Spheros 11112567C Control Unit SG 1553 24V | Fits Webasto DBW 2010 / 300 & Aqua-Hot AHE-600 (24V) | Replaces 9028630A, 30607B, WPX-306-07B($249.95Value)

Description

Verified Fitment: 24-Volt Electronic Control Unit (ECU) SG 1553 designed fit for Webasto and Spheros DBW Series commercial heaters (DBW 2010, DBW 2020, DBW 300, DBW 350, DBW 470). STRICTLY 24V ONLY – Check your existing label before ordering. Coach & Transit Application: Direct replacement for "Aqua-Hot" 24V Control Units found in Prevost, MCI, and Van Hool bus conversions. Replaces Aqua-Hot Part Number WPX-306-07B (Compatible with AHE-600-D and AHE-100-02S 24V systems). Cross-Reference Accuracy: Replaces discontinued Webasto / Spheros part numbers: 9028630A, 30607B, 30607C, 338362, 9023418A, and 11112567A / B. Fits "Blue Box" or "Black Box" SG1553 housings stamped with 24V. Professional Grade: OEM Spheros component featuring potted electronics for vibration resistance and moisture protection. Engineered for the severe duty cycles of transit fleets and heavy-duty hydronic heating systems. Installation Note: Plug-and-Play replacement for existing SG 1553 24V units. NOT compatible with 12V systems (Common in standard RVs/School Buses). Installing this 24V unit on a 12V heater will result in non-operation.

Spheros 11112567C Control Unit SG 1553 (24V) - Genuine OEM

The Spheros 11112567C is the genuine OEM replacement control unit for 24-Volt Webasto DBW series heaters. While visually identical to the 12V version, this 24V ECU is specifically engineered for heavy-duty transit buses, motorcoaches, and marine applications. It serves as the "brain" of the heater, managing the combustion cycle, flame monitoring, and safety shut-off protocols.

Critical Voltage Warning

This is a 24-Volt Unit. It is NOT compatible with standard 12-Volt RV or School Bus heaters. Please verify your existing control box is labeled "24V" or check your heater model plate (e.g., DBW 2010.24) before purchasing.

Verified Part Number Cross-Reference

• Replaces Webasto / Spheros: 9028630A, 30607B, 30607C, 9023418A
• Replaces Aqua-Hot: WPX-306-07B (24V Models Only)
• Replaces Older Numbers: 338362, 11112567A, 11112567B

Compatible Systems

Commercial Heaters: Webasto DBW 2010, DBW 2020, DBW 300, DBW 350, DBW 470 (24V Variants).
Bus & Coach: Fits hydronic systems in Prevost H3-45/X3-45, MCI J4500/D4500, and Van Hool coaches equipped with 24V Aqua-Hot systems (AHE-600 Series).