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KO Racing
Stainless Coolant Filler Neck

KORacing Products » Toyota MR2 MK2 » Cooling System
Standard Cap Orientation w/ -4AN overflow
Standard Cap Orientation w/ -4AN Overflow

All new, all 300 series stainless steel filler neck for the MR2 with the 3SGTE. Use standard radiator caps for the MR2, eliminate the factory plastic filler neck mounted to the left side strut tower brace and the hose. Also replace the steel/aluminum upper neck with a new stainless piece that will outlive the rest of the engine!

The cap attachment piece is CNC machined from a solid piece of stainless steel using a 4 axis milling machine for proper cap locking and engagement. We make this piece because we couldn't find one for the OEM caps produced anywhere. Rather than force MR2 owners to start using a different style cap, KO Racing decided to rely on our in house engineering design and manufacturing capability and produce this part ourselves.

Note: Given this is a custom made part, there are several possibilities as to what type of radiator overflow connection, main radiator connection, and turbo water line connection. We can always make a custom part if you request. Some options are listed below, but not all possibilities.

Note: This is made to order. 2-3 weeks to ship.

$185.00 each
Cap Orientation:
Radiator Hose Orientation:
Turbo water port::
Overflow Connection:

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