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Sierra Marine Thunderbolt IV HEI Distributors
Distributor, Hall-Effect, Male Cap, Thunderbolt, Standard Rotating, Mercruiser, V8, Each
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Estimated Ship Date from Texas: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
18-5470
Part Type:
Product Line:
Summit Racing Part Number:
RRA-18-5470
UPC:
808282295042
Distributor Cap Included:
Yes
Distributor Cap Style:
Male/HEI
Distributor Cap Type:
Small cap
Ignition Coil Included:
No
Ignition Module Included:
Yes
Computer-Controlled Compatible:
No
Trigger Style:
Hall effect
Advance Type:
Mechanical
Ignition Box Required:
No
Mechanical Tach Drive:
No
Slip Collar:
No
Distributor Gear Material:
Iron
Distributor Gear Rotation:
Standard
Distributor Cap Color:
Black
Housing Material:
Aluminum
Housing Finish:
Black
Marine Use:
Yes
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Assembly required.
Sierra Marine Thunderbolt IV HEI Distributors
Sierra Marine Thunderbolt IV HEI distributors are designed as a direct replacement for Mercury Thunderbolt IV ignition distributors. They use a hall effect-type sensor to trigger ignition accurately, even at low rpm. They meet or exceed SAE J1171 standards.
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Some parts are not legal for use in California or other states with similar laws / regulations
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