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Engines and Components› Harmonic Balancers

ATI

GM LS1 6.32 Harmonic Damper - SFI

$388.90 $368.90 Save $20.00

SKU: A00N 917776

In Stock
In Stock
Ships by Sep 17
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$100 Minimum Order
Non-Returnable Item
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Overview

The ATI Super Damper is designed to eliminate torsional crankshaft vibrations and exceeds SFI 18.1 specs. It features a black zinc chromate finish, laser engraved timing marks, and is tunable, rebuildable, and efficient at all RPMs. It consists of inner and outer shells (available in aluminum or steel) containing a steel inertia weight with computer-machined grooves to retain durometer O-rings. It is counterbored to accept a drive mandrel, with hubs for these assemblies having a 2.280" counterbore.
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Part #: 917776

Harmonic Balancer - Super Damper - 6.325 in OD - SFI 18.1 - Steel - Black - Internal Balance - GM LS-Series - Each

Vehicle Symptoms
  • Engine vibration at idle or specific RPM
  • Rough idle or hesitation during acceleration
  • Knocking noise from front of engine bay
  • Timing marks appearing erratic or jumping
  • Visible wobble or separation of balancer layers
Diagnostic Codes
  • P0300 – Random/multiple cylinder misfire
  • P0335 – Crankshaft position sensor circuit malfunction
  • P0336 – Crankshaft position sensor circuit range/performance
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandATI
Part NumberA00N 917776
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Returns & Fitment

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.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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