06/22/2026
5.9 Cummins Injection Pump: Mechanical P7100 vs VP44 — Which Is More Reliable? If you own a second-gen Cummins, you already know the debate. The P7100 […]
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02/23/2026
Published by VFI Diesel on 02/23/2026
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The Killer Dowel Pin is a known design flaw on 1989–2002 5.9L Cummins engines that can cause catastrophic, unrepairable engine failure with no warning. A $50 prevention kit and an afternoon of work eliminates the risk permanently.
