• Honda 37840-RJH-006 TDC Genuine Cylinder Sensor Assembly
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Honda

Honda 37840-RJH-006 TDC Genuine Cylinder Sensor Assembly

Honda 37840-RJH-006 TDC Genuine Cylinder Sensor Assembly

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✔ Genuine Honda 37840-RJH-006 TDC Cylinder Sensor Assembly — OEM Part
✔ Fitment: 2001–2005 Honda Civic (all trims) and select Honda models (Edix, FR-V, Stream) with D17A and K20 engines
✔ Direct replacement for factory TDC/camshaft position sensor — no modifications required
✔ Manufactured to Honda’s original specifications
✔ Genuine OEM quality — ensures accurate engine timing and reliable starting
✔ Replaces 37840-PLC-006


Genuine Honda 37840-RJH-006 TDC Cylinder Sensor Assembly — for Honda Civic and Select Models

A check engine light with codes related to camshaft or crankshaft position (P0340, P0341, P0344, P0335, P0336), engine misfire, rough idling, difficulty starting, or a vehicle that cranks but won't start — these are common signs that your TDC (Top Dead Center) cylinder sensor is failing. This sensor, also known as a camshaft position sensor, monitors the crankshaft's exact position and sends signals to the ECU to control ignition timing and fuel injection. A faulty sensor can cause engine performance issues, poor fuel efficiency, and in some cases, a no-start condition .

This is a factory-original Honda TDC cylinder sensor assembly (OE part number 37840-RJH-006), specifically designed for the 2001–2005 Honda Civic and other select models. It is manufactured to Honda's strict quality standards, ensuring precise engine timing and reliable operation .

When to Replace

• Check engine light with P0340, P0341, P0344, P0335, or P0336 codes
• Engine misfire or rough running
• Difficulty starting or intermittent no-start condition
• Engine hesitation or stalling
• Poor fuel economy
• Vibration or reduced engine power

Product Details & Highlights

• ✔ Genuine Honda OEM — not an aftermarket or Chinese replica
• ✔ Accurate engine timing — ensures precise ignition and fuel delivery • ✔ Direct replacement — fits factory mounting location
• ✔ Manufactured to Honda's strict quality standards
• ✔ Backed by Honda's manufacturer warranty (valid through any authorized dealer)

Package Contents

• 1 × Genuine Honda 37840-RJH-006 TDC cylinder sensor assembly

FAQ

FAQ

Is this a genuine Honda part or a copy?
This is 100% genuine Honda OEM — in original factory packaging with the Honda part number printed on the label. It is not an aftermarket brand or a replica .

Does this fit my 2004 Honda Civic?
Yes — the 2004 Civic (including 2-Door LX and other trims) uses this TDC sensor. We recommend verifying with your VIN .

Does this replace 37840-PLC-006?
Yes — this part (37840-RJH-006) is the updated replacement for the older 37840-PLC-006 part number .

Can I use an aftermarket sensor instead?
Many users report that aftermarket camshaft position sensors often fail to work correctly or cause recurring issues. The genuine Honda OEM part is the reliable choice for proper engine operation .

What are the symptoms of a failing TDC sensor?
Common symptoms include engine misfire, hesitation, difficulty starting, stalling, and a check engine light with P0340-related codes. In some cases, the car won't start at all .

Does this sensor come with a warranty?
Yes — this sensor is backed by Honda's manufacturer warranty. For claims, please contact your nearest Honda authorized dealer.

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