R43 AC Delco Engine Spark Plug.

Thread size 14mm.

Equivalent to Autolite 3014, 303; Champion J6C, RJ6C; Denso W20SR-U; General Motors 1559429; Motorcraft AR31; NGK BR6S.

Please check the part numbers for your fitment needs. If you are unsure whether this part fits your model, please contact us with your serial number and we can help determine if it is right for your engine. 

Thank you for shopping at Boats.Parts!!

Boats.Parts offers the most used Stern Drive & Outboard parts in Wisconsin!

cat-785