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Part #: BT259

Baldwin BT259 Engine Oil Filter

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Reliable Engine Oil Filtration for Heavy Equipment

The Baldwin BT259 engine oil filter is designed to provide dependable filtration for a range of heavy machinery, including Blaw Knox, Caterpillar, Ditch Witch, Dynapac, John Deere, and Rayco equipment. Engineered with a 20 psid by-pass valve and precise dimensions, this filter ensures consistent oil flow and protection under demanding conditions.

  • Contains a 20 psid by-pass valve for controlled oil flow
  • Compatible with Blaw Knox, Caterpillar, Ditch Witch, Dynapac, John Deere, and Rayco machines
  • Height: 5 13/32 inches (137.3 mm)
  • Outside diameter: 3 11/16 inches (93.7 mm)
  • Thread size: 13/16 inch
  • Integral gasket included for secure sealing
  • Replaces John Deere AR58956 and T19044 filters

Technical Details and Specifications

The Baldwin BT259 engine oil filter features a 20 psid by-pass valve that maintains oil circulation even when the filter media is clogged, preventing engine damage. Its height of 5 13/32 inches (137.3 mm) and outside diameter of 3 11/16 inches (93.7 mm) make it suitable for a variety of heavy-duty applications. The 13/16 inch thread size ensures compatibility with specified equipment, while the integral gasket provides a reliable seal to prevent leaks. This filter replaces John Deere AR58956 and T19044, making it a direct fit for maintenance and replacement needs.

Compatible Equipment and Applications

This Baldwin BT259 engine oil filter is compatible with multiple heavy equipment brands and models, including:

  • Blaw Knox construction machinery
  • Caterpillar engines and equipment
  • Ditch Witch underground construction tools
  • Dynapac road construction machines
  • John Deere agricultural and construction equipment
  • Rayco forestry and stump grinding machines

Common Issues Addressed by the BT259 Filter

  • Prevents engine wear caused by contaminated oil
  • Maintains oil pressure with a 20 psid by-pass valve
  • Reduces risk of engine damage from clogged filters
  • Ensures proper sealing to avoid oil leaks
  • Supports extended engine life through effective filtration

Installation Notes and Tips

When installing the Baldwin BT259 engine oil filter, ensure the mounting surface is clean and free of debris. Verify the integral gasket is properly seated to prevent leaks. Tighten the filter according to manufacturer torque specifications to avoid damage to the thread or gasket. Always replace the filter during scheduled maintenance intervals to maintain optimal engine performance.

Quality Assurance and Warranty

Baldwin engine oil filters are manufactured to meet industry standards for filtration efficiency and durability. The BT259 is designed to provide consistent performance in heavy-duty applications. Please refer to Baldwin's official warranty documentation for specific coverage details.

BrandBaldwin
Part NumberBT259
Contains20 psid by-pass valve
Fits"blaw knox, caterpillar, ditch witch, dynapac, john deere, rayco,
Height5 13/32
Height (mm)137.3
Integral Gasket{g401}
Outside Diameter 13 11/16
Outside Diameter 1 (mm)93.7
Per Inch16
Replaces"john deere ar58956, t19044"
Thread13/16

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