The 2018 Freightliner M2 has 13 steering parts with verified fitment on this page — 4 part types and 5 brands, covering all 9 engine options (12.8L L6 DIESEL Turbocharged, 4.8L L4 DIESEL Turbocharged, 5.1L L4 DIESEL Turbocharged, 6.4L L6 DIESEL Turbocharged and more). Each part includes a manufacturer part number and application notes.
On the 2018 Freightliner M2, the steering system connects driver to road through the rack, pump, tie rods, and column components. 12 parts of the 13 listed are Power Steering Filter (7 parts), Center / Drag Link (3 parts) and O-Ring (2 parts). The other 1 part type covers the remaining 1 part.
The 2018 Freightliner M2 was sold with 9 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
5 brands supply steering parts for the 2018 Freightliner M2, led by MEVOTECH (3 parts), ELRING (3 parts) and HASTINGS / BALDWIN (3 parts), plus 2 more brands. Quality grades include Daily Driver, Economy and Standard Replacement.
Each part number listed for the 2018 Freightliner M2 opens a page with every vehicle that part fits.
Center / Drag Link
Daily Driver
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MEVOTECH Fits: 12.8L L6 DIESEL Turbocharged, 4.8L L4 DIESEL Turbocharged, 6.4L L6 DIESEL Turbocharged, 7.7L L6 DIESEL Turbocharged, 8.9L L6, 8.9L L6 DIESEL Turbocharged | MS43936 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Supreme | View on Amazon |
| MEVOTECH Fits: 12.8L L6 DIESEL Turbocharged, 4.8L L4 DIESEL Turbocharged, 6.4L L6 DIESEL Turbocharged, 7.7L L6 DIESEL Turbocharged, 8.9L L6, 8.9L L6 DIESEL Turbocharged | MS95938 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Supreme | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MEVOTECH Fits: 12.8L L6 DIESEL Turbocharged, 4.8L L4 DIESEL Turbocharged, 6.4L L6 DIESEL Turbocharged, 7.7L L6 DIESEL Turbocharged, 8.9L L6, 8.9L L6 DIESEL Turbocharged | GS43936 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Original Grade | View on Amazon |
This table covers the Center / Drag links. Typical signs include a clunk over a driveway lip, or a rattle from the bar. Replace links in pairs; a seized stud often takes the bushing with it.
3 Center / Drag Link parts for the 2018 Freightliner M2 come from MEVOTECH.
In the Daily Driver grade, MEVOTECH supplies 2 parts: grouped for everyday commuting duty. A representative part number is MEVOTECH MS43936.
The Economy section lists 1 option from MEVOTECH — the catalog's value-priced group. MEVOTECH GS43936 is listed in this group.
This group includes MEVOTECH MS43936, MEVOTECH MS95938 and MEVOTECH GS43936.
O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 12.8L L6 DIESEL Turbocharged | 003881 | 🇺🇸 US 🇨🇦 CA | Inner Diameter [MM]: 146.5 | View on Amazon |
| ELRING Fits: 12.8L L6 DIESEL Turbocharged | 003900 | 🇺🇸 US 🇨🇦 CA | Inner Diameter [MM]: 131.5 | View on Amazon |
This table covers the O-rings that seal this joint. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.
2 O-Ring parts for the 2018 Freightliner M2 come from ELRING.
This group includes ELRING 003881 and ELRING 003900.
Power Steering Filter
Daily Driver
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HASTINGS / BALDWIN Fits: 8.9L L6 DIESEL Turbocharged | PT23629 | 🇺🇸 US 🇨🇦 CA | Engine Code ISL 8.9 | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WIX Fits: 8.9L L6 DIESEL Turbocharged | 57191 | 🇺🇸 US 🇨🇦 CA | Spin-On Filter | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DONALDSON Fits: 12.8L L6 DIESEL Turbocharged | P573482 | 🇺🇸 US 🇨🇦 CA | Outer Diameter: 67.5 mm (2.66")Length: 89.1 mm (3.51") | View on Amazon |
| HASTINGS / BALDWIN Fits: 12.8L L6 DIESEL Turbocharged, 8.9L L6 | HF1007 | 🇺🇸 US 🇨🇦 CA | M2 112 | View on Amazon |
| HASTINGS / BALDWIN Fits: 7.7L L6 DIESEL Turbocharged | PT23629 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WIX Fits: 7.7L L6 DIESEL Turbocharged, 8.9L L6, 8.9L L6 DIESEL Turbocharged | R88525C | 🇺🇸 US 🇨🇦 CA | Cartridge Filter | View on Amazon |
| WIX Fits: 8.9L L6 | 57191 | 🇺🇸 US 🇨🇦 CA | Spin-On Filter | View on Amazon |
This table covers the Power Steering 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.
7 Power Steering Filter parts for the 2018 Freightliner M2 come from 3 brands — HASTINGS / BALDWIN, WIX and DONALDSON.
Daily Driver: 1 part, from HASTINGS / BALDWIN. A representative part number is HASTINGS / BALDWIN PT23629.
In the Standard Replacement grade, WIX supplies 1 part: built to original-equipment specification. A representative part number is WIX 57191.
5 further parts sit outside the graded sections, with the same engine-level match.
Listed part numbers: HASTINGS / BALDWIN PT23629, WIX 57191 and DONALDSON P573482, plus the other parts above.
Steering Gear Housing Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 12.8L L6 DIESEL Turbocharged | 651250 | 🇺🇸 US 🇨🇦 CA | M2 112 | View on Amazon |
This table covers the seals at the Steering Gear Housing. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
This group shows a single part: ELRING 651250.
Buying Steering Parts for a 2018 Freightliner M2
On this vehicle, the steering system connects driver to road through the rack, pump, tie rods, and column components.
- Match the engine first. Every steering 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 inner and outer tie-rod ends together on higher-mileage vehicles, then get an alignment.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Power Steering Filter and Center / Drag Link .
Frequently Asked Questions
How many steering parts fit the 2018 Freightliner M2?
Our catalog currently lists 13 steering parts for the 2018 Freightliner M2 across 4 subcategories and 5 brands, covering all 9 engine options (12.8L L6 DIESEL Turbocharged, 4.8L L4 DIESEL Turbocharged, 5.1L L4 DIESEL Turbocharged, 6.4L L6 DIESEL Turbocharged and more). Each part is matched to the engine(s) it fits.
Do steering parts differ between 2018 Freightliner M2 engines?
Yes. Every steering 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 steering problems on a 2018 Freightliner M2?
Common symptoms include play or looseness on center, a whine when turning, fluid weeping from rack boots, or uneven tire wear on the front axle. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the inner and outer tie-rod ends together on higher-mileage vehicles, then get an alignment.
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 Freightliner M2 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 Freightliner M2?
First match the engine — each row shows which engine(s) the part fits. Then flush old power-steering fluid when replacing a pump or rack — grit in the old fluid is the number-one cause of repeat failure. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2018 Freightliner M2
Steering Parts for Other Freightliner M2 Years
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