Manufacturer guides

Impact Wiring Solutions: choosing a connector kit or a pre-wired pigtail

Identify the damaged end, match the exact connector, and confirm the pinout before ordering parts for a harness repair.

Find the damaged side of the connection

Identify the component and the harness connector that plugs into it. Photograph the plug face, the latch side and the wires going into it. Include any molded part number and record the bike’s model, year and engine. If the sensor itself is damaged, check that side before ordering a harness repair part.

Compare what comes in the package

Impact Wiring Solutions lists its Harley M8 MAP/IAT pigtail as a pre-wired TMAP connector with leads, splices and factory pinout instructions. The product page lists 2016–2022 M8 TMAP sensor fitment. Use the current listing to check your application before ordering.

A full connector kit can be a different kind of package. The company’s JAE MX1900 four-position kit lists both mating housings and crimp terminals. It illustrates why you should look at the contents even when the title says connector kit.

Verify the match before you cut

  • Compare the housing keying, latch, cavity count and which housing mates with your component.
  • Confirm the circuit at each cavity using the bike’s service wiring diagram and the supplier’s instructions. Check the pinout even if the replacement wires look familiar.
  • Send the supplier your plug photos and bike details if the part number or fitment is unclear. When sharing the repair on The Tune Bench, include the part number and which connector side you replaced.

Manufacturer references