This page lists 28 cooling system parts for the 2020 Freightliner B2, across 7 part types, covering all 4 engine options (5.1L L4 DIESEL Turbocharged, 6.7L L6 DIESEL Turbocharged, 6.7L L6 Turbocharged and 8.0L V8 Turbocharged). Every part shows its brand, manufacturer part number and fitment notes.
The cooling system system on the 2020 Freightliner B2 keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. The largest groups are Coolant / Antifreeze (12 parts), Radiator Hose (5 parts) and Radiator (4 parts). The other 4 part types cover the remaining 7 parts.
The 2020 Freightliner B2 was sold with 4 engines. 15 parts fit every engine; the other 13 are engine-specific. Each part shows which engine(s) it fits.
11 brands supply cooling system parts for the 2020 Freightliner B2, led by PRESTONE (7 parts), GATES (7 parts) and VALVOLINE (3 parts), plus 8 more brands. Quality grades include Heavy Duty, Economy and Standard Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2020 Freightliner B2. 3 parts have it, including PRESTONE AF3100 (Coolant / Antifreeze) and VALVOLINE ZXG051 (Coolant / Antifreeze). Each part number opens a page with every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Fits: all 2020 B2 engines | AF3055 | 🇺🇸 US 🇨🇦 CA | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: all 2020 B2 engines | AF3100 | 🇺🇸 US 🇨🇦 CA | Prime Yellow - All VehiclesExtended Life | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 5.1L L4 DIESEL Turbocharged, 6.7L L6 DIESEL Turbocharged, 6.7L L6 Turbocharged | ZXG051 | 🇺🇸 US 🇨🇦 CA | G05 Yellow1 Gallon | View on Amazon |
| PEAK Fits: 6.7L L6 DIESEL Turbocharged | FCA1GAL | 🇺🇸 US 🇨🇦 CA | Fleet Charge1 Gallon | View on Amazon |
| PEAK Fits: 6.7L L6 DIESEL Turbocharged | FXA1GAL | 🇺🇸 US 🇨🇦 CA | Final Charge Global1 Gallon | View on Amazon |
| PRESTONE Fits: all 2020 B2 engines | AFC10000 | 🇺🇸 US 🇨🇦 CA | Command ESi PrechargedPurple | View on Amazon |
| PRESTONE Fits: all 2020 B2 engines | AFC13000 | 🇺🇸 US 🇨🇦 CA | Command COR-Guard Nitrite Free-Noat Extended Life CoolantRed | View on Amazon |
| PRESTONE Fits: all 2020 B2 engines | AFC12100 | 🇺🇸 US 🇨🇦 CA | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
| VALVOLINE Fits: all 2020 B2 engines | 846439 | 🇺🇸 US 🇨🇦 CA | HD Nitrite Free Extended Life Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: all 2020 B2 engines | AF2100 | 🇺🇸 US 🇨🇦 CA | All Vehicles10yr/300k mi | View on Amazon |
| PRESTONE Fits: all 2020 B2 engines | AFMAX | 🇺🇸 US 🇨🇦 CA | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: all 2020 B2 engines | 861399 | 🇺🇸 US 🇨🇦 CA | G40 Pink1 Gallon | View on Amazon |
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.
12 Coolant / Antifreeze parts are listed for the 2020 Freightliner B2, from PRESTONE, VALVOLINE and PEAK. PRESTONE AF3100 carries the "Popular" badge. 9 parts fit every engine; the other 3 are engine-specific.
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 7 options from PRESTONE, VALVOLINE and PEAK — rated for severe service. VALVOLINE ZXG051 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.
Coolant Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WIX Fits: 6.7L L6 DIESEL Turbocharged, 6.7L L6 Turbocharged | 24070 | 🇺🇸 US 🇨🇦 CA | Height: 5.214 InCoolant Spin-On Filter | View on Amazon |
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.
One part is listed for the 2020 Freightliner B2 — WIX 24070.
Intercooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: all 2020 B2 engines | 2711594 | 🇺🇸 US 🇨🇦 CA | with Low Horsepowerwith Original Equipment (OE) # TXE1030481C | View on Amazon |
This table covers the intercoolers that cool turbo or supercharger charge air.
One part is listed for the 2020 Freightliner B2 — GPD 2711594.
Intercooler Air Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 6.7L L6 DIESEL Turbocharged, 6.7L L6 Turbocharged | 26200 | 🇺🇸 US 🇨🇦 CA | Turbocharger Hose (Ring-Retained)Straight Hose | View on Amazon |
| GATES Fits: 6.7L L6 DIESEL Turbocharged, 6.7L L6 Turbocharged | 26201 | 🇺🇸 US 🇨🇦 CA | Turbocharger Hose (Ring-Retained)Straight Hose | View on Amazon |
This table covers the Intercooler Air Hose pipes.
GATES supplies both parts for the 2020 Freightliner B2.
Listed part numbers: GATES 26200 and GATES 26201.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: all 2020 B2 engines | 9282673 | 🇺🇸 US 🇨🇦 CA | with Original Equipment (OE) # TXE1004016Awith High Horsepower | View on Amazon |
| GPD Fits: all 2020 B2 engines | 9282674 | 🇺🇸 US 🇨🇦 CA | with Low Horsepowerwith Original Equipment (OE) # TXE1004016A | View on Amazon |
Premium (All Aluminum Construction)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LILAND GLOBAL Fits: all 2020 B2 engines | 2001019AA | 🇺🇸 US 🇨🇦 CA | All Aluminum | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SPECTRA PREMIUM Fits: all 2020 B2 engines | 20011778P | 🇺🇸 US 🇨🇦 CA | Aluminum Core with Plastic Tanks | View on Amazon |
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.
4 Radiator parts are listed for the 2020 Freightliner B2, from GPD, LILAND GLOBAL and SPECTRA PREMIUM. All of them fit every engine offered in the 2020 B2.
Economy: 2 parts, from GPD. A representative part number is GPD 9282673.
In the Premium (All Aluminum Construction) grade, LILAND GLOBAL supplies 1 part: a step above OE specification in materials, tolerances or warranty terms. A representative part number is LILAND GLOBAL 2001019AA.
The Standard Replacement section: 1 option from SPECTRA PREMIUM. SPECTRA PREMIUM 20011778P is listed in this group.
Part numbers include GPD 9282673, GPD 9282674 and LILAND GLOBAL 2001019AA, among others listed above.
Radiator Hose
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 6.7L L6 DIESEL Turbocharged, 6.7L L6 Turbocharged | 52168 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
Universal Hose (Straight, Bulk)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 6.7L L6 DIESEL Turbocharged, 6.7L L6 Turbocharged | 24232 | 🇺🇸 US 🇨🇦 CA | Straight (Heavy-Duty 2-Ply)2" (60 psi) | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 5.1L L4 DIESEL Turbocharged | 20007S | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| GATES Fits: 5.1L L4 DIESEL Turbocharged | 20206 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| GATES Fits: 5.1L L4 DIESEL Turbocharged | 52114 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
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.
5 Radiator Hose parts for the 2020 Freightliner B2 come from 2 brands — GATES and ACDELCO.
Standard Replacement: 1 part, from GATES. A representative part number is GATES 52168.
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 24232.
3 further parts sit outside the graded sections, with the same engine-level match.
This group includes GATES 52168, GATES 24232 and ACDELCO 20007S and the remaining parts above.
Thermostat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT Fits: all 2020 B2 engines | TH713082J | 🇺🇸 US 🇨🇦 CA | PerformanceIncludes 1 Rubber Gasket | View on Amazon |
| GATES Fits: 6.7L L6 DIESEL Turbocharged, 6.7L L6 Turbocharged | 33915 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| MOTORAD Fits: 6.7L L6 DIESEL Turbocharged, 6.7L L6 Turbocharged | 923192 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
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.
3 Thermostat parts for the 2020 Freightliner B2 come from 3 brands — CALORSTAT, GATES and MOTORAD. 1 part fits every engine; the other 2 are engine-specific.
This group includes CALORSTAT TH713082J, GATES 33915 and MOTORAD 923192.
Buying Cooling System Parts for a 2020 Freightliner B2
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Match the engine first. Some cooling system parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Coolant / Antifreeze and Radiator Hose .
Frequently Asked Questions
How many cooling system parts fit the 2020 Freightliner B2?
Our catalog currently lists 28 cooling system parts for the 2020 Freightliner B2 across 7 subcategories and 11 brands, covering all 4 engine options (5.1L L4 DIESEL Turbocharged, 6.7L L6 DIESEL Turbocharged, 6.7L L6 Turbocharged and 8.0L V8 Turbocharged). Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 2020 Freightliner B2 engines?
Some do. 15 parts fit every engine; the other 13 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of cooling system problems on a 2020 Freightliner B2?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2020 Freightliner B2 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2020 Freightliner B2?
First match the engine — each row shows which engine(s) the part fits. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2020 Freightliner B2
Cooling System Parts for Other Freightliner B2 Years
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