Part# 08-11684
MFR Model# SL18639
Vendor Part NumberQuantity NeededDescriptionPart Number
SL186391Lock Plate Crankshaft 08-11684


Lycoming engines are the culmination of hundreds of parts improvements made over the last six decades.

In Accordance with Textron-Lycoming Mandatory Service Bulletin 240R
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best fitting aftermarket out there.

Darryl F
March 16, 2021

Great product. works as described

Bens M
May 30, 2020

Prompt delivery and a good quality pump.

Don J
December 9, 2018

Replacement pump well packaged and now working to specification. Maybe I missed the information in the listing but suggest you state that the overhauled pump comes with gasket and O-rings. I ordered an extra pump to accessory case gasket.

Roger H
September 15, 2018

Installed on an M20-j. Pressure is right on the redline for the airframe. It’s well within specs for the engine. Worked as expected.

Brad B
June 22, 2018

James H
December 15, 2017

The old Vernatherm had failed and the engine was running hot oil, the new one works as advertised. Now 4 hrs.

Robert C
August 19, 2017

Disappointing that I had to buy the intake and oil return hoses separately.

Robert W
June 4, 2018

No problems except didnt have instructions for return of pump for credit.

Kim P
October 30, 2017

Rod bolts are fine. Didnt appreciate that they were rattling around loose in the box at 23$ each.

February 8, 2018


Please note, Aircraft Spruce Canada'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 Canada 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: Does the gasket kit include intake tube rubber hoses?

No. They are not included.

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