SKU: 30673266694

Smeding Diesel 104# Heavy Duty Valve Springs 98.5-18 Dodge 5.9L/6.7L Cummins

Sale price$198.00 Regular price$220.00
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Description

Smeding Diesel 104# Heavy Duty Valve Springs 98.5-18 Dodge 5.9L/6.7L CumminsUpgrading to higher pressure rated valve springs is crucial for anyone enhancing the performance and reliability of Cummins engines. These engines often operate under conditions of increased boost pressure and higher RPMs, necessitating stronger valve springs to maintain precise valve control. By installing heavier valve springs, you can effectively mitigate the risks of valve float, a phenomenon where the valves fail to properly close due to

Upgrading to higher pressure rated valve springs is crucial for anyone enhancing the performance and reliability of Cummins engines. These engines often operate under conditions of increased boost pressure and higher RPMs, necessitating stronger valve springs to maintain precise valve control. By installing heavier valve springs, you can effectively mitigate the risks of valve float, a phenomenon where the valves fail to properly close due to inadequate spring tension, potentially leading to engine damage. Thanks to Smeding Diesel's Heavy Duty 24V 104# springs, you can eliminate that possible issue. 

Performance-enhanced engines, particularly those running at boost pressures of 50 PSI or greater, demand the resilience and durability offered by heavier valve springs. These upgraded springs provide the necessary tension to keep the valves closed under extreme conditions. Additionally, these valve springs contribute to the longevity of the engines valvetrain components, withstanding the increased stresses and temperatures associated with high-performance applications.

In essence, the installation of heavier duty valve springs is a crucial step for any enthusiast seeking maximum output for their Cummins-powered vehicle. 



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SKU: 30673266694

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Holliday
Louisville, US
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Light and Warm
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Quite comfortable (with a little tape over the label on the inside left) perfect light weight shirt for 40°-50°.
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Reviewed in the United States on April 13, 2026
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Daniel agudelo
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Muy buenas para el sol
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Reviewed in the United States on March 29, 2026
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Amazon Customer
Port Orchard, US
★★★★★ 5
A nice, comfortable t-shirt with a bit higher moc neck
Size: Small, Color: White
I wear tee shirts a lot, but, because I need something a little warmer at times I wondered if such a thing as a moc-neck tee existed. This shirt is soft and comfortable, not tight but more tee shirt- like in fit.
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Port Orchard, US
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Fast, and exactly as described.
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Omaha, US
★★★★★ 4
Wash before wearing — the dye will run
Size: Small, Color: Royal Blue
Make sure you wash this shirt before wearing. Maybe even two washes. The color WILL run and dye your skin. (I was impatient and wore it before washing and ended up with a blue torso) Otherwise, it fits well. I’d put it as a regular fit rather than a slim fit. Very soft, albeit synthetic, material.
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Reviewed in the United States on March 21, 2026

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