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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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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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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Amazon Customer
Belleville, US
★★★★★ 5
As described
Color: Orange4pro
Very strong and durable.
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Reviewed in the United States on January 10, 2026
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Ed Elliott
San Leandro, US
★★★★★ 5
Absolutely what I needed.
Color: Orange4pro
Fast shipping. Exactly as described.
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Reviewed in the United States on January 16, 2026
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Juan
Phoenix, US
★★★★★ 5
Great product
Color: Orange4pro
Strong magnet!!!
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Reviewed in the United States on December 9, 2025
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Kindle Customer
Cuba, US
★★★★★ 5
Husband approved
Color: Orange4pro
They work great in my husband's garage to hold tools, extension cords, brakes, shovels, etc.
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Reviewed in the United States on July 6, 2025
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J. Brown
Houston, US
★★★★★ 5
An incredibly easy to use shelf pin hole jig
Size: 11 Holes, Size: 11 Holes
A solidly constructed jig used for easily creating either a 5mm or 1/4" shelf pin holes. Mark your control line and place the jig on it while using two thumb screws that act as both a clamp and edge guide for perfectly aligned holes. Various thumb screw holes allows for holes that are closer to the edge of your work or for holes further in from the edge.
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Reviewed in the United States on February 18, 2026

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