+$250 Core Exchange Charge
Part# 08-01339
MFR Model# 4310
SLICK MAGNETO 431008-01339


NOTE: Please remove drive gears before returning Magneto cores for "Core Credit."

These lightweight aircraft magnetos are being used by many new equipment manufacturers. Weigh only 3-3/4 lbs. compared to 6-1/4 lbs. for typical old style magnetos.

In early 1988, Slick discontinued the sale of re-manufactured magnetos to offer new units only.

All units carry a one-year warranty after delivery to the user. These model magnetos are completely rebuild-able. The old 4000/4100 series magnetos and the 600 series magnetos may not be returned as an exchange unit for a new magneto of the same model. Most other Magnetos may be returned for core credit.

Drive gears are not included. *When purchasing slick magneto separately gaskets are not included.

Click link below and find correct harness number for your application.

Champion Slick Harness with 5/8 Plugs Application Guide (PDF)
Champion Slick Harness with 3/4 Plugs Application Guide (PDF)
Full Slick By Champion Application Guide (PDF)

4300 series is a direct replacement for previous 4200 series Magnetos.

All Slick Magneto and harness prices shown are well below Slick Factory list price; we will beat any competitor's "Advertised Price!"
    Slick Harnesses in Custom Colors:
    Slick harnesses come standard in red. Harnesses are available in black on a special order basis.

For Slick harnesses, click here.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -

Application Guide

* Applications listed in the charts below are the most common. For additional application information please see the complete application pdf above.


(See Note)
Magneto*Rotation & ImpulseNew Magneto (Exchng)

Complete Harness
(2 Mags)
Sparkplug Connector
Continental A65-8, A75-8, C75-8, C85-8, C90-8
R.H. with Impulse
Continental C75-12, -15, C85-12, -14,-15, C85-12F,-14f, -15F***, C90-12,-14,-16***,0-200A,B,C
L.H. with Impulse


0-290***, 0320, 0-360, 10-320E1B, E2B

L.H. Direct Drive

Lycoming 0-235 0-290***, 0-320, 0-360 IO-320E1B,E2B AEIO-320E1B,E2B AEIO-360B1C6, H1A


L.H. with impulse
L.H. with Impulse
VW Conversion Single Ignition
R.H. with Impulse
(1 Mag)
Starts determined by engine manufacturer.
Lag angles: 4350 - no lag, 4351 - 20 lag, 4281 - 5 lag.
Magneto Flange Gaskets not included.
Order Lic. #62224 or Cont. #535324.

* 4300 series replaces 4200 & feature improved cases & new bearings. Drive Gear No. 36066 applicable to Cont. A65-8, A75-8, C75-8, C85-8, C90-8,C85-12-14-15, C90-12-14-16 and 0-200A,B,C w/ light accessory case. Please call for price and availability.
*** The magnetos shown will fit the engine but installation is not FAA approved. Form 337 required. Note 2: Specify adapter thickness. M2638-1 (.560"), M2638-2 (.660"), M2638-3 (.760"), M2637 (.810"), measured from mounting pad to front of engine gear.
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Charles D
February 22, 2021

Worked great, easy paperwork for core return

Michael C
January 11, 2021

Delivered quickly, installed and work perfect. Thanks, Mark

Mark M
August 11, 2020

Might check into sureflight solid state mags for a certified replacement.

Phil S
June 30, 2019

NO gasket included with new very expensive magneto. Should have been included. Ordering this through Spruce Aircraft took 3 tries and there was no call back when I was told I would receive one. Was on hold for many minutes. The last rep did a good job.

William M
June 13, 2020


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 there any restrictions on what type of magneto may be returned for core credit (not exchange)?

4000/4100 series are not accepted as cores, 4200 and newer series mags are acceptable. Some competitor mags are accepted, but please verify first with sales to be sure your mag will be accepted.

Q: If I replace my 4200 with the 4300, do I have to get a new wire harness and drive gear or can I use the old ones off the 4200?

Both the harness and gear from a 4200 mag will work on a 4300 mag with no issues, that said if the harness is as old as the 4200 mag (25+) years it absolutely needs to be replaced as well.

Q: Is 4330 slick magneto sold with impulse coupling?

Yes, the 4330 Slick Magneto is sold with an impulse coupling.

Q: Is the Slick Mag 4373 sold with impulse coupling?

Yes, the 4373 mage is sold with an impulse coupling.

Q: Is there a time limit after ordering a new Magneto to return the old magneto for core charge refund? Do I have to pay the core charge in advance and receive a refund after returning the old magneto? Best Regards Thomas Kaufmann Switzerland

Yes, you will have to pay for the core in advance and once we receive your core we will refund you back you money. There is no set time limit on how long you have to return the core.

Q: Do you accept core returns of Unison Industries Slick Magneto 4371 for core credit on the purchase of Champion Slick Magneto 4371?

Per Champion: No. We no longer accept Unison Industries magnetos as cores.

Q: Will the drive gear off my 4001 fit a 4301? If I buy two new 4301s will I have to return cores? Thanks

The gear is the same but the 4001 series is not an acceptable core. You would have to provide 4200 or 4300 series cores.

Q: Do all these magnetos you are currently selling have the new distributor gears with monel electrodes and not copper?

Yes, they are all updated.

Q: Would a Slick 4373 with impulse coupler be a direct drop in replacement for my Slick 4371 with impulse coupler?

Per Champion, it could be a direct replacement if experimental and the have the correct prop and starter. It would not likely be a replacement on a certified aircraft.

Q: Are 4300 series Unison mags acceptable cores for 4300 series Champion mag?

Yes, that is a good core.

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