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Twin Power 70-E79 FL FX 71-79 XL Advance Unit Screw Replaces H-D 3570
TwinPower
Special order
Quantity:
Please be advised that no returns, cancellations, or refunds allowed on Special Orders once it has been placed on order regardless of the circumstances.
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Special order
Quantity:
Please be advised that no returns, cancellations, or refunds allowed on Special Orders once it has been placed on order regardless of the circumstances.
Special order
Quantity:
Please be advised that no returns, cancellations, or refunds allowed on Special Orders once it has been placed on order regardless of the circumstances.
Twin Power™ 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.
- Direct OEM replacement ensures stable advance mechanism operation during distributor service
- High-quality steel construction resists vibration and wear in Shovelhead-era engines
- Essential hardware for complete ignition rebuilds or points conversions
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