★★★★★
March 16, 2026
Worked perfect!
Replaces
About TRQ:
TRQ is a trusted brand dedicated to making every repair a success story by combining premium parts with easy installation. Each TRQ part is engineered by a team of automotive experts to meet or exceed OEM standards, delivering enhanced performance and maximum longevity. With rigorous in-house testing, the brand ensures superior fit and function across every product line. TRQ also provides customers with best-in-class, step-by-step installation videos—so you can complete repairs with confidence, whether you're a first-time DIYer or an industry professional.
Returns: Parts with electrical components cannot be returned once installed.
Attention California Customers:
WARNING: This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Lifetime Warranty
This item is backed by our limited lifetime warranty. In the event that this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.
Returns: Parts with electrical components cannot be returned once installed.
FREE Shipping is standard on Orders shipped to the lower 48 States (Contiguous United States). Standard shipping charges apply to Hawaii, Alaska and US Territories. Shipping is not available to Canada.
Expedited is available on checkout to the United States, excluding Alaska, Hawaii and US Territories as well as P.O. Boxes and APO/FPO/DPO addresses. Final shipping costs are available at checkout.
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Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.
Hi, I'm Don from 1A Auto. I hope this how-to video helps you out, and the next time you need a part for your vehicle, think of 1AAuto.com. Thanks.
In this video, we're going to show you how to replace the coolant temperature sensor on this 2003 Nissan Altima. The items you'll need for this repair include a 14mm wrench, Phillips screwdriver, drip pan, and a funnel with a screen or new antifreeze.
Start by removing the radiator fill cap as well as your overflow bottle cap. Under the vehicle, in this hole right here, this is your coolant drain. Using a Phillips screwdriver, twist that plug out. Make sure you have a clean drain pan to collect that coolant. Once the coolant stops pouring out, replace the plug.
Disconnect this harness by pushing in the tab and pulling it free. There's your coolant temperature sensor. Put a 14mm wrench on, counterclockwise, and it should come right out.
Take your new coolant temperature sensor and twist it back into place. Using your 14mm wrench, tighten it back up, and reconnect your harness. Fast-forward as Don replaces the engine cover and those four 5mm Allen bolts. Refill the radiator.
We're using the fluid that we drained out, we've got a funnel with a screen. Pour it back in. You can use new radiator fluid if you like. Fill the radiator directly, then fill the coolant bottle, dry the vehicle, and make sure you fill it to the proper level.
We hope this video helps you out. Brought to you by www.1AAuto.com, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.
ESA53539
Worked perfect!
Exact part!
I had a problem with this part and they took care of it right away. I didn't have to send anything back they just sent me another part. I will be buying from these guys again. Their videos really help and they are very knowledgeable.
Part fit as expected. This is exactly the part I needed to do the job. Shipping was free fast. I'm overall satisfied with my purchase and shopping from this website.
Quick delivery, fits like original, and good price.
Received the item on time. It is good quality as well. Only problem is that the washer was not included even though the picture on the website shows up he washer attached to the sensor. I used the one from old sensor.
This part is priced very nice however it didn't come with a washer. Short story 2 broke because of the washer not being included. Dealership said the quality was not up to Nissan spec.Got one from dealership and it went on with no problems what so ever.
same as the OEM for the model applications listed
