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Part# 11-06874
MFR Model# 21M-PL060-SS
Bogert PNLengthDescriptionPN
21M-PL060-SS60P-LEAD 60" SLICK STYLE11-06874


P-Leads are a critical part of the ignition system and their good condition is vital to safety and airworthiness. P-leads are often overlooked and seldom replaced because replacement p-leads are not available from the aircraft manufacturer and materials to fabricate new p-leads are not commonly available. Because most leads are shielded, mechanics do not have the materials, tooling or the experience to fabricate p-leads.

These p-leads are fabricated using proper materials, genuine terminal kits and additional strain reliefs. Each lead is inspected and tested. It is the responsibility of the installing agency to certify that the p-lead is airworthy and matches the requirements of the aircraft.
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the P-leads are well made , and appear to be of high quality. what i expect from Arcraft Spruce.

Jerry B
April 3, 2020

Excellent quality and perfect length

Jay T
August 12, 2019

A good product.

Byron E
May 25, 2017

I was not all that impressed with the endings on these p-leads... they were literally your typical auto-motive electrical-connect crimps. I was not impressed with a few of the crimps so much that I ended up soldering, and insulating them myself.

July 16, 2017


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Are the wires marked which is the center conductor and ground?

The unit has a white wire with a terminal, and the ground/shielding is covered with shrink tubing and also has a terminal swaged on it.

Q: Are these sold as a pair of p-leads or does one have to buy a lead for each magneto?

This is one lead for one magneto.

Q: Are the slick mag leads shielded?

Yes, these are shielded.

Q: What is the gauge of the wire?

14 gauge wire.

Q: Question about the ground wiring: It seems clear that the black ground lug at the magneto end connects to the ground post on the mag. Where does the ground lug connect at the switch end, on the switch ground post? If so, can this cause ignition noise to get introduced into the aircraft electrical system? Thanks

Grounding the black ground lead at both ends is proper and correct. Typically, the ground lead is connected to the ground terminal on the mag switch. We do not have issues with noise on the radios because of this. An alternator system would be a different matter.

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