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Nilight 5PCS Automotive General Purpose Relay 4Pin SPNO 20A Micro Cooling Fan Sealed Relay Plug & Play Direct Replacement for Polaris RZR 570 900 1000 SxS Slingshot Ranger Sportsman, 2 Year Warranty
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Purchase options and add-ons
| Connector Type | Crimp |
| Contact Material | Brass |
| Contact Type | Normally Open |
| Current Rating | 20 Amps |
| Mounting Type | Snap In Mount |
About this item
- Compatibility: Direct Replacement for the old or corroded ones in 2012-2015 RZR 570; 2010-2014 RZR 800 All models; 2011-2016 RZR 900 All models; 2014-16 RZR 1000. Please confirm that your relay matches the same model number of 303-1AH-C-R1-U01.
- Type: 4Pin SPNO Relay, High Rating up to 20A. 12 VDC (Sealed Washable). Power consumption: 960 mW. Replace your blown relay with this exact replacement. This relay is located in the fuse panel and most machines use them to control different functions.
- General purpose applications: General purpose for automotive applications in power. Contact Form: SPST (1 Form A), normally open, 20A micro relay that fits right into 4 Pin metripack 280 sockets. It handles 20A but only draws about 1 watt to keep closed. That's ideal for many applications where space is limited and the triggering circuit cannot tolerate much additional load (where relays that draw more trigger power aren't suitable).
- Premium Quality:Nilight premium voltage regulator rectifier is 100% brand new aftermarket unit built to meet OEM specifications. Made by high-grade materials to ensure superior quality and long lifespan. High Temperature withstand up to 125°C ambient.
- Package Includes: 5 PCS Automotive Purpose Relay. 2 Year Warranty by Nilight.
Frequently bought together

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Product details
- Product Dimensions : 0.39 x 0.39 x 0.39 inches; 2.12 Ounces
- Date First Available : December 14, 2022
- Manufacturer : Nilight
- ASIN : B0BQ2RL2N7
- Country of Origin : China
- Best Sellers Rank: #8,182 in Automotive (See Top 100 in Automotive)
- Customer Reviews:
Product Description
Nilight Automotive Purpose Relays
Nominal Coil Voltage: 12 VDC
Current Rating:20 Amps
Contact Form: SPNO
Perfect Fitment:
2012-2015 RZR 570
2010-2014 RZR 800 (All models)
2011-2016 RZR 900 (All models)
2014-2016 RZR 1000
Don't be fooled by other versions that are not sealed for Powersports off-road applications. On ATV's and Side by Sides, the last thing you want is moisture getting in your electrical connections. This is a direct OEM replacement relay for Polaris OEM Part numbers 4011283, and 4016819. The number on the relay reads 303-1AH-C-R1-U01-12VDC. These units are also sealed; so, in combination with a sealed base, are good for motorcycle, marine, and rugged automotive applications where components are predicted to get wet (not immersed, but exposed).This relay powers the cooling fan on many Polaris ATV's and Side by Sides from 2010 to current year models.
Important information
To report an issue with this product or seller, click here.
From the brand
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About Us
With over 7 years of experience in the fuse and relay field, Nilight produces long-lasting, powerful, and simple products.
Nilight produces quality products with cost-effective offers. With rich industry experience and advanced technology, Nilight combines industry-excellence research and knowledge to build innovative fuses and relays at the forefront of design, intelligence, and power.
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From the manufacturer
- Nominal Coil Voltage: 12 VDC
- Contact Form: SPNO
- Current Rating:20 Amps
- Replace Part Number: 303-1AH-C-R1-U01
- Responsible Party: Nilight
4Pin SPNO Automotive Purpose Relays
Fitment:
2012 2013 2014 2015 RZR 570
2010 2011 2012 2013 2014 RZR 800 (All models)
2011 2012 2013 2014 2015 2016 RZR 900 (All models)
2014 2015 2016 RZR 1000
This relay is located in the fuse panel and most machines use 4-5 of them to control different functions. Fits the above RZR's and more always keep a spare pair of relays.
Please confirm the pin number, check the description or use the year/make/model drop down bar and interchangeable part numbers to confirm the compatibility before purchasing.
Specification
| Contact form | A set of normally open |
| Contact material | Ag Alloy |
| Contact load | 12V:20A 14VDC 24V:15A 28VDC |
| Contact resistance | Max.50mΩ |
| Operate/Release Time | Max.10ms |
| Dielectric strength | 550VAC, 50/60Hz, 1 min |
| Insulation resistance | Min.100mΩ 500VDC |
Product Details
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|---|---|---|
CompatibilityDirect Replacement for the old or corroded ones in 2012-2015 RZR 570; 2010-2014 RZR 800 All models; 2011-2016 RZR 900 All models; 2014-16 RZR 1000. Please confirm that your relay matches the same model number of 303-1AH-C-R1-U01. |
Professional ConstructionThis 4-prong relays are SPNO designed. High Rating up to 20A. 12 VDC (Sealed Washable). Power consumption: 960 mW. Replace your blown relay with this exact replacement. This relay is located in the fuse panel and most machines use them to control different functions. |
High Quality Copper CoilThe real copper coil makes the voltage more stable and provides the loads more conductivity. Ensure superior quality and provide effective protection |
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| 30A Fuse Relay | 30/40A 12V SPDT Relay | 30/40 Amp Relay | 30/40 Amp Relay | Standard Fuse | Fuse Holder | |
| Fuse | Included | / | / | / | ✓ | ✓ |
| Wire Gauge | 14AWG & 16AWG | 12AWG & 16AWG | / | 12AWG & 16AWG | / | 16 gauge |
| Type | SPST Relay | SPDT Relay | SPDT Relay | SPDT Relay | Standard Fuse | Standard Fuse Holder |
| Function | Controls circuit contacts of an electronic circuit | Controls circuit contacts of an electronic circuit | Controls circuit contacts of an electronic circuit | Controls circuit contacts of an electronic circuit | Circuit Protection | Circuit Protection |
| Max Voltage | 15V DC | 14V DC | 15V DC | 15V DC | 32V DC | 32V DC |
What's in the box
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the performance, value, and delivery of the relay. They mention that it works well, is great value for money, and is well packaged. Customers appreciate ease of installation, and quality. That said, some complain about the harness. Opinions are mixed on portability, and fit.
AI-generated from the text of customer reviews
Customers are satisfied with the performance of the relay. They mention that it works well so far, has no problems, and works for aux lights, amps, or fans.
"work perfect" Read more
"Relays work fine" Read more
"...These new relay seem to be working very good, I didn’t have any issue as of right now...." Read more
"Good price, works perfectly." Read more
Customers like the quality of the relay. They mention that it's well-made, the pigtail harness seems to fit well, and the ribs were pre-stripped with good quality wire. Some customers also mention that the longevity seems fine for intermittent use, but they are not sure if they'd hold up to longer use.
"They seem decent for what they are. The relay seems well made and the pigtail harness seems to fit well...." Read more
"...Nice to have extras when needed. Longevity seems fine for my intermittent use; not sure if they’d hold up to heavy use, like starter relay; but will..." Read more
"...install, 8/12/23 after using all 5 relays I found that the connectors are poor quality and push the female connector out of the plastic holder,..." Read more
"At first glance the relays and sockets look high quality until you try to plug a relay into a socket...." Read more
Customers like the value of the relay. For example, they say it's a great deal for 5 relays and connectors.
"Great item very good price" Read more
"Good price, works perfectly." Read more
"Relays seem to work well. Good value for the cost.Mating pins on 3 of the 5 connectors fell out when relay was inserted...." Read more
"...for my project and they're working perfectly I think they were worth the price and I think they were cheaper than I could find locally and had wire..." Read more
Customers find the installation of the relay to be easy. They mention that the product is small, low cost, and easy to wire using the attached relay. They also appreciate the kit for building simple wire harnesses. However, some customers have reported that the wires are a little loose in the connectors.
"Great kit for building simple wire harnesses. The wires are a little loose in the connectors...." Read more
"good product easy to install, 8/12/23 after using all 5 relays I found that the connectors are poor quality and push the female connector out of..." Read more
"...Much easier. Also takes the load off the switches which now only trigger the relay. Great value...." Read more
"...The wire soldered easily and made installation easy for my application." Read more
Customers are satisfied with the delivery of the relay. They mention that it was shipped quickly, and was well packaged. This made installation quick and easy.
"...Product came packed nicely in a box with harness plugs and directions...." Read more
"shipped quickly and work well for my applications." Read more
"...Also there is a mounting bracket with each relay to make it quick and easy to install these. Great product for the car, boat or motorcycle...." Read more
"This item had the best value for the packet. It arrived very fast. Easy install, works great, it has instruction that is well detailed...." Read more
Customers are mixed about the portability of the relay. Some mention that the pins are easy to push out, while others say that the plug is very cheep and pushes the connector out. The plug and relay easily come apart, making it difficult to connect.
"...5 relays I found that the connectors are poor quality and push the female connector out of the plastic holder, only 2 out of the 5 worked, the other..." Read more
"Used two of these and the same terminal on both connectors pulled apart, and i had to rebend the terminal to get it to hold." Read more
"...The wires are a little loose in the connectors. Easily able to pop out to change the color positions to correspond with the harness you’re building." Read more
"...One for the trunk, one for lock, one for unlock. One of the connectors came out of the plug as soon as I installed the relay...." Read more
Customers are mixed about the fit of the relay. Some mention that it was a direct fit and worked as intended, while others say that it did not fit their car and the connector body was very loose.
"...The relay seems well made and the pigtail harness seems to fit well...." Read more
"...connector with the relay pin outside of the connector body, the fit was very loose...." Read more
"...It was a direct fit and worked as intended. The relay was less expensive than the MOPAR piece so durability is yet to be determined...." Read more
"...They are small, low cost, and easy to wire using the attached relay socket...." Read more
Customers have negative opinions about the wiring harness of the relay. They mention that the wires are not secured in plugs properly, they are a little loose, and were not installed correctly. The harness connections are loose and not consistent. Some customers also mention that different wires pushed out of each one.
"...All of the problems were with the black wires. Luckily I had terminals to fix the problem...." Read more
"...of current flow, they're a fire waiting to happen because the harnesses are not built for that kind of current. It's a shame." Read more
"...The relay itself doesn't look very water resistant and the harness certainly isn't. Should be fine where I plan to mount them." Read more
"...Nice that they come with 5 relays and wire harnesses, though I don't currently have a need or use for the harnesses...." Read more
Reviews with images
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Top reviews
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
Another benefit of replacing a older relay with these newer one is that you could always find exact part to replace it without having to redo the whole wiring again.
I would highly recommend this relay if you are building a custom wiring.
Top reviews from other countries
A word of caution, though: in the diagram provided (which also comes in the box, to my surprise - nice touch), there's a rocker switch we know nothing about, except that it has three terminals. If you take a typical SPDT rocker switch and connect it according to the diagram, you'll short-circuit the battery (see picture), which is a *fire hazard* (even if the fuse is there). So I'm guessing they meant to depict an illuminated SPST switch, which would look very similar, and would have the same three terminals, but one has a different color (that one is for the internal light circuit). And if that's the case, the wiring in the diagram still doesn't look right based on the switches I have here - so please make sure you know what you're doing before you power up the whole circuit.
Edit: I forgot to write about the relays. I was a little worried after reading reviews saying the wrong items were sent. Well, I got the right ones (5-pin), and they all work. As for quality and durability, I can't say much at this point. Need more time to try them.
Reviewed in Canada on June 23, 2023
A word of caution, though: in the diagram provided (which also comes in the box, to my surprise - nice touch), there's a rocker switch we know nothing about, except that it has three terminals. If you take a typical SPDT rocker switch and connect it according to the diagram, you'll short-circuit the battery (see picture), which is a *fire hazard* (even if the fuse is there). So I'm guessing they meant to depict an illuminated SPST switch, which would look very similar, and would have the same three terminals, but one has a different color (that one is for the internal light circuit). And if that's the case, the wiring in the diagram still doesn't look right based on the switches I have here - so please make sure you know what you're doing before you power up the whole circuit.
Edit: I forgot to write about the relays. I was a little worried after reading reviews saying the wrong items were sent. Well, I got the right ones (5-pin), and they all work. As for quality and durability, I can't say much at this point. Need more time to try them.



















