MSD Pre-wired Switch

Marsoni

M251S

$39.00

Get it in 3 business days with 1 day shipping. Friday, May 29

MSD Pre-wired SwitchThis prewired switch makes it very convenient to switch back and forth from conventional Kettering to an MSD ignition. It's useful for troubleshooting the MSD unit and it's wiring and for switching it back to Kettering so your ignition scope trace will look 'normal' for the easiest trouble shooting. It's the same four pole double throw switch we've been selling for this use for years. . . only not the delicate job of soldering the wires on the switch

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Quick Dispatch:

Your MSD Pre-wired Switch orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

perfect fit for my 2022 civic! took 5 min! (not an exaggeration) soooo many youtube videos but alll you gotta do is - 1) locate engine air filter holder 2) undo fasteners on the sides 3) lift black part up 4) pull out old filter 5) put in new filter, 6) redo fasteners DONE! dealership wanted to charge me $85 for this!!!!! forget that , do it yourself! it’s easy for girls too!! don’t be intimated :)

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Reviewed in the United States on October 29, 2025

Verified Purchase

Steve S.

Belleville, US

★★★★★ 5

Great product!

High quality; great product; highly recommended!

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Reviewed in the United States on July 27, 2025

Verified Purchase

Houston, US