Overview
The Lycoming Accessory Gear Shaft (P/N LW-13133) is a critical internal component of the Lycoming O-235 series aircraft engines. Situated within the engine's accessory case, this shaft plays a vital role in transmitting rotational power from the engine's crankshaft gear train to various engine-driven accessories. Its primary function is to provide the mechanical drive for essential systems, such as the engine's oil pump or a specific magneto, ensuring their continuous operation during engine runtime. Proper functioning of the LW-13133 is paramount for the reliable operation of these critical engine accessories, directly impacting lubrication, ignition, and overall engine health.Specifications
- Part Number: LW-13133
- Manufacturer: Lycoming Engines
- Material: High-strength, heat-treated steel alloy, precisely machined for durability and wear resistance.
- Finish: Typically phosphated or black oxide treated for corrosion resistance, with critical bearing surfaces polished.
- Weight: Approximately 0.5 - 1.0 kg (estimated, exact weight varies by specific manufacturing batch and detailed design).
- Dimensions: Features precision-machined splines or gear teeth on both ends for engagement with mating gears. Overall length and diameter are specific to the O-235 accessory case design, ensuring precise fit and alignment.
- Design: Incorporates specific gear tooth profiles and spline counts designed to intermesh with other accessory drive gears and provide secure attachment points for driven components.
Aircraft Compatibility
This Lycoming Accessory Gear Shaft, P/N LW-13133, is specifically designed for integration into the Lycoming O-235 series of four-cylinder, direct-drive, air-cooled, horizontally opposed piston aircraft engines.- Stock: Out of Stock - On Backorder
- Manufacturer Part #: LW-13133
- Part#: LW-13133
Aircraft Fitment Finder
Returns & refund summary
- 30-day return window — with prior return authorization, unopened in original packaging.
- Restocking fee: 20% on unopened items, 30% on open-box items.
- Refund processing fee: 5.51% applies to all refunds (returns, cancellations, core-fee refunds) regardless of reason.
- Return shipping: paid by buyer.
- Non-returnable categories: installed/used parts, special-order or rebuilt items, programmed items (incl. ELTs), batteries, AOG-priority orders, international orders.
Full terms: Return Policy.
Authenticity & authorization
All parts sold by American Aviation Parts are genuine factory products sourced through authorized distribution channels. Our authorization status varies by brand — for some brands we are a direct authorized dealer; for others we are an independent reseller through authorized distribution. Either way, the part you receive is the same factory product, with standard documentation available on request.
See our full Manufacturer Authorizations page for the current per-brand status.
Need traceability paperwork?
If your installation requires FAA Form 8130-3, manufacturer Certificate of Conformance, or other traceability documentation, please call 1-877-722-8727 or email [email protected] before placing the order so we can confirm what is available for this part.
Shipping
Standard ground, expedited, and AOG shipping options are available at checkout. Full shipping-cost tiers and timelines are published on our Delivery Information page.
