OEM-Style Black 3-Pin Connector for K20 / K24 Engine Sensors

The Honda Black 3-Pin Sensor Connector is an OEM-style plug used on early K-Series engines (commonly 02–04 RSX style) for critical engine management sensors including crank, cam, MAP, and TPS circuits.

This connector is widely used across K20 and K24 platforms and is also found on select late-model D-Series and OBD2 B-Series applications. It is a common replacement when repairing damaged sensor wiring or fabricating custom engine harnesses.

This listing covers the black 3-pin K-series connector. Honda also uses similar 3-pin connectors in different keyway configurations (including blue variants), so visual confirmation is required before ordering.

Common Applications

This 3-pin black connector is frequently used for:

• Crank Position Sensor (CKP)

• Cam Position Sensor (CMP)

• MAP (Manifold Absolute Pressure) sensor

• TPS (Throttle Position Sensor)

Commonly found on:

• K20A / K20A2

• K24A / K24A2

• 02–04 RSX

• Early TSX K24

• Late-model D-Series engines

• Select OBD2 B-Series applications

If your sensor uses the black 3-pin rectangular Honda connector (02–04 style), this is the correct OEM-style replacement.

Important Fitment Note

Honda uses multiple 3-pin connectors with different keying. While this is the common black K-Series style, other variants (including blue keyed connectors) may look similar but will not interchange.

Always confirm connector keyway and sensor orientation before purchase.

Ideal for K-Swap & Standalone Harness Builds

This connector is commonly required when:

• Building a K-swap harness

• Repairing crank or cam sensor wiring

• Replacing MAP or TPS connectors

• Converting to standalone ECU

• Rebuilding aging engine harnesses

• Fabricating mil-spec or tucked harness systems

Proper CKP and CMP wiring is critical for engine synchronization and ignition timing accuracy.

Built for Professional & Motorsport Harness Fabrication

• Accepts 22–20 AWG terminals

• Includes matched wire seals

• OEM-style locking housing

• Designed for engine bay heat, oil, and vibration

Suitable for street, turbo, track, and professional motorsport builds.

What’s Included

• 1× Black 3-Pin Connector Housing

• 3× Terminals (22–20 AWG compatible)

• 3× Wire Seals

Installation Notes

Proper open-barrel crimping tools are required for correct terminal installation. Professional wiring knowledge is recommended to ensure correct signal polarity and shield routing (where applicable).

Improper crank or cam wiring may result in no-start conditions or synchronization faults.