This page lists 17 cooling system parts for the 2023 Freightliner MT, across 6 part types, covering all 4 engine options (6.0L V8, 6.6L V8, 6.7L L6 DIESEL Turbocharged and ELECTRIC). Every part shows its brand, manufacturer part number and fitment notes.
On the 2023 Freightliner MT, 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. 13 parts of the 17 listed are Coolant / Antifreeze (7 parts), Radiator Hose (4 parts) and Intercooler Air Hose / Pipe (2 parts). The other 3 part types cover the remaining 4 parts.
The 2023 Freightliner MT was sold with 4 engines. 6 parts fit every engine; the other 11 are engine-specific. Each part shows which engine(s) it fits.
4 brands supply cooling system parts for the 2023 Freightliner MT, led by PRESTONE (7 parts), GATES (6 parts) and CONTINENTAL (3 parts), plus 1 more brand. Quality grades include Heavy Duty, Premium and Standard Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2023 Freightliner MT. 2 parts have it, including PRESTONE AF3100 (Coolant / Antifreeze) and PRESTONE AF2100 (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 2023 MT engines | AF3055 | 🇺🇸 US 🇨🇦 CA | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: all 2023 MT engines | AF3100 | 🇺🇸 US 🇨🇦 CA | Prime Yellow - All VehiclesExtended Life | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Fits: all 2023 MT engines | AFC10000 | 🇺🇸 US 🇨🇦 CA | Command ESi PrechargedPurple | View on Amazon |
| PRESTONE Fits: 6.0L V8, 6.6L V8, 6.7L L6 DIESEL Turbocharged | AFC13000 | 🇺🇸 US 🇨🇦 CA | Command COR-Guard Nitrite Free-Noat Extended Life CoolantRed | View on Amazon |
| PRESTONE Fits: all 2023 MT engines | AFC12100 | 🇺🇸 US 🇨🇦 CA | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: all 2023 MT engines | AF2100 | 🇺🇸 US 🇨🇦 CA | All Vehicles10yr/300k mi | View on Amazon |
| PRESTONE Fits: all 2023 MT engines | AFMAX | 🇺🇸 US 🇨🇦 CA | Max Universal1 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.
PRESTONE supplies the 7 Coolant / Antifreeze parts for the 2023 Freightliner MT. PRESTONE AF3100 carries the "Popular" badge. 6 parts fit every engine; the other 1 is 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 3 options from PRESTONE — rated for severe service. PRESTONE AFC10000 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.
Listed part numbers: PRESTONE AF3100, PRESTONE AF3055 and PRESTONE AFC10000, plus the other parts above.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 6.0L V8, 6.7L L6 DIESEL Turbocharged | 2421017 | 🇺🇸 US 🇨🇦 CA | Radiator Surge Overflow Tank Assembly | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
This group shows a single part: GPD 2421017.
Intercooler Air Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Fits: 6.7L L6 DIESEL Turbocharged | 57512 | 🇺🇸 US 🇨🇦 CA | Convoluted Charge Air | View on Amazon |
| GATES Fits: 6.7L L6 DIESEL Turbocharged | 26201 | 🇺🇸 US 🇨🇦 CA | Turbocharger Hose (Ring-Retained)Straight Hose | View on Amazon |
This table covers the Intercooler Air Hose pipes.
2 Intercooler Air Hose / Pipe parts are listed for the 2023 Freightliner MT, from CONTINENTAL and GATES.
Part numbers include CONTINENTAL 57512 and GATES 26201.
Radiator Fan Clutch Bearing Bracket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 6.7L L6 DIESEL Turbocharged | FB1019 | 🇺🇸 US 🇨🇦 CA | Fan Pulley Bracket | View on Amazon |
This table covers the brackets that mount the Radiator Fan Clutch Bearing. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners.
One part is listed for the 2023 Freightliner MT — GATES FB1019.
Radiator Hose
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Fits: 6.7L L6 DIESEL Turbocharged | 60288 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| GATES Fits: 6.7L L6 DIESEL Turbocharged | 52161 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
Universal Hose (Straight, Bulk)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Fits: 6.7L L6 DIESEL Turbocharged | 57032 | 🇺🇸 US 🇨🇦 CA | Heavy Duty Straight | View on Amazon |
| GATES Fits: 6.7L L6 DIESEL Turbocharged | 24232 | 🇺🇸 US 🇨🇦 CA | Straight (Heavy-Duty 2-Ply)2" (60 psi) | 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.
4 Radiator Hose parts for the 2023 Freightliner MT come from 2 brands — CONTINENTAL and GATES.
In the Standard Replacement grade, CONTINENTAL and GATES supply 2 parts: built to original-equipment specification. A representative part number is CONTINENTAL 60288.
In the Universal Hose (Straight, Bulk) grade, CONTINENTAL and GATES supply 2 parts: grouped under the catalog's "Universal Hose (Straight, Bulk)" designation — the notes column spells out what sets them apart. A representative part number is CONTINENTAL 57032.
Part numbers include CONTINENTAL 60288, GATES 52161 and CONTINENTAL 57032, among others listed above.
Thermostat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 6.0L V8 | 34198 | 🇺🇸 US | OE Type | View on Amazon |
| GATES Fits: 6.7L L6 DIESEL Turbocharged | 33915 | 🇺🇸 US 🇨🇦 CA | OE Type | 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.
2 Thermostat parts for the 2023 Freightliner MT come from GATES.
Part numbers include GATES 34198 and GATES 33915.
Buying Cooling System Parts for a 2023 Freightliner MT
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 2023 Freightliner MT?
Our catalog currently lists 17 cooling system parts for the 2023 Freightliner MT across 6 subcategories and 4 brands, covering all 4 engine options (6.0L V8, 6.6L V8, 6.7L L6 DIESEL Turbocharged and ELECTRIC). Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 2023 Freightliner MT engines?
Some do. 6 parts fit every engine; the other 11 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 2023 Freightliner MT?
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 2023 Freightliner MT 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 2023 Freightliner MT?
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 2023 Freightliner MT
Cooling System Parts for Other Freightliner MT Years
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