Mercury Marine 500 EFI / 525 EFI Harmonic Balancer – External Balance #4003


Special Order Only – Call for Ordering Info.

Externally Balanced Harmonic Balancer for Mercury Mercruiser Engines with SFI 18.1 Rating for the highest quality. The Balancer features an all aluminum anodized case design for light weight, stress-proof steel hub and 1040 steel inertia rings for durability. Wet clutch friction design style with precision machined harmonic dampening for street and race engines.

  • Outer Diameter: 7″
  • Weight: 9.7 lbs
  • Anodized for corrosion protection in fresh water and salt water applications.
  • For External Balance Applications Only
  • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.

Out of stock

SKU: 4003 Category: