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LYCOMING & CONTINENTAL CYLINDER BASE NUT WRENCHES

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9/16 in.1/2 in.5/8 in.3/4 in.Set of All 4
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Overview

Made of top quality tool steel. 12 Point with 1/2" square drive, 13" long.

Wrench
Part No.
Size Engine Application Price
Ea.
12-11200 Set of 4 $68.50
Or order individual wrenches below
2882 9/16"
Hex
C-85, 0-200, 0-300, G0-300, E-185,
E-225, 0 & IO-470, IO-360, IO-520
$18.95
2882-2 1/2"
Hex
A-65, C-85, 0-200, 0-300, G0-300, E-
185, E-225, IO-360
$18.95
2882-3 5/8"
Hex
A-65, 0-470, IO-520 $18.95
2882-4 3/4"
Hex
No longer used on Continental. Used
on Lyc. 0-390D, D2 & all wide deck
Lycoming engines.
$18.95

Reviews

good service

Steven R
June 23, 2020

So far very good

Robert A
August 26, 2019

Excellent product. I like the thicker walls because you can sand them down exactly the way you want. Its nice having a set of four ranches and my only critique would be that they could be 1 inch longer to accommodate the Ted Smith AEROSTAR. However these wrenches are more than adequate if you are on an engine stand and not trying to work around cowling.

Jason H
April 18, 2019

Used them for the first time to remove a cylinder from an O-360 Lycoming, they worked great, thought I may have to grind them down some for clearance, but actually they had enough bite that I didn’t have to grind them at all and they worked perfectly. It’s judt one cylinder so far but worked great.

Sherman C
December 15, 2018

Fit perfect on A65 and did what was needed

Andrew H
June 23, 2018

Purchased the 1/2 and 9/16 for use during the recent overhaul of my Continental O-200A. They worked perfectly and are a absolute necessity when removing and installing cylinders.

Yancey H
May 28, 2017

Wrenches were ok. Had to grind down thick walls just to fit into the nuts.

Larry
November 17, 2019

Your basic wrench! Did the job just fine. Not a craftsman or snap-on but it works. May need to grind the side to thin the wall a little for some cylinders depending on the casting - but not in my case.

Bill C
July 15, 2018

Worked well on an O-470-R but needed a little grinding to clear two of the cylinder base nuts near the engine mounts. Good value.

Matthew S
June 11, 2018

These wrenches are solid and work great, but only after you’ve ground down around the edge of where the nut sits. Most of the engine base nuts I remove with these are a closer fit than the wrenches allow. I’ve never came accros a base but wrench that works right out of the box, they’ve all needed to be ground down no matter the manufacture

Cordaro S
April 26, 2018

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