Product Description
MOPAR 68359639AC LOWER RADIATOR HOSE FOR 19-23 RAM 3500/4500/5500 WITH 6.7L CUMMINS ENGINE
Maintain proper engine cooling performance and protect your heavy-duty Cummins diesel engine with the genuine Mopar 68359639AC Lower Radiator Hose for 2019-2023 Ram 3500, 4500, and 5500 trucks equipped with the 6.7L Cummins turbo diesel engine and Aisin AS69RC transmission. Engineered to OEM specifications, this factory lower radiator hose delivers reliable coolant circulation, long-lasting durability, and precise fitment for demanding towing and commercial applications.
The lower radiator hose plays a critical role in your truck’s cooling system by routing coolant between the radiator and engine, helping maintain optimal operating temperatures under heavy load conditions. Constructed from high-quality heat-resistant rubber materials, the Mopar 68359639AC hose is designed to withstand high coolant pressure, extreme temperature cycles, vibration, and exposure to diesel engine fluids.
Unlike low-quality aftermarket alternatives, this genuine Mopar radiator outlet hose is engineered specifically for Ram HD cooling systems, ensuring leak-free installation, proper hose routing, and dependable long-term performance. Replacing worn, swollen, cracked, or leaking radiator hoses helps prevent overheating, coolant loss, and expensive engine damage.
This OEM lower radiator hose supersedes previous Mopar part number 68359639AB and is commonly used on High Output 6.7L Cummins applications equipped with the heavy-duty Aisin transmission.
FAQ
What does the lower radiator hose do?
The lower radiator hose circulates coolant from the radiator back into the engine, helping regulate operating temperature and cooling system performance.
Is this a genuine Mopar OEM hose?
Yes. The 68359639AC is a genuine OEM Mopar cooling system component designed specifically for Ram HD diesel applications.
What are common signs of a failing radiator hose?
Cracking, swelling, coolant leaks, overheating, soft hose spots, or visible deterioration are common indicators that replacement is needed.
Does this fit all 6.7L Cummins trucks?
No. This hose is specifically designed for select 2019-2023 Ram 3500/4500/5500 models equipped with the 6.7L Cummins and Aisin AS69RC transmission.
Is installation direct-fit?
Yes. This OEM hose is engineered for direct replacement installation using factory mounting locations and cooling system connections.
Vehicle Fitment
- 2019 Ram 3500 6.7L Cummins Diesel
- 2020 Ram 3500 6.7L Cummins Diesel
- 2021 Ram 3500 6.7L Cummins Diesel
- 2022 Ram 3500 6.7L Cummins Diesel
- 2023 Ram 3500 6.7L Cummins Diesel
- 2019 Ram 4500 6.7L Cummins Diesel
- 2020 Ram 4500 6.7L Cummins Diesel
- 2021 Ram 4500 6.7L Cummins Diesel
- 2022 Ram 4500 6.7L Cummins Diesel
- 2023 Ram 4500 6.7L Cummins Diesel
- 2019 Ram 5500 6.7L Cummins Diesel
- 2020 Ram 5500 6.7L Cummins Diesel
- 2021 Ram 5500 6.7L Cummins Diesel
- 2022 Ram 5500 6.7L Cummins Diesel
- 2023 Ram 5500 6.7L Cummins Diesel
Fits Select Trims Including:
Tradesman, Big Horn, Lone Star, Laramie, Limited, Limited Longhorn, Chassis Cab Models
Specifications for Mopar 68359639AC
| Category | Details |
|---|---|
| Part Number | 68359639AC |
| Brand | Mopar (OEM) |
| Product Type | Lower Radiator Hose / Radiator Outlet Hose |
| Engine Compatibility | 6.7L I6 Cummins Turbo Diesel |
| Transmission Compatibility | Aisin AS69RC 6-Speed Automatic Transmission |
| Vehicle Fitment | 2019-2023 Ram 3500/4500/5500 |
| Function | Transfers coolant between radiator and engine for proper cooling system circulation |
| Installation Type | Direct OEM Replacement |
| Construction | High-Temperature Reinforced Rubber Hose |
| Cooling System Position | Lower Radiator Outlet |
| Replaces Part Numbers | 68359639AB |
| UPC | Not Available |
| GTIN | Not Available |
| Shipping Weight | Approx. 3 lbs |
| Shipping Dimensions | Approx. 16" x 6" x 5" |
| Shipping | Standard ground shipping available |
| Operating Benefits | Maintains coolant flow, helps prevent overheating, resists cracking and swelling, supports heavy-duty towing and commercial operation |
| Prop 65 | WARNING: Cancer and reproductive harm – www.P65Warnings.ca.gov |
| Condition | New |
