Silicone End Cap

Silicone End Caps from AutoSiliconeHoses are designed to provide a clean, reliable seal for unused pipework, tubing, or connections in automotive, industrial, and commercial systems. Manufactured from premium smooth extruded silicone compound and compliant with SAE J20R3 standards, these end caps deliver flexibility, durability, and resistance to heat, ozone, and aging. With a simple push-fit installation, they offer a practical solution for sealing applications where long service life and thermal stability are essential.

Key Features:

• Material: High-quality smooth extruded silicone compound.

• Reinforcement: Unreinforced flexible silicone design.

• Internal Diameter Range: 4 mm to 38 mm.

• Overall Length: Typically 35 mm (20 mm size: 60 mm).

• Insertable Length: 30 mm.

• Operating Temperature: -50°C to +220°C, with peak up to +250°C.

• Standard: SAE J20R3 compliant construction.

Constructed from durable silicone, these end caps maintain flexibility even under continuous thermal cycling, making them ideal for applications where unused outlets or pipework must be safely sealed. Their unreinforced design ensures easy installation and removal while providing a snug fit for reliable closure. Resistant to weathering, ozone, and aging, they are suitable for both indoor and outdoor use in demanding environments.

Silicone End Caps are commonly used in automotive coolant and intake systems, motorsport modifications, pneumatic lines, and industrial fluid handling where unused connections require temporary or permanent sealing. AutoSiliconeHoses supplies a wide size range to meet varied installation needs, offering long-lasting reliability across both performance and professional applications.