--- product_id: 297613928 title: "Manifold Engine Block Drain Plug Kit Replaces Sierra 18-4226 for Mercruiser 22-806608a02 Compatible with GLM 13992 Pack of 5" brand: "wlfinkmo" price: "฿1265" currency: THB in_stock: true reviews_count: 5 category: "Wlfinkmo" url: https://www.desertcart.co.th/products/297613928-manifold-engine-block-drain-plug-kit-replaces-sierra-18-4226 store_origin: TH region: Thailand --- # Leak-proof O-ring seal Universal Mercruiser compatibility 5-pack precision fit Manifold Engine Block Drain Plug Kit Replaces Sierra 18-4226 for Mercruiser 22-806608a02 Compatible with GLM 13992 Pack of 5 **Brand:** wlfinkmo **Price:** ฿1265 **Availability:** ✅ In Stock ## Summary > 💧 Seal the deal with flawless engine drainage! ## Quick Answers - **What is this?** Manifold Engine Block Drain Plug Kit Replaces Sierra 18-4226 for Mercruiser 22-806608a02 Compatible with GLM 13992 Pack of 5 by wlfinkmo - **How much does it cost?** ฿1265 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/297613928-manifold-engine-block-drain-plug-kit-replaces-sierra-18-4226) ## Best For - wlfinkmo enthusiasts ## Why This Product - Trusted wlfinkmo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Pros:** Highly rated with 4.6 stars from over 1,100 users who rely on it for leak-free engine care. - • **Durable & Reliable:** High-quality plastic construction ensures long-lasting performance under marine conditions. - • **Value-Packed 5-Pack:** Includes five drain plugs plus O-rings—never worry about losing one during maintenance again. - • **Effortless Maintenance:** Quick and easy to install, making winterization and engine block draining hassle-free. - • **Perfect Fit Every Time:** Engineered to replace Sierra 18-4226 and compatible with multiple Mercruiser models for seamless installation. ## Overview The WLFINKMO Manifold Engine Block Drain Plug Kit is a 5-pack replacement set designed for Mercruiser and Mercury engines, compatible with Sierra 18-4226 and related models. Featuring durable plastic plugs with O-rings, it ensures a leak-proof seal for engine block and manifold drainage. This kit simplifies maintenance with easy installation and offers excellent value with extra plugs included, making it a trusted choice for marine engine upkeep. ## Description The Replacement for Sierra 18-4226 Drain Plug is interchangeable with the following: For GLM 13992 For Malloy 9-41203 For Mercruiser 22-806608A1, 22-806608A02 Review: We used this 5-pack of blue plastic drain plugs on our 1997 Bayliner Capri 1850LS with a Mercury MerCruiser 4.3L LH marine engine, and they worked perfectly. The fit was spot on, threading in snugly with no leaks or issues. They feel durable for plastic and seem like a solid replacement for the originals. I really like that the pack includes extras—great value for the price, especially if you tend to misplace one during winterization or maintenance. Installation was simple, and they sealed up the exhaust manifold and block drains exactly as expected. If you’ve got a MerCruiser setup like ours, this kit is a safe bet. Review: Good product . Working well ## Features - FITS: Fits for Mercruiser for Mercury engines - REPLACES: For Sierra 18-4226, 18 4226, 184226, for GLM 13992, for Malloy 9-41203, 9 41203, 941203, for Mercruiser 22-806608A1, 22 806608A1, 22806608A1, 22-806608A02, 22 806608A02, 22806608A02 - CONTENT: 5 pack for Mercury for Mercruiser closed cooling drain plug & 5 O-ring - FUNCTION: Drain plug kit used to drain your engine block and manifold ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08F4SGPR9 | | Best Sellers Rank | #101,441 in Automotive ( See Top 100 in Automotive ) #117 in Car Engine Oil Drain Plugs | | Brand | WLFINKMO | | Customer Reviews | 4.6 4.6 out of 5 stars (1,112) | | Date First Available | 7 November 2020 | | Item Weight | 32 g | | Item model number | 1 | | Manufacturer | WLFINKMO | | Manufacturer Part Number | Auto WJ25 | | Package Dimensions | 14.1 x 11.51 x 1.9 cm; 32 g | ## Product Details - **Brand:** WLFINKMO - **Colour:** Blue - **Item weight:** 0.03 Kilograms - **Material:** Metal - **UPC:** 192236549030 ## Images ![Manifold Engine Block Drain Plug Kit Replaces Sierra 18-4226 for Mercruiser 22-806608a02 Compatible with GLM 13992 Pack of 5 - Image 1](https://m.media-amazon.com/images/I/61J1cjGWXVL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***L on 16 July 2025* We used this 5-pack of blue plastic drain plugs on our 1997 Bayliner Capri 1850LS with a Mercury MerCruiser 4.3L LH marine engine, and they worked perfectly. The fit was spot on, threading in snugly with no leaks or issues. They feel durable for plastic and seem like a solid replacement for the originals. I really like that the pack includes extras—great value for the price, especially if you tend to misplace one during winterization or maintenance. Installation was simple, and they sealed up the exhaust manifold and block drains exactly as expected. If you’ve got a MerCruiser setup like ours, this kit is a safe bet. ### ⭐⭐⭐⭐⭐ Review *by T***. on 7 May 2024* Good product . Working well ### ⭐⭐⭐⭐⭐ Review *by T***O on 11 August 2025* Direct replacement for Mercruiser OEM plugs. Some a little harder to install so use those in the exhaust manifold. --- ## 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.co.th/products/297613928-manifold-engine-block-drain-plug-kit-replaces-sierra-18-4226](https://www.desertcart.co.th/products/297613928-manifold-engine-block-drain-plug-kit-replaces-sierra-18-4226) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-29*