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Instruction Sheets for Part Number FLU-521001
Harmonic Balancer, Internal Balance, Steel, Black Zinc Chromate, SFI 18.1, Mazda, Each
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Estimated Ship Date: Nov 4, 2026 Would you rather pick it up?
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ATI Super Damper Serpentine Series Harmonic Balancers for 1994-2005 MIATA - ATI918522BG1
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Estimated Ship Date: Nov 17, 2026
Overview
Brand:
Manufacturer's Part Number:
521001
Part Type:
Product Line:
Summit Racing Part Number:
FLU-521001
UPC:
815293003443
Engine Balance:
Internal
SFI Rating:
SFI 18.1
Degree Markings:
Yes
Outside Diameter (in.):
5.250 in.
Keyway Quantity:
One
Harmonic Balancer Material:
Steel
Harmonic Balancer Color:
Black zinc chromate
Mounting Hardware Included:
Yes
Quantity:
Sold individually.
Notes:
Features a 10 percent underdrive water pump drive pulley designed to prevent cavitation and overheating at high RPM. Installation compatible with OE and Mazdaspeed tone wheel and does not require loosening crankshaft bolt.
Fluidampr Harmonic Dampers
Using only three parts (a laser-welded sealed housing, an internal inertia ring, and highly viscous silicone fluid between the two), SFI-approved Fluidampr harmonic dampers can control all crankshaft vibration--not just a limited frequency range. As a result, you get reduced wear on the main bearings and timing gear, more stable valvetrain operation, and less chance of crank failure.
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