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⚡ Upgrade your ride’s heartbeat with effortless plug & play power!
The 39400-SH3-003 RZ-0063 Main Relay Conversion Kit is a plug-and-play solution designed to replace aging main relays in select Honda and Acura models from the mid-80s to early 90s. It converts the original relay to a standard, more reliable relay switch, improving electrical system stability without any modifications. The kit includes everything needed for installation and comes with a 1-year warranty, making it a must-have upgrade for enthusiasts seeking dependable performance and easy maintenance.
| Asin | B0CDR5HWRC |
| Best Sellers Rank | #194,955 in Automotive (See Top 100 in Automotive) #50 in Automotive Replacement Relay Control Module Relays |
| Brand Name | XYgdhqpt |
| Connector Type | Plug-In |
| Contact Type | Normally Open |
| Customer Reviews | 4.3 4.3 out of 5 stars (34) 4.3 out of 5 stars |
| Item Highlight | Fit for 88-91 CivicCRX,86-93 Integra,86-90 Legend,92-94 Vigor,86-89 Accord,85-91 Prelude,Convert Main Relay to Standard Relay |
| Manufacturer | XYgdhqpt |
| Mounting Type | [Specific Automotive Mount] |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Operation Mode | Automatic |
| Part Number | 39400-SH3-003 RZ-0063 |
| Unit Count | 1 Count |
| Warranty Description | 1 Year |
User
Perfect!!!
Shorted out the OEM relay and picked this one up. Easy swap and easier to install back in place. Works as intended and would highly recommend bought an extra to keep in the glove box, just in case.
User
Great!
Work Great!!! 100%
User
This fixed my problem
92 integra would randomly not start. I wouldn't drive it anywhere being afraid I would be stranded. This took 5 minutes to replace original and now it starts up every time.
User
Good value
Great product
User
Works
So far has been working great on my 1989 CRX.
User
Will work in a pinch
It works, with that said if I drive for a little while and it gets a little hot it'll just kill my car.
User
Works
Pretty nice works for 88 integra, I’ve been using for a couple of weeks without issue.
User
Plug and play for my 91 CRX si
Perfect fit, easy plug and play works as it should and the harness Is long so you can tuck it
User
Works great
Worked perfectly
User
Swap that big ugly expensive relay
Finally a simplified way to replace the main relay in my 91 civic , its simple no more sourcing that big over priced one
User
Works as described
Works perfect and uses a basic relay that can be easily found for future replacement
Trustpilot
1 day ago
2 months ago