MSD 85832 Ford 289/302 Cast Iron Distributor Gear with Melonite QPQ Coating

The MSD 85832 is a high-grade cast iron distributor gear engineered for Ford 289 and 302 engines. MSD's engineering team invested hundreds of hours testing and evaluating metallurgical compositions, heat treating processes, and surface coatings to produce a distributor gear that delivers durability, accuracy, and strength in demanding ignition applications. The result is a proprietary iron alloy gear built for long service life and reliable performance from the very first start.

Key Features:

• Proprietary ductile iron construction — machined from a specially formulated cast iron alloy for superior strength and longevity
• Micro-polished contact surface — provides smooth meshing with the camshaft gear to reduce wear and noise
• Increased outer hardened layer thickness — surface hardness rated RC 55–60 for exceptional resistance to wear under high-load conditions
• Melonite QPQ coating — low-friction surface treatment that reduces initial break-in wear and ongoing friction for extended gear life
• Interstitial carbide concentration — improved internal metallurgical structure enhances wear resistance and running characteristics over the life of the gear
• 0.468-inch shaft diameter — direct-fit for Ford 289 and 302 distributor shafts; no drilling required
• Roll pin included — complete hardware for installation right out of the box
• Sold individually

The MSD 85832 distributor gear is street and emissions legal for use on both emissions-controlled and non-emissions-controlled vehicles. It is an ideal upgrade or direct replacement for worn OEM-style gears on Ford small-block applications, delivering a confident break-in period and dependable long-term ignition timing accuracy.