Automotive Parts & Accessories
Amazon Basics Car Cup Holder Expander with Adjustable Base, Securely Holds Large Bottles 3.4 to 3.8 in Diameter, Compatible with Yeti, Hydro Flask, Easy Installation, Black
Best for: owners of large insulated drinkware in standard car holders
ASIN: B08L9GWSPB
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Brand: Amazon Basics
This adjustable adapter expands standard vehicle cup holders to securely accommodate large-diameter bottles like Yeti and Hydro Flask tumblers. It features a locking mechanism with soft rubber grips to prevent wobbling during travel, though it requires measuring your specific holder for compatibility.
Key features
- Designed to securely hold bottles and mugs between 3.4–3.8 inches in diameter, this adjustable car cup holder fits popular brands including Yeti Ramblers (20, 26, and 30 oz), Hydro Flasks (32 and 40 oz), and Nalgenes (30, 32, 38, and 48 oz). Note: Not compatible with Yeti Rambler 14 oz mugs.
- The expandable base fits most standard vehicle cup holders (2.6–3.9 inches inner diameter) and locks firmly in place for stability on rough roads.Please do not over-tighten the base during installation to avoid damaging your car’s cup holder
- This model is not recommended for certain vehicle models with non-standard cup holder shapes, such as 2019–2023 Toyota RAV4, 2009–2018 Subaru Forester, and 2020–2024 Subaru Outback. Does not fit extra-wide, irregular, or enclosed cup holders.
- A tapered lower section and soft rubber grips ensure a snug fit and prevent wobbling, keeping your drink steady even on sharp turns or bumpy terrain.
- Crafted from heavy-duty ABS plastic with a scratch-resistant matte finish. Quick, tool-free setup—just insert, twist, and lock.For best results, measure your cup holder before purchase to confirm compatibility.
Price on Amazon
$10.49
Price as of Sep 4, 2026 9:15 PM UTC
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
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Frequently Asked Questions
Which specific large-capacity water bottles are compatible with this expander?
This device securely holds bottles and mugs between 3.4 and 3.8 inches in diameter, including Yeti Rambler sizes of 20, 26, and 30 oz, as well as Hydro Flask sizes of 32 and 40 oz. It also fits Nalgene bottles with capacities of 30, 32, 38, and 48 oz.
Does this cup holder expander fit all standard vehicle cup holders?
The expandable base is designed to fit most standard vehicle cup holders with an inner diameter between 2.6 and 3.9 inches. It does not fit extra-wide, irregular, or enclosed cup holders, so measuring your specific holder before purchase is recommended.
Are there any vehicle models where this expander should not be used?
This model is not recommended for certain vehicles with non-standard cup holder shapes, specifically the 2019–2023 Toyota RAV4 and the 2009–2018 Subaru Forester or 2020–2024 Subaru Outback. It is also incompatible with Yeti Rambler 14 oz mugs.
How does this expander prevent drinks from wobbling during driving?
A tapered lower section and soft rubber grips ensure a snug fit within the car's cup holder to prevent wobbling. This design keeps your drink steady even when navigating sharp turns or bumpy terrain.
Specifications
| Model | DS-CH001 |
| Color | black |
| Size | 3.4 to 3.8 in |
| Dimensions | 4.4 inches × 4.4 Inches × 6.25 inches (0.630625 pounds) |
| UPC | 672352804065 |
| EAN | 0672352804065 |
| ASIN | B08L9GWSPB |
| Brand | Amazon Basics |
| Category | Automotive Parts & Accessories |
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Last reviewed
September 4, 2026
Product listing details, features, and specs.
Editorial approach
Curated listings of Amazon Basics products with LLM-assisted summaries. Every specification, feature, and price is sourced from Amazon's Creators API — we don't invent reviews or ratings.
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As an Amazon Associate, I earn from qualifying purchases.
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