+$200 Core Exchange Charge
Part# 07-02419
MFR Model# 122-12XLT
VoltageSky-Tec ModelRecommended forPart No.
12VOLT122-12XLTLycoming O-235 through IO-390 engine powered aircraft with 10/12 pitch, 122-tooth ring gears07-02419


The world's lightest starter ever certified for Lycoming engines. Only 6.5lbs!

All new design: Only 8 inches total length and 3.5 inches tall!

Left-side mounted solenoid. High torque and fast spin. FAA/PMA certified for most Lycoming 4-cylinder engines from O-235 to IO-390. The perfect starter for lightweight, high-performance aircraft like the Carbon Cub, high performance experimental aircraft or certified aircraft owners trying to improve performance and keep to lowest possible weight. Low current draw. Highly durable, fortified aluminum mount/housing. No Bendix to lubricate. Nothing to maintain. Another winner spinner from the great folks at Sky-Tec!

FAA/PMA Certified

2-Year factory warranty
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -

Core Return Policy

Any unit being returned for core or warranty core credit shall be, as removed from the engine, complete and not disassembled. No core or warranty core credit will be allowed for automotive units. Units that are rusty or cannot be overhauled for any reason will be classified as scrap, having no value. Units which have been weld repaired, as well as units which have been disassembled and then reassembled with old parts, will also be classified as scrap, having no value. A percentage of the core value will be charged for all missing or damaged parts. At no time will the damaged or missing parts charge on any unit exceed the core value of that unit.

1. Core will only be accepted for credit 12 months from date of invoice.
2. Cores returned in excess of cores invoiced will not be accepted.
3. Cores must be of like purchase, a directly superseded unit or replaced unit when installing an STC'd product.
4. Competitive product cores are acceptable returns.
5. Cores must have a legible data tag for part and serial number verification.

Note: Customer will need to provide core for overhaul in the event our supplier does not have cores available to overhaul.

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Great starter, but make sure you figure out a solution for the starter cable because it will likely be too short! Bogert sells both a 3 and 6 extension lead, but we opted to buy bulk cable and fabricate it ourselves.

April 19, 2021

Easy install and works great. Gave me about 9.5LBS useful load back.

Daniel M
November 5, 2019

This is a great starter. I use on my RV6A 0-360. Its quiet and powerful. I gained 9.5 lbs. by removing my Prestolite starter. The install was easy, exactly the same wiring.

Carl G
August 1, 2017

Good: this order was promptly and correctly shipped. The new starter worked perfect. Bad: But this is my second starter with only 200 hours. My original starter broke where the casting supports the front of the engagement gear (a SKY-TEC problem). I had to order twice as UPS messed up the shipping of my first starter replacement order.

Paul A
October 29, 2017

I installed this starter about two years ago before it failed. I look at what I paid then, about $600, and what it would cost me now, $1200 (+ core charge) and I feel frustrated with an inferior product and ripped off as a consumer. I will say: I should have gone with the high torque model as it has been working better than this ever did when it was new but the expense and the total lack of caring from Hartzell that their product failed in very little time still makes me give it one star.

Lincoln B
March 4, 2024


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: What is the difference between 10/12 pitch and 12/14 pitch, and also the difference between 122 and 149 tooth ring gears? Maybe a better question is why would a person choose one (pitch or number of teeth on the ring gear) over the other.

A 122 tooth ring gear has 10/12 pitch, and a 149 tooth ring gear has 12/14 pitch. These engines can use both ring gears, so you must identify what is installed on your engine to select the correct starter.

Q: What is the weight of the 149-12XLT starter?

Its just under 7 lbs.

Q: What is the warranty on these starters? And whatever it may be, is it from time of purchase or time of installation if I want to have one on the shelf for customers?

24 months/1000 hrs. Starts at time of install.

Q: I have a Skytec 149-12 LS, will you except this on core if I purchase a Skytec 149-12 XLT?

Yes, that would be a valid core.

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