Radiator 3 Row 19.5 X 19.375 Inch Core Compatible With Case 580K 580Sk Super K Backhoe Loader 660

Case Backhoe Loaders:
• Case 580K — Cummins 4-390 3.9L (239ci) 4-Cyl Diesel — 69-75 HP — 1986-1991
• Case 580K Phase I — Early Production — Shuttle Shift / Outboard Wet Brakes
• Case 580K Phase II — Mid-Production
• Case 580K Phase III — Transaxle / Inboard Wet Brake — ~71 HP
• Case 580SK (Super K) — Cummins 4B/4BT 3.9L Diesel — 70-78 HP — 1989-1994
• 580SK Turbo: Cummins 4BT — Up to 105 HP Turbocharged

Case Trenchers and Industrial Equipment:
• Case 660 — Cummins 4-390 Diesel — Trencher
• Case 760 — Cummins 4-390 Diesel — Trencher
• Case 4390 — Industrial Tractor
• Case 4390T — Industrial Tractor (Turbocharged)

Engine Specifications:
• Cummins 4-390 — 239ci (3.9L) 4-Cyl Diesel — 69-75 HP — Naturally Aspirated
• Cummins 4B — 239ci (3.9L) 4-Cyl Diesel — 53-70 HP — Naturally Aspirated
• Cummins 4BT — 239ci (3.9L) 4-Cyl Turbo Diesel — 78-105 HP
• Bore: 4.02 inch × Stroke: 4.72 inch — Compression Ratio: 18.5:1
• Torque: 185.9 ft-lbs at 1200 RPM

Production Notes:
• Case 580K: 1986-1991 — Three production phases (I, II, III)
• Case 580SK: 1989-1994 — Turbocharged upgrade of 580K
• 580K Phase III introduced transaxle (SN JJG0020000+)
• 580SK replaced 580K as primary model from 1992 forward