This page lists 5 automatic transmission parts for the 2026 Freightliner M2, across 1 part type, covering all 6 engine options (12.8L L6 DIESEL Turbocharged, 5.1L L4 DIESEL Turbocharged, 6.7L L6 DIESEL Turbocharged, 7.7L L6 DIESEL Turbocharged and more). Every part shows its brand, manufacturer part number and fitment notes.
On the 2026 Freightliner M2, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. Every listed part is a Filter.
The 2026 Freightliner M2 was sold with 6 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
2 brands supply automatic transmission parts for the 2026 Freightliner M2, led by WIX (4 parts) and MANN (1 part).
Each part number listed for the 2026 Freightliner M2 opens a page with every vehicle that part fits.
Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MANN Fits: 5.1L L4 DIESEL Turbocharged | WD8009 | 🇺🇸 US | View on Amazon | |
| WIX Fits: 12.8L L6 DIESEL Turbocharged | 51348 | 🇺🇸 US 🇨🇦 CA | Spin-On Filter | View on Amazon |
| WIX Fits: 12.8L L6 DIESEL Turbocharged, 8.9L L6 DIESEL Turbocharged | 57740XE | 🇺🇸 US 🇨🇦 CA | Style: Cartridge Transmission Filter | View on Amazon |
| WIX Fits: 12.8L L6 DIESEL Turbocharged | 57741XE | 🇺🇸 US 🇨🇦 CA | Media Material: Enhanced CelluloseStyle: Cartridge Hydraulic Metal Canister | View on Amazon |
| WIX Fits: 5.1L L4 DIESEL Turbocharged | 57701 | 🇺🇸 US | Spin-On Filter | View on Amazon |
This table covers the replacement filters for this application — the table heading and notes say which circuit. 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.
5 Filter parts are listed for the 2026 Freightliner M2, from WIX and MANN.
Part numbers include MANN WD8009, WIX 51348 and WIX 57740XE, among others listed above.
Buying Automatic Transmission Parts for a 2026 Freightliner M2
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- Match the engine first. Every automatic transmission 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 filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Filter .
Frequently Asked Questions
How many automatic transmission parts fit the 2026 Freightliner M2?
Our catalog currently lists 5 automatic transmission parts for the 2026 Freightliner M2 across 1 subcategory and 2 brands, covering all 6 engine options (12.8L L6 DIESEL Turbocharged, 5.1L L4 DIESEL Turbocharged, 6.7L L6 DIESEL Turbocharged, 7.7L L6 DIESEL Turbocharged and more). Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 2026 Freightliner M2 engines?
Yes. Every automatic transmission 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 automatic transmission problems on a 2026 Freightliner M2?
Common symptoms include delayed or harsh engagement, slipping under load, fluid that smells burnt, or shuddering at light throttle around 40 mph. 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 filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
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 2026 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 2026 Freightliner M2?
First match the engine — each row shows which engine(s) the part fits. Then use exactly the fluid specification in the notes — automatic transmissions are the least forgiving component on the vehicle about fluid choice. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2026 Freightliner M2
Automatic Transmission Parts for Other Freightliner M2 Years
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