Fits the Snapper SZ2454 54 Zero-Turn Models Listed Below. SZ2454 – 2691422-00 – 17ADCACW007 SZ2454 – 2691567-00 – 17BRCACA007 SZ2454 – 2691573-00 – 17CRCACA007. Includes the Following Parts. (3) 18-5/8 6 Point Star Center Blades – Replaces Snapper 771387 (3) Spindle Assemblies with Hardware – Replaces Snapper 771373.