2012 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

12 Coolant / Antifreeze parts are listed for the 2012 International Durastar, from PRESTONE, VALVOLINE and PEAK. PRESTONE AF3100 carries the "Popular" badge. 9 parts fit every engine; the other 3 are 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 and VALVOLINE supply 2 parts: 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.

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

HASTINGS / BALDWIN supplies both parts for the 2012 International Durastar.

Listed part numbers: HASTINGS / BALDWIN WC16 and HASTINGS / BALDWIN LOPRI.

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

One part is listed for the 2012 International Durastar — DORMAN 9047550.

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

3 Coolant Reservoir parts for the 2012 International Durastar come from 3 brands — DORMAN, GPD and SKP.

This group includes DORMAN 6035104, GPD 2421015 and SKP SK6035104.

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 for the 2012 International Durastar come from 4 brands — DORMAN, GATES, MOTORAD and 1 other brand. 1 part fits every engine; the other 3 are engine-specific.

Part numbers include DORMAN 9025102, GATES 31405 and MOTORAD T39, among others listed above.

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

4 Cooling System Tester Adapter parts are listed for the 2012 International Durastar, from GATES and MOTORAD.

Listed part numbers: GATES 31379, GATES 31410 and MOTORAD 3132, plus the other parts above.

This table covers the Hose clamps. Read more

One part is listed for the 2012 International Durastar — DORMAN 9044000.

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

2 Intercooler parts are listed for the 2012 International Durastar, from GPD and SPECTRA PREMIUM.

This group includes GPD 2711656 and SPECTRA PREMIUM 44013512.

This table covers the Intercooler Air Hose pipes. Read more

4 Intercooler Air Hose / Pipe parts are listed for the 2012 International Durastar, from CONTINENTAL and GATES.

Part numbers include CONTINENTAL 57504, CONTINENTAL 57512 and GATES 26200, among others listed 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 are listed for the 2012 International Durastar, from GPD, SPECTRA PREMIUM, AGILITY and 1 other brand. SPECTRA PREMIUM 20013537 carries the "Popular" badge. 2 parts fit every engine; the other 8 are engine-specific.

Economy: 5 parts, from GPD. A representative part number is GPD 9282643.

The Standard Replacement section lists 5 options from SPECTRA PREMIUM, AGILITY and UAC — built to original-equipment specification. SPECTRA PREMIUM 20013537 is listed in this group.

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 are listed for the 2012 International Durastar, from GATES and MOTORAD.

Part numbers include 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 for the 2012 International Durastar come from 3 brands — DAYCO, GATES and CONTINENTAL. The "Popular" part is GATES 20731.

Part numbers include GATES 20731, GATES 23794 and CONTINENTAL 66630, among others listed 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

One part is listed for the 2012 International Durastar — DORMAN 9047549.

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 for the 2012 International Durastar come from 2 brands — MOTORAD and SKP.

The Economy section: 1 option from SKP. SKP SK902685 is listed in this group.

Standard Replacement: 1 part, from MOTORAD. A representative part number is MOTORAD 510192.

1 further part sits outside the graded sections, with the same engine-level match.

This group includes 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

17 Water Pump parts for the 2012 International Durastar come from 6 brands — US MOTOR WORKS, FVP, GATES and 3 other brands. The "Popular" part is SKP SK1384720.

The Economy section: 5 options from FVP and SKP. SKP SK1384720 is listed in this group.

The High Volume / Pressure section lists 3 options from GATES — grouped under the catalog's "High Volume / Pressure" designation — the notes column spells out what sets them apart. GATES 43325HD is listed in this group.

Standard Replacement: 2 parts, from DAYCO and GMB. A representative part number is DAYCO DP1390.

7 further parts sit outside the graded sections, with the same engine-level match.