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Ati

Ati

ATI Damper - 5.50in - Alum - 4 & 5 Grv - Subaru WRX EJ20 22 25 Engine 1Pc

SKU: APPATI917991

Harmonic Balancers

APP Dampers...

Ati

Ati

ATI Damper - 5.50in - Alum - 4 & 5 Grv - Subaru WRX EJ20 22 25 Engine 1Pc

SKU: APPATI917991

Harmonic Balancers

APP Dampers...

A$707.49
LAST ONE! READY TO SHIP! LAST ONE! This is the last unit at our warehouse. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Patented ATI Super Damper standard harmonic balancers are the only crankshaft dampers designed exclusively for high performance engines. Inner and outer shells are available in aluminum or steel, and contain a steel inertia weight. The inertia weights have six (2-ring design) or eight (3-ring design) computer-machined grooves to retain the proper durometer O-rings (dyno tested for each application). Whether you race or just drive on the street, ATI harmonic balancers are the perfect choice.

Features include:

* Eliminates torsional crankshaft vibrations
* Exceeds SFI 18.1 specs
* Black zinc chromate finished
* OEM equipment on a variety of crate engines
* Tunable, rebuildable, and extremely efficient at all rpm
* Laser-engraved 360 degree timing marks
* Supercharger and power steering drive pulleys available for some applications

Product Overview

ATI Damper - 5.50in - Alum - 4 & 5 Grv - Subaru WRX EJ20 22 25 Engine 1Pc

Product Details

Description:ATI Damper - 5.50in - Alum - 4 & 5 Grv - Subaru WRX EJ20 22 25 Engine 1Pc
Part Number:appATI917991

Part Type

Harmonic Balancers

Data: v4.2 - Upd: 2026-10-13 14:50:43

Specifications

Product Attributes - Brand
ATI Performance Products
Product Attributes - Manufacturer's Part Number
ATI917991
Product Attributes - Part Type
Harmonic Balancers
Product Attributes - Product Line
ATI Super Damper Standard Harmonic Balancers
Product Attributes - UPC
800157028489
Product Attributes - Engine Balance
Internal
Product Attributes - SFI Rating
SFI 18.1
Product Attributes - Degree Markings
Yes
Product Attributes - Degree Marking Range
360
Product Attributes - Outside Diameter (in.)
5.500
Product Attributes - Keyway Quantity
One
Product Attributes - Harmonic Balancer Material
Aluminum
Product Attributes - Harmonic Balancer Construction
Elastomer
Product Attributes - Harmonic Balancer Color
Black zinc chromate
Product Attributes - Mounting Hardware Included
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Damper is a 3 ring and the weight is 3.60 lbs and the hub weight is 2.20 lbs.

Reference Information

Brand Name/s Ati
StreetFX SKU appATI917991
SFX Item ID 4518994
Supplier Item Code 4518994
Manufacturer SKU ATI917991
Manufacturer UPC 800157028489
Alternative References 5.50in, EJ20, 1Pc

Compatibility

Application Data
  • MakeSUBARU
    Beginning Year1993
    Ending Year2001
    Engine TypeH4
    Engine FamilySubaru 4-cylinder
    Engine Size2.2L/2212cc
  • MakeSUBARU
    Beginning Year1996
    Ending Year2009
    Engine TypeH4
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
  • MakeSUBARU
    Beginning Year1999
    Ending Year2001
    Engine TypeH4
    Engine FamilySubaru 4-cylinder
    Engine Size2.2L/2212cc
  • MakeSUBARU
    Beginning Year2002
    Ending Year2005
    Engine TypeH4
    Engine FamilySubaru 4-cylinder
    Engine Size2.0L/1994cc
  • MakeSUBARU
    Beginning Year2004
    Ending Year2004
    Engine TypeH4
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc

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