15 Cooling system parts are listed for the 2023 Freightliner 122SD, in 5 part types, covering the 12.8L L6 DIESEL Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
The cooling system system on the 2023 Freightliner 122SD 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 (6 parts), Radiator Hose (4 parts) and Intercooler (2 parts). The other 2 part types cover the remaining 3 parts.
Every part on this page is matched to the 12.8L L6 DIESEL Turbocharged — the only engine offered in the 2023 Freightliner 122SD.
The most listed brands for 2023 Freightliner 122SD cooling system parts are GATES (4 parts), PRESTONE (3 parts) and PEAK (2 parts), plus 5 more brands. Quality grades include Universal Hose and Standard Replacement.
2 parts on this 2023 Freightliner 122SD page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including PRESTONE AFC13000 (Coolant / Antifreeze) and PRESTONE AFC12100 (Coolant / Antifreeze). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AFC13000 | 🇺🇸 US 🇨🇦 CA | Command COR-Guard Nitrite Free-Noat Extended Life CoolantRed | View on Amazon |
| PRESTONE Popular | AFC12100 | 🇺🇸 US 🇨🇦 CA | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
| PEAK | FCA1GAL | 🇺🇸 US 🇨🇦 CA | Fleet Charge1 Gallon | View on Amazon |
| PEAK | FXA1GAL | 🇺🇸 US 🇨🇦 CA | Final Charge Global1 Gallon | View on Amazon |
| PRESTONE | AFC10000 | 🇺🇸 US 🇨🇦 CA | Command ESi PrechargedPurple | View on Amazon |
| VALVOLINE | ZXED1 | 🇺🇸 US 🇨🇦 CA | HD Extended Life Red1 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.
6 Coolant / Antifreeze parts for the 2023 Freightliner 122SD come from 3 brands — PRESTONE, PEAK and VALVOLINE. The "Popular" part is PRESTONE AFC13000.
Part numbers include PRESTONE AFC13000, PRESTONE AFC12100 and PEAK FCA1GAL, among others listed above.
Intercooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 2711525 | 🇺🇸 US 🇨🇦 CA | with 4 IN Inletwith 4 IN Outlets | View on Amazon |
| SPECTRA PREMIUM | 44011730 | 🇺🇸 US 🇨🇦 CA | with 38.5 IN X 25.875 IN X 2.5 IN Corewith 4 IN Inlet | View on Amazon |
This table covers the intercoolers that cool turbo or supercharger charge air.
2 Intercooler parts for the 2023 Freightliner 122SD come from 2 brands — GPD and SPECTRA PREMIUM.
This group includes GPD 2711525 and SPECTRA PREMIUM 44011730.
Intercooler Air Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL | 57513 | 🇺🇸 US 🇨🇦 CA | Convoluted Charge Air | View on Amazon |
| GATES | 26203 | 🇺🇸 US 🇨🇦 CA | Turbocharger Hose (Ring-Retained)4" x 6" (110 psi) | View on Amazon |
This table covers the Intercooler Air Hose pipes.
2 Intercooler Air Hose / Pipe parts for the 2023 Freightliner 122SD come from 2 brands — CONTINENTAL and GATES.
Part numbers include CONTINENTAL 57513 and GATES 26203.
Radiator Hose
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 52170 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
Universal Hose (Straight, Bulk)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 31064 | 🇺🇸 US 🇨🇦 CA | Gold / ProfessionalStraight | View on Amazon |
| CONTINENTAL | 57040 | 🇺🇸 US 🇨🇦 CA | Heavy Duty Straight | View on Amazon |
| GATES | 24240 | 🇺🇸 US 🇨🇦 CA | Straight (Heavy-Duty 2-Ply)2 1/2" | 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 are listed for the 2023 Freightliner 122SD, from GATES, ACDELCO and CONTINENTAL.
The Standard Replacement section lists 1 option from GATES — built to original-equipment specification. GATES 52170 is listed in this group.
The Universal Hose (Straight, Bulk) section lists 3 options from ACDELCO, CONTINENTAL and GATES — grouped under the catalog's "Universal Hose (Straight, Bulk)" designation — the notes column spells out what sets them apart. ACDELCO 31064 is listed in this group.
Listed part numbers: GATES 52170, ACDELCO 31064 and CONTINENTAL 57040, plus the other parts above.
Water Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 44057HD | 🇺🇸 US 🇨🇦 CA | Water Pump (Heavy-Duty) | View on Amazon |
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.
One part is listed for the 2023 Freightliner 122SD — GATES 44057HD.
Buying Cooling System Parts for a 2023 Freightliner 122SD
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.
- Confirm you have the 12.8L L6 DIESEL Turbocharged engine — every part on this page is matched to it.
- 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 122SD?
Our catalog currently lists 15 cooling system parts for the 2023 Freightliner 122SD across 5 subcategories and 8 brands, covering the 12.8L L6 DIESEL Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2023 Freightliner 122SD?
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 122SD 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 122SD?
Every part on this page is matched to the 12.8L L6 DIESEL Turbocharged engine. 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 122SD
Cooling System Parts for Other Freightliner 122SD Years
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