The best radiator with a transmission cooler depends on your vehicle’s exact fitment and whether it also needs an engine oil cooler. The A-Premium radiator with transmission and engine oil cooling is best for buyers who need both. Its TOC model is better for vehicles that need transmission cooling without an engine oil cooler, while the Autoexact option explicitly lists both cooler connections and all-aluminum construction. Confirm your vehicle’s year, model, engine, and cooler configuration before ordering.
| Product | Best For | Cooler Details Provided |
|---|---|---|
| A-Premium with transmission and engine oil cooler | Vehicles requiring both cooler functions | Transmission and engine oil cooler |
| A-Premium TOC, without EOC | Vehicles needing transmission cooling only | TOC; no EOC |
| COOLYEE CU2423 | Buyers checking a CU2423 replacement | Cooler configuration not specified |
| Autoexact 2370 | Buyers needing TOC and EOC | TOC and EOC |
| DWVO 34-inch radiator | Buyers prioritizing listed core dimensions | Cooler configuration not specified |
A-Premium Radiator With Transmission and Engine Oil Cooler
This 34-inch A-Premium radiator is best for buyers whose original setup requires both a transmission oil cooler and an engine oil cooler. Its listed fitment covers a wide range of Chevrolet and GMC trucks and SUVs, as well as Cadillac Escalade models and the Hummer H2.
Choose this option if your vehicle’s specifications match the extensive year-and-model fitment list and it needs both cooler functions. The key advantage is that the listing explicitly identifies both. Its fitment includes select Silverado, Sierra, Tahoe, Suburban, Yukon, Avalanche, and Escalade applications.
Limitation: The broad fitment list does not identify every engine or cooler variation. Verify the original radiator’s connections and your vehicle’s exact configuration before buying.
A-Premium Radiator With TOC, Without EOC
This A-Premium 34-inch radiator is best for a compatible vehicle that needs a transmission oil cooler (TOC) but does not use an engine oil cooler (EOC). The listing names a wide range of Chevy, GMC, Cadillac, and Hummer applications and provides reference numbers including CU2423 and 8012423.
Choose this model over the version with both coolers when your existing setup has TOC but no EOC. Its vehicle list includes Silverado, Sierra, Tahoe, Suburban, Yukon, Avalanche, Escalade, and Hummer H2 configurations across multiple model years.
Limitation: “W/O EOC” is a critical distinction, not a minor detail. Avoid this radiator if your vehicle requires an engine oil cooler, and confirm the reference number against the original part.
COOLYEE CU2423 Radiator
The COOLYEE CU2423 is best for buyers who are matching a replacement by part number and vehicle details. Its fitment list specifies many engine sizes and model years for vehicles such as the Silverado, Sierra, Tahoe, Yukon, Escalade, and Avalanche.
Choose this option if the CU2423 reference and your vehicle’s year, model, and engine all align. The detailed engine-specific fitment can help narrow down applications more precisely than a model-name-only list.
Limitation: The supplied product information does not state whether the radiator includes a transmission oil cooler or an engine oil cooler. Confirm both connection layout and cooler requirements before ordering.
Autoexact 2370 Radiator With TOC and EOC
This Autoexact 34-inch radiator is best for buyers seeking a listing that explicitly states it has both a transmission oil cooler and an engine oil cooler. The product description also identifies all-aluminum construction, multi-louvered fins, flat-flow B-type tubes, airflow channels, and an anti-corrosion coating.
Its fitment list covers a range of Chevrolet and GMC trucks and SUVs, plus select Cadillac Escalade and Hummer H2 models. Choose it if your vehicle requires TOC and EOC and the listed application matches your exact configuration.
Limitation: The features do not replace a fitment check. Confirm engine, model year, and cooler connections, especially where vehicle applications overlap.
DWVO 34-Inch Core Radiator
The DWVO radiator is best for buyers comparing a 34-inch core replacement for listed Chevy, GMC, Cadillac, and Hummer applications. Its stated core size is 34 by 17.2 inches, and the listing gives several OEM part numbers, including 15841574 and 22840116. It also describes high-density multi-louvered fins.
Choose this option if its dimensions, part numbers, and vehicle application match your original radiator. The provided specifications make core size and reference-number comparison possible.
Limitation: The supplied features do not confirm a transmission cooler or engine oil cooler. Do not assume this radiator meets either requirement without checking the product details and connection layout.
Buying Guide: How to Choose a Radiator With a Transmission Cooler
Does your vehicle need TOC, EOC, or both?
TOC means transmission oil cooler; EOC means engine oil cooler. These are different functions. Compare your original radiator and vehicle specification to determine whether you need a transmission cooler alone or both cooler connections. A listing that says “W/O EOC” is not the right choice for a vehicle requiring an engine oil cooler.
How do you confirm radiator fitment?
Check the model year, make, model, engine, and trim or cooling configuration where applicable. Then compare the replacement’s part number, core dimensions, and cooler connection arrangement with the existing radiator. Vehicle names alone may not distinguish every configuration.
When should you prioritize a part number?
Use a listed reference number, such as CU2423, as one fitment check alongside vehicle details. Part-number matches can help narrow the search, but they should not replace confirmation of cooler setup and dimensions.
What features are useful to compare?
Compare stated core dimensions, cooler configuration, construction, and cooling features. Some listings describe fin or tube designs, while others provide fitment and reference numbers but little construction detail. Treat only listed specifications as confirmed.
Frequently Asked Questions
Can I use a radiator without a transmission cooler?
Only if your vehicle’s cooling system does not require a radiator-integrated transmission cooler or uses a separate compatible cooling arrangement. Confirm the original setup before replacing the radiator.
What does TOC mean on a radiator listing?
TOC means transmission oil cooler. It identifies a transmission-cooling function in the radiator listing.
What does “W/O EOC” mean?
“W/O EOC” means without an engine oil cooler. It does not indicate that the radiator lacks a transmission oil cooler when the listing separately specifies TOC.
Are all 34-inch radiators interchangeable?
No. Core size alone does not confirm vehicle fit. Cooler connections, part numbers, engine, model year, and other fitment details also matter.
Which listed radiator explicitly includes both coolers?
The A-Premium radiator described as having transmission and engine oil coolers and the Autoexact 2370 listing explicitly identify both TOC and EOC.