Core thickness equal to the OE part. If radiator core is slightly thinner than the OEM, this can decrease overall performance and lifespan.
Premium Aluminum Core
Engineered for top performance.
Provides efficient cooling and heat-transfer.
100% Leak Tested
Built to strict quality control standards.
Transmission Cooler Note:
Some radiators are designed to be used on both automatic and manual transmission applications. These radiator may have fittings for an automatic transmission fluid cooler. However these radiators can be used on manual transmission models without issue and require no additional parts or modifications.
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.
Packaging:
Radiators may incur bent cooling fins or small imperfections during shipping or manufacturing. A few bent fins or small dents and scratches do not affect the fit or the function of the part. Neither our 60 Day satisfaction guarantee, nor the manufacturer's warranty, cover these types of insignificant damages.
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How to Replace Radiator 2002-06 Nissan Altima
Created on:
Tools used
Funnel
Flat Blade Screwdriver
Phillips Head Screwdriver
Jack Stands
7mm Socket
Drain Pan
10mm Socket
Ratchet
Floor Jack
Wire Cutters
1. Draining the Radiator
Twist off the radiator fill cap
Twist off the coolant overflow bottle cap
Have a drain pan ready
Remove the coolant drain plug with a Phillips head screwdriver
Allow the coolant to drain
Reinsert the coolant drain plug
2. Removing the Radiator Fan
Remove the plastic clips from the top of the radiator cover
Loosen the upper radiator hose clamp with a pair of pliers
Remove the upper radiator hose
Disconnect the radiator fan wiring harnesses with a flat blade screwdriver
Remove the two 10mm bolts from the radiator fan
Pull the lower radiator hose off of the radiator fan
Pull the radiator fan up and out
3. Removing the Radiator
Raise and secure the vehicle
Remove the four plastic clips from the splash shield
Have a drain pan ready
Loosen the transmission fluid hose clamps with a pair of pliers
Disconnect the transmission fluid hoses
Lift the hoses to prevent fluid from draining
Loosen the lower radiator hose clamp with a pair of pliers
Remove the lower radiator hose
Remove the small hose from the top of the radiator
Remove the two 10mm bolts from the radiator brackets
Pull off the radiator brackets
Lift the radiator up and out
4. Installing the New Radiator
Line up the radiator locating pegs
Push the radiator down into place
Put on the radiator brackets
Insert the two 10mm bolts into the radiator brackets
Connect the small hose at the top of the radiator
Reconnect the transmission fluid hoses and fasten the clamps
Reconnect the lower radiator hose and fasten the clamp
Push the splash shield into place
Insert the four plastic clips into the splash shield
5. Reinstalling the Radiator Fan
Lower the vehicle to the ground
Push the radiator fan into place using the locating tabs
Clip the lower radiator hose into the radiator fan
Install the two 10mm bolts into the top of the radiator fan
Reconnect the upper radiator hose and fasten the clamp
Connect the radiator fan wiring harnesses
Put the radiator cover into place
Insert the four plastic clips into the radiator cover
6. Refilling the Radiator
Add coolant to the radiator using a funnel with a screen
Twist on the radiator fill cap
Twist on the coolant overflow bottle cap
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 next time you need parts for your vehicle, think of 1AAuto.com. Thanks.
In this video, we're going to show you how to replace the radiator on this 2003 Nissan Altima with the 2.5-liter, 4-cylinder engine and it's the same process on these Altimas from 2002 to 2004. The items you'll need for this repair are a new radiator from 1AAuto.com, flat blade screwdriver, Phillips screwdriver, a 10 millimeter socket and ratchet, pliers, a funnel with a screen, a drain pan and jack and jack stands.
Start off by removing the radiator fill cap as well as your overflow bottle cap. Now, under the vehicle in this hole right here, you'll see this is your coolant drain. Using a Phillips screwdriver, just twist that plug out and make sure you have a drain pan that's clean to collect all that coolant. Once the coolant stops pouring out, replace the plug.
Next, you want to remove this plastic panel here by removing these four clips, just use a flat blade screwdriver to pry out the center of the clips and then the clip will just pull right out. Now, using a pair of pliers, push the teeth together on this hose clamp and pull it back and just remove that hose. On the back of the radiator fan, you'll see this harness and it's got two connectors, one on the back of each fan. You just want to push in the tab on the top and pull up on the harness. The harness itself is actually held in with several clips that clip to the radiator fan. You just want to pry out each one of these clips. The radiator fan is held in by these two 10 millimeter bolts and we'll just fast forward as Don removes these. With those bolts removed, you can pull the radiator fan up and out. You can see him reach down right now to remove something on the bottom of the radiator fan and the clip to the fan is actually a hose right here and you can see it clips in right there. You want to make sure you remove that.
Now, jack your vehicle up and remove the four clips on the panel here. As you can see, we're missing a couple, but to remove them, all you need to do is pry them out using a pair of pliers. You can use wire cutters and we don't actually cut the clip but they just help to get underneath it. Now underneath this panel, you'll see these three hoses. Use a pair of pliers on the hose clamps and just slide those clamps back. Now, just twist those hoses and pull them free. You'll get some transmission fluid that comes out so if you just tuck them up higher, the transmission fluid will stop flowing and you won't have to worry about it leaking out, but you will want to have a drain pan underneath you. On this larger hose, do the same thing. Slide the hose clamp back and pull the hose free. Make sure your drip pan is underneath this. Now, back at the top of the radiator, there is this little hose. Do the same thing. Pull the clamp back and remove the hose and then you just want to remove these two 10 millimeter bolts. Once the bolts are removed, those brackets should lift right up and off and you can pull your radiator right out.
Now, to install your new radiator, you want these two pegs to go down into these two holes, so just line it up and push your radiator down into place. Now, replace those two brackets and the 10 millimeter bolts to secure them. We'll just fast forward as Don tightens those up. Now, put that small hose at the top of the radiator back into place and slide the clamp forward. Now back under the car, you want to replace all these hoses and you can see that we got new clamps. You can buy these clamps at any hardware store and these will work a lot better than the corroded ones we had before. With this style of clamp, it's actually a 7 millimeter bolt that you tighten on each of them and it tightens the clamp. We'll just fast forward as Don does this and we'll continue to fast forward as he puts that plastic panel back into place and replaces those two clips.
Now, take your radiator fan and push it down into these two slots right here. We're going to fast forward as Don feeds the fan down into place. Just be careful when you're replacing this not to pinch any of the hoses. Once that's back in place, replace the hose back into the clip at the bottom and replace those two 10 millimeter bolts at the top of the fan. Now, put the large radiator hose back into place and just slide the hose clamp forward to secure the hose. Reconnect your radiator fan harness and push the clips on the wires back into the fan. Now, replace the plastic panel and the four clips. Push them in with the center still up and push the center down to lock them.
Using a funnel with a screen, you pour your coolant back into the radiator and replace your radiator cap.
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.
RDA82691
In Stock
Product Reviews
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4.85/ 5.020
20 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
17
3
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Patrick
February 15, 2017
Perfect fit, good quality. Pretty much what I have come to expect from 1aauto.
Not bad to install
Arthur
July 7, 2017
Went with 1A AUTO because of the how to videos, and price was excellent, how can you beat that!
No leaks !!!! Works great!
David
July 20, 2018
No more leaks! Dont like how before you place order shipping time expans after you hit pay
C
December 11, 2018
Perfect fit every time. Fast delivery . Great price.
L
August 9, 2019
Right on the money
Great radiator
C
September 21, 2019
The radiator I received arrived reasonably and was in good shape. Easy to install and was exactly what I ordered.
Nissan radiator
STEVEN
October 13, 2019
Perfect fit. Took the car out for a 400 mile ride with no issues.
Excellent Radiator for 06 Altima
Kevin
January 1, 2020
Radiator arrived quicker than expected, perfect replacement for original, easy to install. Especially appreciate the plastic caps on the inlets and outlet s to protect during shipping and handling. I have ordered from u many times and due to the excellent service I will be using you in the future for my part orders
A
September 6, 2020
Bueno
Miguel
December 23, 2021
Muy buen servicio
If you get new radiator get the fan too.
Orlando
January 16, 2022
Good radiator for the price, easy to install, the issue you will find is that the radiator fan don't going to fit good with the new radiator, so if you get the radiator, will be better get the fan radiator, on that way both are aftermarket parts and will fit good. Mine had to cut the plastic to fit on the radiator holes.
thomas
June 7, 2022
Exactly what I needed at a cheaper price than other sellers. Thanks!
Great Fit!!!
Yolanda
October 11, 2023
Fits just like the original,Easy to
Put in,didn't have any problems with the radiator.Thanks,1-A Auto for a great videos and parts.
craig
November 23, 2023
Fit peefect
Radiator for an 2006 Altima
JORGE
December 11, 2023
It is a good product, fits very well and has been working excellent. Price is also good..
Darwin
May 7, 2024
Good fitment.
Perfect
Syed
May 18, 2024
Love it, perfect fit!
john
August 13, 2024
fits and works good.
TRQ Radiator
Fernando
August 25, 2024
Good quality, good price, easy to install, no issues with this product.
Easy. Quick. Reliable
David
September 15, 2024
Never had another issue after installing
Customer Q&A
Does the radiator come with the radiator cap?January 5, 2019
Enrique S
10
No
January 5, 2019
Bruce B
10
No it doesnt
January 5, 2019
W H
10
it has been 18 months since I had this done...radiator performed as it should ... excellent! Can't remember if this cap was included... I really don't think so. Sorry.
January 6, 2019
R O
10
yes
January 7, 2019
R I
10
Yes
January 13, 2019
T E
will my old fans fit ?July 11, 2022
John D
10
Yes they will fit perfectly
July 12, 2022
Michael B
10
It works extremely well
July 12, 2022
JOCELYN F
10
Yes, as long as your vehicle is listed to fit.
July 12, 2022
Andra M
Will this fit a manual transmission ?September 13, 2023
Yolanda J
10
Yes, this is able to fit for both manual and automatic transmissions.
September 14, 2023
Emma F
10
Yea it should fit
September 20, 2023
Terrell W
Customer service
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Nissan is a registered trademark of Nissan Motor Co., Ltd. 1A Auto is not affiliated with or sponsored by Nissan or Nissan Motor Co., Ltd.See all trademarks.
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