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

$39 $35.10

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SKU: SS550-0503 Categories: , ,
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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.

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