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Mallory 29371 Circuit Guard For Electronic Ignitions Each Circuit Guard

Free shipping on orders over $29.99

$106.16

$ 43 .99 $43.99

In Stock
  • Fits 9" Ford with 31 Spline Axles
  • Limited Slip Differential with Composite Clutches
  • Fits all Gear Ratios
  • 4 Pinion Design
  • Fully rebuildable design and proudly assembled in the USA


Mallory 29371 Circuit Guard


James E. Moberly
2025-07-25 15:37:32
Super easy to install. Self adhesive backing made mounting a snap. As far as circuit protection, time will tell.
Frank wise
2025-07-20 15:44:33
after I lost an ignition module I thought that there must be a way to protect it from high voltages....and bam here it is.
Kindle Customer
2025-03-22 20:30:39
Seems to work good wouldn't run a Unilite dist. without one.
Sea Lion
2025-01-19 18:02:21
I don't know if it works or doesn't work but, still works!
Gary Lawyer
2025-01-11 18:33:00
Perfect glad to receive this product!! No problems so far good summer with my boat!!
Michael Sliwinski
2025-01-06 15:51:46
Product failed in less than 4 months and had to be removed from the vehicle in order to start the car. Ironic that the circuit guard was the offending component and led to a breakdown. A 30 day warranty is ridiculous on this part...
Linda A Freeman
2024-12-28 16:22:50
I like it
R TIMOTHY KANTOS
2024-12-18 09:58:19
Disliked made in China
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