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T25,T4,G1,G2 Alternator Regulator (For Bosch Alternators)

Replacement voltage regulator for vehicles fitted with a Bosch alternator, designed to maintain a stable charging voltage and protect the vehicle’s electrical system from overcharging or undercharging. This regulator controls the alternator output so the battery charges correctly and electrical components receive consistent voltage during use.

A failing regulator can cause warning lights, poor charging, flat batteries, dim lights, or excessive voltage that may damage other electrical parts. Replacing a worn regulator helps restore correct alternator performance and reliable charging.

This unit is for 12 volt systems with an operating voltage of 14.5V and is supplied sold individually. Always check that your alternator is Bosch manufactured before ordering.

Specifications:
Manufacturer restriction: Bosch
Voltage: 12V
Operating voltage: 14.5V

Fits:

VW T25 / T3 1981-1992
1.6D, 1.7D, 1.9 petrol, 2.0 petrol, 2.1 petrol

VW T4 1990-1996
1.8 petrol, 2.0 petrol

VW Golf Mk1 & Cabriolet 1981-1993
1.1, 1.3, 1.5, 1.6, 1.8 petrol; 1.5D, 1.6D

VW Golf Mk2 1983-1992
1.0, 1.3, 1.6, 1.8 petrol; 1.6D

VW Caddy Mk1 1982-1992
1.5, 1.6, 1.8 petrol; 1.6D

VW Jetta Mk1 / Mk2 1978-1992
1.1, 1.3, 1.5, 1.6, 1.8 petrol; 1.6D

VW Passat B2 / B3 / B4 1979-1997
1.3, 1.6, 1.8, 1.9, 2.0, 2.2 petrol; 1.6D

VW Polo / Derby / Scirocco / Santana / Taro / Corrado
Polo Mk2/86C 1981-1994
Derby 86C 1981-1984
Scirocco 1979-1992
Santana 1981-1984
Taro 1989-1994
Corrado 1989-1995

Porsche
924 1976-1978, 1982-1988
928 1987-1995
944 1982-1991
964 1989-1994
968 1992-1995
993 1994-1998

Other parts you may need: alternator brushes, alternator pulley, drive belt, battery terminals, or a replacement Bosch alternator if the original unit is worn.

This Part Fits: Type 25, T4 Transporter, Mk1 Golf, Mk1 Golf Cabriolet, Mk2 Golf, Jetta, Mk1 Caddy, Mk2 Polo, Scirocco, Corrado, Porsche 924, Porsche 928, Porsche 944, Porsche 964, Porsche 968, Porsche 993,

Availability: Stock Item

Item Name: Alternator Regulator

Description: Alternator Regulator

Product Group: Electric

Group: Alternator

Unit of Measure: Each

Manufacturer: JP

Dimensions:

Width: 45mm

Height: 47mm

Depth: 77mm

Volume: 162855mm3

Weight: 0.052kg

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