Spectra Premium CU1693 Radiator, with EOC and TOC, Compatible With Chevrolet and GMC
Condition: Used - Very Good
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This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 1 left in stock, order soon!
Arrives
Friday, Oct 23
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Features
- Fit Type: Vehicle Specific
- Maximum cooling efficiency
- Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium radiators meet or exceed the performance of the original equipment radiators they replace; that extends to all components, including engine and transmission
- Engineered to last and sodium free
Description
Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium radiators meet or exceed the performance of the original equipment radiators they replace. That extends to all components, including engine and transmission. The complete radiator offers maximum cooling efficiency. No modifications required for proper fit. These units are engineered to last and a perfect fit guarantee. Height 34 In, width 17-1/4 In, Thickness 1-1/4 In. Inlet Header 18-1/2 In. x 3-3/16 In. Outlet Header 18-3/4 In. x 3-3/16 In. Inlet 1-1/4 In. Outlet 1-9/16 In.
Manufacturer: Spectra Premium
Brand: Spectra Premium
Item Weight: 13 pounds
Product Dimensions: 43.11 x 20.08 x 6.69 inches
Item model number: CU1693
Manufacturer Part Number: CU1693
OEM Part Number: 52481442; 20759; 52465839; 20734; 52467219; 52465838; 52465840; 52467218; 52470422; 52467235; 52465841; 20753; 42465841; 52470420; 52469470; 52477782; 52491626; 52469467; 52469673; 52481440; 89019179; 52467234; 52467236; 20744; 52458208; 52469433; 52470421; 89019344
Date First Available: October 10, 2007
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Oct 23
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I've had this radiator installed in my vehicle for about 6 months and have had no issues with it. Usually, people don't want to use aftermarket parts for their vehicle, but since they are cheaper, they are the better option. Use the vehicle fit checker through Amazon, and 99% of the time, the part will fit. In my case, it fit perfectly, the quality seems great, aligned correctly and so far has been durable. Installation is common sense: remove the original radiator, and install in the reverse of removal process. I went to YouTube and found several videos of how to replace this radiator. It took me about 2 hrs, but I did take a lot of breaks. Will update if there is anything remarkable about this radiator. So far, it is a great buy.
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Reviewed in the United States on October 23, 2025 by sargent
I tend to overdo the research for items when it comes time to replace/repair. These Amazon reviews have changed the old way of guessing & hoping an online order will suffice. But I still tend to research the researchers reviews...a good way to waste a lot of time. Knowledge is king and one can be further educated by sifting through the reviews. I was comfortable buying this <a href= "https://www.amazon.com/dp/B000C7RZWC/ref=cm_cr_ryp_prd_ttl_sol_0">Spectra Premium CU1693 radiator</a> for my 1999 C1500 Suburban 2WD and confident that it was the proper radiator to fit my application. First noticed my coolant overflow tank on the passenger side firewall under the hood would not hold coolant. Checked to make sure the plastic tank had not developed a crack in a seam or a hole...no such luck. I had already done the 5.7's famous intake gasket replacement as well as the factory "quick-connect" that tends to go bad. So my trusty 'Burb's radiator had begun to leak a small spot on my driveway. Left front corner of the vehicle...it was kinda hard to detect exactly where the coolant was coming from but with my well-reviewed LED super bright hand held spot light, I was able to see the green coolant seeping from a very small hairline crack in the left (driver's side) plastic tank about 2 inches below the top cooler fitting. Looks like a big job but it's not really. I'm no pro but I am thorough and I tend to help friends and family that are convinced they cannot pull off mechanical tasks such as this for whatever reason. I am still invited to family beach gatherings each summer and I still have a friend or two left so I must be doing something right. Only thing I could add to the already good reviews is to grab a can of PB Blaster or similar spray lubricant (Kroil is the best but not always easy to lay your hands on at common parts houses). Squirt around the fittings for the oil coolers lines and the auto transmission cooler fittings...top & bottom, a day or two before doing the rad replacement. You can install this radiator from the top mostly but I went underneath to remove the lower radiator shroud so I could clean everything out really well and do a little inspecting in the area while the radiator was out of the vehicle. On my almost 20 year old 'Burban, there are 2 lower shroud screws in the center portion of the shroud that had rusted to the small clips pretty badly. A squirt here on these 2 screws may help get these out easier but they may be <i>rusticularly</i> welded (new word for your word of the day, Bill O'Reilly...use that if you like). If they're like mine, you will have to use a little muscle to snap the screws and replace with new ones. No prob...the handy dandy "HELP" rack at your local parts place has clips and screws if you don't have a collection in your coffee cans on the garage shelf. Or simple nut/bolt with washers will suffice or even a couple plastic ties cinched up tight will hold that section as long as you have the other screws/clips in place. My search for radiators included the text (No Oil Cooler Fittings) and that threw me off. But be assured, this Spectra Premium CU1693 rad DOES have fittings for both oil & trans and they are located precisely where all four lines will connect. As noted in other reviews, there are adapters included, if your application requires them. Support your lines while applying force to loosen or tighten. New clamps are not expensive if you don't reuse the old ones. If changing these, be sure to position the hex head/screw slot on these clamps in a convenient position to get at 'em in the future. Easy peasy...now I am once again cool on my stool with my knees in the breeze.
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Reviewed in the United States on April 17, 2017 by The Truckist
Bought to replace a clogged up original radiator for my 99 Suburban K1500. The original with the rest of the entire coolant system had suffered from the "red" coolant breaking down. After working on replacing the rest of the coolant lines, jackets & water pump the radiator also needed replacing. Ive used Spectra brand (same or similar to others, just a name) for my other 3 vehicles without fail & this proved to be nothing less. There was some difficulties with the adaptors but I didnt need them as my version of cooler lines for the oil & transmission were a direct fit. I only needed to use the seals, unfortunately mine only came with 2 seals making me have to use plumbers thread tape for the transmission lines. So far coupled with an almost entirely new coolant system has proven itself well.
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Reviewed in the United States on December 25, 2018 by Johnathan DeWitt
The part arrived in good quality and was handled properly in shipping. The install took about 1 hour from start to finish. The instructions that are given are minimal. Unit shipped with adapters in the oil and transmission line connections, took a few minutes to realize these parts needed to be removed. It would have been nice if that was in the 1 sheet instructions they provided. Product has been installed and running good for a few months now. If you need a radiator, this is a good buy!
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Reviewed in the United States on November 1, 2013 by Jeremy
Radiator installed like a dream once the installer (me) realized that the adapters for the oil lines were NOT needed. They looked close to what it needed, but the lines wouldn't start. Only after removing one so I could go find the "Correct" ones did I realize that the oil lines do not need the included adapters, but the transmission cooling lines did. Everything was included that was needed, but I would recommend getting a set of hose clamps as the overflow fitting is just a hair smaller than the original and the original clamp didn't fit. Other than that, no other issues were noted. On a plus side, the o-rings from the unused adapters fit perfectly on the original lines do that was an unneeded purchase. The only other thing you should need to install besides hose clamps is a radiator cap. Seems identical to original otherwise.
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Reviewed in the United States on October 19, 2016 by Matt B.
Bought in april 2019 and installed fall of 2019. Has been slowly leaking since January 2021 and now drops half the coolant overnight forcing me to replace so I figured I'd go back and review. Leaking from where the tank meets the core halfway down so its clearly a manufacturing issue. This is on my personal truck that sees maybe 6-7000 miles a year so its not had a lot of hard miles. I am 45 years old and have been working on my vehicles, building race cars, and have done a classic boat restoration so I'm not someone who just attempted radiator swap to save some money. I pay special attention to every detail as the last call I want to make is for a ride from the side of a road. I have had good luck in the past with spectra radiators but that was clearly a different time back before everything was farmed out to china. I have had similar issues with OEM parts lately which makes me wonder if its time to buy into the disposable car payment every month. Just really sad
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Reviewed in the United States on June 24, 2021 by Matthew Valento
Installed in a 98 Chevy Tahoe 5.7 and So far so good, been in about 2 months now and everything working great as it should. I've had good experiences with spectra parts in the past so they didn't disappoint. Came with fittings for install, I didn't need 2 of them. It came packaged well and undamaged, looked good out of the box, all nice fit and finish. Definitely recommend if you're in the market for a radiator. This unit also has connections for oil and transmission cooler.
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Reviewed in the United States on January 9, 2021 by Anthony S
Takes a little time but it fits perfectly. No leaks and keeps my engine cool even in Texas heat. Soo much better than my old 25 year old radiator.
Reviewed in the United States on September 21, 2024 by Robert Bachman