SKU: 95569744176

Supertech Valve Spring & Retainer Kit - Mitsubishi 4G63 EVO

Sale price$270.85 Regular price$300.94
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

Supertech Valve Spring & Retainer Kit - Mitsubishi 4G63 EVOSupertech now offers a performance dual & single valve spring and retainer kits for the Mitsubishi 4G63 EVO engine. Supertech Single Dual 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

Supertech now offers a performance dual & single valve spring and retainer kits for the Mitsubishi 4G63 EVO engine.

Supertech Single/Dual 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.

Supertech Viton Valve Seals
Supertech Viton valve stem seals are reduced outer diameter valve seals, perfect for those that are using dual valve springs that may otherwise have valve spring clearance issues. Also a performance option for those that just need to install new valve stem seals due to worn existing seals. 


Valve spring & retainer kit specs and contents:

32pc dual valve springs / 16pc titanium retainers / 16pc steel spring seats / 8pc exhaust valve seals

  • Dual spring seat pressure: approx. 96lbs @ 39.6mm 
  • Spring coil bind: 24.7mm
  • Max net lift: 14.90mm
  • Kit: SPRK-M1007D
Vehicle / engine application: Mitsubishi 4G63 EVO
      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: 95569744176

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      4.3 ★★★★★
      Based on 627 reviews
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      Verified Purchase
      Ken Antunes
      Lowell, US
      ★★★★★ 5
      Easy install and looks good
      Exactly as expected. Easy to install and look great.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on May 6, 2026
      L
      Verified Purchase
      LORI KREBS
      Pawtucket, US
      ★★★★★ 5
      Extremely satisfied
      Size: 24x5.8, Color: Black, Size: 24x5.8, Color: Black
      Very nice. I am extremely happy with them. I used painters tape to hold the bracket in place while I screwed it in, worked like a charm 😁 holds a lot of items
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on April 11, 2026
      J
      Verified Purchase
      Jesse Slater
      Alexandria, US
      ★★★★★ 3
      Good enough
      Size: 15x6.8, Color: Black
      As cheap as the day is long but functional. These are basically made out of highly compressed paper and finished to feel like wood. The first one I put up was good with a little tilt to the back which is fine. The second one has a more severe tilt and I had to bend the bracket down to decently level it out. They are sturdy enough to hold quite a bit of weight and look good for what they are. I'm not impressed but I'm also not disappointed, the price is a bit steep for what they are but they serve their purpose.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on November 15, 2025
      S
      Verified Purchase
      Satz
      Boise, US
      ★★★★★ 4
      Great, but bring your own inserts.
      Size: 24x7.9, Color: Black
      These work great, easy to install. Happy with them. Only problem was the instructions say don’t use the include inserts on wallboard, which meant I had to go out and purchase my own. That’s OK, because I like to use inserts I trust.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on December 9, 2025
      L
      Verified Purchase
      Linda Gill
      Birmingham, US
      ★★★★★ 5
      Sturdy and attractive
      Size: 15x6.8, Color: Black, Size: 15x6.8, Color: Black
      Love the shelves, great quality and design. They are very sturdy and perfect for my need. I ordered wine glass holders from Amazon and attached them to the shelves. Impressed and amazed at the look.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on November 18, 2025

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