28 Engine parts are listed for the 2018 International Prostar, in 9 part types, covering both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2018 International Prostar, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. 19 parts of the 28 listed are Oil Filter (9 parts), Oil (5 parts) and Turbocharger Gasket (5 parts). The other 6 part types cover the remaining 9 parts.
The 2018 International Prostar was sold with both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
10 brands supply engine parts for the 2018 International Prostar, led by VALVOLINE (5 parts), DORMAN (5 parts) and WIX (4 parts), plus 7 more brands. Quality grades include Standard Replacement, High Performance / Heavy Duty and Heavy Duty / Diesel.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2018 International Prostar. 2 parts have it, including WIX 57746XD (Oil Filter) and DORMAN 6749042 (Turbocharger Gasket). Each part number opens a page with every vehicle that part fits.
Oil
Summary: Notes list SAE 10W-30 and SAE 15W-40. Confirm the engine and the weight on the filler cap before you buy. Replacement brands in this table include VALVOLINE.
Full Synthetic
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 14.9L L6 DIESEL Turbocharged | 909772 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Heavy Duty Full Synthetic SAE 15W-40 DIESEL1 Gallon | View on Amazon |
Heavy Duty / Diesel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 14.9L L6 DIESEL Turbocharged | 909778 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Heavy Duty Conventional SAE 15W-40 DIESEL1 Gallon | View on Amazon |
Synthetic Blend
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 14.9L L6 DIESEL Turbocharged | 909766 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Heavy Duty Synthetic Blend SAE 15W-40 DIESEL1 Gallon | View on Amazon |
| VALVOLINE Fits: 14.9L L6 DIESEL Turbocharged | 909776 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Heavy Duty Synthetic Blend SAE 10W-30 DIESEL1 Gallon | View on Amazon |
| VALVOLINE Fits: 14.9L L6 DIESEL Turbocharged | 909782 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Heavy Duty Synthetic Blend SAE 15W-40 DIESEL2.5 Gallon | View on Amazon |
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.
5 Oil parts for the 2018 International Prostar 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.
Oil Filter
High Performance / Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WIX Popular Fits: 14.9L L6 DIESEL Turbocharged | 57746XD | 🇺🇸 US | Extended DrainSpin-On Lube Filter | View on Amazon |
| WIX Fits: 14.9L L6 DIESEL Turbocharged | WL10005XD | 🇺🇸 US | Extended Drain | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DONALDSON Fits: 14.9L L6 DIESEL Turbocharged | P550335 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Length: 86 mm (3.39")Outer Diameter: 76 mm (2.99") | View on Amazon |
| DONALDSON Fits: 14.9L L6 DIESEL Turbocharged | P559000 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Outer Diameter: 118 mm (4.65")Length: 297 mm (11.69") | View on Amazon |
| HASTINGS / BALDWIN Fits: 14.9L L6 DIESEL Turbocharged | BD50000 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Dual-Flow | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HASTINGS / BALDWIN Fits: 12.4L L6 DIESEL Turbocharged | BC7485 | 🇺🇸 US 🇨🇦 CA | Centrifuge Optional | View on Amazon |
| HASTINGS / BALDWIN Fits: 12.4L L6 DIESEL Turbocharged | LF672 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WIX Fits: 12.4L L6 DIESEL Turbocharged | 57467 | 🇺🇸 US | BypassCentrifuge Type | View on Amazon |
| WIX Fits: 12.4L L6 DIESEL Turbocharged | WL10047 | 🇺🇸 US | Full flow | View on Amazon |
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.
9 Oil Filter parts for the 2018 International Prostar come from 3 brands — WIX, HASTINGS / BALDWIN and DONALDSON. The "Popular" part is WIX 57746XD.
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 57746XD is listed in this group.
In the Standard Replacement grade, DONALDSON and HASTINGS / BALDWIN supply 3 parts: built to original-equipment specification. A representative part number is DONALDSON P550335.
4 further parts sit outside the graded sections, with the same engine-level match.
Listed part numbers: WIX 57746XD, WIX WL10005XD and DONALDSON P550335, plus the other parts above.
Oil Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SPECTRA PREMIUM Fits: 14.9L L6 DIESEL Turbocharged | CMP09A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front SumpEPA 13 | View on Amazon |
| SPECTRA PREMIUM Fits: 14.9L L6 DIESEL Turbocharged | CMP08A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front SumpEPA 17 | View on Amazon |
This table covers the oil pans that hold the engine's oil sump.
SPECTRA PREMIUM supplies both parts for the 2018 International Prostar.
Part numbers include SPECTRA PREMIUM CMP09A and SPECTRA PREMIUM CMP08A.
Oil Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 14.9L L6 DIESEL Turbocharged | 2646005G | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the gaskets between the oil pan and the block. 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.
This group shows a single part: DORMAN 2646005G.
Turbocharger
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 14.9L L6 DIESEL Turbocharged | 2511361 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| GPD Fits: 14.9L L6 DIESEL Turbocharged | 2511800 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Does Not Include Electronic Actuator | View on Amazon |
| GPD Fits: 14.9L L6 DIESEL Turbocharged | 2511893 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the turbochargers that compress intake air.
3 Turbocharger parts for the 2018 International Prostar come from GPD.
Listed part numbers: GPD 2511361, GPD 2511800 and GPD 2511893.
Turbocharger Boost Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 14.9L L6 DIESEL Turbocharged | 9047130 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Turbocharger Boost 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.
One part is listed for the 2018 International Prostar — DORMAN 9047130.
Turbocharger Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 14.9L L6 DIESEL Turbocharged | 6749042 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | V BandOutlet | View on Amazon |
| DAYTON Fits: 14.9L L6 DIESEL Turbocharged | 6745001G | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Gasket | View on Amazon |
| DORMAN Fits: 14.9L L6 DIESEL Turbocharged | 6749018 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ONE GasketOutlet | View on Amazon |
| DORMAN Fits: 14.9L L6 DIESEL Turbocharged | 6749024 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Two GasketsOutlet | View on Amazon |
| GPD Fits: 14.9L L6 DIESEL Turbocharged | 2535074 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Only Fits Compatible Aftermarket Turbochargers | View on Amazon |
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.
5 Turbocharger Gasket parts are listed for the 2018 International Prostar, from DORMAN, DAYTON and GPD. DORMAN 6749042 carries the "Popular" badge.
Listed part numbers: DORMAN 6749042, DAYTON 6745001G and DORMAN 6749018, plus the other parts above.
Turbocharger Service Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROTOMASTER Fits: 14.9L L6 DIESEL Turbocharged | H1560301N | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with HE561VE Turbo | View on Amazon |
This table covers the Turbocharger service kits.
One part is listed for the 2018 International Prostar — ROTOMASTER H1560301N.
Valve Spring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING Fits: 14.9L L6 DIESEL Turbocharged | VS1479 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | O.E. Numbers 4965891, 3681001, and 3679551 | View on Amazon |
This table covers the springs that close each intake and exhaust valve. Typical signs include a sagging corner, a broken coil, or a clunk from the spring pocket. Replace springs in axle pairs and inspect the seats.
One part is listed for the 2018 International Prostar — MELLING VS1479.
Buying Engine Parts for a 2018 International Prostar
On this vehicle, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.
- Match the engine first. Every engine part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Oil Filter and Oil .
Frequently Asked Questions
How many engine parts fit the 2018 International Prostar?
Our catalog currently lists 28 engine parts for the 2018 International Prostar across 9 subcategories and 10 brands, covering both the 12.4L L6 DIESEL Turbocharged and the 14.9L L6 DIESEL Turbocharged. Each part is matched to the engine(s) it fits.
Do engine parts differ between 2018 International Prostar engines?
Yes. Every engine part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of engine problems on a 2018 International Prostar?
Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What oil viscosity is listed for the 2018 International Prostar?
Oil rows on this page include SAE 10W-30 and SAE 15W-40. Confirm the engine and the weight on the filler cap before you buy — high-mileage and standard fills can differ.
What should I replace at the same time?
Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2018 International Prostar was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2018 International Prostar?
First match the engine — each row shows which engine(s) the part fits. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2018 International Prostar
Engine Parts for Other International Prostar Years
Switch vehicle or jump to a subcategory
Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.