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

$695.00

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.

Available on backorder

Options

Double 3/16" Keyway Add On

Add an additional 3/16 Keyway to your Damper. Required the crankshaft to be machined for a second keyway 180* out from the original keyway. *Requires damper purchase. This is a labor option for new damper purchase only.

3/16" x 1/4" Keyway Add On

Add an additional 1/4" Keyway to your Damper. Required the crankshaft to be machined for a second keyway 180* out from the original keyway. (Requires a Blower/Super Duty Hub or BBC Crank Snout) *Requires damper purchase. This is a labor option for new damper purchase only.

Double 1/4" Keyway Add On

Dual  1/4" Keyways (Requires a Blower/Super Duty Hub or BBC Crank Snout) Required the crankshaft to be machined for a second keyway 180* out from the original keyway. *Requires damper purchase. This is a labor option for new damper purchase only.

SKU: 4003 Category: