World's Largest Aftermarket Motorcycle Parts and Accessories Superstore!


J&P Cycles® Round Key Ignition Switch

J&P Part: 3700021

8 Reviews

Select your motorcycle to guarantee fitment! Select A Motorcycle

  • J&P Cycles® Round Key Ignition Switch
Product may vary from photo(s).


The Gold Club is our premier membership program. For most items members receive 10% off every day, plus exclusive sales and benefits just for members. More Info Gold Club Price: $22.49

8 Reviews

Shipping & Delivery

Checking availability...

– Order in the next to ship today

[+] Pickup in our Retail Stores

Description for J&P Cycles® Round Key Ignition Switch 

J&P Cycles® Round Key Ignition Switch

• This switch features the round key design found on all Dyna Glide (except FXDWG) models

• It has two-position activation with a positive detent to retain the key in the off position

• Ignition switch will also fit 1975-85 FX, 1982-94 FXR, 1979-96 Sportster with simple wiring

• (OEM 71428-90A)

Product Specs

Key Type: Round

OEM Reference: 71428-90A

Sold in Units: Each

Fitment for J&P Cycles® Round Key Ignition Switch 

Select your motorcycle to guarantee fitment! Select A Motorcycle

Click (+) to view all compatible models

Harley-Davidson® Models

Dyna Low Rider Convertible FXDS-CONV : 1994–1997
Dyna Low Rider FXDL : 1993–1997
Dyna Super Glide Custom FXDC : 1992
Dyna Super Glide FXD : 1995–1997
Dyna Super Glide Sturgis FXDB-S : 1991

Customer Reviews for J&P Cycles® Round Key Ignition Switch 

Overall Rating:
5/5 based on 8 ratings

5 by


5 by

Nice and easy replacement. Thank you J&P for the quick delivery!

5 by

Very happy with ignition, easy installation, and priced right. I was back on the road 10 minutes after it arrived.

5 by

switch worked as a replacement for one that fell apart 59 miles from noware

5 by

use this on my golf cart so ever one don't have a key to my golf cart

5 by

This was a great product. I replaced original Harley switch with one that would turn on the light whenver the switch was on. Works super.

5 by

Seems very sturdy and installation was a breeze..(even with my limited electrical abilities.) The housing is much bigger than the old barrel style 3 position switches so you may have to modify your horm mount on some of the older FX/XL side mount style Harleys.

4 by

A little rough at first. Once I put some dry graphite in the tumblers it was like butta

Load More Reviews

Important Product Notes

Once opened, electrical items cannot be returned, except in the case of a manufacturing defect.

Fast Free Shipping on Orders at $39 & Over
Free Tech
120 Day

Select Your Motorcycle

Live Help

Get Help From Our Industry Experts

Call Us
7 a.m.–9 p.m. CST (Monday-Friday)
8 a.m.–6 p.m. CST (Saturday-Sunday)
9 a.m.–5 p.m. CST (Christmas & New Year's Eve)
Closed (Christmas & New Year's Day)
8 a.m.–10 p.m. CST (12/26/17 & 01/02/18)


Help / FAQs