Lycoming

Aviation Part LW-10191

P/N LW-10191

Condition disclosed

Condition as listed — Condition disclosed — is shown up front on this listing, along with the exact price, current availability, and what certification paperwork ships with the part, so you can confirm fit and airworthiness before you buy. Full specifications and answers to common questions are below.

Stocked & sold by AAP

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On backorder

UOM EA · MOQ 1

Paperwork shown up front · 30-day returns · secure checkout

Request certification documents (8130-3 / EASA Form 1 / C of C)

Description

The Lycoming Piston Pin Plug (P/N LW-10191) is a critical internal component within the reciprocating engine's power section, specifically designed to secure the piston pin (also known as the gudgeon pin) within the piston assembly. This small yet vital part prevents axial movement of the piston pin, which connects the piston to the connecting rod, thereby ensuring the integrity of the piston-connecting rod interface during the engine's operational cycles. Its proper function is essential for maintaining the mechanical stability and longevity of the engine's rotating and reciprocating components.

Overview

The piston pin plug, identified as Lycoming P/N LW-10191, plays a pivotal role in the internal combustion process of the Lycoming TIGO-541 series engines. Positioned at the ends of the piston pin, these plugs act as retainers, preventing the piston pin from contacting and potentially scoring the cylinder walls. Without these plugs, the

AI disclosure: this product description and its specifications were generated with AI assistance from the manufacturer's Illustrated Parts Catalog.

Specifications

Part number	LW-10191
Manufacturer	Lycoming
Condition	—
Airworthiness	Condition disclosed
Country of origin	—
Lead time	days

Frequently asked

Does the Aviation Part LW-10191 include certification paperwork?

This item is supplied as "Condition disclosed" rather than with full 8130-3 traceability — normal for some condition codes, and it does not mean the part is unusable, only that the paperwork profile differs. Check the listing for exactly what documentation is included, and request any available records before you purchase if your installation requires them.

What condition is this part?

This part is listed in condition as listed — Condition disclosed. Condition codes describe how a part reached its current state (for example new, overhauled, serviceable, repaired, or as-removed) and directly affect what paperwork ships with it and how it should be installed. See the Glossary for the full definition of every condition code we use.

How fast does it ship?

This item is currently on backorder, meaning demand has temporarily outpaced our stock and a new shipment is inbound from the manufacturer or our supplier. Request a quote and we will confirm the current estimated delivery window before you commit. If your aircraft is grounded, AOG expedited handling is available on request.

Can I return it?

You may return this item within 30 days of delivery if it is unopened, uninstalled, and in its original packaging. Items that have been installed, powered on, opened hazmat, or separated from an attached 8130-3 tag are non-returnable because their airworthiness status can no longer be confirmed once removed from the part. See our Returns policy for the full process.