SKU: 62725312408

Skunk2 Ultra Series Valves - K-Series

Sale price$211.87 Regular price$235.41
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

Skunk2 Ultra Series Valves - K-SeriesSkunk2 Ultra Series Valves for the Honda K20 and K24 are Skunk2's premium line of valves; manufactured from HNV 3 martensitic steel (IN) and EV8 austenitic steel (EX) one piece forgings. The characteristics of the austenitic nickel based alloy enable high resistance to oxidation and corrosion and are designed for engines that output extremely high temperatures. Ultra Series valves are heat treated using a proprietary process for extraordinary strength

Skunk2 Ultra Series Valves for the Honda K20 and K24 are Skunk2's premium line of valves; manufactured from HNV-3 martensitic steel (IN) and EV8 austenitic steel (EX) one-piece forgings. The characteristics of the austenitic nickel based alloy enable high resistance to oxidation and corrosion and are designed for engines that output extremely high temperatures. Ultra Series valves are heat-treated using a proprietary process for extraordinary strength and durability and Chromium Nitride coated using the physical vapor deposition (PVD) process. This coating significantly improves wear and heat resistance, creating conditions for more durability and long term usage. Chromium Nitride coating is a remarkable solution as it improves the friction coefficient between the valve’s stem and valve guide; a necessity for engine components that demand resistance to high heat level environments.

Other valves may appear similar, but only Ultra Series Valves feature specially designed valve head profiles to optimize airflow. Skunk2 designs, develops, and tests its entire valvetrain lineup in-house to ensure superior quality and maximum performance gains. Skunk2 valvetrain components provide exceptional performance, reliability, and quality and are standard-issue on each Skunk2 vehicle that we build and support.

FEATURES:

  • Overall Valve Length (Intake/Exhaust): 109mm/ 108.6mm
  • Head Diameter (Intake/Exhaust): 35.00mm/ 30.00mm
  • Stem Thickness (Intake/Exhaust): 5.48mm/ 5.45mm
  • One-Piece Forged
  • Stainless-Steel Alloy Construction
  • Std. Intake/ Std. Exhaust - Flat Head - Hi Comp
  • 3-10g Lighter Than Stock
  • Proprietary Heat Treatment
  • Chromium Nitride Coating
  • Optimum Sealing, Airflow, And Stability
  • K20A/K20/K24A/K24Z 
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: 62725312408

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Samuel James
Houston, US
★★★★★ 5
It’s Mobile One. The Brand Says it All!
Size: 5 Quart (Pack of 2), Style: Full Synthetic, Configuration: 0W-40
I buy Mobil One 0W-40 Full Synthetic European Blend Motor oil for my three older, higher mileage Mercedes SUVs. Considering all the vehicles are running well to this day speaks to the quality of their ongoing maintenance and Mobil One lubricants have always been part of their routine. Mobil One long ago became the favored brand of both European luxury car manufacturers and their customers. I’m no exception. The product comes in a convenient handled bottle that’s easy to pour without drips or spills. It’s built in fluid level gauge provides you with a real time window into the quantity of oil you pour and quantity remaining in its container. The oil is an excellent lubricant and it’s great for my motor, too. Price wise, it’s a premium offering from a premium brand. Even so, it’s worth every penny for helping keep my vehicles running as they were engineered. I have no complaints with Mobile One and I don’t have a reason to change. I’ll keep buying it until something better comes along.
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Reviewed in the United States on May 22, 2026
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TEX
Louisville, US
★★★★★ 5
Perfect for MB
Size: 5 Quart (Pack of 2), Style: Full Synthetic, Configuration: 0W-40
Mercedes certified - this oil is very nice, no need to drop loads on oil from MB or the other pricier brands, this stuff works very well.
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Reviewed in the United States on May 21, 2026
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Good
Louisville, US
★★★★★ 5
Great Product and price.
Size: 5 Quart, Style: Full Synthetic, Configuration: 0W-40
Great product and price.
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Reviewed in the United States on May 14, 2026
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Julie A.
Dallas, US
★★★★★ 5
Works great never had a problem
Size: 5 Quart, Style: Full Synthetic, Configuration: 0W-40
I've been using this mobile one in my 2005 Mercedes kompressor C230 w203 1.8 engine for about 18 years and never had a problem so I will continue to use it. The price was very good compared to other places but I did have to order one extra quart, I don't know why they don't make this mobile one in a six quart jug.
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Reviewed in the United States on May 1, 2026
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rpeters
New York, US
★★★★★ 5
Great for my hot rod!
Size: 5 Quart, Style: Full Synthetic, Configuration: 0W-40
Perfect oil for my hot rod! Add a bottle of zinc and you get great low temp flow as well as good heat protection. As a 0W it flows quickly for good start up protection and the 40W means I get good protection as temps rise. My car has a flat tappet hydraulic cam so I add a bottle of zinc. Has worked great!
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Reviewed in the United States on March 19, 2026

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