350 - 8.7 Tier 4A 380 - 12.9 385 - 12.9 400 - 12.9 Tier 4A 435 - 12.9 450 - 12.9 Tier 4A 450 12.9 Quadtrac Tier 4A 485 - 12.9 500 - 12.9 - Quadtrac Tier 4A 500 - 12.9 Tier 4A 540 - 12.9 - Quadtrac - 543hp - Tier 4B 580 - 12.9 - Quadtrac - 589hp - Tier 4B 620 - 12.9 - Quadtrac - 628hp - Tier 4B