MSD engineered this iron distributor gear from a proprietary ductile iron alloy, treated with a Melonite QPQ coating to reduce friction and initial wear. An increased outer hardened layer (RC 55-60) and micro-polished surface provide long life, an easy break-in period, and reliable performance.
Specifications:
- Gear I.D.: .531"
- Distributor Type: Accessories
- Product Type: Distributor Gear
- Category: Ignition
- Warranty: Manufacturer's Limited 1-Year Warranty
- Part Number: 85812
Fits Ford 351C, 351M, 400, 429, and FE engines.
FAQ
What engines does the MSD 85812 iron gear fit?
Ford 351C, 351M, 400, 429, and FE engines.
What coating does the MSD 85812 gear use?
A Melonite QPQ coating that reduces friction and initial wear.
What is the gear's hardness rating?
The outer hardened layer measures RC 55-60 for wear resistance.
What material is the gear made from?
A proprietary formulated ductile iron alloy.

