Replaces

Nissan Altima Exhaust Manifold Catalytic Converter Assembly Cateran Inc 33203K

Name: 1AEEM00739-Nissan Altima Exhaust Manifold Catalytic Converter Assembly Cateran Inc 33203K
Brand: Cateran Inc
SKU: 1AEEM00739
Price: 264.95 USD
Availability: InStock
Rating: 4/ 5.0 (31 reviews)

07-12 Altima 2.5L Exhaust Man w/Integral Cat Conv (w/O2 Prov) (w/Gasket Kit & Hanger) (exc CA)

$ 264.95

$397.95

33% OFF

$397.95

33% OFF

FREE SAME DAY SHIPPING

Read 31 REVIEWS

33203K

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Frequently bought together

Nissan Altima Exhaust Manifold Catalytic Converter Assembly Cateran Inc 33203K

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Product Reviews

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4.84/ 5.0

ALtima Mani Cat

Frank

Part fit car good and came with all parts required. Only problem I had was the heat shields did not line up. Up hey, I got three of four bolts. That's good, right?

Great product! Exactly what I needed.

Justin

Very satisfied with my order! Was on time and the install was a breeze. Thank You for the headache removal!

Manifold with converter

Awesome love it works perfect wished I ordered my transmission from you guys.Great company to order parts from will pass Good Words on about your company.

2010 Altima parts

Thank you for your website Parts fit perfectly delivered on time Price was right You offered things others do not Will be buying again

Exhaust manifold

Cameron

Direct fit, came the next day. 1aauto rocks. I will forever buy all my parts from this site.

Perfect Fit

Bought since my old one had a hole in it. Took it to my mechanic and it was put on with no issue. All gaskets included.

Great manifold

Highly recommend, car runs and sounds great now. New gaskets and bolts where needed. Installed it with no surprises.

Very Good Customer Service

I returned the Exhaust manifold that I thought was damaged goods and had no problem returning the product with no charges to me to return the product. I was shipped a replacement with no hesitation on their part. I'm really happy with the process and won't hesitate to use them again and recommend to friends.

Perfect part

High recommend this part it fit and my car run good engine sound great,deliver on time and the same in the picture.

Perfect fit

Charla

This catalytic converter was a perfect fit for my 2008 Nissa Altima. I called to verify and the customer service was so helpful.

Quality Part. Great Price.

I have a 2010 Nissan Altima that had a crack in the catalytic converter. All of my local auto stores wanted $400-$600 for the same part. I was skeptical buying a part online, let alone from a company I had never heard of. The part came to me in two days and it was perfect. Ive recommended all of my friends and family to this company.

First time buyer, Definitely happy

Ahmed

I must say, it was the reviews I read on this website that convinced me to purchase and go for it. I, like many others, was being quoted for around $500-900. Which is ridiculous. This website saved me from the ridiculous cost. I got it installed for $150 at my local dealer. Which is fine, but had to get it done. I want to thank all the people that have left reviews on this site which initiated the purchase. And for that, I am leaving a positive review as well. It fitted exactly on my car. And I want to thank 1A Auto for their splendid service and price.

Highly Recommended!

John

Great price, fast shipping and it was exactly as advertised. I will return to 1a auto for future parts.

Works!!

Took a few visits to the mechanic to find out I had to replace the catalytic converter. Wasnt easy finding the piece on my own to save money but thanks to this site it was a smooth purchase. Car sounds great and feels better!

Good parts

The parts I have received that a1autoparts was good parts also came very fast when they say they was going to come I will recommend people to order from a 1 Auto Parts pretty reasonable price that you can afford they save me a lot of money thank you A 1 Auto Parts

Like a new car!

I installed this manifold/catalytic converter unit in my 2009 Nissan Altima 2.5 S Sedan. I used a portable MAP gas torch to heat the bolts on the down pipe before breaking them free. Everything came apart and went together smoothly. No more check engine light, no more exhaust smell and mileage increased!

Surprised again by the quality and prices

JARED

This was my second time ordering from 1A and I have nothing, but great things to say about them. I read reviews on a lot of similar priced manifolds and none of them compare to the reviews for this unit. It looks identical to stock. I noticed the gaskets are exactly the same and so I opted to use them. So far I've put on 110 trouble free and quiet miles and my gas mileage has improved and throttle response has also improved. Save yourself the money and hassle and buy this one over higher priced units that don't fit with the heat shield. This bolted up in about 1 and a half hours.

Time

LARRY

I ordered and received the next day as scheduled. I installed it today and as with everyone else, the wholes did not line up with the top heat shield. Only able to get 2 bolts out of 5. the others were not even close to alignment. Other than that, I installed it and so far so good. If I do not update this later on down the road, it means all is well. After about 6 months are so, if all is well. I will put 5 stars. I installed it on 5/26/2021

Working so far

Mitch

This manifold fit well and had everything that was needed to replace the old cracked one was in the kit. Quality was ok but not as great as the oem one that I took off. No codes or issues after installation. Car started right up and has been running fine for a few weeks now. Went with 1A as Ive had good luck with customer service in the past.

Would recommend

Justin

Quality seems pretty good. The heat shield holes don't exactly line up...but I've read that for every non-oem manifold; it didn't cause much of an issue. Came with all the hardware and most importantly the support bracket; mine was broken and some other manifolds don't include it! Thanks 1A Auto!

Fits well. Works well.

Samuel

Car is back to quiet again after replacing old one with crack above converter. As of date of this rating, 100miles on it and no cel on. So far so good

Christopher

Good fit.

Great

catalytic Converter

MIKE

Fit well, got through emissions. Welds looked good. Price was good for a quality cat.

Very happy

barry

Fits like it should fast delivery very happy with this company

Exudes Adequacy

Donald

Based on the quality of the part, I would not be surprised if it fails within the next few years. For an affordable replacement part, some aspects weren't great, but also weren't unexpected, and I didn't take off stars: - Sloppy welds with lots of spatter on the collectors - Mounting points for heat shields not quite lining up - Lower hanger required some bending to fit correctly However, there are also some major red flags. - Giant dent in one of the collector tubes from the tube bending process, creating a constriction for exhaust flow. Again, this is from the factory's tube bending process, not from shipping. You can even see the dent in the stock photos here if you look really closely. - Another collector tube was covered in gauges, as if it had been ground in some spots. - While the OEM manifold uses welded nuts to capture the heat shield screws, this unit uses riveted-in nuts, which start spinning when applying the correct torque to fasten the heat shields on. I had to use Lokti

Thank You!

Keith

Exactly as stated, received promptly. It is now installed and is working fine.

Great Price, Great Quality

Cynthia

Great part at a great price. Saved hundreds over what the mechanic wanted.

Holly

Great price fast shipping

Exhaust manifold replacement

Megan

Fit well. Good price. The heat shield holes were misaligned though. Only could thread 3/6 I believe. Still holds well.

Very impressed. Most importantly, it was a perfect fit.

jerry

Arrived on time and it was a perfect fit

Customer Q&A

Does a O2 sensor come with the kit?

July 10, 2017

Theo M

No it did not.

July 10, 2017

Tiffany G

The kit I received had no O2 sensor , just used my old sensor worked great ,

July 11, 2017

Randy S

This kit does not come with an oxygen sensor.

July 11, 2017

Tim K

No, but they had (may still have) kits with the censors.

April 19, 2019

T A

Then which one would fit a 2008 nissan hybrid then???

January 6, 2019

Devin E

Currently we do not carry this part for your vehicle. We're always updating our inventory so please check back soon! If you have any other questions, let us know.

January 6, 2019

T I

do the mounting holes align with stock heat shields?

September 24, 2019

Jon B

This part is built to the same specs of the OE part and will align with stock heat shields. Thank you for the inquiry!

September 24, 2019

Andra M

Will this fit 2013 Nissan Altima SV 2.5?

January 30, 2021

Carey N

This is not the correct part for your vehicle, but we may carry the one you need. The part 1AEEM00841 will be correct for your 2013 Altima 2.5 as long as your vehicle has federal emissions and is a 4 door model. If you have California emissions or a coupe, it will not be compatible.

January 30, 2021

Curtis L

Do you have front manifold California emission. For 2009 Nissan Altima s 2.5l ????

February 23, 2021

Ramon C

This is not the correct part for your vehicle, but we do carry the one you need. The correct part number is 1AEEM00824.

February 24, 2021

Emma F

Will this fit 2007 2.5sl 4 cylinder california registered?

March 29, 2021

Lindsey G

Due to CARB emission laws, we are prohibited from shipping catalytic converters to the state of California.

March 30, 2021

T I

Do this fit a 2010 Nissan Altima 2.5 coupe?

October 25, 2021

Khalil B

Hello yes as long as this isn't for California emissions.

October 25, 2021

Ricale A

Will this pass emissions for Arizona?

November 9, 2021

Pedro C

Yes, this will pass for emissions in Arizona.

November 9, 2021

Emma F

Is this legit ?

December 5, 2021

John D

Yes, it is indeed legit. Ordered this part back in April of 2020 and received it less than a week later.

December 6, 2021

Billy H

Ive bought many parts from 1a. They are good quality and deliver pretty quickly on the east coast. As well they offer kits with everything you need and great prices.

December 10, 2021

Alexis S