Cat Pumps Pressure Washer Pump Cap
Protect your CAT pressure washer pump's internal components and maintain proper oil levels with a new CAT pressure washer pump cap. This essential cap prevents contaminants from entering the pump and helps regulate pressure. A properly sealed cap is vital for optimal performance and longevity. Browse our wide range of CAT pressure washer pump parts for any repairs, or consider a full CAT pressure washer pump rebuild kit. Don't forget to check our selection of CAT pump water inlet components for complete maintenance.
The median price is currently $149.99 — about 50% higher than 32 days ago.
Our top picks: Cat Pumps Pressure Washer Pump Cap
Selected automatically from marketplace relevance and prices of 12 listed offers.
- Top matchCat Pump Pressure Washer 547961 Oil Filler Replacement Cap 4DNX ,3DX, 3SP Pumps.
This is a replacement oil filler cap, MPN 547961, from CAT Pumps designed for 4DNX, 3DX, and 3SP pressure washer pumps.
Budget pickCat Pump Pressure Washer 547961 Oil Filler Replacement Cap 2SF, 3DX, 3SP PumpsThis Cat Pump Pressure Washer 547961 Oil Filler Replacement Cap is designed for 2SF, 3DX, and 3SP pumps.
Premium pickPressure Washer Oil Pump Cap Replacement for Cat 46798 with O-Ring RedThis is a red pressure washer oil pump cap, designed as a replacement for Cat 46798 pumps and includes an O-ring for a secure twist-on closure.
Top 5: Cat Pumps Pressure Washer Pump Cap compared
| # | Product | Price | Rating | Model | Strength |
|---|---|---|---|---|---|
| 1 | Cat Pump Pressure Washer 547961 Oil Filler Replacement Cap 4DNX ,3DX, 3SP Pumps. | $17.79 | — | Oil Filler Cap | OEM CAT Pumps part |
| 2 | Cat Pump Pressure Washer 547961 Oil Filler Replacement Cap 2SF, 3DX, 3SP Pumps | $17.78 | — | Oil Filler Cap | Genuine Cat Pumps brand |
| 3 |  514009761 547961 Oil Fill Cap with O-Ring Seal for Cat Pumps Pressure Washer | $22.99 | — | — | — |
| 4 |  Cat Pump 45690 Pressure Washer Oil Filler Cap for 2SF and 4SF Pumps | $20.50 | — | 3735 | Genuine Cat Pumps brand |
| 5 |  Cat Pump Pressure Washer 43211 Oil Filler Replacement Cap For 310,51,55,56,57,58 | $11.99 | — | Cat 43211 | OEM Cat Pumps part |
- Cat Pump Pressure Washer 547961 Oil Filler Replacement Cap 4DNX ,3DX, 3SP Pumps.
- Cat Pump Pressure Washer 547961 Oil Filler Replacement Cap 2SF, 3DX, 3SP Pumps
- 514009761 547961 Oil Fill Cap with O-Ring Seal for Cat Pumps Pressure Washer
- Cat Pump 45690 Pressure Washer Oil Filler Cap for 2SF and 4SF Pumps
- Cat Pump Pressure Washer 43211 Oil Filler Replacement Cap For 310,51,55,56,57,58
- Pressure Washer Oil Pump Cap Replacement for Cat 46798 with O-Ring Red
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Oil Fill Cap Replacement with O-Ring Seal for Cat Pumps Pressure Washer Models -
Annovi Reverberi 1" Shaft 4000 PSI PRESSURE WASHER PUMP for Cat Pumps 66DX30G1I -
Pressure Washer Oil Pump Cap 46798 Cat Oil Fill Cap ORing #14179 4HP 5DX -
547961 Side Vented Oil Cap for CAT Pressure Washer Pumps 2SF 2DX 3DX 3SP 3GXT30 -
For Cat Pumps 2SF 2DX 3DX 3SP Pressure Washer Replacement Cap 514009761 547961 -
Oil Fill Replacement Cap 514009761 547961 with O-Ring Seal Replace for Cat Pumps
FAQ: Cat Pumps Pressure Washer Pump Cap
What price range does Cat Pumps Pressure Washer Pump Cap fall into?
The current span runs from $11.99 to $349.99 across 12 offers with a listed price; the midpoint is $21.99 (as of September 2026).
Which criteria help when comparing Cat Pumps Pressure Washer Pump Cap?
When comparing, it pays to look at Pressure (PSI), Flow Rate (GPM), Color, Unit System and Connector Type — the listings here can be filtered by exactly these criteria.