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Twin Power 99-06 Big Twin exc 06 Dyna Cam Chain Tensioner Inner Replaces H-D 39964-99A
TwinPower
TwinPower

Twin Power 99-06 Big Twin exc 06 Dyna Cam Chain Tensioner Inner Replaces H-D 39964-99A

$35.83

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 cam chain tensioner assembly for 1999-2006 Harley-Davidson Big Twins. Features improved shoe material for longer life.

Key Features

  • Fits 1999-2006 Harley-Davidson Big Twin models (excluding 2006 Dyna).
  • Features Twin Power shoe material for longer life and reduced friction.
  • Higher temperature resistance compared to OEM components.
  • Replaces Harley-Davidson part number 39964-99A.
  • Sold individually as a complete assembly.
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Product Details

The Twin Power cam chain tensioner assembly uses a special shoe material that's built to last longer and handle higher temperatures than stock. This improved material also helps reduce friction, which is key for keeping your engine running smoothly. It's designed to replace the original tensioner assembly directly, fitting perfectly into your 1999-2006 Harley-Davidson Big Twin, excluding the 2006 Dyna models.

This assembly is a well-built replacement for Harley-Davidson part number 39964-99A. By using this updated shoe material, you can expect improved durability and performance compared to the original equipment. It's sold individually, so you'll get one complete tensioner assembly ready to be installed on a wide range of Harley-Davidson models, including popular bikes like the Road King and Fat Boy.

Specifications

Brand
TwinPower
Manufacturer Part #
486984
UPC
887337346816

Frequently Asked Questions

Twin Power 99-06 Big Twin exc 06 Dyna Cam Chain Tensioner Inner Replaces H-D 39964-99A

$35.83