Speed Controllers

Dial in precision RPM — no rev hunting, no sag.

Diesel engines need steady RPM for smooth power delivery — especially in generator, marine, and industrial applications. Our speed controllers keep your governor system responsive, reliable, and in sync.
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  • 0.25 in end and 1/4 - 28 UNF – 2B female thread (0.72 in depth) - Simms Diesel

    0.25 in end and 1/4-28 UNF – 2B female thread (0.72 in depth)

    0.25 in end and 1/4-28 UNF – 2B female thread (0.72 in depth)
    $0.00 NZD