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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.
Product Features
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.
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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 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 alternator on this 2003 Nissan Altima with the 2.5 liter, 4-cylinder engine. This is the same process and part on the Altimas and Centras from 2002 to 2006. The items you'll need for this are a new alternator from 1AAuto.com, 10mm through 14mm sockets and a ratchet with an extension, 5mm Allen bit, 14mm wrench and a pry bar.
Using a 10mm socket and ratchet, you just want to disconnect your negative battery cable.
Now, you want to just remove this engine cover. It's held in by four 5mm Allen bolts. Just go ahead and remove those. On your alternator, you'll see there's one 10mm bolt right here and another 10mm bolt right here. You want to just go ahead and remove those. Disconnect your alternator harness. Just press the tab and pull it free. Under this cap here, you'll see there's a 12mm bolt. Just go ahead and remove that. Now use a 14mm wrench and just place it onto the tensioner right here. Now when you press down on this wrench, it's going to loosen the belt. Pull the belt off the alternator. Try and keep it on the other pulleys and then slowly release the tension on the wrench.
The alternator is secured by two 14mm bolts right here. We'll fast forward as Don removes those. With the lower bolt, you're going to realize it's very long 14mm bolt so we actually have to lift up the fuse box so that we have better access. You want to pull off that cap and then you want to remove this 10mm bolt right here. He did actually need some penetrating oil for that and then you just want to lift it up just enough so you can get that lower bolt out the rest of the way. We just actually push it down with a pry bar and it pulls right out. Now take the pry bar and pry your alternator out.
On the left is the old alternator. On the right is the new one from 1AAuto. You can see they are identical and will mount exactly the same. Now, take your alternator and put it into place and you want to put it into place with that lower bolt. Again just do it from underneath the fuse box. You can leave that bolt a little bit loose. Now replace the upper bolt and once you hand thread that in then tighten both those bolts up. Now you just want to replace these two 10mm bolts along the top here. Make sure that you have that wire in place as you do that. Be sure to put this bracket back in place properly. Reconnect your alternator harness and put the battery wire back on and tighten up that nut. Now you just want to replace that 10mm bolt that secures the fuse box in place and replace the fuse box cover. Take your 14mm wrench, get it down on the belt tensioner, push it down and pull the belt on and you can see here we get it part way up and then we reposition the wrench and get the belt all the way on. Reconnect the negative battery cable. Put the engine cover back into place and replace those four 5mm Allen bolts.
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.
ALA94433
Recently installed this alternator and my car's performance has improved. No more shaking and struggle when using accessories.
I had this alternator installed in my Altima. It's working fine so far. This not the first time I purchased parts from A1 Auto. Been satisfied with every purchase.
Great item came in quick
I ordered this and received it within 2 days. I watched the video step by step with my boyfriend and managed to get it all hooked up within 2 hours. It was both our first time doing anything under the hood and now my car is running perfectly fine. I cannot thank you guys enough, there's no way we would have been able to do it without that step by step video. I will definitely be returning if I need more parts.
Great parts great service
Just like the OEM
Worked great. Zero problems.
Seems to work just fine, mine did not go on as YouTube video showed, both bolts must be removed from bottom of fuse box and box lifted to remove bottom bolt, Rusty and hard to do. And serpentine belt will likely Fall Off, easiest thing to go from the bottom by removing the wheel and panel, also wouldn't hurt to have a friend around, but can be done. Fuse box bolts hardest part
Was having major serpentine belt wobble (specifically at idle while in drive with the AC on) and found a forum suggesting it was the alternator to blame. Swapped mine with this one and sure enough the wobble went away. Easy to swap. Was even able to take the bottom bolt out and put it back in without moving fuse box like they did in the video with some clever angling (and stuborness). Putting the belt back on was by far the hardest part to do myself because I knocked it loose at some point and didn't have a long tension wrench like they do in the video. Ended up having to take the front passenger wheel off, align the belt on everything except the lowest pulley and using a wrench on the tensioner from below I was able to slide it on the lowest pulley. That wrench and/or a friend would have saved me a lot of time and frustration. Only been a few weeks but no issues so far.
Exact same as the old works perfectly fine and came with a computerized preformace test to show how it performs and that shows that it's not faulty.
Actual amps are not listed or available. Our parts are exact replacements for your vehicle's OEM parts. As long as your year, make, and model match up with our listing, these parts will directly fit and function like the originals.
