This page lists 21 engine parts for the 2005 MG ZR, across 10 part types, covering the 1.8L L4 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2005 MG ZR, 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. 10 parts of the 21 listed are Crankshaft Seal (4 parts), Cylinder Head Gasket Set (3 parts) and Oil (3 parts). The other 7 part types cover the remaining 11 parts.
Every part on this page is matched to the 1.8L L4 — the only engine offered in the 2005 MG ZR.
The most listed brands for 2005 MG ZR engine parts are AJUSA (14 parts), VALVOLINE (3 parts) and VICTOR REINZ (2 parts), plus 1 more brand.
Each part number listed for the 2005 MG ZR opens a page with every vehicle that part fits.
Camshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 15008100 | 🇲🇽 MX | 30 x 40 x 7Clockwise | View on Amazon |
| AJUSA | 15056300 | 🇲🇽 MX | 30 x 40 x 7Counter Clockwise | View on Amazon |
This table covers the seals at each camshaft end. 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.
AJUSA supplies both parts for the 2005 MG ZR.
This group includes AJUSA 15008100 and AJUSA 15056300.
Conversion / Lower Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 54078900 | 🇲🇽 MX | Engine # 18K4K(VVC), 18K16 | 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.
This group shows a single part: AJUSA 54078900.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 15045300 | 🇲🇽 MX | Front27 X 39.5 X 7 | View on Amazon |
| AJUSA | 15045400 | 🇲🇽 MX | Rear79 X 116/125.5 X 7.5 | View on Amazon |
| VICTOR REINZ | 813484200 | 🇲🇽 MX | Fits Frontwith Engine Code 18 K4F | View on Amazon |
| VICTOR REINZ | 813834200 | 🇲🇽 MX | Fits Rearwith Engine Code 18 K4F | 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 are listed for the 2005 MG ZR, from AJUSA and VICTOR REINZ.
Listed part numbers: AJUSA 15045300, AJUSA 15045400 and VICTOR REINZ 813484200, plus the other parts above.
Cylinder Head Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 81026400 | 🇲🇽 MX | Engine # 18K4K(VVC), 18K16 | View on Amazon |
This table covers the bolts that clamp the cylinder head to the block.
This group shows a single part: AJUSA 81026400.
Cylinder Head Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 10071400 | 🇲🇽 MX | Multi Layered Steel | View on Amazon |
| ELRING | 167411 | 🇲🇽 MX | 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.
2 Cylinder Head Gasket parts for the 2005 MG ZR come from 2 brands — AJUSA and ELRING.
This group includes AJUSA 10071400 and ELRING 167411.
Cylinder Head Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 52138200 | 🇲🇽 MX | Engine 18K4K(VVC) | View on Amazon |
| AJUSA | 52172300 | 🇲🇽 MX | Engine # 18K16 | View on Amazon |
| ELRING | 167381 | 🇲🇽 MX | Steel Elastomerwith 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.
3 Cylinder Head Gasket Set parts for the 2005 MG ZR come from 2 brands — AJUSA and ELRING.
Listed part numbers: AJUSA 52138200, AJUSA 52172300 and ELRING 167381.
Engine Kit Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 50151300 | 🇲🇽 MX | Engine 18K4K(VVC) | View on Amazon |
| AJUSA | 50186200 | 🇲🇽 MX | Engine # 18K16 | 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.
2 Engine Kit Gasket Set parts for the 2005 MG ZR come from AJUSA.
Part numbers include AJUSA 50151300 and AJUSA 50186200.
Intake Manifold Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 13120100 | 🇲🇽 MX | Engine # 18K16 | View on Amazon |
| AJUSA | 13120300 | 🇲🇽 MX | Engine 18K4K(VVC) | 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 for the 2005 MG ZR come from AJUSA.
Listed part numbers: AJUSA 13120100 and AJUSA 13120300.
Intake Plenum Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 00753300 | 🇲🇽 MX | Engine 18K4K (VVC) | View on Amazon |
This table covers the gaskets that seal the Intake Plenum. 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 2005 MG ZR — AJUSA 00753300.
Oil
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE | VV966 | 🇲🇽 MX | European Vehicle Full Synthetic SAE 5W-401 Quart | View on Amazon |
| VALVOLINE | 881166 | 🇲🇽 MX | European Vehicle Full Synthetic SAE 5W-40Easy Pour 5 Quart | View on Amazon |
| VALVOLINE | 881050 | 🇲🇽 MX | European Vehicle Full Synthetic SAE 5W-405 Gallon Bay Box | View on Amazon |
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.
VALVOLINE supplies the 3 Oil parts for the 2005 MG ZR.
This group includes VALVOLINE VV966, VALVOLINE 881166 and VALVOLINE 881050.
Buying Engine Parts for a 2005 MG ZR
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 1.8L L4 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: Crankshaft Seal and Cylinder Head Gasket Set .
Frequently Asked Questions
How many engine parts fit the 2005 MG ZR?
Our catalog currently lists 21 engine parts for the 2005 MG ZR across 10 subcategories and 4 brands, covering the 1.8L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of engine problems on a 2005 MG ZR?
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 2005 MG ZR?
Oil rows on this page include SAE 5W-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 2005 MG ZR 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 2005 MG ZR?
Every part on this page is matched to the 1.8L L4 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 2005 MG ZR
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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.