Auto Barn
Est. 1957
Twin Power 70-79 Big Twin 71-79 XL Advance Unit Replaces HD 32517-70T
TwinPower
TwinPower

Twin Power 70-79 Big Twin 71-79 XL Advance Unit Replaces HD 32517-70T

$38.90

On Backorder — Expected to ship by Apr 12, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Twin Power ignition advance unit for 1970-1979 Harley-Davidson Big Twin and XL models. Replaces HD 32517-70T.

Key Features

  • Fits 1970-1979 Harley-Davidson Big Twin and XL models.
  • Replaces Harley-Davidson part number 32517-70T.
  • Includes timer screw, cam, and mounting screws.
  • Designed to advance ignition timing as engine RPMs increase.
Secure CheckoutFast Shipping631-982-0042

Product Details

If you're working on a 1970-1979 Harley-Davidson Big Twin or XL model and need to get your ignition timing dialed in, this advance unit is what you'll want. It's designed to replace the stock H-D® 32517-70T, ensuring it works with your existing setup.

This unit includes the timer screw, cam, and mounting screws, so you have the essential pieces to get the job done. It's a well-built replacement part that helps ensure your engine runs smoothly by advancing ignition timing as engine RPMs increase. This is crucial for optimal performance and fuel efficiency.

Specifications

Brand
TwinPower
Manufacturer Part #
215533
UPC
887337164441

Frequently Asked Questions

Twin Power 70-79 Big Twin 71-79 XL Advance Unit Replaces HD 32517-70T

$38.90