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Trick Flow® Track Max® Underdrive Harmonic Dampers TFS-18012

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Original Price:


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Underdrive Harmonic Damper, 25% Underdrive, SFI 18.1, Chevrolet/GMC 4.8L/5.3L/6.0L Trucks/SUVs, Each

Estimated Ship Date: Monday 12/1/2014 Would you rather pick it up? Select Location

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  • Order this item and get free delivery and handling on your entire order! Oversize fees also waived on this item. Valid on orders shipped in the contiguous United States.

Manufacturer's Part Number: TFS-18012
Part Type: Harmonic Balancers
Summit Racing Part Number: TFS-18012

Engine Balance: Internal
Safety Rating: SFI 18.1
Degree Markings: Yes
Degree Marking Range: 60 BTDC to 0 TDC
Outside Diameter (in): 5.860 in.
Harmonic Balancer Material: Steel
Harmonic Balancer Construction: Elastomer
Harmonic Balancer Finish: Black powdercoated
Mounting Hardware Included: No
Quantity: Sold individually.
Notes: Integral harmonic damper and crank pulley design provides 25 percent underdrive. Includes alternator pulley.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

Trick Flow® Track Max® underdrive harmonic dampers increase engine power by reducing the effort required to drive external accessories. The dampers have many other exciting features too like an SFI 18.1 safety rating, engraved timing marks, carbon steel construction, injection-molded and bonded elastomer, and a corrosion-resistant black powdercoated finish.


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1 Customer Reviews for Trick Flow Specialties TFS-18012 - Trick Flow® Track Max® Underdrive Harmonic Dampers

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Great product however instructions need work

The product is excellent quality however I order to install the supplied alternator pulley on a trailblazer SS you need to have a special splined pulley tool which summit sells also due to the trailblazers alternator having a clutch on the pulley. Also if installing on a SS trailblazer you will have to source your own nut and lock washer for the over drive alternator pulley. the only other issue was the part number in the instructions for the ac belt was too long for my SS trailblazer. I had to use a 33in 4 rib belt.Other than that it's a great product with noticeable throttle response improvement. ...read more

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Reviewer: JUSTIN from OH

Date: September 25, 2014

Ease of Installation

Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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