0750142-1 - Textron Aviation OEM Fuel Strainer Bowl Gasket

0750142-1 – Textron Aviation Fuel Strainer Bowl Gasket

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The Textron Aviation 0750142-1 is a genuine OEM, flight-critical gasket specifically designed to create a positive, leak-free seal between the fuel strainer (gascolator) bowl and the strainer head assembly. This component is essential for the integrity of the fuel system on a vast range of Cessna single-engine aircraft. Its primary function is to contain aviation gasoline (Avgas) under system pressure, preventing dangerous fuel leaks in the engine compartment while allowing for the removal of the strainer bowl for cleaning and inspection.

Manufactured by Textron Aviation to their exacting specifications, this gasket is precision die-cut from a specialized composite material, typically a cork and synthetic rubber (Nitrile) blend. This specific formulation is chosen for its excellent resistance to swelling, shrinking, and degradation when exposed to aviation gasoline and its additives. It is also designed to provide the correct compressibility ("squish") to form a tight seal under the clamping force of the strainer bail wire or retaining nut without being extruded or damaged.

Key Features

• Genuine Textron Aviation OEM Part: Guarantees the correct material composition, precise dimensions, and compressibility required for a reliable, leak-free fuel seal.

• Seals Fuel Strainer Bowl: Creates the critical seal between the gascolator bowl and the upper strainer housing, preventing fuel leaks.

• Avgas-Resistant Material: Manufactured from a high-quality cork/Nitrile composite specifically engineered for long-term compatibility with 100LL aviation gasoline.

• Precision Die-Cut for Perfect Fit: Ensures correct alignment and even sealing pressure around the entire circumference of the strainer bowl flange.

• Single-Use Design for Seal Integrity: This is a crush-type gasket designed to be replaced every time the fuel strainer bowl is removed to guarantee a fresh, leak-free seal.

Technical Specifications

• Part Number: 0750142-1

• Component Type: Fuel Strainer Bowl Gasket

• OEM Manufacturer: Textron Aviation (Cessna)

• Material: Cork and Synthetic Rubber (Nitrile/NBR) Composite.

• Application: Seals the fuel strainer (gascolator) bowl.

• Fluid Compatibility: Aviation Gasoline (Avgas 100LL).

Aircraft Compatibility

The 0750142-1 is the standard fuel strainer bowl gasket on a vast majority of Textron Aviation (Cessna) single-engine aircraft. Common applicable models include, but are not limited to:

• Cessna 150, 152

• Cessna 172 Skyhawk (many models)

• Cessna 177 Cardinal

• Cessna 180, 182 Skylane, 185 Skywagon

• Cessna 206 Stationair, 207 Skywagon, 210 Centurion

Crucial Note: The specific aircraft model and serial number must be checked against the latest revision of the official Textron Aviation (Cessna) Illustrated Parts Catalog (IPC) to ensure correct part number applicability.

Applications

• Primary seal for the fuel strainer (gascolator) bowl.

• Mandatory replacement part during fuel strainer cleaning and inspection (typically performed at annual/100-hour inspections or as needed).

Why Choose 0750142-1?

Choosing the genuine Textron 0750142-1 gasket is a critical decision for flight safety. A leaking fuel strainer is a severe fire hazard, especially located firewall-forward. Re-using an old, compressed, or hardened gasket, or using a non-certified gasket made from an incorrect material (like plain cork or automotive-grade rubber), is guaranteed to lead to a fuel leak. Aviation gasoline is highly aggressive towards incompatible materials. The genuine Textron OEM gasket is manufactured from the specific, certified cork/Nitrile composite that provides the necessary fuel resistance and compressibility for a safe, reliable, leak-free seal.

The material science behind the 0750142-1 gasket combines the properties of cork and Nitrile rubber for optimal fuel sealing. Cork, composed of suberin-filled plant cells, offers excellent compressibility and conformability, allowing it to fill minor imperfections in the mating flange surfaces. However, cork alone lacks sufficient resistance to aviation fuels. Nitrile rubber (NBR), specifically a compound with high acrylonitrile content, provides the necessary chemical resistance to prevent swelling and degradation from the aromatic hydrocarbons in Avgas. By impregnating and bonding the cork granules with a high-percentage Nitrile binder, the resulting cork/rubber composite leverages the compressibility of cork and the fuel impermeability of Nitrile. This creates a gasket that can achieve a high-integrity seal under moderate clamping pressure (typical for gascolator bails) while remaining chemically stable in constant contact with fuel. The specific ratio and granule size are engineered to achieve the desired balance of compressibility and fluid resistance required by the OEM application.

Note: This is a flight-critical fuel system component. It is a single-use gasket and MUST be replaced with a new one every time the fuel strainer bowl is removed. Re-using a gasket will result in a fuel leak and a severe fire hazard. Ensure the sealing surfaces on the strainer head and bowl are perfectly clean and free of old gasket material or debris before installing the new gasket. After installation, perform a thorough leak check in accordance with the maintenance manual.

Documentation

The definitive part number applicability and installation procedures are detailed in the applicable Textron Aviation (Cessna) Illustrated Parts Catalog (IPC) and Maintenance Manual for the specific aircraft model and serial number.