6686 Predator Hemi Electric Start Billet Flywheel 3.9LB

6686 ARC Billet Flywheel – Predator 212 Hemi Electric Start

The ARC Racing 6686 billet flywheel is engineered specifically for Predator 212 Hemi engines equipped with electric start. Precision-machined from 6061-T6 billet aluminum, this SFI-approved flywheel replaces the factory cast flywheel with a stronger and more reliable performance component designed for safe high-RPM operation.

This flywheel features a replaceable 7075-T6 aluminum ring gear designed for electric start applications, along with a powerful rare-earth magnet that produces a strong ignition signal for stable spark delivery and consistent ignition timing in performance engines. :contentReference[oaicite:1]{index=1}

The 6686 flywheel is preset to approximately 32° BTDC timing (about 8° advance over stock) and uses a durable cooling fin design that provides reliable airflow while maintaining high-RPM performance. :contentReference[oaicite:2]{index=2}

Important: This flywheel will NOT accommodate the OEM charging system and may require minor clearancing depending on engine casting variations.

Key Features

• SFI-approved billet aluminum construction
• Machined from 6061-T6 billet aluminum
• Replaceable 7075-T6 aluminum ring gear
• Designed for electric start Predator Hemi engines
• Preset timing: 32° BTDC (approx. 8° advance)
• Powerful rare-earth magnet for strong ignition signal
• Weight: 3.9 lbs
• Minimum coil gap: .030"
• Recommended torque specification: 65 ft/lbs
• Works with OEM pull start
• Will NOT accommodate OEM charging system

Fitment

• Predator 212 Hemi (Gen 2 – cast aluminum valve cover)
• Predator 212 Hemi electric start engines

Important: Always verify engine configuration before installation to ensure proper fitment.