Sta-Rite J20-9N Gasket
Sta-Rite specifies the J20-9N gasket for Sta-Rite PL-Series convertible jet pumps at the joint it seals. A pump that weeps at a seam, or that loses prime overnight, often just needs this gasket rather than any deeper repair.
A pump that loses its prime between uses, rather than while running, often has a gasket leak on the suction side letting air in rather than a problem with the impeller or seal. Check this gasket and the o-rings nearby before assuming the pump itself has failed.
Key Features
- Genuine-fit Sta-Rite J20-9N replacement gasket
- Sized for Sta-Rite PL-Series convertible jet pumps
- Seals against water leaks and suction-side air leaks that break the pump's prime
- Should be replaced, not reused, any time the joint is opened for service
- Direct fit replacement for the original Sta-Rite part
Applications
- Sealing a weeping leak at a pump housing joint
- Servicing Sta-Rite PL-Series convertible jet pumps
- Routine reassembly after any pump teardown that opens this joint
- Fixing a lost-prime issue caused by a suction-side air leak
Specifications
- Brand: Sta-Rite
- Manufacturer Part Number: J20-9N
- Part Type: Gasket
- Fits: Sta-Rite PL-Series convertible jet pumps
- Quantity Per Pump: 1
- Condition: New
Frequently Asked Questions
Q: How tight should the bolts be around this gasket?
Torque evenly in a criss-cross pattern to the housing manufacturer's spec rather than over-tightening, which can crack the housing without improving the seal.
Q: Can I reuse the old gasket if it still looks fine?
It is not recommended. A gasket takes a permanent compression set the first time it is torqued down, so a reused gasket is far more likely to weep than a new one, even if it looks undamaged.
Q: My pump loses its prime overnight. Could this gasket be the cause?
Yes, a gasket leak on the suction side lets air into the pump between uses even though it may not drip visibly while the pump is running. It is one of the first things worth checking for a lost-prime complaint.
Q: Do I need any sealant with this gasket?
No. Sta-Rite gaskets in this class are designed to seal on their own when properly torqued; adding sealant is not necessary and can make future disassembly harder.
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 gasket.
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