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CYLINDER BASE NUT WRENCHES 64942 / 64943

From $48.70 to $74.50
Description Part No. Price Buy
1/2" Allen Head Hex Wrench
Lycoming 64942
64942 $48.70
Quantity
3/8" Allen Head Hex Wrech
Lycoming 64943
64943 $48.70
Quantity
Cylinder Base Nut Wrenches Set
Lycoming 64942 & 64943
12-04722 $74.50
Quantity
Subtotal $0.00
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Overview

For lycoming engines
For socket type nuts (internal wrenching)
Standard 1/2" square female drive end
Made from alloy steel forgings, heat-treated for maximum toughness.

Reviews

I purchased the two wrench set for a narrow deck O-320. Neither wrench have the clearance needed to engage the socket cylinder head bolts. They will have to be modified. Disappointed.

R H
May 16, 2019

I chose to backorder the wrenches, and Aircraft Spruce sent them as soon as they got some inventory. Very good quality wrenches. I bought these NEW from Aircraft Spruce for LESS than used ones selling on eBay. Thank you!

John B
January 6, 2018

Q&A

Q: What are the size of these 2 wrenches? (64942 & 64943)

The 64942 has a 1/2" allen head hex, and the 64943 has a 3/8" allen head hex.

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