2017 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 are listed for the 2017 Freightliner 108SD, from PRESTONE, VALVOLINE and PEAK. PRESTONE AF3100 carries the "Popular" badge. All of them fit every engine offered in the 2017 108SD.

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 6 options from PRESTONE, PEAK and VALVOLINE — 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.

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

DONALDSON supplies both parts for the 2017 Freightliner 108SD.

Listed part numbers: DONALDSON P554071 and DONALDSON P554685.

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

GPD supplies the 3 Coolant Level Sensor parts for the 2017 Freightliner 108SD.

This group includes GPD 1816403, GPD 1816610 and GPD 1816611.

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

3 Coolant Reservoir parts for the 2017 Freightliner 108SD come from 3 brands — DORMAN, GPD and SKP. Every part fits both the 6.7L L6 DIESEL Turbocharged and the 8.9L L6 DIESEL Turbocharged.

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

This group shows a single part: GATES 31532.

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

One part is listed for the 2017 Freightliner 108SD — GATES 31391.

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

2 Intercooler parts are listed for the 2017 Freightliner 108SD, from GPD and SPECTRA PREMIUM. All of them fit every engine offered in the 2017 108SD.

Part numbers include GPD 2711591 and SPECTRA PREMIUM 44011746.

This table covers the Intercooler Air Hose pipes. Read more

One part is listed for the 2017 Freightliner 108SD — 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 are listed for the 2017 Freightliner 108SD, from GPD and OSC. All of them fit every engine offered in the 2017 108SD.

Economy: 1 part, from GPD. A representative part number is GPD 9282655.

The Standard Replacement section: 1 option from OSC. OSC HD9310 is listed in this group.

This group includes 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

3 Radiator Hose parts for the 2017 Freightliner 108SD come from GATES.

Standard Replacement: 2 parts, from GATES. A representative part number is GATES 52193.

In the Universal Hose (Straight, Bulk) grade, GATES supplies 1 part: 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 24440.

Part numbers include GATES 52193, GATES 52169 and GATES 24440.

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 for the 2017 Freightliner 108SD come from 3 brands — MOTORAD, GATES and CALORSTAT.

Heavy Duty: 1 part, from GATES. A representative part number is GATES 34308.

Standard Replacement: 3 parts, from MOTORAD and CALORSTAT. A representative part number is CALORSTAT TH713082J.

3 further parts sit outside the graded sections, 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 for the 2017 Freightliner 108SD come from 7 brands — FVP, GATES, US MOTOR WORKS and 4 other brands. The "Popular" part is GATES 43570HD.

The Economy section: 1 option from FVP. FVP US69NX is listed in this group.

The High Volume / Pressure section lists 4 options from GATES, FVP and US MOTOR WORKS — grouped under the catalog's "High Volume / Pressure" designation — the notes column spells out what sets them apart. GATES 43570HD is listed in this group.

Standard Replacement: 4 parts, from DAYCO, MELLING and GMB. A representative part number is DAYCO DP1000.

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