⚡ Ignite your engine’s potential with precision and power!
The MSD 85551 Pro-Billet Distributor is a high-performance ignition component featuring a QPQ-coated polished steel shaft with dual sealed ball bearings, maintenance-free magnetic pickup, and a finely tuned mechanical advance system. Built for durability and precision, it ensures stable trigger signals across the RPM range and reduces friction with chromoly steel advance components, making it the go-to choice for serious engine builders seeking reliable, adjustable ignition timing without vacuum advance.
| Manufacturer | MSD Ignition |
| Brand | MSD |
| Model | MSD 85551 Pro-Billet Distributor |
| Item Weight | 0.01 ounces |
| Product Dimensions | 17.8 x 6.9 x 6.8 inches |
| Item model number | 85551 |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | MSD-85551 |
| OEM Part Number | 85551 |
J**.
MSD performance
MSD has a superior product works flawlessly
A**R
Great product
Installed on my Chevrolet Big Block 496, ran great.
S**K
The best adjustable distributor out there
Love that you can change your entire advance curve with just a simple change of springs and bushings, perfect for the guy tuning his car for optimum performance. Simple hook up to any MSD ignintion box, perfect comibination from a trusted company.
L**T
Great new replacement part for my boat engine
Great new replacement part for my boat engine. Works super and expect it to also last at least 25 years like original.Thanks for the quick service to get it to me too! All be well …LB.
D**H
Worth the money, well made
Well made. Easy to lock out. If you own MSD 6 al programmable ignition this just plugs right in. No shaft movement when installed so timing does not jump around. Wish it came with the adjustable rotor so phasing was possible.
A**R
Great quality
Works perfect
B**O
Distributor
Part was as said and worked flawless
J**Y
Five Stars
Great product! Worked exactly as I hoped.
Trustpilot
3 weeks ago
1 day ago
