MSD
Ford 351W Steel Gear Billet Distributor
Part # 85840
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Fits 351W with steel gear for hydraulic roller cams. Must be used with an MSD 6, 7 or 8-series ignition.
Read MoreFord 351W Steel Gear Billet Distributor
Free Shipping - Lower 48 US States
Backordered
Est. Ship Date: 08/14/2026
$584.95
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The steel shaft that spins the advance and reluctor receives a friction reducing coating plus is guided by a sealed ball bearing and long sintered bushing. This combination provides stable timing signals and spark delivery at any rpm. Triggering chores are handled by MSD's race proven, maintenance-free magnetic pick-up.
For Ford enthusiasts that are serious about performance! Just under the brass terminals of the MSD cap and rotor is an easy-to-adjust mechanical advance assembly. The assembly is fine blanked from chro-moly steel, TIG-welded for strength plus receives a QPQ coating. The precision weights glide on nylon bushings for smooth advancement and different springs and stop bushings are supplied so a variety of advance curves can be tuned.
Features:
- Same height and width as PN 8584
- Maintenance-free magnetic pickup and advance assembly
| Brand | MSD |
|---|---|
| Category | Ignition |
| Color | Red |
| Distributor Cap Included | Yes |
| Distributor Type | Magnetic Pickup |
| Emission Code | 3 |
| Engine | Ford 351W |
| Gear | Steel |
| Gear Material | Steel Melonized QPQ Coated |
| Grade Type | Performance |
| Ignition Box Required | Yes |
| Ignition Coil Included | No |
| Ignition Rotor Included | Yes |
| part type | Distributor |
| Product Type | Distributor |
| Quantity | 1 |
| Sub Category | Distributor and Magneto |
| Warranty | Manufacturer's Limited 1 Year Warranty |
| UPC | 085132858408 |
| Warning | California Proposition 65 |
| Part Number | 85840 |
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The kit contains an assortment of springs and advance limit bushings.$29.55Qty:![Advance Weight Kit for MSD Pro Billet Distributors]()
Allows you to tailor you timing curve for your particular application.$25.95Qty:![MSD Cap/Rotor Kit (PN 8408, PN 8423)]()
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The Ford-style cap has a provision for the coil wire to be routed in separately.$61.35Qty:![Ford 302 and 351W Steel Distributor Gear]()
The 85834 STEEL gear is a direct replacement for the 8455 & 8456 5.0L EFI distributors, and also fits 351W distributors with 0.531" ID.$167.95Qty:![MSD Distributor Cap - Ford HEI - Black]()
1972-1997 Ford V8 - 255/302/351/400/460ci$71.09Qty:![Cap-A-Dapt Kit, Fixed Rotor]()
Spark plug style terminals are used on the cap for tight connections that will not vibrate loose.$99.95Qty:![Adapter Base, Cap-A-Dapt, PN 8445/PN 8420]()
![Fixed Rotor PN 8445]()
3
This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
- 1965 and older U.S. manufactured California Certified vehicles
- 1967 and older U.S. manufactured Federally Certified vehicles
- 1967 and older Foreign manufactured vehicle
WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
The following vehicles are considered Emissions Controlled Vehicles:
- 1966 and newer U.S. manufactured California Certified vehicles
- 1968 and newer U.S. manufactured Federally Certified vehicles
- 1968 and newer Foreign manufactured vehicle
Manufacturer's Limited 1 Year Warranty: See Details
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Some parts are not legal for use in California or other states with similar regulations.