--- product_id: 431604260 title: "Radiator Cap Replace 16401-31650 1640131650 for Toyota 4Runner FJ Cruiser Tacoma for Lexus GX470 IS250 IS350 GS350 GS450h" brand: "hosairy" price: "1046864₫" currency: VND in_stock: true reviews_count: 5 category: "Hosairy" url: https://www.desertcart.vn/products/431604260-radiator-cap-replace-16401-31650-1640131650-for-toyota-4runner-fj store_origin: VN region: Vietnam --- # Maintains optimal cooling pressure Precision OE-style fit Durable premium metal build Radiator Cap Replace 16401-31650 1640131650 for Toyota 4Runner FJ Cruiser Tacoma for Lexus GX470 IS250 IS350 GS350 GS450h **Brand:** hosairy **Price:** 1046864₫ **Availability:** ✅ In Stock ## Summary > 🛠️ Lock in your engine’s cool factor with precision pressure control! ## Quick Answers - **What is this?** Radiator Cap Replace 16401-31650 1640131650 for Toyota 4Runner FJ Cruiser Tacoma for Lexus GX470 IS250 IS350 GS350 GS450h by hosairy - **How much does it cost?** 1046864₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/431604260-radiator-cap-replace-16401-31650-1640131650-for-toyota-4runner-fj) ## Best For - hosairy enthusiasts ## Why This Product - Trusted hosairy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pressure Perfected:** Engineered to maintain exact radiator pressure, preventing overheating and coolant loss. - • **Seamless Compatibility:** Fits a wide range of Toyota & Lexus models (2003-2012) for perfect integration. - • **Durability Meets Design:** Crafted from premium metal for long-lasting performance under extreme conditions. - • **Easy Install, Instant Relief:** Simple screw-in design lets you replace your old cap hassle-free and get back on the road fast. - • **Trusted Aftermarket Excellence:** High-quality HOSAIRY replacement that meets or exceeds original equipment standards. ## Overview The HOSAIRY Radiator Cap 16401-31650 is a premium aftermarket replacement designed for select Toyota and Lexus models from 2003 to 2012. It ensures optimal cooling system pressure to prevent overheating and coolant loss, featuring a durable metal construction and OE-style fit for reliable, long-lasting performance. Easy to install and engineered to meet or exceed original equipment standards, this radiator cap is essential for maintaining your vehicle’s engine health and efficiency. ## Description Remark: It is extremely important to always make sure to allow the engine to cool down before removing the radiator cap, once you have a replacement and your engine is cool, simply unscrew the old cap, and install the new by screwing it down. Replace OE#: Replace for 16401-31650, 1640131650 Compatible Vehicles: 2003-2009 for Toyota 4Runner 4.0L V6 ( To 01/2009 ) 2010 for Toyota 4Runner 2.7L L4 2007-2011 for Toyota FJ Cruiser 2005-2011 for Toyota Tacoma 2006 for Lexus GS300 2007-2011 for Lexus GS350 2007 for Lexus GS430 2007-2011 for Lexus GS450h 2010-2011 for Lexus GX460 2003-2009 for Lexus GX470 2006-2012 for Lexus IS250 2006-2012 for Lexus IS350 Package Includes: 1 x Radiator Cap Notes: * This is NOT a OEM Part, it's a Aftermarket replacement part manufactured by HOSAIRY. * Please have a confirm with your vehicle information in the above compatibility section and description. To make sure you have purchase the right item for your vehicle. Review: The original cap on my '12 Lexus IS 250 finally gave up. The seals inside hardened and began to crack due to age, I'm sure the chemicals it keeps under pressure at above boiling temperatures and the Arizona heat, and my car lost the pressure required for the coolant system. Needless to say I started experiencing strange readings from my coolant temp guage. After diagnosis it turned out I needed a new cap to seal properly, and ensure system had proper amount of coolant and purge system of air. Everything is back to normal and works as should. Works and fits as described! Review: I’ve gone through a lot of rad caps on my 2009 Toyota Tacoma and this one works the best. I never knew how important it was to get a good one till I got this one that finally fixed my cooling problems ## Features - [Compatible Vehicles] 2006 for Lexus GS300; 2007-2011 for Lexus GS350; 2007 for Lexus GS430; 2007-2011 for Lexus GS450h; 2010-2011 for Lexus GX460; 2003-2009 for Lexus GX470; 2006-2012 for Lexus IS250; 2006-2012 for Lexus IS350 - [Compatible Vehicles] 2003-2009 for Toyota 4Runner 4.0L V6 ( To 01/2009 ); 2010 for Toyota 4Runner 2.7L L4; 2007-2011 for Toyota FJ Cruiser; 2005-2011 for Toyota Tacoma; Replace OE# for 16401-31650, 1640131650 radiator cap - [Function] HOSAIRY Radiator Cap designed to seal the top of the radiator filler neck, It can hold the coolant inside the radiator and prevent coolant loss, Also works as a two-way valve that keep the right pressure inside so the radiator does it work correctly. If the pressure isn't maintained, coolant will boil and evaporate, the engine will at risk of overheating. Symptoms of a Bad Radiator Cap: air enters the system, low coolant level, coolant leaks, overflowing reservoir, overheating engine. - [Features] HOSAIRY Replacement Radiator Cap is Professional, High-quality OE style and meet or exceed original equipment performance. Made of premium materials for durability. Designed for function on open cooling systems and overflow reservoir type systems. It is extremely important to always make sure to allow the engine to cool down before removing the radiator cap, once you have a replacement and your engine is cool, simply unscrew the old cap, and install the new by screwing it down. - [Notes] Please Check the part number and the model and year of your car before you purchase. This is NOT an OEM Part, it's an Aftermarket replacement part manufactured by HOSAIRY. Professional Installation is recommended, If the Radiator Cap fails on your vehicle, just contact us for a replacement. Any question, please feel free to e-mail us. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09QJZKYV6 | | Best Sellers Rank | #12,039 in Automotive ( See Top 100 in Automotive ) #13 in Automotive Radiator Caps Standard | | Brand Name | HOSAIRY | | Closure Type | Screw-In | | Color | Silver | | Compatible with Vehicle Type | Car | | Customer Reviews | 4.6 4.6 out of 5 stars (57) | | Exterior Finish | Silver | | Included Components | 1 PC Radiator Cap | | Item Type Name | Radiator Cap | | Item Weight | 0.03 Kilograms | | Manufacturer | HOSAIRY | | Manufacturer Part Number | 121040 | | Material Type | Metal | | Model Number | 16401-31650, 1640131650 | | Style Name | Modern | ## Product Details - **Brand:** HOSAIRY - **Colour:** Silver - **Exterior finish:** Silver - **Material:** Metal - **Vehicle service type:** Car ## Images ![Radiator Cap Replace 16401-31650 1640131650 for Toyota 4Runner FJ Cruiser Tacoma for Lexus GX470 IS250 IS350 GS350 GS450h - Image 1](https://m.media-amazon.com/images/I/61wymvafrcL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by S***A on 18 July 2024* The original cap on my '12 Lexus IS 250 finally gave up. The seals inside hardened and began to crack due to age, I'm sure the chemicals it keeps under pressure at above boiling temperatures and the Arizona heat, and my car lost the pressure required for the coolant system. Needless to say I started experiencing strange readings from my coolant temp guage. After diagnosis it turned out I needed a new cap to seal properly, and ensure system had proper amount of coolant and purge system of air. Everything is back to normal and works as should. Works and fits as described! ### ⭐⭐⭐⭐⭐ Review *by E***N on 17 November 2025* I’ve gone through a lot of rad caps on my 2009 Toyota Tacoma and this one works the best. I never knew how important it was to get a good one till I got this one that finally fixed my cooling problems ### ⭐⭐⭐⭐⭐ Review *by B***Z on 1 June 2025* Cae como la original. ## Frequently Bought Together - HOSAIRY Radiator Cap Replace 16401-31650 1640131650 for Toyota 4Runner FJ Cruiser Tacoma for Lexus GX470 IS250 IS350 GS350 GS450h - AISIN WPT-137 New Engine Water Pump with Gaskets - Compatible with Select Lexus GS300, GS350, GS450h, IS250, IS300, IS350, RC300, RC350 - AISIN THT-004 Engine Coolant Thermostat with Housing and Gasket - Compatible with Select Lexus GS300, GS350, GS450h, IS250, IS300, IS350, RC300, RC350 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/431604260-radiator-cap-replace-16401-31650-1640131650-for-toyota-4runner-fj](https://www.desertcart.vn/products/431604260-radiator-cap-replace-16401-31650-1640131650-for-toyota-4runner-fj) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-16*