98-18 Cummins Smeding Diesel Heavy Duty Performance 110LB+ Valve springsSmeding Diesel 110 LBS Valve SpringsComplete set of 110 LBS valve springs for 1998. 5 18 Cummins. A must have for performance enthusiasts running 50 PSI or greater Includes (24) performance valve springs

Use our new Power Level 7 to fuel up to 3600 RPMs and gain up to 150HP

1/8 IN NPT auxiliory ports are provided for injection or sensors and include plugs if not used

Stop dealing with wires

With responsible driving habits it's not uncommon to see a nice bump in MPG along with an all-around better driving experience

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(26) Cylinder Head Stud Washers

where the competitors pressure boxes create too much pressure

Wheelbases:Crew Cab/Short Bed

Yukon kits save time and money by including everything you need in one simple part number and were created using years of technical expertise and sales data

1994-2018 dodge Cummins 2500/3500 Diesel 5

Heavy-duty Boxed Sheet Metal Construction

Kits come complete with all hardware and can quickly be installed in approximately 1-hour