Description
Main benefits
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Hermetic seal that prevents refrigerant leaks and maintains optimal pressure in the A/C system.
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Compatible with diagnostic tools and standard charging machines (universal Schrader valve).
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Resistant to corrosion and high pressures of the automotive air conditioning system.
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Economical replacement (~€3-15) that prevents costly repairs due to refrigerant contamination.
Features and materials
Type: Schrader service valve (valve core insert) for high/low pressure A/C ports.
Material: Nickel-plated brass + rubber seal resistant to R134a/R1234yf refrigerants.
Thread: M10x1 or M12x1.5 (standard VAG A/C), height ~25mm.
Replaces worn cores that cause slow leaks or prevent manometer connection.
How to use / who it's for
Usage: Replace during A/C maintenance (every 2-4 years) or when the pressure gauge doesn't seal.
Tools: Valve core remover (~€5) + torque wrench to prevent overtightening.
Ideal for workshops, junkyards, and owners who recharge A/C DIY with gauge/gas kits.
Why choose it
Unlike generic Chinese parts, OEM VAG 8E0820855 ensures precise torque (4-5 Nm) and full compatibility with official diagnostic machines.
Prevents system contamination due to faulty cores that introduce moisture/dirt.
Frequently asked questions (FAQ)
For high or low pressure side?
Universal for both A/C ports (high/low pressure).
What tools do I need?
Valve core remover + torque wrench 4-5 Nm.
Compatible with R1234yf?
Yes, it seals both R134a/R1234yf refrigerants.
How long does it last once installed?
2-4 years or 40,000 km of typical A/C maintenance.
Compatibility of valve insert 8E0820855
The valve insert 8E0820855 is a universal OEM replacement part from the VAG Group (Volkswagen, Audi, SEAT, Skoda, CUPRA) for the service ports of the air conditioning (A/C) system. It is used on both sides (high/low pressure) for maintenance, diagnosis, and recharging of R134a/R1234yf refrigerant.
Main compatible models
Compatible with +310 VAG models from ~1998 to present (not exclusive to a specific model):
Technical Specifications
- Refrigerant: R134a / R1234yf
Original VAG Group part manufactured to factory specifications. Prevents refrigerant leaks and costly A/C compressor repairs. Economical featherweight shipping.
Add the 8E0820855 VAG valve insert to your cart and professionally seal your A/C system!
Compatibility
Returns policy
Our goal is for every customer to be completely satisfied with their purchase. If you're not, let us know and we'll do our best to make it right.
Shipment
We will work to ship your order as soon as possible. Once shipped, you will receive an email with more information. Delivery times vary depending on your location.