2026 Freightliner M2 Parts

Before ordering anything for a 2026 Freightliner M2, confirm the engine: our records list 6 variants (12.8L L6 DIESEL Turbocharged, 5.1L L4 DIESEL Turbocharged, 6.7L L6 DIESEL Turbocharged…), and many of the 156 parts fit only one of them. The engine code is on the emissions label under the hood if you're not sure — then pick a category below and filter to your engine.

Every part carries its brand and manufacturer part number, so you can compare OEM-grade and aftermarket options for the same fitment and cross-reference the number against the part you're replacing before anything goes in the cart.

Browse by Engine

Not sure which engine you have? Check the emissions label under the hood, your registration, or decode the VIN — the 8th character usually identifies the engine.

Parts by Category

Body & Lamp Assembly Parts

6 parts · 1 subcategory · 1 brand Verified fitment Covers the exterior panels, bumpers, mirrors, lamps and the trim that keeps weather and road debris out.

Brake & Wheel Hub Parts

7 parts · 1 subcategory · 3 brands Verified fitment Handles stopping power and keeps each wheel turning true on its bearing and hub assembly.

Cooling System Parts

35 parts · 3 subcategories · 2 brands Verified fitment Keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.

Drivetrain Parts

2 parts · 1 subcategory · 1 brand Verified fitment Moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.

Electrical Parts

6 parts · 1 subcategory · 1 brand Verified fitment Covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.

Engine Parts

27 parts · 2 subcategories · 4 brands Verified fitment Covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.

Exhaust & Emission Parts

20 parts · 3 subcategories · 4 brands Verified fitment Carries combustion gases out safely and keeps emissions equipment — catalytic converters, O2 sensors, EGR — doing its job.

Fuel & Air Parts

34 parts · 2 subcategories · 3 brands Verified fitment Meters fuel and air — pumps, injectors, filters, intake components and the sensors that balance the mixture.

Heat & Air Conditioning Parts

11 parts · 1 subcategory · 3 brands Verified fitment Keeps the cabin comfortable and the windshield clear through the compressor, condenser, evaporator, heater core and blower.

Steering Parts

2 parts · 1 subcategory · 1 brand Verified fitment Connects driver to road through the rack, pump, tie rods, and column components.

Automatic Transmission Parts

6 parts · 1 subcategory · 2 brands Verified fitment Covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.

Each category page covers all 6 engine options for the 2026 Freightliner M2 — every part shows the engine(s) it fits, and an on-page filter narrows it to yours.

Confirm your configuration

Make Year Model Engine Part category Subcategory

Other Freightliner M2 Years

2025 2024 2023 2022 2021 2020 2019 2018 2017

Getting Fitment Right on the 2026 Freightliner M2

Most wrong-part orders for the 2026 Freightliner M2 trace back to the engine choice: with 6 options listed, components that look interchangeable — cooling parts, tensioners, mounts, sensors — often carry different part numbers per engine. Each row shows which engine(s) it fits, and each category page filters to one engine at a time.

Every part across the 11 categories shows its brand and manufacturer part number. Use the number to cross-reference: match it to the part coming off the vehicle, compare an OEM-supplier part against its aftermarket equivalent, or verify a shop's estimate line by line. When a number is discontinued, the same-fitment parts around it are the fastest path to a current replacement.

Frequently Asked Questions

How many parts fit the 2026 Freightliner M2?

We list 156 parts for the 2026 Freightliner M2, organized into 11 categories across 6 engine options. Every part includes the brand, manufacturer part number and fitment notes.

Which engines came in the 2026 Freightliner M2?

Our records list 12.8L L6 DIESEL Turbocharged, 5.1L L4 DIESEL Turbocharged, 6.7L L6 DIESEL Turbocharged, 7.7L L6 DIESEL Turbocharged, 8.9L L6 DIESEL Turbocharged, 8.9L L6 Turbocharged. Parts frequently differ between them — a part verified for one engine is not guaranteed to fit another — so identify your engine first (emissions label under the hood, or the VIN's 8th character), then use the engine filter on each category page.

Are OEM and aftermarket parts both available for the 2026 Freightliner M2?

Yes — parts come from original-equipment suppliers and established aftermarket brands, shown side by side with their part numbers where both cover the same fitment. Cross-referencing those numbers is how you confirm an aftermarket part genuinely replaces the OEM one.

How do I verify a part number fits my 2026 Freightliner M2?

Search the number on this site: the result shows the part, its brand and every configuration with published fitment. If your exact year, model and engine appear in that list, the number is a match. The notes column carries any remaining qualifiers — position, trim or production date.

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.