Spark Plug Resistor Cap PIAGGIO

Product description
Spark plug misfiring can be triggered off by defective or poorly fitting spark plug resistor caps. For this reason, with these problems it is initially important to check and replace the cable and the cap. We offer spark plug caps which can sometimes be driven with and sometimes without adapter cones for the spark plug.
Conclusion
: Should be replaced with every major engine service and belong in every luggage compartment.
SIP TIP: when changing the resistor cap, replace the
HT lead
and spark plug at the same time.
SIP-COMMUNITY user ‘erihb
(on art. no. AR09966):
“Super, sits in place as if welded on.

SIP-COMMUNITY user ‘mi16x4
(on art. no. 85173000):
“Nice and small, which means it fits easily in the tool compartment and doesn’t take up much space.”
OEM numbers (for comparisons):
639498 – 6394986 (PIAGGIO)