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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
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Description
Supertech Ford/Mazda Duratec Single Valve Spring Kit - 55lbs at 35mmUpgrade your engine's performance with the Supertech Ford Mazda Duratec Single Valve Spring Kit, designed to provide reliable and consistent valve control. Engineered for durability and high efficiency, this kit features a 55lbs spring pressure at 35mm, offering the perfect balance of strength and precision for your tuning needs. The kit is specifically built for Ford and Mazda Duratec engines, ensuring a precise fit and enhanced engine response.
Upgrade your engine's performance with the Supertech Ford Mazda Duratec Single Valve Spring Kit, designed to provide reliable and consistent valve control. Engineered for durability and high efficiency, this kit features a 55lbs spring pressure at 35mm, offering the perfect balance of strength and precision for your tuning needs.The kit is specifically built for Ford and Mazda Duratec engines, ensuring a precise fit and enhanced engine response. Whether you're building a high-performance street car or a motorsport project, these valve springs deliver the quality and endurance necessary to handle demanding conditions.
Manufactured by Supertech, a respected name in performance engine components, this kit is ideal for enthusiasts looking to improve valve stability and prevent valve float at high RPMs.
Its robust design helps maintain optimal valve timing and engine efficiency, contributing to better power output and longer engine life. Trust the Supertech Single Valve Spring Kit to keep your Duratec engine performing at its peak.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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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]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
👍
Size: 1-pack
Good travel size. Works well.
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Reviewed in the United States on August 24, 2025
★★★★★ 5
well made
Size: 1-pack
great for weak shoulder to get it way out there
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Reviewed in the United States on January 6, 2025
★★★★★ 5
Favorite balls
Color: Multicolor, Size: 6 PACK
I never thought that my black lab mix could enjoy a ball more than the slightly larger silicon (sp) ones we have used for years. The sound has her ears up from the moment I pick one up. Please not, these are not indestructible. Throwing them away once they break open (for heavy chewers) is best.
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Dog loves these
Color: Multicolor, Size: 6 PACK
Perfect balls for dogs who chew the squeaker out. These have the felt going over the plastic squeaker piece. Super bright colors and perfect size for medium and small dogs.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
So far so good!
Color: Multicolor, Size: 24 PACK
So far so good! Our Belgian Malinois/Black Lab mix goes through other brands of squeaky tennis balls in a matter of days. Including the ones that cost 2.00 a piece. Thrilled to see that the first one is still intact after a couple of weeks of play. She must squeak them if they are in her mouth so they do get quite a workout. I would highly recommend them.
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Reviewed in the United States on April 21, 2026