SKU: 53332875328

Supertech Single Valve Spring Kit - Honda Civic Type-R FK8 K20C1

Sale price$295.36 Regular price$328.18
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Ships within 48 hours · Estimated delivery Sep 12 - Sep 17

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Description

Supertech Single Valve Spring Kit - Honda Civic Type-R FK8 K20C1Supertech now offers a performance single valve spring, retainer, and spring seat kit for the Honda Civic Type R (FK8) K20C1 engine application. Supertech Single Valve Springs: Supertech performance valve springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability. Computer designed to ensure that wire stress levels do not overpass the limits for long durability under extreme conditions and

Supertech now offers a performance single valve spring, retainer, and spring seat kit for the Honda Civic Type-R (FK8) K20C1 engine application.

Supertech Single Valve Springs:
Supertech performance valve springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability. Computer designed to ensure that wire stress levels do not overpass the limits for long durability under extreme conditions and harmonics are well under control.

Supertech Titanium Retainers
Supertech titanium retainers prevent valve float and strength up your valvetrain. Retainers are CNC machined from 6AL4V grade titanium.

Supertech Spring Seat Locater
Supertech spring seats are made from high grade steel and aide in the upgrading to dual valve springs. Thickness of spring seats may vary.


Valve spring & retainer kit specs:

K20C1 - 16pc single valve springs / 16pc titanium retainers / 16pc steel spring seats

  • Open Pressure: 176 @ 10
  • Max Lift: 13.80mm
  • Coil Bind: 27.30mm
  • Rate: 9,9
  • Kit spring: SPR-H1003S
  • Kit spring qty: 16
  • Retainer: RET-1003-C
  • Retainer qty: 16
  • Seat Locator: SEAT-1003-CI + SEAT-1003-CE
  • Seat Locator qty: 16
  • Seat Pressure: 77 @ 40.60
  • InnSpr.ID: Single
  • OutSpr.ID: 16.30mm
  • OutSpr.OD: 23.70mm
  • InnSpr.OD: Single
Vehicle application: 17+ Honda Civic Type-R FK8 - K20C1

*Images used for representational purposes only
    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: 53332875328

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    Ryan
    Dallas, US
    ★★★★★ 5
    Durable Solenoid for Starter and Trim
    Number of Items: 1
    Installed easily and works perfectly. Engages the trim and starter reliably every time. Solid, durable, and great value.
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    Reviewed in the United States on December 9, 2025
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    Cuz
    West Palm Beach, US
    ★★★★★ 5
    Works Great
    Number of Items: 1
    I have a 1988 mercury/mariner 75 hp motor. My motor would not go down. Purchased this solenoid to replace the old one. Fit perfect and fixed my problem
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    Reviewed in the United States on October 30, 2025
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    Gary Miller
    Bozeman, US
    ★★★★★ 5
    Just the part I needed
    Number of Items: 1
    It was a perfect match to the one I needed to replace. And the shipping was lightning fast
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    Reviewed in the United States on April 7, 2026
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    steven clark
    San Leandro, US
    ★★★★★ 5
    Works great
    Number of Items: 1
    Works great easy fix for my Merc. Trim motor
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    Reviewed in the United States on September 3, 2025
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    Lori
    Grantham, US
    ★★★★★ 5
    Worked well
    Number of Items: 1
    Worked well for the money
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    Reviewed in the United States on December 27, 2025

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