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Starter Boost Relay. Fits Big Twin & Sportster 1980-2021.

$38.00

Available!

Part Number: SS550-0503 Categories , , Brands:

Available!

Description

Features & Benefits:-
* Our Starter Boost Relay provides full battery voltage to the coil during cranking, eliminating the 1-2 volt drop through the wiring harness in single-fire applications.
* Makes start-up quicker & easier, especially with high-compression or stroker engines.