Skip to content
WARNING: Scammer in Canada running fake 5150MOTORSPORT website. Click to read more.
WARNING: Scammer in Canada running fake website - Click to read more.

Bosch 12 Volt Hard Start Relay Kit

If your air-cooled Porsche is hard to start due to voltage drop at the starter, this Bosch WR1 kit can help correct the problem by using a relay to provide direct power to your starter. Kit includes relay, instructions, wiring harness fuse holder, and fuse. This is a universal kit that can be used with 356C, 912 and 914 models as well as 1967-1984 air-cooled VW's.

Kit includes:

  • 5-Prong Relay (12V)
  • Wiring Harness
  • 15 Amp Inline Fuse

Note: For 12V systems only

Reference Part Number: WR1
Manufacturer: Bosch