Are these the same plug?

[curt]

Champion RH18Y And Rj18YC

[DEEPNHOCK]

They are NOT the same...
The length of the threaded part is different.
Hope the info helps.
Jeff[8D]

RJ18YC
14mm Thread, 9.5mm (3/8") Reach, 13/16" (20.6mm) Hex Size, Gasket Seat, Resistor, Copper Core, Projected Core Nose

RH18Y
14mm Thread, 11mm (7/16") Reach, 13/16" (20.6mm) Hex Size, Gasket Seat, Resistor, Projected Tip

quote:Originally posted by curt

Champion RH18Y And Rj18YC

http://community.webshots.com/user/deepnhock

[curt]

Thanks.

[Dwain G.]

Many parts stores no longer use the actual spark plug number. They go by the stock number. Ask them for Champion 857.


Dwain G.