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High Performance Porsche 9mm Valve Springs and Ti-retainer kit 911/930/964 engines

Marsoni M251S
Sale price$347.48
Pay 4 payments of $86.87 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
High Performance Porsche 9mm Valve Springs and Ti-retainer kit 911/930/964 engines9mm Kit includes Aasco HP109 High Performance Valve springs, HP10T9 Titanium spring retainers and HPSS Spring Seats. These Valve Springs are designed and manufactured to specifically fit the envelope of a Porsche application not a spring from another use.
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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]
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4.8 ★★★★★
Based on 916 reviews
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Verified Purchase
Michael D. Elliott
Charlottesville, US
★★★★★ 5
Good enough
Size: 14/2 AWG-200 FT, Color: White
It works
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
K
Verified Purchase
Kenneth Goff
San Leandro, US
★★★★★ 5
Good product
Size: 50 Feet, Style: 10 AWG
Works good, a little lite to run at distance without dropping a little
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
M
Verified Purchase
Marvin Fenner
San Leandro, US
★★★★★ 5
Good quality
Size: 50 Feet, Style: 10 AWG
Easy to route and connect. Seems like very good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2025
R
Verified Purchase
Richard a lesley
Fort Morgan, US
★★★★★ 5
Our boat
Size: 50 Feet, Style: 10 AWG
A great cable run for our trolling motors
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 25, 2025
S
Verified Purchase
Steve Tofaute
Birmingham, US
★★★★★ 5
Great Stuff
Size: 50 Feet, Style: 10 AWG
Perfect for my boat!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026

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