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OEM Replacement Pump Seal Kit for USJ 4018 / 4014
This OEM replacement seal kit includes the seals located behind both manifold heads on the USJ 4018 and USJ 4014 pump assemblies. It is typically used when the pump is showing signs of seal failure rather than as a routine preventative maintenance item.
Common Signs This Kit May Be Needed
- Water leaking behind either of the two manifold heads
- Water leaking into the crankcase, causing the pump oil level to appear higher than normal
- Pump cavitation
If your pump is cavitating, first inspect the water filter and confirm it is clean before determining that the seals are the cause.
Service Interval Guidance
This seal kit is often needed around the 800 to 1000 hour range, but only if the pump is showing one or more of the symptoms listed above. This kit is not intended to be used as a standard preventative maintenance item.
What This Kit Is For
This kit is intended to service the seals behind both manifolds on the pump. It is designed for repair situations where leakage or related pump performance issues indicate that the existing seals have failed.
Installation
Installation is recommended for experienced technicians familiar with high-pressure water pump repair. If you are unsure whether this kit is needed or do not have experience servicing these pumps, we recommend having the pump inspected before replacement.