Harmonic Damper Kit, TR250, TR6, using 17mm shaft replacement alternator

SKU: N/A Categories: ,
Dimensions: 10 × 10 × 10 in
Weight: 18lbs


ATI Super Damper kit

Fits Triumph TR250 and TR6 with aftermarket 17mm shaft alternator

Sold as a complete kit


ATI Super Dampers offer significantly improved vibration dampening over the original Triumph damper, creating a smoother running, higher revving, more powerful engine. This kit includes everything needed to install the ATI Damper, including a new water pump with pulley, crank and alternator pulleys, belt and mounting hardware. Also included is a fan extension for mounting an original spec mechanical fan or a fan extension replacer if the original fan was replaced with an aftermarket electric fan.

This kit is specifically for TR250 and TR6 engines using an aftermarket alternator with 17mm shaft.


ATI Super Dampers DO NOT require additional balancing, they are factory balanced and should be installed without modification. Any crankshaft balancing must be done BEFORE the damper is installed.

This damper extends farther forward than the original damper, the engine may need to be moved rearward in its adjustment slots to avoid interference with the engine compartment cross brace. The included installation instructions detail this procedure.

Click here for installation instructions

Additional information

Weight 18 lbs
Dimensions 10 × 10 × 10 in


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