SKU: 90880337307

MSD Pro-Billet Ready-To-Run Distributor MSD83521

Sale price$750.90 Regular price$834.33
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

MSD Pro-Billet Ready-To-Run Distributor MSD83521Pro Billet Ready To Run DistributorFord 289 302 Windsor, Magnetic Pickup, Vacuum Advance, High Output Module With Steel Gear Brand: MSD Part Number: MSD83521 Description: Steel Drive Gear to suit Factory Hydraulic Roller Camshaft Simple and clean installation with only three wires to connect Powerful built in module produces a 7. 5 amp single spark through high rpm Easy to adjust mechanical advance with supplied springs and stop bushings Vacuum

Pro-Billet Ready-To-Run DistributorFord 289-302 Windsor, Magnetic Pickup, Vacuum Advance, High Output Module With Steel Gear
Brand: MSD
Part Number: MSD83521
Description:
  • Steel Drive Gear to suit Factory Hydraulic Roller Camshaft
  • Simple and clean installation with only three wires to connect
  • Powerful built-in module produces a 7.5 amp single spark through high rpm
  • Easy-to-adjust mechanical advance with supplied springs and stop bushings
  • Vacuum advance canister for improved economy (can be locked out)
  • CNC machined billet aluminium housing and billet aluminium base
  • Housing is 5/8" smaller in diameter than stock Ford distributors
  • Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range
  • Polished steel shaft is QPQ coated and guided by a sealed ball bearing
  • Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction
  • Mechanical advance assembly can be locked out for crank trigger systems
  • Advance weight pins are staked and tig welded to the plate.
  • Nylon pads ensure smooth operation of the advance weights
  • Supplied with small diameter cap with HEI style terminals and race rotor (will accept MSD8441 Cap-A-Dapt)
  • Does not require an MSD Ignition Control
  • Now includes built-in Rev Limiter
  • Note: Recommended coil is MSD8223

MSD Ready-to-Run Ford Distributors are the perfect upgrade for the bulky DuraSpark systems or ancient breaker point models. These distributors come complete and ready-to-run. All you need to do is drop it in the engine, connect three wires and fire the engine. Each distributor features an ignition module that produces a powerful inductive spark to improve combustion of the fuel mixture resulting in quick starts, smooth idle and increased performance. The billet aluminium housings of these distributors are 5/8" smaller in diameter to accommodate induction setups and tight engine compartments. A maintenance free magnetic pick-up is responsible for triggering the high voltage sparks while a sealed ball bearing guides an oversized shaft. Beneath the bolt down cap and MSD Race rotor you'll find MSD's accurate mechanical advance assembly. Different advance springs and stop bushings are supplied so you can easily tune a curve to match your needs. Plus, there is a vacuum advance canister to increase economy on long drives.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 90880337307

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 1156 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
joey
Charlottesville, US
★★★★★ 5
Smooth
Size: Medium, Color: White
Fit is good. Material good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
S
Verified Purchase
Sharina
Chelsea, US
★★★★★ 5
My absolute favorite boxers ever
Size: XX-Large, Color: White
I'm not a man, but I'm a nonbinary person with a big bottom and have tried many quality boxer brands over the years (including the unisex brands). These are my absolute favorite brand of boxers. They're super comfortable. It's taking me a while because I just keep forgetting to stock up but they are replacing all of my other boxers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
S
Verified Purchase
Sara meow
Natrona Heights, US
★★★★★ 3
Too large
Size: Medium, Color: Burgundy,lake Blue,dazzling Blue,bijou Blue
Nice but medium size was just too large. Suggest ordering one size smaller.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026
S
Verified Purchase
Steve
Fort Morgan, US
★★★★★ 5
quality fabric and custom fit
Size: Large, Color: Cerise,orange,yellow,light Blue
excellent fit and fabric. This is my second order of this product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
S
Verified Purchase
Safety Guy
Dallas, US
★★★★★ 5
Good fitting support !
Size: Medium, Color: White
Just what the man needed. Very good contoured support. No jostling. Not a loose potato sack after an hour of wearing this. Highly recommended. Compare? Hanes, for example. Even the Jockey brand. Put those on, they're tight fitting, seemingly supportive. But they're not. They aren't contoured to fit. That's the whole idea. Contoured, to fit. And stay fitted. The trunk type, just like this wirarpa, and in half an hour it's loose loose loose fitting. A potato sack. No support. No support at all. That's not what a trunk brief is supposed to do. It's supposed to support, give comfort and confidence, stay in place feeling. Assuredness. And this wirarpa Mens Trunk does the job ! Wash and wear and wash and wear. Stays in shape, never gets stretched out and loose, for the fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2024

recommand products