This page lists 9 interior parts for the 2026 Rivian R1S, across 2 part types, covering the ELECTRIC engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2026 Rivian R1S, the interior covers cabin hardware — seat components, handles, switch bezels, carpet, pedals and the pieces that take daily wear. All 9 listed parts are Floor Mat (5 parts) and Cargo Area Mat (4 parts).
Every part on this page is matched to the ELECTRIC — the only engine offered in the 2026 Rivian R1S.
Every interior part listed for the 2026 Rivian R1S comes from 3D. Quality grades include All Weather and Carpet.
1 part on this 2026 Rivian R1S page carries a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — 3D L1RI00801509 (Floor Mat). Click any part number to see every vehicle that part fits.
Cargo Area Mat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| 3D | M1RI0071309 | 🇺🇸 US 🇨🇦 CA | KAGU Triple Layer DesignCargo Liner | View on Amazon |
| 3D | Q1RI0031309 | 🇺🇸 US 🇨🇦 CA | Kagu Triple Layer DesignSeatback Protector | View on Amazon |
| 3D | Q1RI001130 | 🇺🇸 US 🇨🇦 CA | Kagu Triple Layer DesignSeatback Protector | View on Amazon |
| 3D | M1RI001130 | 🇺🇸 US 🇨🇦 CA | KAGU Triple Layer DesignCargo Liner | View on Amazon |
This table covers the Cargo Area mats.
4 Cargo Area Mat parts for the 2026 Rivian R1S come from 3D.
Listed part numbers: 3D M1RI0071309, 3D Q1RI0031309 and 3D Q1RI001130, plus the other parts above.
Floor Mat
All Weather
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| 3D Popular | L1RI00801509 | 🇺🇸 US 🇨🇦 CA | KAGU Triple Layer Design4 Piece | View on Amazon |
| 3D | L1RI0013150 | 🇺🇸 US 🇨🇦 CA | KAGU Triple Layer Design | View on Amazon |
| 3D | L1RI0012150 | 🇺🇸 US 🇨🇦 CA | KAGU Triple Layer Design | View on Amazon |
| 3D | L1RI00611509 | 🇺🇸 US 🇨🇦 CA | KAGU Triple Layer Design2 Piece | View on Amazon |
Carpet
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| 3D | L1RI00804709 | 🇺🇸 US 🇨🇦 CA | Elegant4 Piece | View on Amazon |
This table covers the floor mats cut for this cabin.
3D supplies the 5 Floor Mat parts for the 2026 Rivian R1S. 3D L1RI00801509 carries the "Popular" badge.
The All Weather section lists 4 options from 3D — grouped under the catalog's "All Weather" designation — the notes column spells out what sets them apart. 3D L1RI00801509 is listed in this group.
The Carpet section lists 1 option from 3D — grouped under the catalog's "Carpet" designation — the notes column spells out what sets them apart. 3D L1RI00804709 is listed in this group.
Listed part numbers: 3D L1RI00801509, 3D L1RI0013150 and 3D L1RI0012150, plus the other parts above.
Buying Interior Parts for a 2026 Rivian R1S
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 ELECTRIC 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: Floor Mat and Cargo Area Mat .
Frequently Asked Questions
How many interior parts fit the 2026 Rivian R1S?
Our catalog currently lists 9 interior parts for the 2026 Rivian R1S across 2 subcategories and 1 brand, covering the ELECTRIC engine. Each part is matched to the engine(s) it fits.
What are the signs of interior problems on a 2026 Rivian R1S?
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 2026 Rivian R1S 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 2026 Rivian R1S?
Every part on this page is matched to the ELECTRIC 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 2026 Rivian R1S
Interior Parts for Other Rivian R1S 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.