Engines and Components› Camshafts and Valvetrain

TwinPower

Twin Power 99-06 Big Twin exc 06 Dyna Cam Chain Tensioner Outer Replaces H-D 39954-99A

$46.10

SKU: T09O 486983

In Stock
In Stock
Ships by Jun 20
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The TwinPower 486983 is an outer cam chain tensioner designed for 1999-2006 Big Twin motorcycles, excluding 2006 Dyna models. It replaces Harley-Davidson part number 39954-99A. This component is part of TwinPower's engine components lineup.

This tensioner features proven TwinPower shoe material for extended durability and reduced friction. It is engineered as a direct fit replacement for specific Harley-Davidson applications.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandTwinPower
Part NumberT09O 486983

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy