Crankshaft Front Seal for Case 188 & 207 Diesel Engines – A39110

Front crankshaft oil seal for Case 188 (G188D) and 207 (D207) 4-cylinder diesel engines, used across a wide range of Case crawler dozers, backhoes, skid steers, forklifts, and wheel loaders.

Fits Models At A Glance:

• Case Engines: 188 (G188D), 207 (D207) 4-Cylinder Diesel
• Case Crawler Dozers: 310G, 350, 350B, 450, 450B, 450C, 455B, 455C, 550, 550E, 550G, 550H, 650, 650G, 850D, 850E, 850G, 855D, 855E
• Case Loader Backhoes: 480B, 480C, 480D, 480LL, 580, 580B, 580C, 580D, 580SD
• Case Uni-Loader Skid Steers: 1700-Series, 1835, 1835B, 1845, 1845B, 1845S
• Case Forklifts: 584C, 584D, 585C, 585D, 586C, 586D
• Case Wheel Loaders: W11
• Case Trenchers: DH5

Key Notes:

• Part Number: A39110
• Weight: 0.60 lbs (0.27 kg)
• Inner Diameter: 2-1/8 in (54 mm)
• Outer Diameter: 3 in (76.33 mm)
• Thickness: 3/8 in (9.09 mm)
• Type: Front crankshaft oil seal
• Engine Application: Seals the front of the crankshaft at the timing cover on the Case 188 and 207 4-cylinder diesel engines, preventing oil leakage at the crank snout
• Note: If the crankshaft seal surface is worn, a seal wear ring repair kit (A155893) may be required

Common Use Case or Symptoms:
Use when oil is leaking from the front of the engine at the crankshaft pulley, the timing cover area is wet with oil, or during a front cover or timing gear service — a hardened or worn front seal allows oil loss at the crank snout.

Why Choose Broken Tractor:
✅ Correct OEM Dimensions for the 188 & 207 Diesel — 54 mm ID × 76.33 mm OD × 9.09 mm for a precise, leak-free fit at the crank snout
✅ Fits a Wide Range of Case Machines — one seal covers dozers, backhoes, skid steers, forklifts, and trenchers running the 188/207 diesel
✅ Fast Shipping from a U.S.-Based Team — in-stock and ready to ship from our U.S. warehouses