The 2021 Ford Transit Custom has 41 engine parts with verified fitment on this page — 21 part types and 6 brands, covering the 2.2L L4 DIESEL Turbocharged engine. Each part includes a manufacturer part number and application notes.
The engine on the 2021 Ford Transit Custom 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 Cylinder Head Gasket (6 parts), Crankshaft Seal (4 parts) and Valve Cover Gasket (3 parts). The other 18 part types cover the remaining 28 parts.
The 2021 Ford Transit Custom came with a single engine, the 2.2L L4 DIESEL Turbocharged, and every part is verified against it.
6 brands supply engine parts for the 2021 Ford Transit Custom, led by ELRING (20 parts), AJUSA (17 parts) and KING ENGINE BEARINGS (1 part), plus 3 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Ford Transit Custom. 2 parts have it, including ELRING 156201 (Cylinder Head Gasket) and ELRING 156221 (Cylinder Head Gasket). Each part number opens a page with every vehicle that part fits.
Conversion / Lower Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 54235100 | 🇲🇽 MX | Engine # CYFF, CYF4 | View on Amazon |
| ELRING | 437370 | 🇲🇽 MX | with Crankshaft Seal | View on Amazon |
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.
2 Conversion / Lower Gasket Set parts are listed for the 2021 Ford Transit Custom, from AJUSA and ELRING.
Listed part numbers: AJUSA 54235100 and ELRING 437370.
Crankshaft Main Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KING ENGINE BEARINGS | MB5675AM | 🇲🇽 MX | SetBimetal (Aluminum Base) | View on Amazon |
This table covers the main bearings that support the crankshaft in the block. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
This group shows a single part: KING ENGINE BEARINGS MB5675AM.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 15075700 | 🇲🇽 MX | Front/13.5Clockwise | View on Amazon |
| AJUSA | 71001800 | 🇲🇽 MX | RearEngine CYFF, CYF4 | View on Amazon |
| ELRING | 026782 | 🇲🇽 MX | Material: PTFE (polytetrafluoroethylene) | View on Amazon |
| ELRING | 026812 | 🇲🇽 MX | with Mounting SleeveMaterial: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber) | View on Amazon |
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.
4 Crankshaft Seal parts for the 2021 Ford Transit Custom come from 2 brands — AJUSA and ELRING.
This group includes AJUSA 15075700, AJUSA 71001800 and ELRING 026782 and the remaining parts above.
Cylinder Head Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 81043800 | 🇲🇽 MX | Engine # CYFF,CYF4 | View on Amazon |
| ELRING | 733100 | 🇲🇽 MX | Set | View on Amazon |
This table covers the bolts that clamp the cylinder head to the block.
2 Cylinder Head Bolt parts are listed for the 2021 Ford Transit Custom, from AJUSA and ELRING.
Listed part numbers: AJUSA 81043800 and ELRING 733100.
Cylinder Head Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Popular | 156201 | 🇲🇽 MX | Diameter [MM]: 87,1Piston Protrusion From [MM]: 0,430 | View on Amazon |
| ELRING Popular | 156221 | 🇲🇽 MX | Diameter [MM]: 87,1Installed Thickness [MM]: 1,2 | View on Amazon |
| AJUSA | 10185300 | 🇲🇽 MX | Multi Layered SteelDoes Not Include Cylinder Head Gasket | View on Amazon |
| AJUSA | 10185310 | 🇲🇽 MX | Multi Layered SteelDoes Not Include Cylinder Head Gasket | View on Amazon |
| AJUSA | 10185320 | 🇲🇽 MX | Multi Layered SteelDoes Not Include Cylinder Head Gasket | View on Amazon |
| ELRING | 156211 | 🇲🇽 MX | Diameter [MM]: 87,1Installed Thickness [MM]: 1,15 | View on Amazon |
This table covers the head gaskets that seal the block 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.
6 Cylinder Head Gasket parts are listed for the 2021 Ford Transit Custom, from ELRING and AJUSA. ELRING 156201 carries the "Popular" badge.
Listed part numbers: ELRING 156201, ELRING 156221 and AJUSA 10185300, plus the other parts above.
Cylinder Head Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 53063700 | 🇲🇽 MX | Does Not Include Cylinder Head Gasket | View on Amazon |
| ELRING | 573350 | 🇲🇽 MX | without Cylinder Head Gasketwith valve stem seals | View on Amazon |
This table covers multi-piece gasket sets for a cylinder-head job. 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.
2 Cylinder Head Gasket Set parts are listed for the 2021 Ford Transit Custom, from AJUSA and ELRING.
This group includes AJUSA 53063700 and ELRING 573350.
Engine Kit Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 51068700 | 🇲🇽 MX | Does Not Include Cylinder Head Gasket | View on Amazon |
This table covers full gasket kits covering the joints opened in an engine rebuild. 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.
One part is listed for the 2021 Ford Transit Custom — AJUSA 51068700.
Intake Manifold Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 13169800 | 🇲🇽 MX | Engine # CYFF,CYF4 | View on Amazon |
| ELRING | 027150 | 🇲🇽 MX | Material: Metaloseal (VMQ) | View on Amazon |
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.
2 Intake Manifold Gasket parts are listed for the 2021 Ford Transit Custom, from AJUSA and ELRING.
This group includes AJUSA 13169800 and ELRING 027150.
Intake to Exhaust Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 725200 | 🇲🇽 MX | Extended Cargo VanBody code: N1B | View on Amazon |
This table covers the gaskets that seal the Intake to Exhaust. 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.
This group shows a single part: ELRING 725200.
Oil Cooler Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 473760 | 🇲🇽 MX | Material: AEM (Ethylene Acrylate Rubber) | View on Amazon |
| ELRING | 604831 | 🇲🇽 MX | Extended Cargo VanBody code: N1B | View on Amazon |
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.
ELRING supplies both parts for the 2021 Ford Transit Custom.
This group includes ELRING 473760 and ELRING 604831.
Oil Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 012001 | 🇲🇽 MX | with Seal RingSpanner Size: 13 mm | View on Amazon |
This table covers the drain plugs in the oil pan.
This group shows a single part: ELRING 012001.
Oil Drain Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 01115300 | 🇲🇽 MX | Engine CYFF, CYF4 | View on Amazon |
| ELRING | 176090 | 🇲🇽 MX | Material: ElastomerShape: Asymmetrical | View on Amazon |
This table covers the crush washers and gaskets under the oil drain plug. 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.
2 Oil Drain Plug Gasket parts are listed for the 2021 Ford Transit Custom, from AJUSA and ELRING.
Listed part numbers: AJUSA 01115300 and ELRING 176090.
Oil Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR | PG5830EX | 🇲🇽 MX | Extended LifeCartridge 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.
This group shows a single part: VARIOUS MFR PG5830EX.
Oil Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 59014100 | 🇲🇽 MX | Engine CYFF, CYF4 | View on Amazon |
| ELRING | 027371 | 🇲🇽 MX | UpperExtended Cargo Van | View on Amazon |
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.
2 Oil Pan Gasket parts for the 2021 Ford Transit Custom come from 2 brands — AJUSA and ELRING.
This group includes AJUSA 59014100 and ELRING 027371.
Oil Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP | SK1717570 | 🇲🇽 MX | View on Amazon |
This table covers the Oil pumps. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit.
This group shows a single part: SKP SK1717570.
Piston Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HASTINGS MANUFACTURING | 2D7451 | 🇲🇽 MX | Full SetTop Ring Surface Treatment: Ceramic Chrome | View on Amazon |
This table covers the rings that seal each piston to the cylinder wall.
One part is listed for the 2021 Ford Transit Custom — HASTINGS MANUFACTURING 2D7451.
Turbocharger Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | JTC11787 | 🇲🇽 MX | Mounting Gasket Set | View on Amazon |
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.
One part is listed for the 2021 Ford Transit Custom — AJUSA JTC11787.
Turbocharger Mounting Hardware
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 584560 | 🇲🇽 MX | StudThread Size: M8X1,25x25 | View on Amazon |
| ELRING | 541620 | 🇲🇽 MX | with gaskets/sealswith Mounting Manual,with Bolts/Screws | View on Amazon |
This table covers the fasteners that mount the turbocharger.
ELRING supplies both parts for the 2021 Ford Transit Custom.
Listed part numbers: ELRING 584560 and ELRING 541620.
Turbocharger Oil Line
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | OP10803 | 🇲🇽 MX | Engine CYFF, CYF4Supply Tube | View on Amazon |
This table covers the Turbocharger Oil lines. Typical signs include a wet fitting, a rusted pipe, or a pressure loss in this circuit. Flare or thread the new line the way the notes specify; a kinked replacement will fail early.
This group shows a single part: AJUSA OP10803.
Valve Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 56062100 | 🇲🇽 MX | Engine CYFF, CYF4 | View on Amazon |
| ELRING | 568860 | 🇲🇽 MX | outerExtended Cargo Van | View on Amazon |
| ELRING | 469690 | 🇲🇽 MX | UpperExtended Cargo Van | View on Amazon |
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.
3 Valve Cover Gasket parts for the 2021 Ford Transit Custom come from 2 brands — ELRING and AJUSA.
Part numbers include AJUSA 56062100, ELRING 568860 and ELRING 469690.
Valve Stem Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 12018500 | 🇲🇽 MX | 5.5 x 12 x 18.5Engine # CYFF,CYF4 | View on Amazon |
| AJUSA | 57036600 | 🇲🇽 MX | Engine # CYFF,CYF4 | View on Amazon |
| ELRING | 027740 | 🇲🇽 MX | Inner Diameter [MM]: 12Outside Diameter: 24.2 mm | View on Amazon |
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.
3 Valve Stem Seal parts for the 2021 Ford Transit Custom come from 2 brands — AJUSA and ELRING.
Part numbers include AJUSA 12018500, AJUSA 57036600 and ELRING 027740.
Buying Engine Parts for a 2021 Ford Transit Custom
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.
- Confirm you have the 2.2L L4 DIESEL Turbocharged engine — every part on this page is matched to it.
- 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: Cylinder Head Gasket and Crankshaft Seal .
Frequently Asked Questions
How many engine parts fit the 2021 Ford Transit Custom?
Our catalog currently lists 41 engine parts for the 2021 Ford Transit Custom across 21 subcategories and 6 brands, covering the 2.2L L4 DIESEL Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of engine problems on a 2021 Ford Transit Custom?
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 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 Ford Transit Custom 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 Ford Transit Custom?
Every part on this page is matched to the 2.2L L4 DIESEL Turbocharged engine. 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 Ford Transit Custom
Engine Parts for Other Ford Transit Custom Years
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