The 2023 Freightliner Cascadia has 25 engine parts with verified fitment on this page — 7 part types and 9 brands, covering all 7 engine options (11.9L DIESEL, 11.9L Turbocharged, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more). Each part includes a manufacturer part number and application notes.
On the 2023 Freightliner Cascadia, 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. 20 parts of the 25 listed are Oil Filter (11 parts), Oil (5 parts) and Turbocharger (4 parts). The other 4 part types cover the remaining 5 parts.
The 2023 Freightliner Cascadia was sold with 7 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2023 Freightliner Cascadia engine parts are VALVOLINE (5 parts), GPD (5 parts) and DONALDSON (4 parts), plus 6 more brands.
2 parts on this 2023 Freightliner Cascadia page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including HASTINGS / BALDWIN P41000 (Oil Filter) and WIX WL10663 (Oil Filter). Click any part number to see 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: 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged, 15.6L 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: 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged, 15.6L 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: 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged, 15.6L L6 DIESEL Turbocharged | 909766 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Heavy Duty Synthetic Blend SAE 15W-40 DIESEL1 Gallon | View on Amazon |
| VALVOLINE Fits: 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged, 15.6L L6 DIESEL Turbocharged | 909776 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Heavy Duty Synthetic Blend SAE 10W-30 DIESEL1 Gallon | View on Amazon |
| VALVOLINE Fits: 14.8L L6 DIESEL Turbocharged, 14.9L L6 DIESEL Turbocharged, 15.6L 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.
VALVOLINE supplies the 5 Oil parts for the 2023 Freightliner Cascadia.
In the Full Synthetic grade, VALVOLINE supplies 1 part: full-synthetic oils. A representative part number is VALVOLINE 909772.
In the Heavy Duty / Diesel grade, VALVOLINE supplies 1 part: grouped under the catalog's "Heavy Duty / Diesel" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE 909778.
In the Synthetic Blend grade, VALVOLINE supplies 3 parts: synthetic-blend oils. A representative part number is VALVOLINE 909766.
Listed part numbers: VALVOLINE 909772, VALVOLINE 909778 and VALVOLINE 909766, plus the other parts above.
Oil Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HASTINGS / BALDWIN Popular Fits: 14.8L L6 DIESEL Turbocharged, 15.6L L6 DIESEL Turbocharged | P41000 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WIX Popular Fits: 14.8L L6 DIESEL Turbocharged | WL10663 | 🇺🇸 US 🇨🇦 CA | Two Housing Options Exist - Check Filter FitmentMay Require OE # A4731800409 | View on Amazon |
| DONALDSON Fits: 14.8L L6 DIESEL Turbocharged, 15.6L L6 DIESEL Turbocharged | P582506 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Lube filter Kit | View on Amazon |
| DONALDSON Fits: 14.8L L6 DIESEL Turbocharged | P550008 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Spin-On Full FlowOuter Diameter: 95 mm (3.74") | View on Amazon |
| DONALDSON Fits: 14.8L L6 DIESEL Turbocharged | P552518 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Outer Diameter: 93 mm (3.66")Length: 107 mm (4.21") | View on Amazon |
| DONALDSON Fits: 14.9L L6 DIESEL Turbocharged | P559000 | 🇺🇸 US 🇨🇦 CA | Outer Diameter: 118 mm (4.65")Length: 297 mm (11.69") | View on Amazon |
| HASTINGS / BALDWIN Fits: 14.9L L6 DIESEL Turbocharged | B40145 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HENGST Fits: 14.8L L6 DIESEL Turbocharged | E523HD654 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cartridge | View on Amazon |
| MANN Fits: 14.8L L6 DIESEL Turbocharged | HU12021Z | 🇺🇸 US 🇨🇦 CA | Two Housing Options Exist - Check Filter FitmentMay Require OE # A4731800409 | View on Amazon |
| WIX Fits: 11.9L DIESEL, 11.9L Turbocharged, 14.9L L6 DIESEL Turbocharged | WL11097 | 🇺🇸 US 🇨🇦 CA | Spin-On Filter | View on Amazon |
| WIX Fits: 11.9L DIESEL, 11.9L Turbocharged | WL10107 | 🇺🇸 US 🇨🇦 CA | Synthetic Media | 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.
11 Oil Filter parts are listed for the 2023 Freightliner Cascadia, from DONALDSON, WIX, HASTINGS / BALDWIN and 2 other brands. HASTINGS / BALDWIN P41000 carries the "Popular" badge.
Oil Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 14.9L L6 DIESEL Turbocharged | 2645606 | 🇺🇸 US 🇨🇦 CA | Front Sump20qt. Capacity | View on Amazon |
This table covers the oil pans that hold the engine's oil sump.
This group shows a single part: DORMAN 2645606.
Oil Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 14.9L L6 DIESEL Turbocharged | 2646005G | 🇺🇸 US 🇨🇦 CA | 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.
One part is listed for the 2023 Freightliner Cascadia — DORMAN 2646005G.
Timing Belt Tensioner
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Fits: 14.9L L6 DIESEL Turbocharged | SK89448 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Timing Belt tensioners. Typical signs include belt flutter, a chirp that returns after a new belt, or an arm that no longer damps. Replace the tensioner with the belt at higher mileage.
One part is listed for the 2023 Freightliner Cascadia — SKP SK89448.
Turbocharger
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 11.9L Turbocharged | 2511914 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GPD Fits: 14.9L L6 DIESEL Turbocharged | 2512005 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GPD Fits: 14.9L L6 DIESEL Turbocharged | 2512006 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GPD Fits: 14.9L L6 DIESEL Turbocharged | 2513060 | 🇺🇸 US 🇨🇦 CA | with Electronic Actuator | View on Amazon |
This table covers the turbochargers that compress intake air.
GPD supplies the 4 Turbocharger parts for the 2023 Freightliner Cascadia.
This group includes GPD 2511914, GPD 2512005 and GPD 2512006 and the remaining parts above.
Turbocharger Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 11.9L DIESEL, 11.9L Turbocharged, 14.9L L6 DIESEL Turbocharged | 6745001G | 🇺🇸 US 🇨🇦 CA | Mounting Gasket | View on Amazon |
| GPD Fits: 14.9L L6 DIESEL Turbocharged | 2535108 | 🇺🇸 US 🇨🇦 CA | 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.
2 Turbocharger Gasket parts for the 2023 Freightliner Cascadia come from 2 brands — DORMAN and GPD.
Listed part numbers: DORMAN 6745001G and GPD 2535108.
Buying Engine Parts for a 2023 Freightliner Cascadia
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 2023 Freightliner Cascadia?
Our catalog currently lists 25 engine parts for the 2023 Freightliner Cascadia across 7 subcategories and 9 brands, covering all 7 engine options (11.9L DIESEL, 11.9L Turbocharged, 12.8L L6 DIESEL Turbocharged, 14.8L L6 DIESEL Turbocharged and more). Each part is matched to the engine(s) it fits.
Do engine parts differ between 2023 Freightliner Cascadia 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 2023 Freightliner Cascadia?
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 2023 Freightliner Cascadia?
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 2023 Freightliner Cascadia 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 2023 Freightliner Cascadia?
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 2023 Freightliner Cascadia
Engine Parts for Other Freightliner Cascadia Years
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