Air and Fuel› Air and Fuel Cooling Systems and Components
K-Tuned
K-Swap Conversion Harness
SKU: KTH-421-100
Easy — 1–2 hours
Description
It integrates the K-series ECU and related electrical functions for proper operation, including the fuel pump, tach, speedo, starter signal, and O2 sensors. The harness is constructed with quality mil-spec, OEM-colored wire and protected by mil-spec nylon sleeving.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | K-Tuned |
| Part Number | KTH-421-100 |
| Category | Air and Fuel |
Buy with Confidence
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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