Part number 4270018M1 RE51630 Overview aftermarket replacement part manufactured to OEM standards and rigorously tested at the factory. Designed as a directfit service part to restore original function and maintain reliable equipment operation across a range of tractor models. Key benefits Directfit replacement: Designed to match original specifications for fit and function, minimizing downtime during service. Factorytested quality: Produced to OEMlevel standards and inspected to ensure consistent performance and reliability. Improved uptime: Replaces worn or failed components to restore proper operation and reduce the risk of secondary damage. Easy to source for fleet maintenance: Single part number that fits multiple tractor families simplifies parts management. Compatibility Compatible for Agco Tractors: DT180A DT200A Tractors Tier 2 DT180A DT200A Tractors Tier 3 DT220A DT240A Tractors Tier 2 DT220A DT240A Tractors Tier 3 Compatible for Challenger Tractors: MT635B MT645B Tractors Tier 2 MT635B MT645B Tractors Tier 3 MT655B MT665B Tractors Tier 2 MT655B MT665B Tractors Tier 3 Compatible for Massey Ferguson Tractors: MF 8260 LST Tractor MF 8270 8280 Tractors MF 8450 8460 Tractors Tier 2 MF 8450 8460 Tractors Tier 3 MF 8470 8480 Tractors Tier 2 MF 8470 8480 Tractors Tier 3 Compatible for John Deere: 8410 8100 900 8110T 8400 8110 8410T 8200 8210 772D 8310T 8200T 8310 Features and functional notes aftermarket component produced to match original equipment design intent. Factory testing reduces the risk of early failure and improves consistency across units. Intended as a service replacement to restore equipment operation without modification. Fits multiple model years and tiers where noted, reducing the need to confirm multiple part numbers. Typical applications Emergency field during planting or harvest to get a tractor back into service quickly. Scheduled maintenance or component replacement to maintain fleet reliability and performance. Parts stock for dealer or fleet operations to streamline repairs across several tractor models. What to expect A , readytoinstall replacement part with the listed part numbers. Compatibility as specified above; confirm model and tier before ordering to ensure proper fit. No additional modifications required when installed according to equipment service procedures. Note Confirm the part number and tractor model and tier before installation to ensure correct fit and function.