Overview
The Fuel Hose Assembly (P/N LW-12799-6-090) is a critical component within the high-pressure fuel delivery system of Lycoming IO-720 series engines. This specific hose assembly is engineered to transfer fuel from the engine-driven fuel pump directly to the fuel manifold or individual fuel injectors, ensuring a consistent and reliable supply of fuel under pressure. Its primary role is to accommodate engine vibration and movement while maintaining fuel system integrity, preventing leaks, and supporting the precise fuel metering required for optimal engine performance and combustion.Specifications
This high-pressure fuel hose assembly is designed for the demanding environment of aircraft engine operation.- Part Number: LW-12799-6-090
- Manufacturer: Lycoming Engines
- Nominal Internal Diameter: 3/8 inch (indicated by the "-6" in the part number, signifying 6/16ths of an inch)
- Overall Length: Approximately 9.0 inches (indicated by the "-090" in the part number, signifying 9.0 inches)
- Construction: Typically features a smooth-bore PTFE (Polytetrafluoroethylene) inner tube for chemical resistance and low friction, reinforced with a high-strength stainless steel wire braid for burst pressure resistance and flexibility. An outer protective sleeve, often a silicone-impregnated fiberglass or similar material, may be included for abrasion and fire resistance.
- Fittings: Equipped with permanently swaged, corrosion-resistant end fittings, typically AN (Army-Navy) style or proprietary Lycoming designs, ensuring a secure, leak-proof connection to the fuel pump outlet and injector manifold inlet. Fittings are commonly constructed from stainless steel or anodized aluminum.
- Operating Pressure: Designed to withstand typical aircraft fuel injection system p
AI disclosure: this product description and its specifications were generated with AI assistance from the manufacturer's Illustrated Parts Catalog.
- Stock: Out of Stock
- Manufacturer Part #: LW-12799-6-090
- Part#: LW-12799-6-090
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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 only to customer-remorse returns and customer-initiated cancellations. If a problem is our fault (our cancellation, unavailability, wrong item, confirmed defect, or shipping damage) your refund is 100% with no fees.
- Return shipping: paid by buyer on customer-remorse returns; we pay return shipping when the problem is our fault.
- 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.
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