--- product_id: 13948234 title: "Mercury 31640T4 Replacement Aluminum Anode for Select Mercury/Mariner 30-200hp Outboards and MerCruiser Drives" brand: "mercury" price: "$65.17" currency: USD in_stock: true reviews_count: 8 category: "Mercury" url: https://www.desertcart.us/products/13948234-mercury-31640t4-replacement-aluminum-anode-for-select-mercury-mariner-30 store_origin: US region: United States of America --- # Precision-fit for Mercury 35+ HP engines Compact 6.87 x 5.5 x 3.5 inch design Durable corrosion-resistant anode Mercury 31640T4 Replacement Aluminum Anode for Select Mercury/Mariner 30-200hp Outboards and MerCruiser Drives **Brand:** mercury **Price:** $65.17 **Availability:** ✅ In Stock ## Summary > 🛥️ Protect your ride, own the waves with Mercury’s ultimate trim tab anode! ## Quick Answers - **What is this?** Mercury 31640T4 Replacement Aluminum Anode for Select Mercury/Mariner 30-200hp Outboards and MerCruiser Drives by mercury - **How much does it cost?** $65.17 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/13948234-mercury-31640t4-replacement-aluminum-anode-for-select-mercury-mariner-30) ## Best For - mercury enthusiasts ## Why This Product - Trusted mercury brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lightweight Yet Robust:** At just 12.8 ounces, it offers maximum durability without adding bulk or drag. - • **Perfect Fit Guaranteed:** Precision dimensions ensure seamless installation on Mercury 35 HP and up models—no guesswork needed. - • **Unisex-Ready & User-Friendly:** Designed for all boating enthusiasts, making maintenance effortless and accessible. - • **Trusted Mercury Brand Quality:** Backed by Mercury’s legacy, this anode delivers reliable performance season after season. - • **Engineered for Peak Protection:** Specifically designed to safeguard Mercury trim tabs from corrosion, extending your boat’s lifespan. ## Overview The MERCURY Trim Tab Anode 97 31640T 4 is a corrosion-resistant, precision-engineered accessory designed for Mercury 35 HP and up engines. Compact and lightweight, it ensures optimal protection and longevity for your boat’s trim tabs, backed by Mercury’s trusted manufacturing standards. ## Description Mercury Replacement Aluminum Anode 31640T4 is a sacrificial anode that inhibits galvanic corrosion, protecting your engine from damage in both fresh and saltwater applications. Review: Fin for merc 125 1997 - Fit was easy and install went good, for my 1997 125 merc Review: Used this on my 1985 Marinder 90 HP 6 Cylinder - Fit perfectly on my 1985 Marinder 90 HP 6 Cyl. As others mentioned it does not come with the bolt so if you need a new bolt be sure to order one such as ... https://smile.desertcart.com/gp/product/B00YMTOQQO/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1 ## Features - Fits Mercury/Mariner 30-200hp outboards plus all MerCruiser drives except Bravo drives - Helps protect gearcase housing from corrosion as it provides hydrodynamic trim force to your outboard and sterndrive to aid steering - Each anode is designed for fast and easy replacement with common tools - Mercury parts and accessories are backed by decades of experience in engineering, testing and manufacturing to provide the best fit, function and performance ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004QJJMNM | | Best Sellers Rank | #960,926 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #4,981 in Boat Engine Parts | | Brand Name | MERCURY | | Customer Reviews | 4.2 4.2 out of 5 stars (93) | | Date First Available | September 14, 2012 | | Item Dimensions LxWxH | 6.87 x 5.5 x 3.5 inches | | Item Package Dimensions L x W x H | 7 x 7 x 6 inches | | Item Weight | 12.8 ounces | | Manufacturer | MERCURY | | Model Name | Mercury | | Package Weight | 6.4 ounces | | Part Number | 31640T 4 | | Suggested Users | unisex-adult | ## Images ![Mercury 31640T4 Replacement Aluminum Anode for Select Mercury/Mariner 30-200hp Outboards and MerCruiser Drives - Image 1](https://m.media-amazon.com/images/I/71g82OuRLIL.jpg) ![Mercury 31640T4 Replacement Aluminum Anode for Select Mercury/Mariner 30-200hp Outboards and MerCruiser Drives - Image 2](https://m.media-amazon.com/images/I/61cronrjHVL.jpg) ![Mercury 31640T4 Replacement Aluminum Anode for Select Mercury/Mariner 30-200hp Outboards and MerCruiser Drives - Image 3](https://m.media-amazon.com/images/I/61yReeAU1vL.jpg) ![Mercury 31640T4 Replacement Aluminum Anode for Select Mercury/Mariner 30-200hp Outboards and MerCruiser Drives - Image 4](https://m.media-amazon.com/images/I/61g6pT76KSL.jpg) ![Mercury 31640T4 Replacement Aluminum Anode for Select Mercury/Mariner 30-200hp Outboards and MerCruiser Drives - Image 5](https://m.media-amazon.com/images/I/51bwDuPb8cL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fin for merc 125 1997 *by A***R on December 1, 2024* Fit was easy and install went good, for my 1997 125 merc ### ⭐⭐⭐⭐⭐ Used this on my 1985 Marinder 90 HP 6 Cylinder *by I***Y on May 7, 2019* Fit perfectly on my 1985 Marinder 90 HP 6 Cyl. As others mentioned it does not come with the bolt so if you need a new bolt be sure to order one such as ... https://smile.amazon.com/gp/product/B00YMTOQQO/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1 ### ⭐⭐⭐⭐ Trim Tab Fits Mercruiser Alpha 1 I/O *by C***T on September 25, 2012* This part was a direct fit replacement for my sheared off equipment. I replaced the old one in the matter of 2 min. There is only an inch of clearance or less from the prop. It should be great. I will be on the lake on 9-29-2012. If I don't finish the update assume the product worked perfect with some minor adjustments! If I get back on it went wrong.... ## Frequently Bought Together - MERCURY Trim Tab Anode 97 31640T 4 - Quicksilver 858075Q01 Power Trim and Steering Fluid - 32 Oz. Bottle --- ## 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.us/products/13948234-mercury-31640t4-replacement-aluminum-anode-for-select-mercury-mariner-30](https://www.desertcart.us/products/13948234-mercury-31640t4-replacement-aluminum-anode-for-select-mercury-mariner-30) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-04-26*