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This is the Cummins Doser Pump, part number 5506957RX, listed in our Engine Parts category. A doser pump is a pump that delivers a controlled amount of fluid into a system. Order by the exact part number, because similar-looking pumps can differ and the wrong one will not do the job.
| Brand | Cummins |
|---|---|
| Part number | 5506957RX |
| Store SKU | 9690321 |
| Part type | Doser Pump |
| Category | Engine Parts |
Machine models are not listed on this page. Check the part number against the machine's parts book, or send the model and serial number through the quote form so the parts team can confirm fitment before you order.
Match part number 5506957RX to the number in the machine's parts book or on the pump you are replacing. If you cannot find a number or the numbers differ, send the machine model and serial number through the quote form and the parts team will check it for you.
In general, a doser pump moves a controlled amount of fluid into a system. The exact fluid and how it is used depend on the machine, so refer to the parts book and service manual for your application.
Common signs include fluid leaking around the pump, unusual noise from the pump, fault codes related to dosing, and the system not delivering fluid as expected. These symptoms can have other causes, so follow the machine's service manual when diagnosing.
Have the part number (5506957RX), the machine model and serial number, and the quantity you need. If you are replacing an existing pump, the number from the old part is the most reliable reference.
No. The store SKU (9690321) is our internal reference. The Cummins part number is 5506957RX, and that is the number to use when checking a parts book or confirming fitment.
