2016 Freightliner 108SD 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 for the 2016 Freightliner 108SD come from 3 brands — PRESTONE, VALVOLINE and PEAK. The "Popular" part is PRESTONE AF3100. Every part fits both the 6.7L L6 DIESEL Turbocharged and the 8.9L L6 DIESEL Turbocharged.

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.

In the Standard Replacement grade, VALVOLINE supplies 1 part: built to original-equipment specification. A representative part number is VALVOLINE 861399.

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

3 Coolant Filter parts for the 2016 Freightliner 108SD come from 2 brands — DONALDSON and WIX. 1 part fits every engine; the other 2 are engine-specific.

Listed part numbers: DONALDSON P554071, DONALDSON P554685 and WIX 24071.

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

3 Coolant Level Sensor parts for the 2016 Freightliner 108SD come from GPD.

Part numbers include GPD 1816403, GPD 1816610 and GPD 1816611.

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

3 Coolant Reservoir parts are listed for the 2016 Freightliner 108SD, from DORMAN, GPD and SKP. All of them fit every engine offered in the 2016 108SD.

Part numbers include DORMAN 6035207, GPD 2421008 and SKP SK6035207.

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

One part is listed for the 2016 Freightliner 108SD — GATES 31532.

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

This group shows a single part: GATES 31391.

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

2 Intercooler parts for the 2016 Freightliner 108SD come from 2 brands — GPD and SPECTRA PREMIUM. Every part fits both the 6.7L L6 DIESEL Turbocharged and the 8.9L L6 DIESEL Turbocharged.

Listed part numbers: GPD 2711591 and SPECTRA PREMIUM 44011746.

This table covers the Intercooler Air Hose pipes. Read more

2 Intercooler Air Hose / Pipe parts for the 2016 Freightliner 108SD come from GATES.

Part numbers include GATES 26201 and GATES 26200.

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

2 Radiator parts for the 2016 Freightliner 108SD come from 2 brands — GPD and OSC. Every part fits both the 6.7L L6 DIESEL Turbocharged and the 8.9L L6 DIESEL Turbocharged.

The Economy section: 1 option from GPD. GPD 9282655 is listed in this group.

Standard Replacement: 1 part, from OSC. A representative part number is OSC HD9310.

Listed part numbers: GPD 9282655 and OSC HD9310.

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

5 Radiator Hose parts are listed for the 2016 Freightliner 108SD, from GATES, DAYCO and ACDELCO.

The Standard Replacement section: 3 options from GATES and DAYCO. DAYCO 71503 is listed in this group.

The Universal Hose (Straight, Bulk) section lists 2 options from ACDELCO and GATES — grouped under the catalog's "Universal Hose (Straight, Bulk)" designation — the notes column spells out what sets them apart. ACDELCO 31062 is listed in this group.

Listed part numbers: DAYCO 71503, GATES 52193 and GATES 52169, plus the other parts above.

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

7 Thermostat parts are listed for the 2016 Freightliner 108SD, from MOTORAD, GATES and CALORSTAT.

The Heavy Duty section: 1 option from GATES. GATES 34308 is listed in this group.

The Standard Replacement section: 3 options from MOTORAD and CALORSTAT. CALORSTAT TH713082J is listed in this group.

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

This group includes GATES 34308, CALORSTAT TH713082J and MOTORAD 407160 and the remaining parts above.

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

11 Water Pump parts are listed for the 2016 Freightliner 108SD, from FVP, GATES, US MOTOR WORKS and 4 other brands. GATES 43570HD carries the "Popular" badge.

Economy: 1 part, from FVP. A representative part number is FVP US69NX.

In the High Volume / Pressure grade, GATES, FVP and US MOTOR WORKS supply 4 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 43570HD.

The Standard Replacement section: 4 options from DAYCO, MELLING and GMB. DAYCO DP1000 is listed in this group.

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