2020 Freightliner Cascadia Cooling System Parts

This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator. Read more

14 Coolant / Antifreeze parts for the 2020 Freightliner Cascadia come from 3 brands — PRESTONE, VALVOLINE and PEAK. The "Popular" part is PRESTONE AF3100. 10 parts fit every engine; the other 4 are engine-specific.

In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.

The Economy section lists 2 options from PRESTONE and VALVOLINE — the catalog's value-priced group. PRESTONE AF3100 is listed in this group.

In the Heavy Duty grade, PRESTONE, VALVOLINE and PEAK supply 7 parts: rated for severe service. A representative part number is VALVOLINE ZXG051.

In the Premium grade, PRESTONE supplies 2 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.

In the Standard Replacement grade, VALVOLINE supplies 2 parts: built to original-equipment specification. A representative part number is VALVOLINE ZX001.

This table covers the Coolant filters. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for. Read more

4 Coolant Filter parts for the 2020 Freightliner Cascadia come from 2 brands — DONALDSON and HASTINGS / BALDWIN.

This group includes DONALDSON P550866, DONALDSON P551008 and DONALDSON P550867 and the remaining parts above.

This table covers the hard pipes and extra hoses in the coolant circuit. Read more

2 Coolant Hose / Pipe parts for the 2020 Freightliner Cascadia come from 2 brands — DAYCO and GATES.

Standard Replacement: 1 part, from DAYCO. A representative part number is DAYCO 80244GL.

In the Universal Hose (Straight, Bulk) grade, GATES supplies 1 part: grouped under the catalog's "Universal Hose (Straight, Bulk)" designation — the notes column spells out what sets them apart. A representative part number is GATES 26244.

Part numbers include DAYCO 80244GL and GATES 26244.

This table covers the Coolant Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Coolant Level Sensor parts for the 2020 Freightliner Cascadia come from 2 brands — DORMAN and GPD. Every part fits all 5 engine options (11.9L, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 15.6L L6 DIESEL Turbocharged).

This group includes DORMAN 9245205 and GPD 1814798.

This table covers the overflow / expansion tanks that hold extra coolant. Read more

3 Coolant Reservoir parts are listed for the 2020 Freightliner Cascadia, from DORMAN, GPD and MAHLE / CLEVITE. All of them fit every engine offered in the 2020 Cascadia.

Part numbers include DORMAN 6031316, GPD 2421001 and MAHLE / CLEVITE CRT282000S.

This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

One part is listed for the 2020 Freightliner Cascadia — MOTORAD T46.

This table covers the adapters used to pressure-test this cooling system. Read more

2 Cooling System Tester Adapter parts for the 2020 Freightliner Cascadia come from MOTORAD. Every part fits all 5 engine options (11.9L, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 15.6L L6 DIESEL Turbocharged).

Listed part numbers: MOTORAD 3128 and MOTORAD 3127.

This table covers the intercoolers that cool turbo or supercharger charge air. Read more

5 Intercooler parts for the 2020 Freightliner Cascadia come from 2 brands — SPECTRA PREMIUM and GPD. 2 parts fit every engine; the other 3 are engine-specific.

Part numbers include GPD 2711526, GPD 2711525 and SPECTRA PREMIUM 44011727, among others listed above.

This table covers the Intercooler Air Hose pipes. Read more

3 Intercooler Air Hose / Pipe parts for the 2020 Freightliner Cascadia come from 2 brands — GATES and CONTINENTAL.

Listed part numbers: CONTINENTAL 57513, GATES 26203 and GATES 26204.

This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap. Read more

7 Radiator parts for the 2020 Freightliner Cascadia come from 4 brands — GPD, SPECTRA PREMIUM, AGILITY and 1 other brand. The "Popular" part is SPECTRA PREMIUM 20011775P. 5 parts fit every engine; the other 2 are engine-specific.

The Economy section: 4 options from GPD. GPD 9282711 is listed in this group.

Standard Replacement: 3 parts, from SPECTRA PREMIUM, AGILITY and OSC. A representative part number is SPECTRA PREMIUM 20011775P.

Listed part numbers: SPECTRA PREMIUM 20011775P, GPD 9282711 and GPD 9282712, plus the other parts above.

This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

11 Radiator Hose parts are listed for the 2020 Freightliner Cascadia, from GATES, ACDELCO, CONTINENTAL and 1 other brand.

The Standard Replacement section: 2 options from GATES. GATES 52192 is listed in this group.

The Universal Hose (Straight, Bulk) section: 2 options from ACDELCO and GATES. ACDELCO 31064 is listed in this group.

7 ungrouped parts are not assigned to a grade, with the same engine-level match.

This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part. Read more

27 Thermostat parts are listed for the 2020 Freightliner Cascadia, from CALORSTAT, MOTORAD and GATES. GATES 34148 carries the "Popular" badge. Heavy Duty and Standard Replacement are all represented, and Standard Replacement alone accounts for 15 parts.

This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

3 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2020 Freightliner Cascadia come from 2 brands — DAYTON and ELRING.

Part numbers include DAYTON 6745008G, DAYTON 6745003G and ELRING 004030.

This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off. Read more

8 Water Pump parts are listed for the 2020 Freightliner Cascadia, from GMB, FVP, GATES and 1 other brand. GMB 1962230 carries the "Popular" badge.

In the High Volume / Pressure grade, GATES supplies 1 part: grouped under the catalog's "High Volume / Pressure" designation — the notes column spells out what sets them apart. A representative part number is GATES 44057HD.

The Standard Replacement section: 1 option from GMB. GMB 1962360 is listed in this group.

6 ungrouped parts are not assigned to a grade, with the same engine-level match.

This group includes GMB 1962230, GATES 44057HD and GMB 1962360 and the remaining parts above.

This table covers the Water Pump & Fan Clutch assemblies. Read more

One part is listed for the 2020 Freightliner Cascadia — AGILITY 8870002.

This table covers the gaskets between the water pump and the block or housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

This group shows a single part: ELRING 004010.