Au-ve-co Products 19002 Rubber Vacuum Cap 5/16 Inch

Product Description

The AU-VE-CO PRODUCTS 19002 is a rubber vacuum cap designed to seal 5/16 inch vacuum fittings on automotive and HVAC systems. It provides a secure, airtight closure on open vacuum ports during service, testing, or component storage. The cap is made from rubber, giving it the flexibility needed to seat firmly over standard vacuum nipples without tools. HVAC technicians and automotive service pros use this type of cap to protect vacuum circuits from contamination and unintended pressure loss during system work.

This cap is suited for use on vacuum lines and fittings found in automotive engines, HVAC equipment, and related systems where a 5/16 inch port needs to be capped off. Common applications include sealing unused vacuum taps on manifolds, intake components, and climate control assemblies during diagnosis or repair. It is a standard consumable item stocked by HVAC and automotive service shops.

Key Features

• Fits 5/16 inch vacuum fittings for a secure, airtight seal
• Rubber construction provides flexibility and a firm friction fit
• No tools required for installation or removal
• Protects open vacuum ports from debris and moisture during service
• Lightweight at 0.01 pounds for easy handling and storage

Compatibility

Designed as an OEM-style replacement vacuum cap for 5/16 inch vacuum fittings on automotive and light HVAC systems.

Installation Notes

Installation is performed by hand - press the cap firmly over the vacuum fitting until it seats. Before capping any vacuum port on a running system, shut down the equipment and relieve system vacuum pressure. Inspect the rubber cap for cracks or deformation before use, as a damaged cap will not maintain a proper seal. Caps should be replaced rather than reused if they show signs of hardening or tearing.