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Genuine Honda 39400-S84-003 Main Relay Assembly

  • Based on 171 reviews
Condition: New
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$56.00 Why this price?
Save $15.98 was $71.98

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Availability: 16 left in stock
Fulfilled by Amazon

Arrives Jul 25 – Aug 10
Order within 52 minutes
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Features

  • Genuine OEM part
  • Part number: 39400-S84-003
  • Package Weight: 0.089 kilograms
  • Oem equivalent part number: 39400-S84-003

Description

GET ON THE WATER

Connector Type: Screw


Contact Material: Silver


Contact Type: Normally Open


Mounting Type: Screw Mount


Brand: Honda


Connector Type: Screw


Contact Type: Normally Open


Mounting Type: Screw Mount


Operation Mode: Automatic


Coil Voltage: 12 Volts (DC)


Minimum Switching Voltage: 12 Volts (DC)


Specification Met: OEM


Contact Material: Silver


Brand Name: Honda


Warranty Description: LIMITED WARRANTY


Part Number: 39400-S84-003


Model: 39400-S84-003


Item Weight: 2 Pounds


Unit Count: 1.0 Count


Item Type Name: ACCESSORIES


Manufacturer: Honda


Included Components: Genuine Honda RELAY ASSY-, MAIN


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 25 – Aug 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Just what was needed.
Perfect fit. Works well. Hope to get another 300k miles out of this one just like the last.
Reviewed in the United States on May 17, 2025 by MDSG77059

  • Bien
Bien
Reviewed in the United States on April 3, 2026 by Amazon Customer

  • Didn't Burn up on Install like the one from autoparts store
This fuel relay worked on install (may 2022). If it fails in the next two years I'll update this review. After years of random engine stalls and waiting 15 - 20 minutes for the car to start again I replaced the fuel relay under the dash as that has resolved the problem. I previously tried a replacement relay from the local autoparts store and it immediately smoked, stunk, and locked in the on position (fuel pump would not shut off and engine would not stop running). ... show more
Reviewed in the United States on June 2, 2022 by Don Buchanan

  • Original Honda part for a great price
This part is 100% Honda and was provided in a sealed package. Going direct to Honda would’ve cost $150. Worked perfectly.
Reviewed in the United States on April 17, 2024 by TheRealDeal

  • Four Stars
easy to install, nothing better than genuine parts
Reviewed in the United States on June 5, 2017 by Miik

  • Works amazing
I did a few things last night I put in this pgm fi and a new throttle position sensor and the car is way more responsive and faster, it kicks into vtec much quicker. Great product
Reviewed in the United States on March 12, 2024 by Ed A

  • Problem solved.
Much needed replacement relay. Relay now powers the ECU/PCM and fuel pump allowing the engine to start every time. While Honda seems to use exceptionally durable components, these main relay modules tend to fail. We think there is an over heating issue as they age. I guess after 400K miles I got my moneys worth. ... show more
Reviewed in the United States on September 7, 2023 by Amazon Customer

  • Stopped working after 1 1/2 months.
Worked great for a month and a half. Now my car won’t start again. Something wrong with this product.
Reviewed in the United States on June 20, 2023 by Nadine P

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