This compatible combustion chamber is designed for Webasto Air Top 3500 and 5000 ST heaters, helping restore stable combustion and reliable heating performance. It supports efficient fuel–air mixing and consistent heat output, ensuring smooth operation even in demanding conditions. Its OEM-style fit makes it ideal for maintenance, repair, or full heater rebuilds.
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Aftermarket replacement part, compatible with Webasto Air Top 3500 / 5000 ST
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Part Number: 9004220
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Function: Combustion chamber
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Supports efficient and stable combustion
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Improves airflow and burning efficiency
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Made from high heat-resistant steel
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Durable construction for long service life
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Direct-fit design with OEM-style compatibility
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Suitable for heater servicing and performance restoration
