2021 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

11 Coolant / Antifreeze parts are listed for the 2021 Freightliner Cascadia, from PRESTONE, PEAK and VALVOLINE. PRESTONE AF3100 carries the "Popular" badge. All of them fit every engine offered in the 2021 Cascadia.

The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.

In the Economy grade, PRESTONE supplies 1 part: the catalog's value-priced group. A representative part number is PRESTONE AF3100.

The Heavy Duty section lists 6 options from PRESTONE, PEAK and VALVOLINE — rated for severe service. PEAK FCA1GAL is listed in this group.

The Premium section lists 2 options from PRESTONE — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 1 option from VALVOLINE — built to original-equipment specification. VALVOLINE 861399 is listed in this group.

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 are listed for the 2021 Freightliner Cascadia, from DONALDSON and HASTINGS / BALDWIN.

Part numbers include DONALDSON P551008, DONALDSON P550867 and DONALDSON P550866, among others listed above.

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

2 Coolant Hose / Pipe parts are listed for the 2021 Freightliner Cascadia, from DAYCO and GATES.

The Standard Replacement section: 1 option from DAYCO. DAYCO 80244GL is listed in this group.

The Universal Hose (Straight, Bulk) section lists 1 option from GATES — grouped under the catalog's "Universal Hose (Straight, Bulk)" designation — the notes column spells out what sets them apart. GATES 26244 is listed in this group.

Part numbers include DAYCO 80244GL and GATES 26244.

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

3 Coolant Reservoir parts for the 2021 Freightliner Cascadia come from 3 brands — DORMAN, GPD and MAHLE / CLEVITE. Every part fits all 6 engine options (11.9L DIESEL, 11.9L Turbocharged, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more).

This group includes DORMAN 6031316, GPD 2421001 and MAHLE / CLEVITE CRT282000S.

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

One part is listed for the 2021 Freightliner Cascadia — SPECTRA PREMIUM 44011748.

This table covers the Intercooler Air Hose pipes. Read more

3 Intercooler Air Hose / Pipe parts are listed for the 2021 Freightliner Cascadia, from GATES and CONTINENTAL.

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

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 are listed for the 2021 Freightliner Cascadia, from GPD, SPECTRA PREMIUM, AGILITY and 1 other brand. SPECTRA PREMIUM 20011775P carries the "Popular" badge. 5 parts fit every engine; the other 2 are engine-specific.

Economy: 4 parts, from GPD. A representative part number is GPD 9282711.

The Standard Replacement section: 3 options from SPECTRA PREMIUM, AGILITY and OSC. SPECTRA PREMIUM 20011775P is listed in this group.

Part numbers include SPECTRA PREMIUM 20011775P, GPD 9282711 and GPD 9282712, among others listed 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

9 Radiator Hose parts for the 2021 Freightliner Cascadia come from 3 brands — GATES, CONTINENTAL and DAYCO.

Part numbers include CONTINENTAL 61116, DAYCO 70922 and GATES 24047, among others listed above.

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

31 Thermostat parts for the 2021 Freightliner Cascadia come from 3 brands — CALORSTAT, MOTORAD and GATES. The "Popular" part is GATES 34148. They are grouped as Heavy Duty and Standard Replacement, with Standard Replacement the largest group at 15 parts from CALORSTAT and MOTORAD.

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

One part is listed for the 2021 Freightliner Cascadia — 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

This group shows a single part: GATES 44057HD.

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

This group shows a single part: 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

One part is listed for the 2021 Freightliner Cascadia — ELRING 004010.