2021 Freightliner M2 Engine Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

41 Engine parts are listed for the 2021 Freightliner M2, in 20 part types, covering all 8 engine options (12.8L L6 DIESEL Turbocharged, 4.8L L4 DIESEL Turbocharged, 5.1L L4 DIESEL Turbocharged, 6.7L L6 DIESEL Turbocharged and more). Each one has a brand, a manufacturer part number and notes that say where it fits.

On the 2021 Freightliner M2, 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. 17 parts of the 41 listed are Oil Filter (8 parts), Oil (5 parts) and Oil Filter Housing Seal (4 parts). The other 17 part types cover the remaining 24 parts.

Conversion / Lower Gasket Set

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 911610
🇺🇸 US 🇨🇦 CA
with Crankshaft Sealwithout Oil Sump Gasket
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This table covers lower / conversion gasket sets for oil-pan and related joints. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.

Crankshaft Seal

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 905480
🇺🇸 US 🇨🇦 CA
Material: FPM (Fluoride Rubber)
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This table covers the front and rear seals that keep oil in at the crankshaft. 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.

Cylinder Sleeve Sealing Ring

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 854330
🇺🇸 US 🇨🇦 CA
Cylinder Liner Seal Set
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This table covers the Cylinder Sleeve Sealing rings.

Intake Manifold Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 906690
🇺🇸 US 🇨🇦 CA
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This table covers the gaskets between the intake manifold and the cylinder head. 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.

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: 12.8L L6 DIESEL Turbocharged, 4.8L L4 DIESEL Turbocharged, 5.1L L4 DIESEL Turbocharged, 7.2L L6 DIESEL Turbocharged, 8.9L L6 DIESEL Turbocharged 909772
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Heavy Duty Full Synthetic SAE 15W-40 DIESEL1 Gallon
Fitment notes — VALVOLINE 909772
Heavy Duty Full Synthetic SAE 15W-40 DIESEL1 Gallon
GHG17
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Heavy Duty / Diesel

Brand Part Number Markets Notes Buy
VALVOLINE Fits: 12.8L L6 DIESEL Turbocharged, 4.8L L4 DIESEL Turbocharged, 5.1L L4 DIESEL Turbocharged, 7.2L L6 DIESEL Turbocharged, 8.9L L6 DIESEL Turbocharged 909778
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Heavy Duty Conventional SAE 15W-40 DIESEL1 Gallon
Fitment notes — VALVOLINE 909778
Heavy Duty Conventional SAE 15W-40 DIESEL1 Gallon
GHG17
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Synthetic Blend

Brand Part Number Markets Notes Buy
VALVOLINE Fits: 12.8L L6 DIESEL Turbocharged, 4.8L L4 DIESEL Turbocharged, 5.1L L4 DIESEL Turbocharged, 7.2L L6 DIESEL Turbocharged, 8.9L L6 DIESEL Turbocharged 909766
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Heavy Duty Synthetic Blend SAE 15W-40 DIESEL1 Gallon
Fitment notes — VALVOLINE 909766
Heavy Duty Synthetic Blend SAE 15W-40 DIESEL1 Gallon
GHG17
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VALVOLINE Fits: 12.8L L6 DIESEL Turbocharged, 4.8L L4 DIESEL Turbocharged, 5.1L L4 DIESEL Turbocharged, 7.2L L6 DIESEL Turbocharged, 8.9L L6 DIESEL Turbocharged 909776
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Heavy Duty Synthetic Blend SAE 10W-30 DIESEL1 Gallon
Fitment notes — VALVOLINE 909776
Heavy Duty Synthetic Blend SAE 10W-30 DIESEL1 Gallon
GHG17
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VALVOLINE Fits: 12.8L L6 DIESEL Turbocharged, 4.8L L4 DIESEL Turbocharged, 5.1L L4 DIESEL Turbocharged, 7.2L L6 DIESEL Turbocharged, 8.9L L6 DIESEL Turbocharged 909782
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Heavy Duty Synthetic Blend SAE 15W-40 DIESEL2.5 Gallon
Fitment notes — VALVOLINE 909782
Heavy Duty Synthetic Blend SAE 15W-40 DIESEL2.5 Gallon
GHG17
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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.

Oil Cooler Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 658410
🇺🇸 US 🇨🇦 CA
Lateral Mounting,Thermostat
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This table covers the gaskets that seal the Oil Cooler. 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.

Oil Filler Cap

Brand Part Number Markets Notes Buy
GATES Fits: 5.1L L4 DIESEL Turbocharged, 7.7L L6 DIESEL Turbocharged 31281
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the caps on the oil filler neck.

Oil Filter

High Performance / Heavy Duty

Brand Part Number Markets Notes Buy
WIX Fits: 8.9L L6 DIESEL Turbocharged, 8.9L L6 Turbocharged 51748XD
🇺🇸 US 🇨🇦 CA
Extended DrainSpin-On Lube Filter
Fitment notes — WIX 51748XD
Extended DrainSpin-On Lube Filter
Fits:
M2 106
or:
M2 112
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Standard Replacement

Brand Part Number Markets Notes Buy
HASTINGS / BALDWIN Fits: 8.9L L6 Turbocharged B40142
🇺🇸 US 🇨🇦 CA
Outside Diameter 1 (mm): 118.3
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MANN Fits: 8.9L L6 DIESEL Turbocharged, 8.9L L6 Turbocharged WP12121
🇺🇸 US 🇨🇦 CA
Fits or M2 112
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Brand Part Number Markets Notes Buy
DONALDSON Fits: 12.8L L6 DIESEL Turbocharged P582506
🇺🇸 US 🇨🇦 CA
Lube filter Kit
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HASTINGS / BALDWIN Fits: 12.8L L6 DIESEL Turbocharged P41000
🇺🇸 US 🇨🇦 CA
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HASTINGS / BALDWIN Fits: 5.1L L4 DIESEL Turbocharged P40017
🇺🇸 US 🇨🇦 CA
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HENGST Fits: 5.1L L4 DIESEL Turbocharged E184HD252
🇺🇸 US 🇨🇦 CA
Cartridge with Gasket Kit
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WIX Fits: 5.1L L4 DIESEL Turbocharged WL10476
🇺🇸 US 🇨🇦 CA
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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.

Oil Filter Housing Seal

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 566140
🇺🇸 US 🇨🇦 CA
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ELRING Fits: 12.8L L6 DIESEL Turbocharged 003200
🇺🇸 US 🇨🇦 CA
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ELRING Fits: 12.8L L6 DIESEL Turbocharged 003100
🇺🇸 US 🇨🇦 CA
Gasket Design: Metal Elastomer GasketMaterial: FPM (fluoride rubber)
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ELRING Fits: 12.8L L6 DIESEL Turbocharged 744970
🇺🇸 US 🇨🇦 CA
Material: ACM (Polyacrylate)
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This table covers the seals at the Oil Filter 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.

Oil Pan Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 567350
🇺🇸 US 🇨🇦 CA
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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.

Oil Pump Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 897241
🇺🇸 US 🇨🇦 CA
Feed Pipe To Engine
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This table covers the gaskets that seal the Oil Pump. 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.

Oil Pump Seal

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 003040
🇺🇸 US 🇨🇦 CA
Inner Diameter [MM]: 48,3
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ELRING Fits: 12.8L L6 DIESEL Turbocharged 003050
🇺🇸 US 🇨🇦 CA
Inner Diameter [MM]: 38,3
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This table covers the seals at the Oil Pump. 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.

Timing Chain Cover Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 003780
🇺🇸 US 🇨🇦 CA
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This table covers the gaskets that seal the Timing Chain Cover. 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.

Timing Cover Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 003790
🇺🇸 US 🇨🇦 CA
Material: ACM (Polyacrylate)
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ELRING Fits: 12.8L L6 DIESEL Turbocharged 906670
🇺🇸 US 🇨🇦 CA
CYLINDER HEAD
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ELRING Fits: 12.8L L6 DIESEL Turbocharged 699160
🇺🇸 US 🇨🇦 CA
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This table covers the gaskets that seal the Timing Cover. 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.

Turbocharger Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 491970
🇺🇸 US 🇨🇦 CA
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ELRING Fits: 12.8L L6 DIESEL Turbocharged 906820
🇺🇸 US 🇨🇦 CA
Charge Type: Exhaust Turbocharger
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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.

Turbocharger Mounting Hardware

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 972620
🇺🇸 US 🇨🇦 CA
with gaskets/sealswith Mounting Manual,with Bolts/Screws
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This table covers the fasteners that mount the turbocharger.

Valve Cover Bolt Seal

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 445570
🇺🇸 US 🇨🇦 CA
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This table covers the seals at the Valve Cover Bolt. 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.

Valve Cover Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 571272
🇺🇸 US 🇨🇦 CA
Material: Polyacrylate Rubber (ACM)
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ELRING Fits: 12.8L L6 DIESEL Turbocharged 539940
🇺🇸 US 🇨🇦 CA
Material: Zinc-Copper brazing alloy (ZN-CU)
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ELRING Fits: 12.8L L6 DIESEL Turbocharged 603480
🇺🇸 US 🇨🇦 CA
LowerCylinder Head
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This table covers the gaskets that seal the valve cover to the cylinder head. 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.

Valve Spring

Brand Part Number Markets Notes Buy
MELLING Fits: 12.8L L6 DIESEL Turbocharged VS1636
🇺🇸 US 🇨🇦 CA
IntakeO.E. Number A4720530420
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This table covers the springs that close each intake and exhaust valve. Typical signs include a sagging corner, a broken coil, or a clunk from the spring pocket. Replace springs in axle pairs and inspect the seats.

Valve Stem Seal

Brand Part Number Markets Notes Buy
ELRING Fits: 12.8L L6 DIESEL Turbocharged 654270
🇺🇸 US 🇨🇦 CA
Set
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ELRING Fits: 12.8L L6 DIESEL Turbocharged 906760
🇺🇸 US 🇨🇦 CA
View on
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This table covers the seals on each valve stem that control oil into the guides. 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.

Buying Engine Parts for a 2021 Freightliner M2

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 2021 Freightliner M2?

Our catalog currently lists 41 engine parts for the 2021 Freightliner M2 across 20 subcategories and 9 brands, covering all 8 engine options (12.8L L6 DIESEL Turbocharged, 4.8L L4 DIESEL Turbocharged, 5.1L L4 DIESEL Turbocharged, 6.7L L6 DIESEL Turbocharged and more). Each part is matched to the engine(s) it fits.

Do engine parts differ between 2021 Freightliner M2 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 2021 Freightliner M2?

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 2021 Freightliner M2?

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 2021 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 2021 Freightliner M2?

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 2021 Freightliner M2

Engine Parts for Other Freightliner M2 Years

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