Universal pilot burner assembly designed as a direct replacement for part 002003F used in many pool and spa heaters. Built for reliable ignition, temperature exposure, and longer service life. Key benefits Improved ignition efficiency for faster, more reliable starts. temperature resistant glass fiber tube protects ignition cables from heat exposure. Durable construction designed to withstand repeated heating cycles and regular use. Compatible with both Natural Gas and LP (Liquid Propane) for flexible installations. Direct OEM fit to simplify replacement and reduce installation time. Features and specifications Function: Pilot burner assembly and igniter for pool and spa gas heaters. Fuel compatibility: Natural Gas and LP (Liquid Propane). Material: temperature resistant glass fiber tube and heattolerant components. Performance: efficiency ignition and improved durability to extend service intervals. Direct replacement for part 002003F to match OEM specifications. Compatibility Compatible with the following models and model ranges used in pool and spa heaters: 106A, 156A, 181, 183, 185, 401, 403, 405; also fits models 53A, 53B, 055A, 151, 153, 153A, 0155A, 181401, 183403, 183A403A, 185A405A, 206A, 266A, 336A, 405B, 406A, R403, RP2100, and R156A. Listed compatibility references equipment model numbers for fit verification. Use scenarios Routine maintenance: a worn pilot assembly during scheduled heater servicing to restore reliable ignition. Emergency : Swap a failed pilot burner assembly to get a pool or spa heater back into operation quickly. Fuel conversion or upgrade: Install when converting between Natural Gas and LP applications or when upgrading ignition performance. Installation notes Designed as a direct replacement to match OEM part 002003F for straightforward installation. Verify model and part number compatibility before to ensure proper fit. This pilot burner assembly provides a practical, durable replacement option to restore ignition performance in compatible pool and spa heater models.