O Ring - K Series / KV6 Thermostat Housing - CDU3858

CDU3858 O Rings, as used on the K Series and KV6 Thermostat Housings. 

These are made of a stronger, more flexible grade of rubber than the originals - so should seal better for longer.

Useful fitment quantities:
- KV6 Thermostat only - 1x O Ring
- KV6 Straight Thermostat Pipe - 2x O Rings
- KV6 Curved Thermostat Pipe - 1x O Ring
- K Series Thermostat Housing - 2x O Rings (and 1x PEF10010 internal seal)