A/C Valve Caps for R134a Systems – Brass High & Low Side Service Port Covers with O-Rings – Not Compatible with R12 or R1234yf (Set of 2)

These brass A/C valve caps are designed for R134a automotive air conditioning systems and include both high-side (H) and low-side (L) service port caps with sealing O-rings. The durable brass construction offers improved resistance to heat and engine-bay conditions compared to standard plastic caps. Most vehicles produced between approximately 1996 and 2016 are equipped with R134a systems; however, compatibility depends on the A/C system type and service port thread size, not vehicle brand or model year alone. Always verify your vehicle’s under-hood A/C label before purchase. These caps are intended to help protect service ports from contamination and support proper sealing when installed correctly. They do not replace or repair internal A/C valves.

Features

• A/C Valve Caps Compatibility: Designed for vehicles using R134a A/C systems (approx. 1994–2016). Not compatible with R1234yf systems (common in 2017+ vehicles).
• Heavy Duty Brass Solid brass construction provides durability and improved sealing protection for AC service ports.
• Leak Prevention: Helps maintain the integrity of your AC system by preventing refrigerant leaks.
• Easy Installation: Simply thread onto the charging port for a secure fit.
• Value Pack: Includes two caps, one marked ‘L’ and one marked ‘H’, to cover both low and high pressure ports.

Ships from our US warehouse to any Canadian province in 5-8 business days.