2018 International Workstar Engine Parts

This table covers the Camshaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

One part is listed for the 2018 International Workstar — DURA-BOND IN24.

This table covers the Crankcase pressure sensors. Typical signs include a check-engine light for MAP or fuel-rail pressure, or a limp mode under load. A vacuum leak or a clogged reference line will fake a bad pressure sensor. Read more

This group shows a single part: DORMAN 9047119.

This table covers the cylinder heads that close the top of the block. Read more

This group shows a single part: CYLINDER HEAD EXPRESS CH6707N.

This table covers the intake valves that let air (and fuel, on port-injected engines) into the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

This group shows a single part: QUALCAST 1013162.

This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable. Read more

5 Oil parts for the 2018 International Workstar come from VALVOLINE.

The Full Synthetic section lists 1 option from VALVOLINE — full-synthetic oils. VALVOLINE 909772 is listed in this group.

The Heavy Duty / Diesel section lists 1 option from VALVOLINE — grouped under the catalog's "Heavy Duty / Diesel" designation — the notes column spells out what sets them apart. VALVOLINE 909778 is listed in this group.

The Synthetic Blend section lists 3 options from VALVOLINE — synthetic-blend oils. VALVOLINE 909766 is listed in this group.

This group includes VALVOLINE 909772, VALVOLINE 909778 and VALVOLINE 909766 and the remaining parts above.

This table covers the heat exchangers that cool engine oil. Typical signs include oil at the cooler fittings, or coolant that looks like a milkshake. Pressure-test both circuits after a cooler swap — a leak here mixes oil and coolant. Read more

This group shows a single part: SKP SK918335.

This table covers the Oil Dipstick tubes. Read more

3 Oil Dipstick / Tube parts for the 2018 International Workstar come from 2 brands — DORMAN and DAYTON.

Part numbers include DAYTON 9175518, DORMAN 9176008 and DORMAN 9176011.

This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive. Read more

18 Oil Filter parts for the 2018 International Workstar come from 5 brands — WIX, HASTINGS / BALDWIN, PUROLATOR and 2 other brands. The "Popular" part is WIX 57744XD.

The Economy section lists 1 option from PUROLATOR — the catalog's value-priced group. PUROLATOR TL14670 is listed in this group.

The High Performance / Heavy Duty section lists 2 options from WIX — grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. WIX 57744XD is listed in this group.

In the Standard Replacement grade, WIX, HASTINGS / BALDWIN, DONALDSON and 1 other brand supply 10 parts: built to original-equipment specification. A representative part number is WIX 51068.

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

This table covers the oil pans that hold the engine's oil sump. Read more

3 Oil Pan parts are listed for the 2018 International Workstar, from SPECTRA PREMIUM and DORMAN.

Part numbers include DORMAN 2645065, SPECTRA PREMIUM CMP06A and SPECTRA PREMIUM CMP10A.

This table covers the turbochargers that compress intake air. Read more

4 Turbocharger parts for the 2018 International Workstar come from 2 brands — GPD and ROTOMASTER.

Listed part numbers: GPD 2511361, GPD 2511887 and GPD 2511891, plus the other parts above.

This table covers the gaskets that seal the Turbocharger. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

2 Turbocharger Gasket parts are listed for the 2018 International Workstar, from DORMAN and GPD.

This group includes DORMAN 6749049 and GPD 2535074.

This table covers the Turbocharger speed sensors. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

One part is listed for the 2018 International Workstar — DORMAN 9047146.