Rivian R1T vs. R1S Accessories: What Fits Which Model?

Quick answer

The R1T and R1S share a platform, so many cabin and charging accessories fit both, but anything shaped by the bed, tailgate, or rear cargo area is model-specific. Buy by listed fitment, not by platform family. If a product page names only one model, treat it as one-model-only until the listing says otherwise.

Rivian built the R1T and R1S on the same architecture, which leads a lot of owners to assume accessories are interchangeable. Some are. Plenty are not. The pickup bed, the SUV's enclosed rear, and the different rear glass and tailgate layouts change what actually mounts cleanly.

This comparison walks through where the two models genuinely overlap and where they split, using real product listings as examples. The goal is simple: help you avoid a return and get the right Rivian accessory the first time.

Where R1T and R1S accessories overlap

The front half of the cabin is the closest thing to a shared zone. Dashboard mounts, phone holders, and many interior organizers are listed for both R1T and R1S because the dash, vent, and console geometry is effectively the same. If a listing explicitly says R1T and R1S, that is your green light.

Charging and power accessories also tend to cross over. Adapters, cables, and small power accessories rarely depend on bed or cargo shape, so they are usually safe across both models. The overlap shrinks fast once you move behind the front seats.

• Check the fitment line on the product page before assuming platform sharing means part sharing.
• When a listing names both R1T and R1S, that is a stronger signal than a generic Rivian label.

Where R1T and R1S accessories split

The R1T's bed, tailgate, and tonneau area have no R1S equivalent, so bed organizers, bed mats, and tailgate-specific items are R1T-only by design. The R1S replaces that with an enclosed rear cargo area and a different rear opening, which means cargo-area accessories built for the SUV will not fit the truck.

Exterior add-ons follow the same logic. Anything keyed to the rear silhouette, rear glass, or rear-mounted hardware will be model-specific. If you are shopping for a Rivian exterior accessory and the listing only mentions one model, plan for it to fit only that model.

• Bed and tailgate accessories: R1T only.
• Enclosed cargo-area accessories: R1S only.
• Rear exterior trim and glass-adjacent items: verify model in the listing.

How to read Rivian accessory fitment before you buy

Fitment language is the single most useful thing on a product page. A listing that names the exact model and trim is far more reliable than one that says "Rivian" alone. When a page lists option types like Style or Side, those options often exist precisely because the two models mount differently.

If a specification you need is missing, treat that as a limitation rather than a guess. Contact the seller or skip the item. Assuming a part fits because the platform is shared is how owners end up with accessories that technically arrive but do not install cleanly.

• Prefer listings that name R1T or R1S explicitly.
• Treat missing fitment details as a reason to ask, not to assume.
• Option types like Side or Style often signal model-specific mounting.

Trade-offs to weigh before ordering

• Shared cabin parts vs. model-specific rear parts: Cabin accessories like the R1T and R1S phone mount are simpler to buy because one part covers both. Rear and bed accessories are the opposite: you must match the model exactly. Buy shared parts with confidence; slow down on anything behind the front seats.
• Convenience vs. fitment risk: A universal-looking sticker or flat decal carries little fitment risk. A shaped mount or bracket carries more, especially when the listing does not name your model. Match the risk of the part to how clearly the listing states fitment.
• Price vs. certainty: A cheaper accessory that does not fit costs more in time and return shipping than a slightly pricier one that is listed for your exact model. Pay for the correct fitment line, not just the lowest price.

Product facts that show the split

• Dashboard Phone Mount | MagSafe Compatible iPhone Holder for Rivian R1T & R1S: The TWRAPS phone holder for Rivian R1T and R1S vehicles offers both MagSafe-compatible magnetic and clamp mounting options for a secure hold. Easy to install without tools or adhesives, it's designed to keep your view unobstructed while ensuring your phone stays in place on bumpy roads. This is the crossover case: a cabin accessory explicitly listed for both models, so R1T and R1S owners can buy the same part. The Style and Side options exist because mounting position varies, so pick those carefully.
• FSD (Autopilot) Bumper Sticker: UV-stable, made in the US, and sized 7.5" x 3.6". A flat, model-agnostic exterior item. Because it is not shaped to a specific bumper or bed, it works on either Rivian as long as you are happy with the placement and surface.
• SnapPlate Front License Plate Holder for Tesla Model 3: Fits Tesla Model 3 across all trims, with year and model variant options, and includes a height-adjustable plate mount. Included as a fitment lesson, not a Rivian recommendation: this holder is Tesla Model 3-only. It shows why you must read the model line instead of assuming a front-end accessory is universal.

Which Rivian owner should buy what

Best for

• R1T owners shopping bed, tailgate, or tonneau-area accessories built for the truck
• R1S owners shopping enclosed cargo-area and rear-specific accessories built for the SUV
• Either owner buying cabin or charging accessories explicitly listed for both R1T and R1S

Not for

• Owners who want one accessory to cover both a truck bed and an SUV cargo area
• Shoppers willing to buy a Rivian part labeled only 'Rivian' without a model line
• Anyone assuming a Tesla-fitment part like the Model 3 license plate holder will work on a Rivian

Shop the fitment line first, the product second. If a listing names your exact Rivian model, you are in good shape. If it does not, ask before you buy. That one habit prevents most R1T and R1S accessory returns.