Black, Vacuum Advance Mechanism

For use with Pro Billet and Ready to Run Distributors w/Vacuum Advance with Black Canister. Does not fit PN 8365/83653 and PN 8362/83623.

PART# 84633

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Replacement vacuum advance mechanism for MSD Black Distributors equipped with vacuum advance (except the PN 8365, 83653 and PN 8362, 83623 HEI Distributors.)


Distributor TypeAccessories
Emission Code5
Product TypeVacuum Canister
WarrantyLimited 1 Year Warranty
Part Number84633



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Warranty Information

Limited 1 Year Warranty: See Details
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        *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

        Some parts are not legal for use in California or other states with similar regulations.

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