Sea-Doo 140mm Neoprene Pump Gasket (SKU: SD-140-GK)
Sea-Doo 140mm Neoprene Pump Gasket (SKU: SD-140-GK)
Specifications
Specifications
Sea-Doo 140mm Neoprene Pump Gasket | Pump Seal Gasket (SKU: SD-140-GK)
The Sea-Doo 140mm Neoprene Pump Gasket is a genuine-style replacement seal designed for Sea-Doo personal watercraft equipped with 140mm jet pumps. Manufactured from durable neoprene rubber, this gasket creates an airtight seal between the jet pump and hull, helping prevent air intrusion that can cause cavitation, poor acceleration, and loss of performance.
Featuring a convenient adhesive backing, the gasket installs directly to the hull surface before pump installation, creating a reliable seal at the front of the wear ring. This design eliminates the need to apply silicone sealant around the wear ring area on many older Sea-Doo models, simplifying installation while helping maintain maximum pump efficiency.
A damaged, worn, or missing pump gasket can allow air to enter the pump system, resulting in cavitation, reduced hook-up, poor hole shot, and decreased overall performance. Replacing the gasket during pump service, wear ring replacement, or pump rebuilds helps ensure optimal pump operation.
Features
The Sea-Doo 140mm pump gasket is constructed from durable neoprene rubber and features a self-adhesive backing for easy installation. Designed to seal the pump to the hull and eliminate air leaks around the wear ring area.
Benefits
Helps prevent cavitation, improves pump efficiency, restores acceleration, enhances hook-up, and eliminates the need for silicone sealing around the wear ring area on many older Sea-Doo applications.
Common Applications
- Sea-Doo 580 Models
- Sea-Doo 650 Models
- Sea-Doo 720 Models
- Sea-Doo 800 Models
- Sea-Doo Watercraft Equipped with 140mm Pumps
- Pump Rebuilds
- Wear Ring Replacement
- Jet Pump Service
Installation Notes
The adhesive-backed gasket installs directly to the hull before pump installation. While the gasket seals the wear ring area, silicone sealant should still be applied around the bailer tubes as required by Sea-Doo service procedures.
Why Replace Your Pump Gasket?
A properly sealed pump is critical for maximum performance. Replacing a worn gasket helps eliminate air leaks, reduce cavitation, improve acceleration, and maintain peak jet pump efficiency.
Part Number
SD-140-GK
Model Years
Model Years
- 1988
- 1989
- 1990
- 1991
- 1992
- 1994
- 1995
- 1996
- 2000
- 2001
- 2002
- 2003
- 1993
- 1997
- 1998
- 1999
Engine
Engine
580|650|720|785|800

FAQs
See All
How do I change the impeller in my craft?
Impros has complete impeller installation instructions for Yamaha, Sea-Doo, Kawasaki and Polaris PWC. See Impeller Installation instructions for the person that likes to get in there and do things themselves.
Does Impros balance each impeller they service?
Yes. Each and every impeller that we service is checked for accurate balance within 2/10ths of a gram. Slight rock damage and especially with impellers requiring weld, checking the balance is absolutely required with PWC impellers. Sometimes we’ll find new impellers out of balance right out of the box. We balance each impeller as the finish is applied, eliminating any chance of throwing it out of balance during the polishing process. These measures are proudly taken to insure our customers the highest quality impeller repair available. Ask our competition if and how they balance impellers, we’ve found that they typically rely on the original factory balance.
Does Impros use correct pitching techniques specific to each brand of impeller?
Yes, Impros is proud of our ability to pitch each brand impeller to the manufacture’s specific range of blade angle variation. Impros has a master gauge for every stainless-steel impeller made, assuring an accurate pitch and uncompromised performance, eliminating common guesswork. Each and every manufacturer builds the impeller geometrically different from one another and gauges the outer blade angle in a different way. Only a company with experience will accurately understand, manipulate and repair the blades of the impeller to its original state.
Customer Reviews
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The best there is!! If you want true personalized impeller and/or pump service this is it. One word describes it all: Quality."
Tim C.Verified Customer -
"Big thank you to Glen for the quick turnaround, outstanding customer service, and honesty. I ended up choosing the race finish and couldn't be happier with the final result!"
C. KunamayVerified Customer -
"Solid support when I had an issue. Immediately fixed. Wish all businesses operated like this, thanks!"
John H.Verified Customer
Sea-Doo 140mm Neoprene Pump Gasket (SKU: SD-140-GK)
Sea-Doo 140mm Neoprene Pump Gasket | Pump Seal Gasket (SKU: SD-140-GK)
The Sea-Doo 140mm Neoprene Pump Gasket is a genuine-style replacement seal designed for Sea-Doo personal watercraft equipped with 140mm jet pumps. Manufactured from durable neoprene rubber, this gasket creates an airtight seal between the jet pump and hull, helping prevent air intrusion that can cause cavitation, poor acceleration, and loss of performance.
Featuring a convenient adhesive backing, the gasket installs directly to the hull surface before pump installation, creating a reliable seal at the front of the wear ring. This design eliminates the need to apply silicone sealant around the wear ring area on many older Sea-Doo models, simplifying installation while helping maintain maximum pump efficiency.
A damaged, worn, or missing pump gasket can allow air to enter the pump system, resulting in cavitation, reduced hook-up, poor hole shot, and decreased overall performance. Replacing the gasket during pump service, wear ring replacement, or pump rebuilds helps ensure optimal pump operation.
Features
The Sea-Doo 140mm pump gasket is constructed from durable neoprene rubber and features a self-adhesive backing for easy installation. Designed to seal the pump to the hull and eliminate air leaks around the wear ring area.
Benefits
Helps prevent cavitation, improves pump efficiency, restores acceleration, enhances hook-up, and eliminates the need for silicone sealing around the wear ring area on many older Sea-Doo applications.
Common Applications
- Sea-Doo 580 Models
- Sea-Doo 650 Models
- Sea-Doo 720 Models
- Sea-Doo 800 Models
- Sea-Doo Watercraft Equipped with 140mm Pumps
- Pump Rebuilds
- Wear Ring Replacement
- Jet Pump Service
Installation Notes
The adhesive-backed gasket installs directly to the hull before pump installation. While the gasket seals the wear ring area, silicone sealant should still be applied around the bailer tubes as required by Sea-Doo service procedures.
Why Replace Your Pump Gasket?
A properly sealed pump is critical for maximum performance. Replacing a worn gasket helps eliminate air leaks, reduce cavitation, improve acceleration, and maintain peak jet pump efficiency.
Part Number
SD-140-GK