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Superior Lycoming Crankshaft Seal - SL11997

$85.75/Each
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Part# 08-03671
MFR Model# SL11997

Overview

LYCOMING CRANKSHAFT SEAL - SL11997

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Reviews

This seal is much easier to install than the doughnut seal. It has a larger rib that snaps into the seal groove and appears to be a better design with the spring molded into the seal...no spring to connect in an almost impossible area to access! The spring in this seal expands to clamp the inner diameter around the crankshaft and pushes the outer diameter into the seal boss. I installed the doughnut seal a year ago and it started leaking so decided to give this seal a shot. Engine power run on the ground with no leaks so far. I believe the doughnut seal is so hard to install that it is less likely we get a good result. Problems with either seal is likely due to installation errors. Follow Lycoming Service Instruction SI1324D meticulously!

Allen S
November 14, 2024

Norm P Verified Purchase

Superior SL11997 Crankshaft Sl For Lyc

September 2, 2023

Split seal did not hold. Get the non split seal.

Flyboys F Verified Purchase

Superior SL11997 Crankshaft Sl For Lyc

December 6, 2022

Norm P Verified Purchase

Superior SL11997 Crankshaft Sl For Lyc

January 20, 2022

Q&A

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: Is a spring included or is it part of the seal?

The spring is made into the rubber itself on this one.

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