4x DENSO K20PR-U11 (3121) U-Groove Resistor Spark Plug

(4) DENSO K20PR-U11 (3121) U-Groove Resistor Spark Plug New Old Stock

4x DENSO K20PR-U11 (3121) U-Groove Resistor Spark Plug

(4) Denso 3121 #4, K20PR-U11 Spark Plugs, U-Groove

DENSO K20PR-U11 (SLIGHTLY USED) 6 PLUGS

NEW OLD STOCK - Denso - Spark Plug - K20PR-U11 - 3121 - EM109

Denso K20R-U11 #3121 U Groove Sparkplugs x4 Made in Japan