1U5718 Pump-Fluid Sampling Fits Caterpillar Models

One New Aftermarket Replacement Fluid Sampling Vacuum Pump for Caterpillar (Cat) Equipment

This aftermarket replacement fluid sampling vacuum pump replaces Caterpillar (Cat) OEM part number 1U-5718. Used as part of the Cat S-O-S (Scheduled Oil Sampling) fluid analysis program, this hand-operated vacuum pump extracts oil, coolant, emulsion, or diesel fuel samples from pressurized systems that are not equipped with dedicated sampling valves. It is a universal service tool used across a wide range of Caterpillar construction, agricultural, and industrial equipment for preventive maintenance and fluid condition monitoring.

Specifications

• Weight: Approximately 0.4 lbs (200 g)
• Dimensions: Approximately 3.15 x 3.15 x 9.84 in
• US Patent No: 4548088
• Application: Engine oil, hydraulic oil, coolant, diesel fuel sampling
• Note: Not suitable for underground/intrinsically safe environments

Compatible Models

Caterpillar (Cat) - Universal Service Tool: Compatible with Caterpillar construction equipment, agricultural equipment, diesel engines, and industrial machinery requiring S-O-S fluid sampling. Use with any Cat machine equipped with a dipstick tube or accessible fluid reservoir on pressurized systems without a sampling valve.

Replaces Part Number(s):

1U5718, 1U-5718

Related item: 5907889

New aftermarket replacement part - not remanufactured, not used.