CAT fuel water separator 175-2949 — advanced high-efficiency, compact 185mm x 93mm OEM filter

The CAT 175-2949 is a genuine Caterpillar advanced high-efficiency fuel water separator engineered to trap water and contaminants, protecting your engine’s fuel system.

This fuel/water separator is a factory-authentic CAT replacement part designed for vehicle-specific installations where reliable fuel cleanliness matters. Built to Caterpillar tolerances, it combines a compact footprint with effective filtration to reduce wear on injectors and pumps by removing free water and particulate from diesel fuel before it reaches the engine.

How does the 175-2949 improve fuel system reliability?

The 175-2949 separates and captures free water and particles that shorten fuel-system component life. By preventing moisture and debris from circulating, it helps preserve fuel pump and injector performance and lowers the risk of fuel-related downtime.

• High-efficiency media designed to retain fine particulates and free water
• Genuine CAT manufacturing quality for repeatable performance
• Compact design (185 mm height, 93 mm diameter) fits tight engine bays
• Threaded mounting for secure, leak-resistant installation

What are the key specifications I should know before buying?

Check the physical dimensions and thread size to confirm compatibility with your application. This unit is intended as a vehicle-specific replacement; matching the CAT part number ensures fit and function.

• Part number: CAT 175-2949 (genuine Caterpillar part)
• Height: 185 mm; Diameter: 93 mm for compact mounting
• Thread size: 1 - 14 (verify against your original filter housing)
• Fit type: vehicle specific—cross-check chassis and engine model

How easy is installation and maintenance?

Installation is straightforward when replacing a like-for-like unit: unthread the old separator, transfer any required seals, and screw in the CAT 175-2949 to the specified torque. Routine inspections and scheduled replacement keep filtration performance at design levels and minimize the chance of water-related fuel issues.

• Simple threaded mount for hand and wrench tightening
• Replace at manufacturer-recommended intervals or when contaminated
• Compact size allows access in confined engine compartments
• Use with OEM seals and follow vehicle service manual guidance

Who is this for? The CAT 175-2949 Advanced High Efficiency Fuel Water Separator is intended for technicians, fleet managers, and owners needing an OEM-level replacement filter that ensures dependable fuel cleanliness. It suits those maintaining Caterpillar engines or vehicle models specified for this part number who require a compact, high-efficiency separator that meets factory fit and filtration standards. Choose this genuine CAT component when you want predictable performance, correct dimensions (185 mm height, 93 mm diameter), and proper thread engagement for a secure, leak-resistant install.