14 Engine parts are listed for the 2023 Freightliner 108SD, in 4 part types, covering all 3 engine options (6.7L L6 DIESEL Turbocharged, 7.7L L6 DIESEL Turbocharged and 8.9L L6 DIESEL Turbocharged). Each one has a brand, a manufacturer part number and notes that say where it fits.
The engine on the 2023 Freightliner 108SD covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. The largest groups are Oil Filter (7 parts), Oil (5 parts) and Crankcase Pressure Sensor (1 part). The other 1 part type covers the remaining 1 part.
The 2023 Freightliner 108SD was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
8 brands supply engine parts for the 2023 Freightliner 108SD, led by VALVOLINE (5 parts), WIX (2 parts) and DONALDSON (2 parts), plus 5 more brands. Quality grades include Standard Replacement, Heavy Duty / Diesel and High Performance / Heavy Duty.
Each part number listed for the 2023 Freightliner 108SD opens a page with every vehicle that part fits.
Crankcase Pressure Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.7L L6 DIESEL Turbocharged | 9047119 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
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.
This group shows a single part: DORMAN 9047119.
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: 8.9L L6 DIESEL Turbocharged | 909772 | 🇺🇸 US 🇨🇦 CA | Heavy Duty Full Synthetic SAE 15W-40 DIESEL1 Gallon | View on Amazon |
Heavy Duty / Diesel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 8.9L L6 DIESEL Turbocharged | 909778 | 🇺🇸 US 🇨🇦 CA | Heavy Duty Conventional SAE 15W-40 DIESEL1 Gallon | View on Amazon |
Synthetic Blend
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 8.9L L6 DIESEL Turbocharged | 909766 | 🇺🇸 US 🇨🇦 CA | Heavy Duty Synthetic Blend SAE 15W-40 DIESEL1 Gallon | View on Amazon |
| VALVOLINE Fits: 8.9L L6 DIESEL Turbocharged | 909776 | 🇺🇸 US 🇨🇦 CA | Heavy Duty Synthetic Blend SAE 10W-30 DIESEL1 Gallon | View on Amazon |
| VALVOLINE Fits: 8.9L L6 DIESEL Turbocharged | 909782 | 🇺🇸 US 🇨🇦 CA | 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 2023 Freightliner 108SD 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.
Listed part numbers: VALVOLINE 909772, VALVOLINE 909778 and VALVOLINE 909766, plus the other parts above.
Oil Filler Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES Fits: 7.7L L6 DIESEL Turbocharged | 31281 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the caps on the oil filler neck.
This group shows a single part: GATES 31281.
Oil Filter
High Performance / Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WIX Fits: 8.9L L6 DIESEL Turbocharged | 51748XD | 🇺🇸 US 🇨🇦 CA | Extended DrainSpin-On Lube Filter | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DONALDSON Fits: 8.9L L6 DIESEL Turbocharged | P553000 | 🇺🇸 US 🇨🇦 CA | Spin-OnOuter Diameter: 118 mm (4.65") | View on Amazon |
| MANN Fits: 8.9L L6 DIESEL Turbocharged | WP12121 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DONALDSON Fits: 6.7L L6 DIESEL Turbocharged | P550428 | 🇺🇸 US 🇨🇦 CA | Outer Diameter: 93 mm (3.66")Length: 174 mm (6.85") | View on Amazon |
| HASTINGS / BALDWIN Fits: 6.7L L6 DIESEL Turbocharged | LF551 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HENGST Fits: 7.7L L6 DIESEL Turbocharged | E181HD531 | 🇺🇸 US 🇨🇦 CA | Cartridge with Gasket Kit | View on Amazon |
| WIX Fits: 6.7L L6 DIESEL Turbocharged | 57182 | 🇺🇸 US 🇨🇦 CA | Spin-On FilterSpin-On Lube Filter | 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.
7 Oil Filter parts for the 2023 Freightliner 108SD come from 5 brands — WIX, DONALDSON, MANN and 2 other brands.
The High Performance / Heavy Duty section lists 1 option from WIX — grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. WIX 51748XD is listed in this group.
In the Standard Replacement grade, DONALDSON and MANN supply 2 parts: built to original-equipment specification. A representative part number is DONALDSON P553000.
4 further parts sit outside the graded sections, with the same engine-level match.
Part numbers include WIX 51748XD, DONALDSON P553000 and MANN WP12121, among others listed above.
Buying Engine Parts for a 2023 Freightliner 108SD
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 108SD?
Our catalog currently lists 14 engine parts for the 2023 Freightliner 108SD across 4 subcategories and 8 brands, covering all 3 engine options (6.7L L6 DIESEL Turbocharged, 7.7L L6 DIESEL Turbocharged and 8.9L L6 DIESEL Turbocharged). Each part is matched to the engine(s) it fits.
Do engine parts differ between 2023 Freightliner 108SD 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 108SD?
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 108SD?
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 108SD 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 108SD?
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 108SD
Engine Parts for Other Freightliner 108SD Years
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