Twin Power 70-E79 FL FX 71-79 XL Advance Unit Screw Replaces H-D 3570
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TwinPower Advance Unit Screw Replaces 3570 fits Harley-Davidson FL / 1971-1978 Harley-Davidson FX / 1974-1979 Harley-Davidson FXE / 1979 Harley-Davidson Fxef / 1977-1979 Harley-Davidson Fxs

⚠️ Please verify fitment before purchasing. Check the fitment chart below or use the Year/Make/Model tool to confirm this part fits your vehicle.

⚠️ Verify fitment before purchasing. Check the fitment chart below or click the 3 lines in the top left menu, select Home, then use the Year/Make/Model guide.

TwinPower
492670
In stock
$2.99 USD

NOT CARB LEGAL

$2.99 USD

TwinPower Advance Unit Screw Replaces 3570 fits Harley-Davidson FL / 1971-1978 Harley-Davidson FX / 1974-1979 Harley-Davidson FXE / 1979 Harley-Davidson Fxef / 1977-1979 Harley-Davidson Fxs
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.

This Part Fits:

Year Make Model Submodel
1971-1979 Harley-Davidson FLH Electra Glide Base
1971-1978 Harley-Davidson FX Super Glide Base
1974-1979 Harley-Davidson FXE Super Glide Base
1979 Harley-Davidson FXEF Fat Bob Base
1977-1979 Harley-Davidson FXS Low Rider Base
1971-1979 Harley-Davidson XLCH Base
1977-1978 Harley-Davidson XLCR Cafe Racer Base
1978-1979 Harley-Davidson XLS Roadster Base
1977-1978 Harley-Davidson XLT Base
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