Urethane Cone Style Engine Mount Bushings

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Part# 08-07392


These engine mount bushings are made of a special urethane formula which outlasts most other mounts. They have been in use on smaller 4 cylinder Lycoming engines from the 0-235 series to the GO-480 series for years, and are now available to the experimental aircraft market.


  • These cone type mounts are applicable to the following engine models:

    O-235-C1, -C1B, -C2A, -C2C, -F, -F1B, -G2A

    O-290-D, -D2, -D2B, -D2C

    O-340-A, O-340-B

    O-320-A2A, -A2B, -A2C, -A3A, -A3B, -A3C, -B2A, -B3A, -B3B, -B3C, -E1A, -E2A


    O-435-A, -A2

    GO-480-B, -B1A6, -B1B, -B1C, -B1D, -C1B6, -D1A, -F6, -F1A6, -F2A6, -F4A6, -G1A6, -G1D6, -G2D6, -G2F6, -G1H6, -G1J6.


  • ID: .500"
  • OD: .85"
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Great Product but does not fit on Lycoming O-290-D2 series engine. I used PN: 60883 for my 5-point (on firewall) mount.

Collin M
August 20, 2022

Face it, urethane is a much better material for these mounts! But be careful in ordering - I have the O-235-C (with no suffix!), and these dont fit. The neck coming off the small end of the cone is found on later O-235s, but not my ol reliable. Replacing the ones that had been on the engine for 18 months - it was fun to see the deformation in the old mount. Makes me wonder if I will have to worry about the new mounts and the spinner rubbing the cowling.... Pretty clearly I should have replaced the conical mounts on about a 5 year interval.

Preston K
January 8, 2020

will yse them on my o-290 as Ive got them on my o-235 they go on nice

May 27, 2017

Didn’t fit my O-235-C2C. Needed part number 71032 instead.

Kevin P
August 25, 2021

They dont fit like stock ones, I have 0-320 A2B. They are too long and the cone is smaller on the small diameter of cone. Not sure how they are suppose to work but I cant use them and I needed them today to mount my engine....

Gregory S
December 25, 2019


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 are the dimensions of the URETHANE CONE STYLE ENGINE MOUNT BUSHINGS?

Approximate dims: 1.625" Diameter of Larger End, .84" Diameter of Smaller End, .50" ID, 1.325" Length

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