The 2021 International Lonestar has one listed interior part: a Window Regulator from DORMAN, covering the 14.9L L6 DIESEL Turbocharged — the only engine offered in the 2021 International Lonestar. It includes a manufacturer part number and application notes.
On the 2021 International Lonestar, the interior covers cabin hardware — seat components, handles, switch bezels, carpet, pedals and the pieces that take daily wear.
The part number opens a page with every vehicle that part fits.
Window Regulator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 740884 | 🇺🇸 US 🇨🇦 CA | Front LeftManual | View on Amazon |
This table covers the regulators that raise and lower each door glass.
This group shows a single part: DORMAN 740884.
Buying Interior Parts for a 2021 International Lonestar
On this vehicle, the interior covers cabin hardware — seat components, handles, switch bezels, carpet, pedals and the pieces that take daily wear.
- Confirm you have the 14.9L L6 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 retainer clips with any panel removal — they are cheap insurance against squeaks.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Window Regulator .
Frequently Asked Questions
How many interior parts fit the 2021 International Lonestar?
This page lists one interior part for the 2021 International Lonestar: a Window Regulator from DORMAN, covering the 14.9L L6 DIESEL Turbocharged engine.
What are the signs of interior problems on a 2021 International Lonestar?
Common symptoms include a door handle that works only from outside, sagging headliner, a window switch that needs two presses, or seat adjusters that stick. 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 retainer clips with any panel removal — they are cheap insurance against squeaks.
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 International Lonestar 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 International Lonestar?
Every part on this page is matched to the 14.9L L6 DIESEL Turbocharged engine. Then interior plastics are often color- and trim-specific — check the notes column against your trim level before ordering. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 International Lonestar
Interior Parts for Other International Lonestar 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.