The SWAG Heat Exchanger Interior Heating (30 91 1089) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: for OE number: 1H1 819 031 B, Weight [kg]: 0, 713 kg, Supplementary Article/Supplementary Info: 35, Core Length [mm]: 158 mm, Core Width [mm]: 234 mm. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit AUDI, SEAT, SKODA, VW models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 002-60-00062, 003-015-0001, 00525, 049030N and 89 more. Matching these numbers confirms a like-for-like replacement with no loss of function. SWAG is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.

SWAG, part of the bilstein group based in Ennepetal, Germany, is a trusted independent aftermarket brand offering a wide range of quality replacement parts. SWAG specialises in engine components, suspension parts, steering elements, cooling system parts, and rubber-to-metal components. Manufactured to OE-equivalent standards with IATF 16949 certification, SWAG products deliver dependable performance at a competitive price point. As a sister brand to febi bilstein, SWAG benefits from shared German engineering expertise and rigorous quality control processes.