--- product_id: 13634275 title: "Quicksilver 75692Q2 Replacement Thermostat, Mercury Outboards, 135-200hp" brand: "quicksilver" price: "$116.33" currency: USD in_stock: true reviews_count: 9 category: "Quicksilver" url: https://www.desertcart.us/products/13634275-quicksilver-75692q2-replacement-thermostat-mercury-outboards-135-200hp store_origin: US region: United States of America --- # Maintains optimal engine temperature Precision fit for Mercury 135-200hp engines Includes dual thermostats & gaskets kit Quicksilver 75692Q2 Replacement Thermostat, Mercury Outboards, 135-200hp **Brand:** quicksilver **Price:** $116.33 **Availability:** βœ… In Stock ## Summary > πŸ”₯ Keep your Mercury engine cool and cruising with Quicksilver precision! βš“ ## Quick Answers - **What is this?** Quicksilver 75692Q2 Replacement Thermostat, Mercury Outboards, 135-200hp by quicksilver - **How much does it cost?** $116.33 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/13634275-quicksilver-75692q2-replacement-thermostat-mercury-outboards-135-200hp) ## Best For - quicksilver enthusiasts ## Why This Product - Trusted quicksilver brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Optimal Cooling Control:** Maintains precise engine temperature to prevent overheating and maximize fuel efficiency, protecting your investment on every voyage. - β€’ **Dual Thermostat & Gasket Kit:** Complete replacement set with two thermostats and two rubber gaskets for hassle-free installation and long-lasting reliability. - β€’ **Trusted Marine Industry Leader:** Backed by Quicksilver’s 65+ years of marine expertise, delivering OEM quality parts that outperform aftermarket alternatives. - β€’ **Engineered for Peak Performance:** Specifically designed for Mercury and Mariner V6 outboards (135-200hp) ensuring flawless compatibility and efficiency. - β€’ **Easy Installation & Peace of Mind:** Clear fitment guidelines and a 1-year warranty make upgrading your engine cooling system straightforward and worry-free. ## Overview The Quicksilver 75692Q2 Replacement Thermostat is a premium OEM part designed for Mercury and Mariner 135-200hp V6 outboards. This kit includes two thermostats and gaskets, ensuring optimal engine temperature control for peak performance and fuel efficiency. Trusted for over 65 years, Quicksilver delivers marine-grade durability and precision fitment, backed by a 1-year warranty for reliable, worry-free operation. ## Description Thermostat 75692Q2 is for 135-150hp V6 Mercury and Mariner outboards with serial No. A9046446 and higher; 175hp Mercury and Mariner V6 outboards with serial No. C100861 and higher; 200hp Mercury and Mariner V6 outboards with serial No. 6435503 and higher. See your owner's manual or service manual for specific applications and installation instructions. The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine Original Equipment replacement engine parts, oils, and accessories, but also works to serve all Original Equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind. Review: Fixed my over temp warning issue. - Easy to change and work like new. No more over temp warning at idle. Review: Fits 1988 Sea Ray V-135 2 stroke (Mercury) - For those of you with the 135 hp mercury that was branded as the "Sea Ray 135" and paint matched to the boat (i.e. Seville's and some others) this is the 147 degree thermostat for that motor. My Seville is an '88 and It's difficult to cross reference the serial numbers on those motors when searching for parts. Only buy Quicksilver parts for these motors. Happy to find them on desertcart because Boats.net as an example, is not clear on what you're getting. ## Features - Kit includes two thermostats and two rubber gaskets (one for each thermostat) - Use only the temperature thermostat listed in your owner's manual or service manual - Proper engine cooling temperature ensures peak performance and higest efficiency - See your owner's manual for removal of non-functioning thermostat and replacement of new thermostat ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001HBQUIC | | Best Sellers Rank | #176,528 in Automotive ( See Top 100 in Automotive ) #287 in Automotive Replacement Engine Thermostats | | Brand Name | Quicksilver | | Color | Black | | Customer Reviews | 4.7 4.7 out of 5 stars (124) | | Date First Available | February 27, 2010 | | Included Components | End Product & Information | | Item Dimensions LxWxH | 5.2 x 2.2 x 1.65 inches | | Item Package Dimensions L x W x H | 4.13 x 1.81 x 1.38 inches | | Item Weight | 0.01 Pounds | | Manufacturer | Quicksilver | | Material | Stainless Steel | | Model Name | 75692Q2 | | Number of Items | 1 | | Package Weight | 0.06 Kilograms | | Part Number | 75692Q 2 | | Style | Minimalist | | Warranty Description | 1-Year Warranty | ## Images ![Quicksilver 75692Q2 Replacement Thermostat, Mercury Outboards, 135-200hp - Image 1](https://m.media-amazon.com/images/I/61u3ZFIHfyL.jpg) ## Questions & Answers **Q: Are rubber gaskets included?** A: No.....there were no gaskets..... I thought there would be....picture showed gaskets. **Q: Will this fit a 06 135 mercury optimax** A: Hello! No, the correct replacement thermostat for a 2006 Mercury 135 Optimax is part number 833072003. Thank you, Quicksilver Support Team **Q: will this fit a mercury 150 hp 2 stroke?** A: You do not state year motor. **Q: Will it fit 200hp 2000 2stroke outboard** A: If yours is an Optimax type, with direct fuel and oil injection, yes. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fixed my over temp warning issue. *by A***R on June 9, 2025* Easy to change and work like new. No more over temp warning at idle. ### ⭐⭐⭐⭐⭐ Fits 1988 Sea Ray V-135 2 stroke (Mercury) *by G***L on August 3, 2024* For those of you with the 135 hp mercury that was branded as the "Sea Ray 135" and paint matched to the boat (i.e. Seville's and some others) this is the 147 degree thermostat for that motor. My Seville is an '88 and It's difficult to cross reference the serial numbers on those motors when searching for parts. Only buy Quicksilver parts for these motors. Happy to find them on Amazon because Boats.net as an example, is not clear on what you're getting. ### ⭐⭐⭐⭐⭐ Nice item, fast shipping *by I***E on August 19, 2025* Nice item, fast shipping ## Frequently Bought Together - Quicksilver 75692Q2 Replacement Thermostat, Mercury Outboards, 135-200hp - Quicksilver 96148Q8 Water Pump Repair Kit for Mercury and Mariner Outboards and MerCruiser Stern Drives - Quicksilver 92-858064Q01 High Performance Gear Lube (6/1Qt) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/13634275-quicksilver-75692q2-replacement-thermostat-mercury-outboards-135-200hp](https://www.desertcart.us/products/13634275-quicksilver-75692q2-replacement-thermostat-mercury-outboards-135-200hp) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-21*