Onan 131-0219 Water Pump Slinger
Fitted on the shaft between the seal and the bearing, the Onan 131-0219 Water Pump Slinger is a last line of defense for the bearing housing. Water that gets past the shaft seal is spun off the slinger and drains away through the weep path rather than working its way into the grease.
Because the slinger only matters once the seal is already passing a little water, a failed slinger usually turns up as bearing damage rather than as a fault of its own. Fit a new one with every seal and bearing change so the drain path is working before it is needed. This part is listed for Onan water pump 131-0257 (casting 170-3172) on MCCK 4.0 and 6.5 kW and MDJE 7.5 kW generator sets.
Key Features
- Sized to the Onan pump shaft diameter
- Throws seepage clear of the bearing housing
- Works with the pump drain path to shed water overboard
- Fitted during any seal or bearing service
- Inexpensive protection for the bearings and shaft
Applications
- Raw water pump rebuilds on Onan marine generator sets
- Service alongside a new shaft seal and bearings
- Restoring the drain path after a seal leak
- Preventive replacement during a full pump overhaul
Specifications
- Brand: Onan
- Manufacturer Part Number: 131-0219
- Part Type: Slinger
- Fits: Onan water pump 131-0257 (casting 170-3172) on MCCK 4.0 and 6.5 kW and MDJE 7.5 kW generator sets
- Quantity Per Pump: 1
- Condition: New
- Shipping Weight: 0.1 lb
Frequently Asked Questions
Q: How do I know if the old slinger is bad?
Look for cracks at the bore, hardening, distortion, or a slinger that turns freely on the shaft instead of gripping it.
Q: Should it be lubricated on assembly?
A little soapy water helps it slide onto the shaft without stretching or tearing the bore.
Q: Does the slinger go on a particular way round?
Yes, match the orientation of the old part so the water is thrown toward the drain rather than inboard.
Q: Can I leave it out if the seal is new?
No. The seal will eventually seep, and the slinger is what buys you time when it does.
Not sure this is the right part? Send us a Picture of the Pump Plate on your pump and the CLR Marine team will confirm the correct slinger.
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