Click to zoom in
Fabricated Aluminum Coolant Reservoir Built to Outlast the Factory Plastic Tank on 2019-2024 Ram 6.7L Cummins
The Fleece Performance FPE-CUMM-CLNT-TNK-1924 is a direct-fit replacement aluminum coolant tank engineered specifically for 2019-2024 Ram 2500 and Ram 3500 trucks equipped with the 6.7L Cummins diesel engine. The factory plastic coolant reservoir on these trucks is a known failure point, prone to cracking at the seams and welds under the thermal cycling and coolant pressure experienced by the Cummins 6.7L in daily towing and high-load applications. The FPE-CUMM-CLNT-TNK-1924 replaces the factory plastic tank with a precision TIG-welded aluminum tank powder coated in gloss black, engineered to match the factory mounting locations, factory hose routing, and factory overflow fitting positions for a clean, no-modification swap. Fleece builds this tank to handle both stock and performance applications, making it a practical upgrade for any Ram diesel owner who wants to eliminate a future coolant leak before it becomes a roadside problem.
Key Features
- Direct-fit for 2019-2024 Ram 2500 and Ram 3500 with 6.7L Cummins diesel
- TIG-welded aluminum construction eliminates the cracking failure mode of the factory plastic tank
- Gloss black powder coat finish for a clean, factory-like appearance under the hood
- Factory mounting locations and hose port positions preserved for no-modification installation
- Suitable for stock and performance builds including tow-tuned and high-idle applications
- Made in the USA by Fleece Performance Engineering
- Direct replacement for the FPE-CUMM-CLNT-TNK-1924 application
Vehicle Fitment
| Year Range | Make | Model |
|---|---|---|
| 2019-2024 | Ram | 2500 (6.7L Cummins) |
| 2019-2024 | Ram | 3500 (6.7L Cummins) |
Specifications
| Detail | Value |
|---|---|
| Part Number | FPE-CUMM-CLNT-TNK-1924 |
| Brand | Fleece Performance Engineering |
| Material | TIG-Welded Aluminum |
| Finish | Gloss Black Powder Coat |
| Engine | 6.7L Cummins Diesel |
| Application | 2019-2024 Ram 2500/3500 |
| Installation Type | Direct Replacement (Factory Mounting Points) |
| Country of Origin | USA |
| Warranty | Limited Manufacturer Warranty |
| UPC | N/A |
What's Included
- 1 x FPE-CUMM-CLNT-TNK-1924 aluminum coolant tank assembly
- All required hardware for direct-fit installation
About Fleece Performance Engineering
Fleece Performance Engineering is a Mooresville, Indiana-based manufacturer specializing in diesel performance products for Cummins, Duramax, and Power Stroke applications. Fleece produces fuel system upgrades, turbocharger kits, coolant system components, and fabricated aluminum replacement parts used in heavy-duty towing, diesel motorsport, and high-mileage fleet applications. The FPE-CUMM-CLNT-TNK-1924 aluminum coolant tank is part of Fleece's factory-replacement line, designed to correct known OEM weaknesses in the Ram diesel cooling system with domestically manufactured aluminum construction.
Frequently Asked Questions
What is the Fleece FPE-CUMM-CLNT-TNK-1924?The Fleece Performance FPE-CUMM-CLNT-TNK-1924 is a direct-fit TIG-welded aluminum replacement coolant tank for the 2019-2024 Ram 2500 and Ram 3500 with the 6.7L Cummins diesel. It replaces the factory plastic coolant reservoir with a gloss black powder-coated aluminum tank that uses the same mounting points and hose ports as the factory unit.
Why does the factory Ram Cummins coolant tank fail?The factory plastic coolant reservoir on the 2019-2024 Ram 6.7L Cummins is prone to cracking at molded seam lines and attachment points due to repeated thermal cycling between cold start and operating temperature, combined with the internal pressure fluctuations typical of a high-volume diesel cooling system. Coolant leaks from a cracked tank can cause rapid overheating if not caught immediately.
Does the FPE-CUMM-CLNT-TNK-1924 fit both Ram 2500 and Ram 3500?Yes. The FPE-CUMM-CLNT-TNK-1924 is designed for both the Ram 2500 and Ram 3500 equipped with the 6.7L Cummins diesel for model years 2019 through 2024. Both trucks share the same cooling system architecture and factory coolant tank mounting configuration in this generation.
Is the FPE-CUMM-CLNT-TNK-1924 a direct bolt-on?Yes. Fleece designs the FPE-CUMM-CLNT-TNK-1924 to use the same mounting locations and hose port positions as the factory plastic tank. The installation is a direct swap with no cutting, drilling, or bracket fabrication required. A basic hand tool set is sufficient for the job.
Is this compatible with modified Cummins builds?Yes. The FPE-CUMM-CLNT-TNK-1924 aluminum tank is suitable for stock, tow-tuned, and performance-modified 6.7L Cummins applications including high-idle set points, larger radiator upgrades, and increased coolant flow scenarios associated with larger turbocharger or intercooler systems. The aluminum construction handles pressure and thermal cycling better than the factory plastic unit in all use cases.
Does the coolant tank come with hardware?Yes. The FPE-CUMM-CLNT-TNK-1924 ships with all required hardware for installation as a direct replacement. No additional hardware purchases should be necessary for a stock Ram 2500 or 3500 installation.
What warranty does Fleece Performance provide?Fleece Performance backs the FPE-CUMM-CLNT-TNK-1924 with a limited manufacturer warranty covering defects in materials and workmanship. Contact Fleece Performance directly at fleeceperformance.com for current warranty terms and claim procedures.
What is the finish on the FPE-CUMM-CLNT-TNK-1924?The aluminum coolant tank is finished in a gloss black powder coat that provides corrosion resistance and a clean factory-like appearance under the hood. The gloss black finish complements the factory engine bay appearance of the 2019-2024 Ram Cummins without requiring any additional painting or coating.
Installation Instructions
- Allow the engine to cool completely before beginning. Do not open the coolant system on a hot engine.
- Place a drain pan under the lower radiator hose and drain coolant from the system by opening the petcock or lower hose. Retain the coolant if it is still serviceable.
- Disconnect all coolant hoses from the factory plastic coolant tank, labeling each hose for correct reinstallation position.
- Remove the factory tank mounting fasteners and lift the factory plastic tank out of the engine bay.
- Transfer any sensors or fittings from the factory tank to the FPE-CUMM-CLNT-TNK-1924 if not pre-installed. Apply thread sealant where required.
- Position the FPE-CUMM-CLNT-TNK-1924 aluminum tank onto the factory mounting locations and secure with the provided hardware, torquing to specification.
- Reconnect all coolant hoses to the corresponding ports on the aluminum tank and secure with factory or new clamps.
- Refill the cooling system with the correct Cummins-approved coolant mixture. Refer to the factory service manual for capacity and coolant specification.
- Start the engine and allow it to reach operating temperature. Check for leaks at all hose connections and the tank fittings. Top off the coolant level as needed after the thermostat opens.
Coolant Reservoirs
Coolant reservoirs, also called expansion tanks or overflow bottles, maintain a pressurized coolant supply that the radiator draws from as the cooling system cools down after engine-off. A cracked or leaking reservoir causes coolant loss and eventual overheating, while an upgraded billet or aluminum tank improves appearance and durability in performance engine bays.Popular UpgradesAluminum and billet coolant expansion tanks for LS and LT engine swaps and popular domestic performance vehicles are the most popular upgrades, providing a clean look and superior durability compared to factory plastic bottles that crack from heat cycling. Universal inline overflow tanks made from polished aluminum or anodized billet are popular on custom engine bays where the stock location has been eliminated. Direct-fit OEM-style replacement tanks restore coolant system function on high-mileage vehicles where the factory tank has cracked or the cap seat has deteriorated.How do I know if my coolant reser...
View Coolant Reservoirs Products
Cooling
Shop performance cooling parts at Black Ops Auto Works for premium radiators, thermostat housings, thermostats, coolant reservoirs, expansion tanks, radiator hoses, oil coolers, transmission coolers, fans and shrouds, water pumps, and thermal management upgrades for street, track, towing, diesel, and high-horsepower builds. Whether you are trying to control engine temps, improve reliability, or support demanding performance use, this collection is built around proven cooling-system upgrades for serious enthusiasts. Shop Cooling Parts by Category Browse automotive cooling system components across key product categories, including: Radiators Coolant reservoirs and expansion tanks Thermostat housings and thermostats Radiator hose kits and silicone coolant hoses Oil coolers and oil cooler accessories Transmission coolers Coolant bypass kits and coolant filters Fans and shrouds Radiator caps Water pumps Radiator shrouds, radiator stays, and cooling plates Thermal wrap, thermal tape, an...
View Cooling Products
Engine
This engine parts collection covers oil catch cans, thermostats, thermostat housings, radiator components, coolant accessories, engine covers, fuse box covers, cap covers, throttle bodies, supercharger pulleys, idler pulleys, tensioner pulleys, and engine bay dress-up parts for trucks, SUVs, muscle cars, boosted builds, high-horsepower street cars, and performance vehicles that need better reliability, cooling, airflow, oil control, and under-hood styling. The collection is particularly strong for Dodge Challenger, Charger, Durango, Jeep Grand Cherokee Trackhawk, and Ram TRX platforms running 6.2L Hellcat, 6.4L HEMI, and 5.7L HEMI engines, where oil catch can and cooling upgrades address known OEM weaknesses in the PCV and thermal management systems. Import performance platforms including GM LS-based builds, Chevrolet Camaro, and Corvette applications are also represented through Mishimoto, CSF, and ZPE GripTec product lines. Builders who invest in engine bay organization and reliab...
View Engine Products
Fleece Performance
Fleece Performance Engineering has grown from a small Indiana operation into one of the most respected names in high-performance diesel upgrades, with a product catalog built specifically around the Duramax and Cummins common rail diesel platforms that dominate the high-horsepower diesel community. Founded by brothers Brayden and Chase Fleece in a rural west-central Indiana pole barn, the company established itself as a technology leader in common rail injection systems within five years, developing the Cheetah turbocharger line and the TurboBrake electronic exhaust brake that have become standard references for what diesel performance engineering can achieve. Fleece operates from an 18,750-square-foot Brownsburg, Indiana facility capable of in-house design, manufacturing, assembly, and testing, placing them among the high-output diesel specialists who supply race teams and serious street performance builds. This collection covers Fleece Performance's full range of Duramax and Cummi...
View Fleece Performance Products