2011 International Durastar Cooling System Parts

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. Read more

11 Coolant / Antifreeze parts for the 2011 International Durastar come from 3 brands — PRESTONE, VALVOLINE and PEAK. The "Popular" part is PRESTONE AF3100. 9 parts fit every engine; the other 2 are engine-specific.

In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.

The Economy section lists 2 options from PRESTONE and VALVOLINE — the catalog's value-priced group. PRESTONE AF3100 is listed in this group.

In the Heavy Duty grade, PRESTONE, PEAK and VALVOLINE supply 6 parts: rated for severe service. A representative part number is VALVOLINE ZXG051.

In the Premium grade, PRESTONE supplies 2 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.

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. Read more

2 Coolant Filter parts for the 2011 International Durastar come from 2 brands — FAMOUS BRAND and HASTINGS / BALDWIN.

This group includes FAMOUS BRAND 96324 and HASTINGS / BALDWIN WC16.

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. Read more

This group shows a single part: DORMAN 9047550.

This table covers the overflow / expansion tanks that hold extra coolant. Read more

5 Coolant Reservoir parts are listed for the 2011 International Durastar, from DORMAN, GPD and SKP. DORMAN 6035104 carries the "Popular" badge.

This group includes DORMAN 6035104, DORMAN 6035147 and DORMAN 6035159 and the remaining parts above.

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. Read more

4 Coolant Reservoir Cap parts are listed for the 2011 International Durastar, from DORMAN, GATES, MOTORAD and 1 other brand. 1 part fits every engine; the other 3 are engine-specific.

Listed part numbers: DORMAN 9025102, GATES 31405 and MOTORAD T39, plus the other parts above.

This table covers the adapters used to pressure-test this cooling system. Read more

4 Cooling System Tester Adapter parts for the 2011 International Durastar come from 2 brands — GATES and MOTORAD.

This group includes GATES 31379, GATES 31410 and MOTORAD 3132 and the remaining parts above.

This table covers the Hose clamps. Read more

This group shows a single part: DORMAN 9044000.

This table covers the intercoolers that cool turbo or supercharger charge air. Read more

4 Intercooler parts for the 2011 International Durastar come from 2 brands — GPD and SPECTRA PREMIUM.

This group includes GPD 2711513, GPD 2711656 and SPECTRA PREMIUM 44013532 and the remaining parts above.

This table covers the Intercooler Air Hose pipes. Read more

4 Intercooler Air Hose / Pipe parts for the 2011 International Durastar come from 2 brands — CONTINENTAL and GATES.

Listed part numbers: CONTINENTAL 57504, CONTINENTAL 57512 and GATES 26200, plus the other parts above.

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. Read more

10 Radiator parts for the 2011 International Durastar come from 4 brands — GPD, SPECTRA PREMIUM, AGILITY and 1 other brand. The "Popular" part is SPECTRA PREMIUM 20013537. 2 parts fit every engine; the other 8 are engine-specific.

The Economy section: 5 options from GPD. GPD 9282643 is listed in this group.

In the Standard Replacement grade, SPECTRA PREMIUM, AGILITY and UAC supply 5 parts: built to original-equipment specification. A representative part number is SPECTRA PREMIUM 20013537.

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. Read more

2 Radiator Cap parts for the 2011 International Durastar come from 2 brands — GATES and MOTORAD.

Listed part numbers: GATES 31567 and MOTORAD 100410.

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. Read more

8 Radiator Hose parts are listed for the 2011 International Durastar, from GATES, DAYCO, ACDELCO and 1 other brand. GATES 21302 carries the "Popular" badge.

This group includes GATES 21302, GATES 23794 and ACDELCO 20140S and the remaining parts above.

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. Read more

2 Temperature Sender / Sensor parts for the 2011 International Durastar come from 2 brands — DORMAN and GPD.

Part numbers include DORMAN 9047549 and GPD 1814619.

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. Read more

3 Thermostat parts are listed for the 2011 International Durastar, from MOTORAD and SKP.

Economy: 1 part, from SKP. A representative part number is SKP SK902685.

The Standard Replacement section: 1 option from MOTORAD. MOTORAD 510192 is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

Part numbers include SKP SK902685, MOTORAD 510192 and MOTORAD 716200.

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. Read more

13 Water Pump parts are listed for the 2011 International Durastar, from US MOTOR WORKS, FVP, SKP and 3 other brands. SKP SK1384720 carries the "Popular" badge.

Economy: 4 parts, from FVP and SKP. A representative part number is SKP SK1384720.

In the High Volume / Pressure grade, GATES supplies 1 part: grouped under the catalog's "High Volume / Pressure" designation — the notes column spells out what sets them apart. A representative part number is GATES 43325HD.

The Standard Replacement section: 2 options from DAYCO and GMB. DAYCO DP1390 is listed in this group.

6 ungrouped parts are not assigned to a grade, with the same engine-level match.