Pioneer Automotive 872047 SFI Race Harmonic Balancer Internal Balance 7.50 in. Nodular Iron

The Pioneer Automotive 872047 is an SFI 18.1-certified race harmonic balancer engineered for high-revving street/race and competition applications where a sanctioned balancer is required. Constructed from nodular iron with a black finish, this internally balanced unit measures 7.50 inches in outside diameter and features a serpentine belt design with a single keyway.

Key Features:

• SFI 18.1 Certified — meets sanctioning body requirements for race and street/race use
• Internal Balance — 7.50 in. outside diameter, serpentine belt design
• Nodular Iron Construction — durable, high-strength material for demanding performance environments
• Bonded Rubber Isolation — helps eliminate inertia ring spinning and provides forward/backward movement protection
• CNC-Machined Steel Center Hub — precision-machined AISI 1045 steel center bonded to a steel inertia ring for consistent fitment and balance
• Computer-Etched Timing Marks — easy-to-read degree markings for accurate timing setup
• Lightweight All-Steel Design — advanced construction keeps rotating mass to a minimum for all-steel products
• Sold Individually — includes one (1) harmonic balancer

The Pioneer 872047 race balancer is ideal for builders demanding a sanctioned, high-performance crankshaft damper. Its bonded rubber technology and precision-machined components provide reliable vibration damping at elevated RPMs, protecting the crankshaft and drivetrain components during aggressive use.