618-06978 / 918-06978 Spindle Assembly 2-Pack for 54" Deck Lawn Mowers — Fits MT D / T8400, G8400, Z6600, Z6900, G8600, Cub Cadet RZT-L54, RZT-S54, Troy Bilt TB2454 & More

Replacement spindle assemblies (part numbers 618-06978 and 918-06978) designed for 54" mower decks. This 2-pack supplies two spindles for convenient maintenance and a cost-effective replacement option. Compatible with a wide range of models including MT D / T8400, G8400, Z6600, Z6900, G8600, Cub Cadet RZT-L54 and RZT-S54, Troy Bilt TB2454, and others. Built from high-grade materials for enhanced durability and extended service life, these spindles are engineered to withstand frequent use and tough operating conditions while delivering consistent, reliable performance.