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T4,G2,G3 Glow Plug Relay

Replacement glow plug relay designed to control the operation of the glow plugs on Volkswagen diesel engines. This relay plays a critical role in cold starting by supplying power to the glow plugs for a set period, allowing them to heat up and aid combustion.

When the ignition is switched on, the relay activates and sends current to the glow plugs, heating the combustion chambers. Once the engine starts, the relay may continue to operate briefly to stabilise running. A faulty relay can result in hard starting, excessive smoke, or complete non-start conditions, especially in cold weather.

This unit is a 7-pin relay, rated at 12 volts and 70 amps, and typically identified by relay position/number 12 / 102 depending on application. It is designed to match original specifications for reliable operation.

Specifications:
Voltage: 12V
Rated Current: 70A
Pins: 7
Relay Position/Number: 12 / 102


Fits:

VW T4 Transporter
1990-2003 – 1.9D, 2.4D, 2.5D Diesel

VW Golf Mk2 / Mk3 & Jetta Mk2 / Vento
1989-1999 – 1.6D, 1.9D (including SB, 1V and similar engines)

VW Caddy Mk1
1982-1992 – 1.6 Diesel

VW LT Mk1
1979-1996 – 2.4 Diesel

VW Passat B1 / B2
1977-1988 – 1.5D, 1.6 Diesel

VW Polo (86C)
1986-1990 – 1.3 Diesel


Other parts you may need: glow plugs, wiring harness connectors, battery terminals, and ignition switch components if diagnosing starting issues.

This Part Fits: T4 Transporter, Mk2 Golf, Mk1 Caddy, Mk2 Polo,

Availability: Stock Item

Item Name: Relay, glow plug system

Description: Relay, glow plug system

Product Group: Electric

Group: Glow Ignition System

Unit of Measure: Each

Manufacturer: JP

Dimensions:

Width: 45mm

Height: 47mm

Depth: 77mm

Volume: 162855mm3

Weight: 0.05kg

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