A 37-row stacked-plate cooler is the clearest match for owners upgrading a 1999–2003 Ford 7.3L Powerstroke toward a 6.0-style cooling setup. The Mishimoto option specifies a temperature reduction and core-volume increase, while other kits bundle hoses and clamps. A Dorman replacement cooler serves a different purpose: replacing an original cooler on specified Ford models, not necessarily providing a 7.3-to-6.0 upgrade. Check exact vehicle fitment and line connections before buying.
| Product | Best suited for | Notable detail |
|---|---|---|
| 37 Row Kit With Hoses | 1999–2003 F-250/F-350 and select Excursion owners | 37-row stacked-plate cooler and installation supplies |
| Kartiyer MMTC-F2D-99SL | 7.3L owners seeking included hardware | Hose and clamps included |
| Mishimoto MMTC-F2D-99SL | Buyers comparing stated cooling figures | 37 rows; stated core-volume and temperature figures |
| RARAYC 37-Row Cooler | Owners of listed Super Duty models | 37-row design with hoses and clamps |
| Dorman 918-216 | Specified Ford applications needing replacement | Direct-replacement design |
37 Row Transmission Cooler Kit With Hoses
This kit is listed for 1999–2003 Ford F-250 and F-350 Super Duty trucks and 2000–2003 Ford Excursions equipped with the 7.3L Powerstroke. It includes a 37-row stacked-plate cooler, auxiliary hoses, and clamps. The product description says the expanded core is intended to help lower fluid temperatures during towing, hauling, and other high-load use.
Best for: Owners of the listed vehicles who want a cooler kit with basic hose and clamp hardware included. It was selected for its explicit 7.3L fitment and complete-kit description. Early 1999 models may need line-size adapters. Measure hose routing before cutting, secure clamps, and check fluid level after installation.
Kartiyer MMTC-F2D-99SL Transmission Cooler
The Kartiyer cooler is listed for Ford 7.3L Powerstroke models from 1999 through 2003. Its stated contents include a cooler hose and hose clamps. The listing identifies the part number as MMTC-F2D-99SL and also gives the alternate form MMTCF2D99SL.
Best for: Buyers focused on a listed 7.3L application who want hose and clamp hardware included. It was selected because it names the engine and model years directly. The available product details do not specify a row count, temperature reduction, or core-volume increase, so compare those details with your cooling goals before choosing it. Confirm the exact connection arrangement for your truck.
Mishimoto MMTC-F2D-99SL 37-Row Cooler
Mishimoto lists this cooler for 1999–2003 Ford 7.3L Powerstroke applications. Its product information describes a 37-row stacked-plate design, a 265% increase in core volume over the factory 9-row cooler, and one additional quart of fluid capacity. The listing also reports a transmission-fluid temperature reduction of more than 10°F (5.6°C) without compromising fluid pressure.
Best for: Buyers who want stated comparative cooling figures when evaluating a 7.3L upgrade. It was selected for its specific model-year fitment and detailed core specifications. These are manufacturer-provided figures, not a guarantee of the temperature change in every truck. Check whether the package includes the installation parts your setup requires.
RARAYC 37-Row Cooler With Hoses
This 37-row aluminum cooler is listed for 7.3L Powerstroke applications, including 2000–2003 Excursions and 1999–2003 F-250, F-350, F-450, and F-550 Super Duty trucks. The description cites a 265% core-volume increase compared with the stock 9-row cooler and a validated reduction of over 10°F (5.6°C) while maintaining system pressure. Hoses and clamps are listed as included.
Best for: Owners of the listed Ford models who want a 37-row cooler with hose and clamp supplies. It was selected for its broad stated model coverage and quantified design claims. Verify fitment for the exact vehicle and inspect the supplied hose routing requirements before installation; the listing does not detail every possible line variation.
Dorman 918-216 Replacement Cooler
Dorman describes the 918-216 as a direct replacement for the original automatic transmission fluid cooler on specified Ford models. Its stated purpose is to help maintain proper fluid temperature when an original cooler has failed because of heat, corrosion, or damage. The product information does not identify it as a 37-row upgrade or specify 7.3L fitment.
Best for: Buyers whose exact Ford application is confirmed and who need an original-style replacement. It was included as a related cooler option, not as a direct substitute for the 7.3-to-6.0 upgrade kits above. Avoid choosing it for a Powerstroke upgrade unless the vehicle fitment and intended use are verified.
Buying Guide: How To Choose A 7.3L Transmission Cooler
Is a 37-row cooler the right upgrade?
Compare the cooler’s stated row count, core design, and fitment information. The products above describe stacked-plate designs, and some specify a 265% core-volume increase over a factory 9-row cooler. These figures help compare listed designs but do not guarantee identical results in every truck or driving condition.
Will the kit fit a 1999–2003 Powerstroke?
Match the product’s stated model years and vehicle models to your truck. The first kit notes that early 1999 models may need line-size adapters because factory line diameters can vary. Confirm connection sizes and routing before ordering, especially if the truck has non-original components.
Do you need hoses and clamps included?
A kit that includes hoses and clamps can reduce the need to source those listed components separately. Still, check hose length, connection details, and installation instructions. The 37-row kit listing specifically advises measuring line lengths before cutting and checking transmission-fluid level after installation.
Should you choose an upgrade or a replacement cooler?
Choose a 37-row upgrade when your goal is increased cooling capacity and the part is confirmed for your application. Choose a direct-replacement cooler only when its specified vehicle fitment matches and the objective is replacing a failed original cooler. Do not assume that a replacement cooler is an upgrade.
Frequently Asked Questions
What does a 7.3-to-6.0 transmission cooler upgrade mean?
It generally refers to upgrading a 7.3L Powerstroke’s transmission cooling arrangement with a higher-capacity cooler design. Confirm the exact part’s fitment and connections rather than relying on the shorthand description alone.
Which listed cooler includes hoses and clamps?
The 37-row kit, Kartiyer MMTC-F2D-99SL, and RARAYC cooler listings state that hoses and clamps or related hardware are included.
Do all these products confirm 7.3L fitment?
No. Several listings explicitly name 1999–2003 7.3L Powerstroke applications. Dorman describes fitment for select Ford models, so verify its exact application before purchase.
Can a cooler guarantee a specific temperature reduction?
No. Mishimoto and RARAYC provide stated temperature-reduction figures, but actual results can depend on the vehicle and operating conditions. Treat listed figures as product claims, not guaranteed outcomes.