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Holley EFI Unterminated Main Harnesses 558-126

5 out of 5 stars ( 1 )

Part Number: HLY-558-126

Estimated Ship Date: Monday 11/9/2026

$449.95

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Application Notes:

This unterminated harness features both J1A and J1B connectors full terminated with 15 ft. of flying lead wire and 30 optional plug seals.

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1-800-230-3030