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G1,G2 Alternator Belt (950x10) - 1.5 (JB), 1.6 (FV,FR,EG)

This 10mm x 950mm alternator belt is a high-quality V-belt designed for use on a wide range of classic Volkswagen and Porsche models. It transfers drive from the engine pulley to the alternator, allowing the alternator to generate electricity to charge the battery and power the vehicle’s electrical systems.

Correct belt size and tension are critical. A worn or incorrect belt can slip, squeal, or fail to spin the alternator at the correct speed, leading to poor charging, warning lights on the dash, or flat batteries. This belt is manufactured to precise dimensions to ensure reliable grip, smooth running, and long service life under normal driving conditions.

The belt operates by sitting deep in the V-shaped pulley grooves, increasing friction as load is applied. As engine speed rises, the belt efficiently transfers rotational energy to the alternator while maintaining consistent tension. This makes it suitable for both daily-driven classics and restored vehicles where originality and reliability matter.

Technical Specifications

  • Belt type: V-belt (alternator belt)

  • Width: 10mm

  • Length: 950mm

Fitting Notes

  • Always check pulley alignment before installation

  • Replace belts showing cracks, glazing, or stretching

  • Correct tension is vital – overtightening can damage alternator bearings

  • After initial installation, recheck belt tension after a short running period

Vehicle Compatibility

Volkswagen

  • VW Golf / VW Jetta – 1.5–1.8 (02/1974–02/1984)

  • VW Golf / VW Jetta – 1.6–1.8 (07/1985–07/1992)

  • VW Scirocco – 1.5–1.6 (02/1974–07/1980)

  • VW Golf Cabriolet

    • 1.5 (01/1979–08/1981)

    • 1.6 EM / EG (08/1979–08/1981)

    • 1.6 RE / EW / HN (08/1983–04/1992)

    • 1.8 PB / KT / EV / DX / EX / JH / 2H (08/1983–04/1993)

  • VW Iltis – 1.7 (03/1979–12/1988)

Porsche

  • Porsche 924 – 2.5 (10/1981–07/1988)

  • Porsche 944 – 2.5 / 2.7 / 3.0 (06/1981–07/1991)

  • Porsche 968 – 3.0 (06/1991–11/1995)

  • Porsche 911 – 2.7–3.0 (08/1972–06/1980)

This alternator belt is ideal for routine servicing, preventative maintenance, or curing charging issues caused by worn or slipping belts on classic VW and Porsche vehicles.

This Part Fits: Mk1 Golf, Jetta, Mk2 Golf, Scirocco, Mk1 Golf Cabriolet, Porsche 924, Porsche 944, Porsche 968, Porsche 911,

Availability: Special Order Item

Item Name: V-belt, 10x950 mm

Description: V-Belt

Product Group: Engine

Group: Belt Drive

Unit of Measure: Each

Manufacturer: JOPEX

Dimensions:

Width: 80mm

Height: 147mm

Depth: 70mm

Volume: 823200mm3

Weight: 0.069kg

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