97 Cooling system parts are listed for the 2011 International Paystar, in 17 part types, covering all 3 engine options (10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 8.9L L6 DIESEL Turbocharged). Each one has a brand, a manufacturer part number and notes that say where it fits.
The cooling system system on the 2011 International Paystar 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 Water Pump (25 parts), Thermostat (18 parts) and Coolant / Antifreeze (8 parts). The other 14 part types cover the remaining 46 parts.
The 2011 International Paystar was sold with 3 engines. 25 parts fit every engine; the other 72 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2011 International Paystar cooling system parts are GATES (14 parts), GPD (12 parts) and MOTORAD (10 parts), plus 19 more brands. Quality grades include Standard Replacement, Economy and Heavy Duty.
17 parts on this 2011 International Paystar page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including VALVOLINE 719009 (Coolant / Antifreeze) and SPECTRA PREMIUM 44013530 (Intercooler). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: all 2011 Paystar engines | 719009 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: all 2011 Paystar engines | ZXG051 | 🇺🇸 US 🇨🇦 CA | G05 Yellow1 Gallon | View on Amazon |
| PEAK Fits: all 2011 Paystar engines | FCA1GAL | 🇺🇸 US 🇨🇦 CA | Fleet Charge1 Gallon | View on Amazon |
| PEAK Fits: all 2011 Paystar engines | FXA1GAL | 🇺🇸 US 🇨🇦 CA | Final Charge Global1 Gallon | View on Amazon |
| PRESTONE Fits: all 2011 Paystar engines | AFC10000 | 🇺🇸 US 🇨🇦 CA | Command ESi PrechargedPurple | View on Amazon |
| PRESTONE Fits: all 2011 Paystar engines | AFC13000 | 🇺🇸 US 🇨🇦 CA | Command COR-Guard Nitrite Free-Noat Extended Life CoolantRed | View on Amazon |
| PRESTONE Fits: all 2011 Paystar engines | AFC12100 | 🇺🇸 US 🇨🇦 CA | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
| VALVOLINE Fits: all 2011 Paystar engines | 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.
8 Coolant / Antifreeze parts for the 2011 International Paystar come from 3 brands — VALVOLINE, PRESTONE and PEAK. The "Popular" part is VALVOLINE 719009. Every part fits all 3 engine options (10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 8.9L L6 DIESEL Turbocharged).
The Economy section lists 1 option from VALVOLINE — the catalog's value-priced group. VALVOLINE 719009 is listed in this group.
In the Heavy Duty grade, PRESTONE, VALVOLINE and PEAK supply 7 parts: rated for severe service. A representative part number is VALVOLINE ZXG051.
Listed part numbers: VALVOLINE 719009, VALVOLINE ZXG051 and PEAK FCA1GAL, plus the other parts above.
Coolant Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DONALDSON Fits: 14.9L L6 DIESEL Turbocharged | P550867 | 🇺🇸 US 🇨🇦 CA | Outer Diameter: 93 mm (3.66")Length: 147 mm (5.79") | View on Amazon |
| DONALDSON Fits: 14.9L L6 DIESEL Turbocharged | P550866 | 🇺🇸 US 🇨🇦 CA | Coolant filter, spin-On SCA plus | View on Amazon |
| HASTINGS / BALDWIN Fits: 10.8L L6 DIESEL Turbocharged | WC16 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HASTINGS / BALDWIN Fits: 10.8L L6 DIESEL Turbocharged | B5090 | 🇺🇸 US | 5900i | View on Amazon |
| WIX Fits: 14.9L L6 DIESEL Turbocharged | 24113 | 🇺🇸 US | Coolant Spin-On Filter | View on Amazon |
| WIX Fits: 14.9L L6 DIESEL Turbocharged | 24112 | 🇺🇸 US | Coolant 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.
6 Coolant Filter parts for the 2011 International Paystar come from 3 brands — DONALDSON, HASTINGS / BALDWIN and WIX.
Part numbers include DONALDSON P550867, DONALDSON P550866 and HASTINGS / BALDWIN WC16, among others listed above.
Coolant Level Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 8.9L L6 DIESEL Turbocharged | 1816611 | 🇺🇸 US | Cummins ISL 8.9 | View on Amazon |
This table covers the Coolant Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.
This group shows a single part: GPD 1816611.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2011 Paystar engines | 6035103 | 🇺🇸 US 🇨🇦 CA | OE FIX | View on Amazon |
| GPD Fits: all 2011 Paystar engines | 2421002 | 🇺🇸 US 🇨🇦 CA | 5500i or 5600iwith 1 Ports | View on Amazon |
| GPD Fits: 10.8L L6 DIESEL Turbocharged | 2421030 | 🇺🇸 US | 5900iwith Original Equipment (OE) # 2592723C91 | View on Amazon |
| SKP Fits: all 2011 Paystar engines | SK6035103 | 🇺🇸 US 🇨🇦 CA | Fits 5500i or 5600iwith 1 Portor 5600i | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
4 Coolant Reservoir parts are listed for the 2011 International Paystar, from GPD, DORMAN and SKP. 3 parts fit every engine; the other 1 is engine-specific.
This group includes DORMAN 6035103, GPD 2421002 and GPD 2421030 and the remaining parts above.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2011 Paystar engines | 9025102 | 🇺🇸 US 🇨🇦 CA | 5600i or 5900iwith 15 Lb. Cap | View on Amazon |
| GATES Fits: 10.8L L6 DIESEL Turbocharged | 31405 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| MOTORAD Fits: all 2011 Paystar engines | T39 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| STANT Fits: 10.8L L6 DIESEL Turbocharged | 10270 | 🇺🇸 US | OE Type Radiator Cap | View on Amazon |
This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
4 Coolant Reservoir Cap parts are listed for the 2011 International Paystar, from DORMAN, GATES, MOTORAD and 1 other brand. 2 parts fit every engine; the other 2 are engine-specific.
Part numbers include DORMAN 9025102, GATES 31405 and MOTORAD T39, among others listed above.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged | 31379 | 🇺🇸 US 🇨🇦 CA | Cooling System PressureRadiator Cap | View on Amazon |
| GATES Fits: 10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged | 31410 | 🇺🇸 US 🇨🇦 CA | Cooling System Pressure | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
2 Cooling System Tester Adapter parts for the 2011 International Paystar come from GATES.
Part numbers include GATES 31379 and GATES 31410.
Hose Clamp
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2011 Paystar engines | 9044000 | 🇺🇸 US 🇨🇦 CA | 1.75" DiameterCoolant | View on Amazon |
This table covers the Hose clamps.
This group shows a single part: DORMAN 9044000.
Intercooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SPECTRA PREMIUM Popular Fits: all 2011 Paystar engines | 44013530 | 🇺🇸 US 🇨🇦 CA | 5500i or 5600iwith 25.375 IN X 18.375 IN X 4.25 IN Core | View on Amazon |
| SPECTRA PREMIUM Popular Fits: all 2011 Paystar engines | 44013523 | 🇺🇸 US 🇨🇦 CA | 5600iwith 29.3125 IN X 19.4375 IN X 4.3125 IN Core | View on Amazon |
| GPD Fits: all 2011 Paystar engines | 2711538 | 🇺🇸 US 🇨🇦 CA | 5600iwith 4 IN Inlet | View on Amazon |
| GPD Fits: all 2011 Paystar engines | 2711613 | 🇺🇸 US 🇨🇦 CA | 5500iwith Original Equipment (OE) # 2604440C91 | View on Amazon |
| GPD Fits: all 2011 Paystar engines | 2711614 | 🇺🇸 US 🇨🇦 CA | 5500iwith Original Equipment (OE) # 2604439C91 | View on Amazon |
| GPD Fits: all 2011 Paystar engines | 2711657 | 🇺🇸 US 🇨🇦 CA | 5600iwith Original Equipment (OE) # 2592292C91 | View on Amazon |
This table covers the intercoolers that cool turbo or supercharger charge air.
6 Intercooler parts for the 2011 International Paystar come from 2 brands — GPD and SPECTRA PREMIUM. The "Popular" part is SPECTRA PREMIUM 44013530. Every part fits all 3 engine options (10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 8.9L L6 DIESEL Turbocharged).
Listed part numbers: SPECTRA PREMIUM 44013530, SPECTRA PREMIUM 44013523 and GPD 2711538, plus the other parts above.
Intercooler Air Hose / Pipe
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL Fits: 10.8L L6 DIESEL Turbocharged | 57513 | 🇺🇸 US 🇨🇦 CA | Convoluted Charge Air | View on Amazon |
| GATES Fits: 10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged | 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 2011 International Paystar come from 2 brands — CONTINENTAL and GATES.
This group includes CONTINENTAL 57513 and GATES 26203.
Radiator
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: all 2011 Paystar engines | 9282762 | 🇺🇸 US 🇨🇦 CA | 5500i or 5900iCore 40-1/8 X 27-3/8 | View on Amazon |
| GPD Fits: all 2011 Paystar engines | 9282763 | 🇺🇸 US 🇨🇦 CA | 5500i or 5600iHigh Temperature | View on Amazon |
| GPD Fits: all 2011 Paystar engines | 9282883 | 🇺🇸 US 🇨🇦 CA | 5500i or 5600iLow Temperature | View on Amazon |
| GPD Fits: all 2011 Paystar engines | 9282884 | 🇺🇸 US 🇨🇦 CA | 5500i or 5600iHigh Temperature | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SPECTRA PREMIUM Popular Fits: all 2011 Paystar engines | 20013561P | 🇺🇸 US 🇨🇦 CA | Aluminum Core with Plastic Tanks | View on Amazon |
| OSC Fits: 10.8L L6 DIESEL Turbocharged | HD9316 | 🇺🇸 US | 5900i | 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.
6 Radiator parts for the 2011 International Paystar come from 3 brands — GPD, SPECTRA PREMIUM and OSC. The "Popular" part is SPECTRA PREMIUM 20013561P. 5 parts fit every engine; the other 1 is engine-specific.
The Economy section: 4 options from GPD. GPD 9282762 is listed in this group.
In the Standard Replacement grade, SPECTRA PREMIUM and OSC supply 2 parts: built to original-equipment specification. A representative part number is SPECTRA PREMIUM 20013561P.
Part numbers include SPECTRA PREMIUM 20013561P, GPD 9282762 and GPD 9282763, among others listed above.
Radiator Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged | 31567 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
This table covers the caps that hold system pressure at the radiator or reservoir neck. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
This group shows a single part: GATES 31567.
Radiator Hose
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular Fits: 10.8L L6 DIESEL Turbocharged | 71812 | 🇺🇸 US 🇨🇦 CA | Curved or Molded Hose or Straight Hose | View on Amazon |
| GATES Popular Fits: 10.8L L6 DIESEL Turbocharged | 21891 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| CONTINENTAL Fits: 10.8L L6 DIESEL Turbocharged | 60832 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| CONTINENTAL Fits: 10.8L L6 DIESEL Turbocharged | 60957 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| CONTINENTAL Fits: 10.8L L6 DIESEL Turbocharged | 62631 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| GATES Fits: 14.9L L6 DIESEL Turbocharged | 21135 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
Universal Hose (Straight, Bulk)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 10.8L L6 DIESEL Turbocharged | 24440 | 🇺🇸 US 🇨🇦 CA | Straight (Heavy-Duty 4-Ply)2.5" (75 PSI) | View on Amazon |
| GATES Fits: 14.9L L6 DIESEL Turbocharged | 24840 | 🇺🇸 US 🇨🇦 CA | Straight (Silicone)2.5" | 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.
8 Radiator Hose parts are listed for the 2011 International Paystar, from GATES, CONTINENTAL and DAYCO. DAYCO 71812 carries the "Popular" badge.
The Standard Replacement section: 6 options from CONTINENTAL, GATES and DAYCO. DAYCO 71812 is listed in this group.
The Universal Hose (Straight, Bulk) section lists 2 options from GATES — grouped under the catalog's "Universal Hose (Straight, Bulk)" designation — the notes column spells out what sets them apart. GATES 24440 is listed in this group.
This group includes DAYCO 71812, GATES 21891 and CONTINENTAL 60832 and the remaining parts above.
Temperature Sender / Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 10.8L L6 DIESEL Turbocharged | 9047137 | 🇺🇸 US 🇨🇦 CA | ID No. 4088832 | View on Amazon |
| GPD Fits: 10.8L L6 DIESEL Turbocharged | 1814588 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender.
2 Temperature Sender / Sensor parts for the 2011 International Paystar come from 2 brands — DORMAN and GPD.
Part numbers include DORMAN 9047137 and GPD 1814588.
Thermostat
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular Fits: 10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged | 34148 | 🇺🇸 US 🇨🇦 CA | Heavy-Duty | View on Amazon |
| GATES Popular Fits: 10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged | 34146 | 🇺🇸 US 🇨🇦 CA | Heavy-Duty | View on Amazon |
| GATES Popular Fits: 10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged | 34149 | 🇺🇸 US 🇨🇦 CA | Heavy-Duty | View on Amazon |
| STANT Fits: 10.8L L6 DIESEL Turbocharged | 15009 | 🇺🇸 US | Heavy-Duty Thermostat | View on Amazon |
| STANT Fits: 10.8L L6 DIESEL Turbocharged | 15006 | 🇺🇸 US | Heavy-Duty Thermostat | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT Fits: 10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged | THS1910582 | 🇺🇸 US 🇨🇦 CA | PerformanceDoes Not Include Seal | View on Amazon |
| CALORSTAT Fits: 10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged | THS1910588 | 🇺🇸 US 🇨🇦 CA | Does not include seal | View on Amazon |
| MOTORAD Fits: 10.8L L6 DIESEL Turbocharged | 15006 | 🇺🇸 US | Heavy-Duty Thermostat | View on Amazon |
| MOTORAD Fits: 10.8L L6 DIESEL Turbocharged | 15009 | 🇺🇸 US | Heavy-Duty Thermostat | View on Amazon |
| MOTORAD Fits: 10.8L L6 DIESEL Turbocharged | 15008 | 🇺🇸 US | Heavy-Duty Thermostat | View on Amazon |
| MOTORAD Fits: 10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged | 406160 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| MOTORAD Fits: 10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged | 406190 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| MOTORAD Fits: 10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged | 407825 | 🇺🇸 US 🇨🇦 CA | 225 Degrees Ffor Engine Oil Cooler System | View on Amazon |
| MOTORAD Fits: 10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged | 406180 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT Fits: 8.9L L6 DIESEL Turbocharged | THS1910582 | 🇺🇸 US | PerformanceDoes Not Include Seal | View on Amazon |
| CALORSTAT Fits: 8.9L L6 DIESEL Turbocharged | THS1910588 | 🇺🇸 US | Does not include seal | View on Amazon |
| MOTORAD Fits: 8.9L L6 DIESEL Turbocharged | 407160 | 🇺🇸 US | Includes Seal | View on Amazon |
| MOTORAD Fits: 8.9L L6 DIESEL Turbocharged | 407180 | 🇺🇸 US | 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.
18 Thermostat parts are listed for the 2011 International Paystar, from MOTORAD, CALORSTAT, GATES and 1 other brand. GATES 34148 carries the "Popular" badge.
The Heavy Duty section: 5 options from GATES and STANT. GATES 34148 is listed in this group.
The Standard Replacement section: 9 options from MOTORAD and CALORSTAT. CALORSTAT THS1910582 is listed in this group.
4 ungrouped parts are not assigned to a grade, with the same engine-level match.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYTON Fits: 14.9L L6 DIESEL Turbocharged | 6745008G | 🇺🇸 US 🇨🇦 CA | Housing to Cylinder Head | View on Amazon |
| DAYTON Fits: 14.9L L6 DIESEL Turbocharged | 6745003G | 🇺🇸 US 🇨🇦 CA | Housing to Flange | 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.
2 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2011 International Paystar come from DAYTON.
Listed part numbers: DAYTON 6745008G and DAYTON 6745003G.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| US MOTOR WORKS Popular Fits: 14.9L L6 DIESEL Turbocharged | US932 | 🇺🇸 US 🇨🇦 CA | ISX, ISZ12 Groove Pulley Complete Unit | View on Amazon |
| FVP Fits: 14.9L L6 DIESEL Turbocharged | US932 | 🇺🇸 US 🇨🇦 CA | ISX, ISZ (12 Groove Pulley) Complete Unit (Short Bottom Outlet) | View on Amazon |
| FVP Fits: 14.9L L6 DIESEL Turbocharged | US6344 | 🇺🇸 US 🇨🇦 CA | ISX (12 Groove Pulley) | View on Amazon |
| FVP Fits: 8.9L L6 DIESEL Turbocharged | US69NX | 🇺🇸 US | ISC / ISL | View on Amazon |
| US MOTOR WORKS Fits: 10.8L L6 DIESEL Turbocharged | US2203 | 🇺🇸 US 🇨🇦 CA | 3 hole mount long shaft | View on Amazon |
| US MOTOR WORKS Fits: 10.8L L6 DIESEL Turbocharged | US2204 | 🇺🇸 US 🇨🇦 CA | 5500i or 5600i3 Hole Mount Short Shaft | View on Amazon |
| WJB / INMOTION PARTS Fits: 8.9L L6 DIESEL Turbocharged | WU6661 | 🇺🇸 US | 110MM Pulley | View on Amazon |
High Volume / Pressure
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Popular Fits: 10.8L L6 DIESEL Turbocharged | 45055HD | 🇺🇸 US 🇨🇦 CA | Water Pump (Heavy-Duty) | View on Amazon |
| GATES Popular Fits: 14.9L L6 DIESEL Turbocharged | 45052HD | 🇺🇸 US 🇨🇦 CA | Water Pump (Heavy-Duty) | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular Fits: 8.9L L6 DIESEL Turbocharged | DP1732 | 🇺🇸 US | Serpentine Belt Driven | View on Amazon |
| GMB Popular Fits: 10.8L L6 DIESEL Turbocharged | 1962240 | 🇺🇸 US 🇨🇦 CA | without Threaded Hub | View on Amazon |
| GMB Popular Fits: 14.9L L6 DIESEL Turbocharged | 1962230 | 🇺🇸 US 🇨🇦 CA | without Water Pump HousingTwo-Piece Pump | View on Amazon |
| GMB Popular Fits: 8.9L L6 DIESEL Turbocharged | 1961100 | 🇺🇸 US | 110MM Pulley | View on Amazon |
| DAYCO Fits: 10.8L L6 DIESEL Turbocharged | DP2032 | 🇺🇸 US 🇨🇦 CA | with Long Shaft | View on Amazon |
| DAYCO Fits: 10.8L L6 DIESEL Turbocharged | DP1761 | 🇺🇸 US 🇨🇦 CA | Heavy Duty | View on Amazon |
| DAYCO Fits: 14.9L L6 DIESEL Turbocharged | DP2062 | 🇺🇸 US 🇨🇦 CA | with 12 Groove Pulleywith 2 Piece Assembly | View on Amazon |
| GMB Fits: 14.9L L6 DIESEL Turbocharged | 1962230AH | 🇺🇸 US 🇨🇦 CA | Two-Piece Pumpwith Water Pump Housing | View on Amazon |
| GMB Fits: 14.9L L6 DIESEL Turbocharged | 1961020 | 🇺🇸 US 🇨🇦 CA | One-Piece Pump | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYTON Fits: 8.9L L6 DIESEL Turbocharged | 9024008 | 🇺🇸 US | View on Amazon | |
| FVP Fits: 8.9L L6 DIESEL Turbocharged | 1961100 | 🇺🇸 US | 110MM Pulley | View on Amazon |
| US MOTOR WORKS Fits: 14.9L L6 DIESEL Turbocharged | US93 | 🇺🇸 US 🇨🇦 CA | ISX, ISZ12 Groove Pulley Pump Only | View on Amazon |
| US MOTOR WORKS Fits: 14.9L L6 DIESEL Turbocharged | US6151 | 🇺🇸 US 🇨🇦 CA | ISX10 Groove Pulley | View on Amazon |
| US MOTOR WORKS Fits: 14.9L L6 DIESEL Turbocharged | US6344 | 🇺🇸 US 🇨🇦 CA | ISX12 Groove Pulley | View on Amazon |
| US MOTOR WORKS Fits: 14.9L L6 DIESEL Turbocharged | US933 | 🇺🇸 US 🇨🇦 CA | ISX, ISZ12 Groove Pulley Complete Unit | View on Amazon |
| US MOTOR WORKS Fits: 8.9L L6 DIESEL Turbocharged | US69NX | 🇺🇸 US | ISC / ISL | 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.
25 Water Pump parts are listed for the 2011 International Paystar, from US MOTOR WORKS, GMB, FVP and 4 other brands. US MOTOR WORKS US932 carries the "Popular" badge.
Economy: 7 parts, from US MOTOR WORKS, FVP and WJB / INMOTION PARTS. A representative part number is US MOTOR WORKS US932.
In the High Volume / Pressure grade, GATES supplies 2 parts: grouped under the catalog's "High Volume / Pressure" designation — the notes column spells out what sets them apart. A representative part number is GATES 45055HD.
The Standard Replacement section: 9 options from GMB and DAYCO. DAYCO DP1732 is listed in this group.
7 ungrouped parts are not assigned to a grade, with the same engine-level match.
Water Pump Seal / O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 14.9L L6 DIESEL Turbocharged | 9045129 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Water Pump Seal O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.
One part is listed for the 2011 International Paystar — DORMAN 9045129.
Buying Cooling System Parts for a 2011 International Paystar
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: Water Pump and Thermostat .
Frequently Asked Questions
How many cooling system parts fit the 2011 International Paystar?
Our catalog currently lists 97 cooling system parts for the 2011 International Paystar across 17 subcategories and 22 brands, covering all 3 engine options (10.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged and 8.9L L6 DIESEL Turbocharged). Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 2011 International Paystar engines?
Some do. 25 parts fit every engine; the other 72 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 2011 International Paystar?
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 2011 International Paystar 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 2011 International Paystar?
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 2011 International Paystar
Cooling System Parts for Other International Paystar Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.