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T4,G1,G2,G3 Alternator Adjusting Bolt

This alternator tension adjusting bolt is used on the alternator adjuster mechanism to set and hold correct V-belt tension. A tired, rounded, or seized adjuster bolt makes belt tensioning difficult and can lead to belt slip, squeal, poor charging, and premature belt/pulley wear. Ideal for servicing or rebuilding the alternator bracket setup on classic VW models.

Technical Details

  • Thread: M8 x 1.25

  • Length: 42mm

  • Supplied: 1x adjusting bolt

Vehicle Fitment Summary

  • VW T3 / T25 (1979–1992): 1.6–2.1 petrol, 1.6–1.7 diesel (Bus/Van/Platform-Chassis)

  • VW T4 (1990–2003): 1.8–2.8 petrol, 1.9–2.5 diesel (Bus/Van/Platform-Chassis)

  • VW Golf Mk1 (1979–1993): 1.3–1.8 petrol (incl. Cabriolet)

  • VW Golf Mk2 (1983–1992): 1.0–1.8 petrol, 1.6 diesel

  • VW Golf Mk3 (1991–1999): 1.4–2.9 petrol, 1.9 diesel (incl. Estate/Van/Cabriolet where listed)

  • VW Golf Mk4 Cabriolet (1998–2002): 1.6–2.0 petrol, 1.9 diesel

  • VW Jetta Mk2 (1987–1988): 1.8 petrol

  • VW Caddy Mk1 (1982–1992): 1.5–1.8 petrol, 1.6 diesel

  • VW Caddy Mk2 (1995–2004): 1.4–1.6 petrol, 1.7–1.9 diesel (MPV/Box/Pickup)

  • VW California T4 (1994–2003): 1.9 diesel, 2.5 petrol/diesel, 2.8 petrol

  • VW LT Mk1 (1979–1996): 2.4 diesel/petrol (Bus/Van/Platform-Chassis)

  • VW Passat B2 (1979–1988): 1.3–2.2 petrol, 1.6 diesel (Hatch/Estate/Saloon)

  • VW Passat B3/B4 (1988–1997): 1.6–2.9 petrol, 1.9 diesel (Saloon/Estate/Van)

  • VW Polo 86C (1981–1994): 1.0–1.4 petrol/diesel (Hatch/Coupe/Saloon/Van)

  • VW Polo 6N (1997–2001): 1.4–1.9 petrol/diesel (Estate/Van)

  • VW Polo Classic 6V2 (1995–2002): 1.4–2.0 petrol, 1.9 diesel (Saloon)

  • VW Sharan (1995–2010): 1.8–2.8 petrol, 1.9 diesel (MPV/Box)

  • VW Vento (1991–1998): 1.4–2.8 petrol, 1.9 diesel (Saloon)

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

Availability: Stock Item

Item Name: Tensioner Bolt, alternator mounting

Description: Tensioner Bolt, alternator mounting

Product Group: Electric

Group: Alternator

Unit of Measure: Each

Manufacturer: JP

Dimensions:

Width: 150mm

Height: 150mm

Depth: 25mm

Volume: 562500mm3

Weight: 0.045kg

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