The 2018 Jac Sei 3 has 2 engine parts with verified fitment on this page — 1 part type and 1 brand, covering the 1.6L L4 engine. Each part includes a manufacturer part number and application notes.
The engine on the 2018 Jac Sei 3 covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. Every listed part is an Oil Filter.
Every part on this page is matched to the 1.6L L4 — the only engine offered in the 2018 Jac Sei 3.
Every engine part listed for the 2018 Jac Sei 3 comes from VARIOUS MFR. Quality grades include Economy and Standard Replacement.
Each part number listed for the 2018 Jac Sei 3 opens a page with every vehicle that part fits.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR | PG4612 | 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR | PG4612EX | 🇲🇽 MX | Extended Life | 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.
VARIOUS MFR supplies both parts for the 2018 Jac Sei 3.
In the Economy grade, VARIOUS MFR supplies 1 part: the catalog's value-priced group. A representative part number is VARIOUS MFR PG4612.
The Standard Replacement section lists 1 option from VARIOUS MFR — built to original-equipment specification. VARIOUS MFR PG4612EX is listed in this group.
This group includes VARIOUS MFR PG4612 and VARIOUS MFR PG4612EX.
Buying Engine Parts for a 2018 Jac Sei 3
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 1.6L 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: Oil Filter .
Frequently Asked Questions
How many engine parts fit the 2018 Jac Sei 3?
Our catalog currently lists 2 engine parts for the 2018 Jac Sei 3 across 1 subcategory and 1 brand, covering the 1.6L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of engine problems on a 2018 Jac Sei 3?
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 2018 Jac Sei 3 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 2018 Jac Sei 3?
Every part on this page is matched to the 1.6L 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 2018 Jac Sei 3
Engine Parts for Other Jac Sei 3 Years
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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.