49 Cooling system parts are listed for the 2018 Freightliner 114SD, in 11 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 2018 Freightliner 114SD 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 (9 parts) and Radiator Hose (6 parts). The other 8 part types cover the remaining 22 parts.
The 2018 Freightliner 114SD came with a single engine, the 12.8L L6 DIESEL Turbocharged, and every part is verified against it.
18 brands supply cooling system parts for the 2018 Freightliner 114SD, led by PRESTONE (7 parts), GPD (7 parts) and GATES (7 parts), plus 15 more brands. Quality grades include Standard Replacement, Heavy Duty and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2018 Freightliner 114SD. 8 parts have it, including PRESTONE AF3100 (Coolant / Antifreeze) and DORMAN 6035202 (Coolant Reservoir). 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 | AF3055 | 🇺🇸 US 🇨🇦 CA | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF3100 | 🇺🇸 US 🇨🇦 CA | Prime Yellow - All VehiclesExtended Life | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | ZXG051 | 🇺🇸 US 🇨🇦 CA | G05 Yellow1 Gallon | 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 |
| PRESTONE | AFC13000 | 🇺🇸 US 🇨🇦 CA | Command COR-Guard Nitrite Free-Noat Extended Life CoolantRed | View on Amazon |
| PRESTONE | AFC12100 | 🇺🇸 US 🇨🇦 CA | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
| VALVOLINE | 846439 | 🇺🇸 US 🇨🇦 CA | HD Nitrite Free Extended Life Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇺🇸 US 🇨🇦 CA | All Vehicles10yr/300k mi | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US 🇨🇦 CA | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE | 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 2018 Freightliner 114SD, from PRESTONE, VALVOLINE and PEAK. PRESTONE AF3100 carries the "Popular" badge.
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 |
|---|---|---|---|---|
| DONALDSON | P551008 | 🇺🇸 US 🇨🇦 CA | Coolant Filter, Cartridge | View on Amazon |
| WIX | 24155 | 🇺🇸 US 🇨🇦 CA | 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.
2 Coolant Filter parts are listed for the 2018 Freightliner 114SD, from DONALDSON and WIX.
Listed part numbers: DONALDSON P551008 and WIX 24155.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 6035202 | 🇺🇸 US 🇨🇦 CA | with 2 Mounting holes | View on Amazon |
| DORMAN | 6035207 | 🇺🇸 US 🇨🇦 CA | with 3 Mounting holes | View on Amazon |
| GPD | 2421006 | 🇺🇸 US 🇨🇦 CA | with 2 Mounting holes | View on Amazon |
| GPD | 2421008 | 🇺🇸 US 🇨🇦 CA | with 3 Mounting holes | View on Amazon |
| SKP | SK6035207 | 🇺🇸 US 🇨🇦 CA | with 3 Mounting holes | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
5 Coolant Reservoir parts for the 2018 Freightliner 114SD come from 3 brands — DORMAN, GPD and SKP. The "Popular" part is DORMAN 6035202.
This group includes DORMAN 6035202, DORMAN 6035207 and GPD 2421006 and the remaining parts above.
Intercooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 2711652 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SPECTRA PREMIUM | 44011727 | 🇺🇸 US 🇨🇦 CA | with 35.375 IN X 25.875 IN X 2.4375 IN Corewith 4 IN Inlet | 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.
3 Intercooler parts are listed for the 2018 Freightliner 114SD, from SPECTRA PREMIUM and GPD.
Part numbers include GPD 2711652, SPECTRA PREMIUM 44011727 and SPECTRA PREMIUM 44011730.
Intercooler Air Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL | 57513 | 🇺🇸 US 🇨🇦 CA | Convoluted Charge Air | View on Amazon |
| CONTINENTAL | 57514 | 🇺🇸 US 🇨🇦 CA | Convoluted Charge Air | View on Amazon |
| GATES | 26204 | 🇺🇸 US 🇨🇦 CA | Turbocharger Hose (Ring-Retained)4" x 8" (110 psi) | 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.
4 Intercooler Air Hose / Pipe parts are listed for the 2018 Freightliner 114SD, from CONTINENTAL and GATES.
Listed part numbers: CONTINENTAL 57513, CONTINENTAL 57514 and GATES 26204, plus the other parts above.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 9282655 | 🇺🇸 US 🇨🇦 CA | Fits Horizontal | View on Amazon |
| GPD | 9282657 | 🇺🇸 US 🇨🇦 CA | with 38-7/8 X 38 15/32 In CoreConnections On Opposite Sides | View on Amazon |
| GPD | 9282658 | 🇺🇸 US 🇨🇦 CA | with Automatic Transmissionwithout PTO | View on Amazon |
| GPD | 9282659 | 🇺🇸 US 🇨🇦 CA | with PTO | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SPECTRA PREMIUM Popular | 20011733 | 🇺🇸 US 🇨🇦 CA | All Aluminum Unit | View on Amazon |
| SPECTRA PREMIUM Popular | 20011733P | 🇺🇸 US 🇨🇦 CA | Aluminum Core with Plastic Tanks | View on Amazon |
| AGILITY | 8070018 | 🇺🇸 US 🇨🇦 CA | No Frame IncludedOEM Frame Must be Reused | View on Amazon |
| AGILITY | 8070113 | 🇺🇸 US 🇨🇦 CA | HD | View on Amazon |
| SPECTRA PREMIUM | 20011762P | 🇺🇸 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.
9 Radiator parts are listed for the 2018 Freightliner 114SD, from GPD, SPECTRA PREMIUM and AGILITY. SPECTRA PREMIUM 20011733 carries the "Popular" badge.
Economy: 4 parts, from GPD. A representative part number is GPD 9282655.
The Standard Replacement section: 5 options from SPECTRA PREMIUM and AGILITY. SPECTRA PREMIUM 20011733 is listed in this group.
This group includes SPECTRA PREMIUM 20011733, GPD 9282655 and GPD 9282657 and the remaining parts above.
Radiator Hose
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 21135 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| DAYCO | 70909 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| GATES | 52163 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| GATES | 52162 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
Universal Hose (Straight, Bulk)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular | 24240 | 🇺🇸 US 🇨🇦 CA | Straight (Heavy-Duty 2-Ply)2 1/2" | View on Amazon |
| ACDELCO | 31064 | 🇺🇸 US 🇨🇦 CA | Gold / ProfessionalStraight | 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.
6 Radiator Hose parts for the 2018 Freightliner 114SD come from 3 brands — GATES, DAYCO and ACDELCO. The "Popular" part is GATES 21135.
Standard Replacement: 4 parts, from GATES and DAYCO. A representative part number is GATES 21135.
In the Universal Hose (Straight, Bulk) grade, GATES and ACDELCO 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 GATES 24240.
Part numbers include GATES 21135, DAYCO 70909 and GATES 52163, among others listed above.
Thermostat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | THS1910582 | 🇺🇸 US 🇨🇦 CA | PerformanceDoes Not Include Seal | View on Amazon |
| CALORSTAT | THS1910588 | 🇺🇸 US 🇨🇦 CA | Does not include 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.
2 Thermostat parts for the 2018 Freightliner 114SD come from CALORSTAT.
Listed part numbers: CALORSTAT THS1910582 and CALORSTAT THS1910588.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 004030 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
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.
One part is listed for the 2018 Freightliner 114SD — ELRING 004030.
Water Pump
High Volume / Pressure
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 44057HD | 🇺🇸 US 🇨🇦 CA | Water Pump (Heavy-Duty) | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO | DP783 | 🇺🇸 US 🇨🇦 CA | Serpentine Belt Driven | View on Amazon |
| GMB | 1962360 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP | 1962360 | 🇺🇸 US 🇨🇦 CA | 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.
4 Water Pump parts for the 2018 Freightliner 114SD come from 4 brands — GATES, DAYCO, GMB and 1 other brand.
The High Volume / Pressure section lists 1 option from GATES — grouped under the catalog's "High Volume / Pressure" designation — the notes column spells out what sets them apart. GATES 44057HD is listed in this group.
Standard Replacement: 2 parts, from DAYCO and GMB. A representative part number is DAYCO DP783.
1 further part sits outside the graded sections, with the same engine-level match.
This group includes GATES 44057HD, DAYCO DP783 and GMB 1962360 and the remaining parts above.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 004010 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
One part is listed for the 2018 Freightliner 114SD — ELRING 004010.
Buying Cooling System Parts for a 2018 Freightliner 114SD
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 .
Frequently Asked Questions
How many cooling system parts fit the 2018 Freightliner 114SD?
Our catalog currently lists 49 cooling system parts for the 2018 Freightliner 114SD across 11 subcategories and 18 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 2018 Freightliner 114SD?
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 2018 Freightliner 114SD 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 2018 Freightliner 114SD?
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 2018 Freightliner 114SD
Cooling System Parts for Other Freightliner 114SD Years
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