SKU: 85652714881

Supertech Performance SPRK-H1022D-VE Dual Valve Spring 123 @ 37.5 SPR-H1022D-VE + RET-NSR20/T1 + Fact Seat (to increase net lift it is necessary to machine inner spring boss)

Sale price$223.91 Regular price$248.79
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 31 - Sep 5

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Description

Supertech Performance SPRK-H1022D-VE Dual Valve Spring 123 @ 37.5 SPR-H1022D-VE + RET-NSR20/T1 + Fact Seat (to increase net lift it is necessary to machine inner spring boss)Supertech Performance SPRK H1022D VE Dual Valve Spring 123 @ 37. 5 SPR H1022D VE + RET NSR20 T1 + Fact Seat (to increase net lift it is necessary to machine inner spring boss) Supertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium

Supertech Performance SPRK-H1022D-VE Dual Valve Spring 123 @ 37.5 SPR-H1022D-VE + RET-NSR20/T1 + Fact Seat (to increase net lift it is necessary to machine inner spring boss)

Supertech valve springs are computer designed to ensure smooth harmonics under high RPM and load. The stress levels are kept under control and fatigue is reduced for long durability under extreme conditions. These springs are made of premium Superclean Chrome Silicon Vanadium steel alloy, which is a tough alloy that was designed for higher performance and durability at high RPM's and memory retention.

Specifications:

  • Outer Spring O.D.: 30.00mm
  • Outer Spring I.D.: 21.80mm
  • Inner Spring O.D.: 20.50mm
  • Inner Spring I.D.: 15.50mm
  • Seat: 130 @ 37.3 (lbs@mm)
  • Open (lift): 266 @ 10 (lbs@mm)
  • Max net lift: 11.50mm
  • Coil bind: 19.50mm
  • Rate: 11.20 lbs/mm

Retainer P/N: RET-NSR20/T1 (16) + OEM SEAT (To increase Net Lift it is necessary to machine inner spring boss)

Note: This is for a complete set of dual intake and exhaust valve springs. Retainers and spring seats are included if they are part of the kit.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 85652714881

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427Cobra
Alexandria, US
★★★★★ 3
OK for light duty use only
Style: 9" 2T Cutting Blade
Not very strong or robust. Does fit my power head properly. Only recommend it for occasional, light duty use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2025
A
Verified Purchase
Alexander Vieths
Draper, US
★★★★★ 5
These work for the Worx trimmer WG928
Size: 16 Line Spools+4 Caps, Size: 16 Line Spools+4 Caps
Recently purchased the Work String trimmer and blower bundle. I found these and ordered them in hopes they were the right ones. They fit and work perfectly. Super easy to install. Pop out the old one and pop in the new. The string is pretty durable and thick. I love the idea of pre loaded spools. It got so annoying having to rewind the string on the spool every time I ran out. Price is fair and worth it. Highly recommend these if you have the same trimmer.
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Reviewed in the United States on September 2, 2024
B
Verified Purchase
brian
Whiting, US
★★★★★ 5
Worth taking the worry off my list.
Size: 16 Line Spools+4 Caps
Great to last forever and not pay over priced smaller packages.
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Reviewed in the United States on March 1, 2026
C
Verified Purchase
christina castillo
Pawtucket, US
★★★★★ 5
GREAT PRODUCT!
Size: 16 Line Spools+4 Caps
GREAT PRODUCT!
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Reviewed in the United States on May 24, 2026
A
Verified Purchase
Amazon Customer
Fort Morgan, US
★★★★★ 4
Good
Size: 20 Line Spools+4 Caps
Great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026

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