: 1.6TD models 1987-1988

Suitable for many Audi, SEAT, Skoda and Volvo applications using related VW diesel engines.

This Part Fits: Type 25, T4 Transporter, Mk1 Golf, Mk2 Golf, Jetta, Mk1 Caddy, Mk2 Polo, Mk3 Polo, Mk3 Golf, Mk4 Golf,

Availability: Stock Item

Item Name: Bolt for cylinder head, M12x1.75x115 mm

Description: Cylinder Head Bolt

Product Group: Engine

Group: Cylinder Head

Unit of Measure: Each

Manufacturer: JOPEX

Dimensions:

Width: 80mm

Height: 147mm

Depth: 70mm

Volume: 823200mm3

Weight: 0.105kg

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