Ignitions and Electrical› Ignition Boxes and Components
MSD
Single Tower Coil, Isolated Ground This Coil Is Specially Designed With A Higher Turns Ratio That Is Matched To The MSDs Cd Output MSD Ignition
SKU: M00T 42921
Easy — 1–2 hours
Description
Part #: 42921
Depending on your application, you'll have two, three or four of these coils. The result is a high voltage spark that is capable of full output through high racing rpm.
This Coil is specially designed with a higher turns ratio that is matched to the MSD's CD output.
Fitment
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Specifications
| Brand | MSD |
| Part Number | M00T 42921 |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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