• Protective Caps, Plugs,
    and Sealing Solutions
    You Can Trust

    Caps & Necks delivers high-quality protective products designed to safeguard your parts during manufacturing, shipping, and installation. From gaskets to plugs, we provide durable solutions trusted across industries.

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Welcome to Caps & Necks

Precision Parts. Proven Expertise. Global Reach.

At CapsNecks, we manufacture precision fittings, caps, and necks used in critical applications across industrial, aerospace, and energy sectors. Our products are built to exacting standards for performance, durability, and reliability.

We maintain a comprehensive inventory of high-quality components, including custom-machined parts for specialized systems and assemblies. Each product is engineered and tested to meet the demanding requirements of modern manufacturing and distribution environments.

As part of a veteran-owned organization certified to ISO 9001 and AS9100D (AC-0056B), we deliver the same commitment to quality and traceability expected in aerospace-grade production while supporting industrial customers worldwide.

Learn more about us.

Caps

Caps

Lebow-Eaton manufactures a complete line of high quality caps for OEM and replacement use. Our caps are built for durability, consistent sealing performance, and compatibility across a wide range of filler neck sizes.

Designed for both production environments and single-piece users, these caps deliver reliability in demanding applications.

View our Caps.

Necks

Necks

Our selection of Lebow-Eaton filler necks offers precise fitment, consistent performance, and long service life. These necks are engineered to pair seamlessly with our caps and are available in several diameters to support both OEM and low-volume requirements.

View our Necks.

Radiator Caps & Necks

Radiator Caps & Necks

Lebow-Eaton radiator caps and necks are built for environments where heat, vibration, and pressure stability matter. Each component is designed to meet OEM quality expectations, giving manufacturers and end users a dependable solution for cooling system performance.

View our Radiator Caps & Necks.

J1114

J1114 Cap & Neck Parts

We supply a full line of J1114-compliant cap and neck components manufactured by Lebow-Eaton. These parts are built to exacting military and industrial standards, offering a dependable option for systems that require precise dimensions and long-term durability.

View our J1114 Cap & Neck Parts.

Need a Quote for a Part?

We make it easy. Whether you have a full or partial part number, or our team will help you find what you need.

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