Pay in installments of $16.24 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 1 - Aug 6
For Your Every Summer RSVP, with Code: SUMMER15
Description
NAMURA PISTON KIT SEA DOO PWC +1.00 (77MM)Fits SEA DOO 580 and SEA DOO 587 Piston Size: 77 mm Oversize: +1 mm Why replace your cylinder when you can replace the piston for a fraction of the cost and time? Namura offers direct replacements for the original equipment as well as hi compression and a variety of oversizes to meet your rides needs. They are available in 0. 25mm increments, from the 1 (0. 25mm) through the 8 (2mm) oversize. We also carry B (0. 01mm) and C (0. 02mm) oversizes which
Fits SEA DOO 580 and SEA DOO 587
Piston Size: 77 mm
Oversize: +1 mm
Why replace your cylinder when you can replace the piston for a fraction of the cost and time? Namura offers direct replacements for the original equipment as well as hi-compression and a variety of oversizes to meet your ride’s needs. They are available in 0.25mm increments, from the -1 (0.25mm) through the -8 (2mm) oversize. We also carry B (0.01mm) and C (0.02mm) oversizes which help extend the life of your expensive coated cylinders; a selection of big bore piston kits is available for some applications. Combine this with the MOS2 coating and hard anodizing, Namura gives you a higher performance piston without the higher price.
Namura piston kits come with the piston individually wrapped; a set of OEM quality rings packed in their own box, a wrist pin, and circlips.
MOS2 (Teflon/Molybdenum) Coated Skirts
A rolled-on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction, and helping to eliminate cold seizures.
Machined Smooth Heads
Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%.
Anodized Domes
Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistons.
Hypereutectic Casting Process
Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures.
Piston Size: 77 mm
Oversize: +1 mm
Why replace your cylinder when you can replace the piston for a fraction of the cost and time? Namura offers direct replacements for the original equipment as well as hi-compression and a variety of oversizes to meet your ride’s needs. They are available in 0.25mm increments, from the -1 (0.25mm) through the -8 (2mm) oversize. We also carry B (0.01mm) and C (0.02mm) oversizes which help extend the life of your expensive coated cylinders; a selection of big bore piston kits is available for some applications. Combine this with the MOS2 coating and hard anodizing, Namura gives you a higher performance piston without the higher price.
Namura piston kits come with the piston individually wrapped; a set of OEM quality rings packed in their own box, a wrist pin, and circlips.
MOS2 (Teflon/Molybdenum) Coated Skirts
A rolled-on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction, and helping to eliminate cold seizures.
Machined Smooth Heads
Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%.
Anodized Domes
Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistons.
Hypereutectic Casting Process
Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures.
FITMENT:
Sea-Doo
1996
GTS
77
SP
77
SPI
77
1995
GTS
77
SP
77
SPI
77
1994
GTS
77
SP
77
SPI
77
1993
GTS
77
GTX
77
SP
77
SPI
77
SPX
77
1992
GTS
77
GTX
77
SP
77
XP
77
1991
GT
77
SP
77
1990
GT
77
SP
77
Manufacturer:NAMURA TECHNOLOGIES
Manufacturer Part No.:NW-10000-4
Universal Product Code:758891115715
U / M :EACH
Actual Weight:0.9lbs
Shipping Weight:0.9lbs
Package Dimensions:4” x 4” x 4”
Item Segment:
Marine
Category Details:
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 30 reviews
Sort
Product Reviews
★★★★★ 4
COOFANDY Men's Mock Turtleneck Sweater Long Sleeve review.
This sweater fits well and is good quality for a small price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 13, 2026
★★★★★ 5
Fits nicely.
Nice looking mock turtle neck.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
★★★★★ 5
perfect
Size: X-Large, Color: White
love it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
★★★★★ 1
Neck came frayed/cut
Size: Large, Color: White
Poor quality. The collar/neck area was cut up/frayed. Never had a chance to return this shirt in the allocated amount of time. Guess we have an expensive rag.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
★★★★★ 5
Warm
Very nice and warm for the weather
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 18, 2026