Cummins
Shop All
SKU #: ATI-917365C
MPN #: 917365C
ATI 917365C Super Damper Harmonic Balancer Race Version 89-91 and 98.5-02 Cummins
Description
Designed with absolute precision in mind, the ATI Super Dampers are without a doubt the highest quality harmonic balancers built for diesel engines of all builds. But if you're building a full competition built engine that does NOT include a pulley because you're doing away with your belt-driven pump, A/C, alternator, etc., then the Super Damper RACE VERSION is what you're looking for. By eliminating torsional vibration at the crankcase, your truck will come alive faster and run smoother.
Built out of steel in the good old USA and black zinc chromate finished with laser etched timing marks, these dampers EXCEED SFI 18.1 specs.
Enter your zip and we'll see if installation is available.
- Request quotes from local installers at checkout
- Compare options and choose the best fit for your install
About WrenchConnected
WrenchConnected is an independent installation marketplace operating in partnership with Diesel Power Products.
How it works
After checkout, we route your vehicle info and part SKU to verified installation shops near you. Local installers review the job and submit competitive bids; you pick the shop you want based on price, reviews, and availability. Your name and email stay private until you select an installer.
Pricing
You pay for the bid from your preferred shop. The full amount is shown before you confirm — installers cannot add charges without your written consent. Payments are processed securely by Stripe.
Your privacy
During bidding, shops see only your service ZIP code, vehicle year/make/model, and the part SKU — not your name, email, or address. Only the shop you select receives your contact details after payment. We never sell your personal information.
More detail at wrenchconnected.com.
About ATI Performance Products
We, at Diesel Power Products, use ATI Performance Products exclusively for their Super Damper Harmonic Damper. ATI designs Harmonic Dampers for Cummins, Powerstroke, and Duramax engines.
Whether you're building a full-blown sled puller, or doing some mild upgrades on your tow rig, this is one of the best upgrades you can do to your engine. By reducing torsional vibration at the crankshaft, you will significantly reduce wear on your engine, as well as allow power to come on much quicker and smoother by balancing out the engine.
ATI manufactures a multitude of high performance parts including competition transmissions, Treemaster converters, Torsional Super Dampers, Compu-Flow Valve Bodies, flexplates, and adapter kits as well as a wide variety of performance enhancing internal components. ATI's commitment to racing has allowed the company to maintain a prominent position on the cutting edge of high performance component design and manufacturing
Whether you're building a full-blown sled puller, or doing some mild upgrades on your tow rig, this is one of the best upgrades you can do to your engine. By reducing torsional vibration at the crankshaft, you will significantly reduce wear on your engine, as well as allow power to come on much quicker and smoother by balancing out the engine.
ATI manufactures a multitude of high performance parts including competition transmissions, Treemaster converters, Torsional Super Dampers, Compu-Flow Valve Bodies, flexplates, and adapter kits as well as a wide variety of performance enhancing internal components. ATI's commitment to racing has allowed the company to maintain a prominent position on the cutting edge of high performance component design and manufacturing
Blog
June 12, 2026
The diesel particulate filter (DPF) on your Cummins engine traps soot before it leaves the tailpipe. Over...
Read MoreCummins DPF Cleaning: Signs, Methods & Tips
June 12, 2026
P2509 flags when your Cummins ECM isn't seeing stable voltage coming from the battery and charging system....
Read MoreP2509 Cummins Code: Causes, Symptoms & Fixes
June 10, 2026
It starts small. Maybe the truck is a little slower to spool than usual. Maybe it sounds...
Read MoreHow to Find a Boost Leak Without Special Tools
June 05, 2026
Your exhaust system moves spent gases out of the engine and away from the cab. The muffler...
Read MoreResonator vs Muffler: Key Differences Explained