Twin Power 70-E79 FL FX 71-79 XL Advance Unit Screw Replaces H-D 3570

SKU: TWP492670

TWP Distributor Advance Kits...

Twin Power 70-E79 FL FX 71-79 XL Advance Unit Screw Replaces H-D 3570

SKU: TWP492670

TWP Distributor Advance Kits...

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Description

Twin Power 70-E79 FL FX 71-79 XL Advance Unit Screw Replaces H-D 3570

Twin Powerâ„¢ advance unit screw precisely replaces H-D 3570, securing the timer assembly for accurate ignition timing on 1970-early 1979 FL/FX Big Twins and 1971-1979 XL Sportsters.

Data: v4.2 - Upd: 2026-11-08 21:34:43

Features

Direct OEM replacement ensures stable advance mechanism operation during distributor service
Essential hardware for complete ignition rebuilds or points conversions
High-quality steel construction resists vibration and wear in Shovelhead-era engines

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 14:43:23

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