Upgrade your Worcester Bosch boiler with the genuine replacement Printed Circuit Board PCB, model number 8748300938. This essential component is designed to ensure your heating system operates efficiently and reliably. It's a direct fit for selected Worcester Bosch boilers, making it a must-have for maintaining indoor heating comfort. The PCB comes sealed with all genuine Worcester Bosch spare parts, assuring quality and compatibility. With the simplicity of corded electric power source integration, this single unit quantity is perfect for replacements or refurbishments, keeping your boiler running smoothly without the hassle of sourcing non-original parts.