3.7L Electrical System→Spark Plugs and Wire Sets for Mercruiser 3.7L

Part # & Price	Description
NGKBPR6FS $3.95	NGK Spark Plug 2623 NGK Spark Plug 2623
NGKUR5 $3.95	NGK Spark Plug 2771 NGK Spark Plug 2771
SMI98106 $29.95	Wire Set Ignition Spark Plug Marine Mercruiser 3.7L 224 4 Cylinder 84-813720A6 Spark Plug Wire Set for Mercruiser 3.7L 224 CID 4 cylinder. This engine is identified by many model numbers like 165 170 190 470 485. Basically, if you have a 4 Cylinder Mercruiser over 140 horsepower then you have this motor. This ignition wire set features 8MM suppression core Packard wire custom fit to your specific application. Replaces 84-813720A6