XACT Prolite Flywheel, 8.3 lb — 2000–2009 Honda S2000

Fitment

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Description

ACT 600350 XACT Prolite is a low-inertia, one-piece chromoly-steel flywheel for the S2000, intended for road-racing and rally response.

Technical specifications

Manufacturer part number 600350 Manufacturer product weight 8.3 lb Friction surface 212 mm / 8.3 in Ring-gear teeth 109 Material Chromoly steel SFI specification 1.1 Application and compatibility

2000–2003 Honda S2000 Base 2.0L; 2004–2009 S2000 Base 2.2L; 2008–2009 S2000 CR 2.2L.

Manufacturer documents

ACT exact product page

ACT application chart, dated 2026-08-18

ACT general installation instructions

ACT limited warranty

Product specifications

Friction Surface Diameter: 8.3 IN

Friction Surface Diameter: 212 mm

Key features

• Heat-treated forging and induction-hardened ring gear
• Resurfaceable friction surface
• Reduced drivability with mild-to-moderate gear rattle

Specifications

General

What's in the box

• One 600350 Prolite flywheel

Clutch components and installation bolts supplied separately.

Install & Results

At a glance

• Professional installation recommended.
• Supporting modifications required:
  • New factory flywheel bolts; pilot bearing if replacement is needed
  • Compatible clutch components supplied separately
• Use new factory flywheel bolts and the vehicle-service-manual torque specification During professional resurfacing, preserve step height and remove no more than 0.040 in / 1.02 mm

Warranty

Limited warranty (documented)

One-year limited materials/workmanship warranty for the original retail buyer. Authorized-dealer receipt required; misuse, improper installation and labor costs excluded.

Term: One-year limited warranty

Manufacturer warranty policy