Pyhodi Aluminum Inline Radiator Hose Filler Neck 32mm with 16 PSI Cap — T6061 Polished

Pyhodi's 32mm aluminum inline radiator hose filler neck cap is a durable, polished T6061 alloy in-line filler that welds into a 32 mm upper radiator hose and provides a 16 PSI pressure relief setting for easy, clean coolant filling.

This compact inline filler neck is built from T6061 aluminum for corrosion resistance and longevity, offering a practical way to add or top up coolant without removing large hoses or relying solely on the factory neck. Its 32 mm (1.26 in) diameter suits nonstandard hose projects — especially custom cooling setups — and the included 16 PSI cap balances pressure control with system accessibility. The cap's polished finish and threaded design prioritize a tight seal while simplifying service and visual presentation under the hood.

How does this inline filler neck make coolant top-ups easier?

The Pyhodi inline filler neck mounts directly into an upper radiator hose so you can add coolant at a convenient point without removing piping or working through cramped factory necks. Filling from an inline port reduces spills and lets you monitor flow while bleeding air.

• Installs into a 32 mm hose for direct access mid-hose.
• Polished cap threads provide a secure, leak-resistant seal.
• Removes quickly for fast, tidy coolant pours and checks.

Will the 16 PSI cap work with my vehicle's cooling system?

The included 16 PSI cap is a common pressure rating that matches many aftermarket and performance cooling systems. It helps maintain normal operating pressure while allowing safe pressure relief under higher temperatures, but always compare with your vehicle's specified pressure rating before fitting.

• 16 PSI relieves excess pressure to protect hoses and components.
• Suitable for many custom and upgraded cooling setups.
• Not a guaranteed factory replacement—check your manufacturer's specs.

How robust is the T6061 aluminum construction for long-term use?

T6061 aluminum is widely used for automotive fittings because it balances strength, corrosion resistance, and machinability. The filler neck's solid alloy body and polished surface resist grime and oxidation, giving a long service life when welded and installed correctly.

• T6061 alloy resists corrosion from coolant and environmental exposure.
• Polished finish sheds dirt and simplifies visual inspections.
• Engineered for welding onto a 32 mm pipe for permanent installs.

What do I need to install this inline filler neck?

Installation typically requires welding the neck onto a 32 mm upper radiator hose or pipe, plus secure clamps or hose connections upstream and downstream. Basic fabrication skills or a shop visit are recommended for a durable, leak-free installation.

• Welding onto a 32 mm pipe or adapter for permanent mounting.
• Standard hose clamps or custom hose ends to recomplete the circuit.
• Visual and pressure testing after installation to ensure seal integrity.

Who is this for: The Pyhodi 32mm inline filler neck cap is aimed at DIY mechanics, custom car builders, and technicians who modify cooling systems or need a cleaner way to fill and bleed coolant. It's especially useful for vehicles with nonstandard hoses, aftermarket radiators, or performance cooling upgrades where an accessible inline fill point improves maintenance speed and reduces spills. If you prefer a polished, durable filler option and have access to basic fabrication or welding, this filler neck provides a reliable, service-friendly solution for coolant management.