The Lycoming 18D26093 bearing is a precision-engineered component integral to the smooth operation of specific Lycoming reciprocating aircraft engines. This bearing functions within the engine's rotating assembly, providing a low-friction surface that supports rotating shafts, reduces wear, and minimizes energy loss due to friction. Its critical role ensures proper alignment and robust performance of the engine's internal moving parts.
Specifications
- Part Type: Engine Bearing (Plain Bearing)
- Manufacturer: Lycoming Engines
- Design: Split-shell configuration, typically for crankshaft or connecting rod applications
- Material Composition: Commonly features a multi-layer construction, often a steel backing with a precision-machined, anti-friction alloy overlay (e.g., lead-tin-copper or aluminum-based alloys) for optimal wear resistance and load distribution.
- Surface Finish: Extremely smooth, designed to minimize friction and prevent galling under high operational loads and temperatures.
- Dimensional Tolerances: Manufactured to stringent specifications to ensure precise fit and proper oil film thickness, critical for engine lubrication and longevity. Specific dimensions vary based on its exact placement within the engine, but are held to micro-inch tolerances.
- Weight: Optimized
2 required per aircraft (per the manufacturer IPC).
- Stock: Out of Stock - On Backorder
- Manufacturer Part #: 18D26093
- Part#: 18D26093
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.
