--- product_id: 335298117 title: "QFS HFP-TS17-3 Quantum Mercury VST O Ring (QTY 3) Replacement for Mercury Marine Quicksilver Vapor Separator 20HP 25HP 30HP 40HP 50HP 60HP (1984-2021), Replaces 898103T25" brand: "qfs" price: "€ 51.99" currency: EUR in_stock: true reviews_count: 5 category: "Qfs" url: https://www.desertcart.com.cy/products/335298117-qfs-hfp-ts17-3-quantum-mercury-vst-o-ring-qty store_origin: CY region: Cyprus --- # Ethanol & heat resistant Drop-in replacement, no mods 100% OEM direct fit QFS HFP-TS17-3 Quantum Mercury VST O Ring (QTY 3) Replacement for Mercury Marine Quicksilver Vapor Separator 20HP 25HP 30HP 40HP 50HP 60HP (1984-2021), Replaces 898103T25 **Brand:** qfs **Price:** € 51.99 **Availability:** ✅ In Stock ## Summary > 🔩 Seal the deal with confidence—OEM precision for peak marine performance! ## Quick Answers - **What is this?** QFS HFP-TS17-3 Quantum Mercury VST O Ring (QTY 3) Replacement for Mercury Marine Quicksilver Vapor Separator 20HP 25HP 30HP 40HP 50HP 60HP (1984-2021), Replaces 898103T25 by qfs - **How much does it cost?** € 51.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/335298117-qfs-hfp-ts17-3-quantum-mercury-vst-o-ring-qty) ## Best For - qfs enthusiasts ## Why This Product - Trusted qfs brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision OEM Fit:** Guaranteed seamless compatibility with Mercury Marine specs—no trimming or guesswork needed. - • **Safety First Seal:** Prevents fuel leaks and vapor loss, protecting your engine and environment from costly hazards. - • **Effortless Installation:** Drop-in design means quick, hassle-free replacement during fuel pump service—save time and avoid future rework. - • **Versatile Compatibility:** Fits a wide range of Mercury 4-cylinder EFI outboards from 1984 to 2021, covering popular 20HP to 60HP models. - • **Durability Under Pressure:** Engineered from premium rubber to resist swelling, cracking, and hardening even with ethanol fuels and extreme temps. ## Overview The QFS HFP-TS17-3 Quantum Mercury VST O Ring is a premium, drop-in replacement tank seal designed to meet exact Mercury Marine OEM specifications. Compatible with Mercury 4-cylinder EFI outboards from 1984 to 2021 (20HP-60HP), it ensures a perfect fit without modification. Crafted from durable rubber, it resists ethanol fuel damage and extreme temperatures, preventing leaks and vapor loss to maintain engine safety and efficiency. ## Description Replacing a worn or hardened tank seal is essential to prevent fuel leaks, vapor loss, and potential safety hazards. These seals are built to OEM specifications for reliable fit and performance, ensuring proper sealing without trimming or modification. Made from durable materials, they resist swelling, cracking, and hardening caused by ethanol-blended fuels and extreme temperatures. Always replace the tank seal during fuel pump service to maintain system integrity and avoid future rework. These tank seals are compatible with Mercury 35 HP EFI , 40 HP EFI/EFI /EFI SeaPro, 50 HP EFI, and 60 HP EFI/EFI SeaPro outboards Fits Mercury 4-cylinder EFI outboards with serial numbers in the following ranges: 2002–2003: 0T409000–0T819999 2004–2005: 1B000001–1B099999 2006–2007: 1B100000–1B199999 2008–2009: 1B200000–1B399999. Review: Make sure you check it very closely - I returned the item,it was to big for mine Review: VST tank mercury outboard - Exactly what I ordered ## Features - Drop-in replacement, 100% Direct OEM fit - no modification necessary, all parts match OEM specifications. - Mercury VST O Ring (QTY 3) - Replaces 892267A51, 898101T67, 892267530, 892267A51, 898103T25 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B083RZZ6HG | | Brand | QFS | | Brand Name | QFS | | Customer Reviews | 4.4 out of 5 stars 68 Reviews | | Included Components | tank seal | | Item Shape | drop | | Item Thickness | 1.5 Millimeters | | Item Weight | 9 g | | Item thickness | 1.5 Millimeters | | Manufacturer | Quantum Fuel Systems | | Material | Rubber | | Material Type | Rubber | | Model | HFP-TS17-3 | | Number of Items | 1 | | Part Number | HFP-TS17-3 | | Shape | drop | ## Product Details - **Brand:** QFS - **Item thickness:** 1.5 Millimeters - **Manufacturer:** Quantum Fuel Systems - **Material:** Rubber - **Shape:** drop ## Images ![QFS HFP-TS17-3 Quantum Mercury VST O Ring (QTY 3) Replacement for Mercury Marine Quicksilver Vapor Separator 20HP 25HP 30HP 40HP 50HP 60HP (1984-2021), Replaces 898103T25 - Image 1](https://m.media-amazon.com/images/I/61kE22J8kJL.jpg) ![QFS HFP-TS17-3 Quantum Mercury VST O Ring (QTY 3) Replacement for Mercury Marine Quicksilver Vapor Separator 20HP 25HP 30HP 40HP 50HP 60HP (1984-2021), Replaces 898103T25 - Image 2](https://m.media-amazon.com/images/I/41t9VWdNB8L.jpg) ![QFS HFP-TS17-3 Quantum Mercury VST O Ring (QTY 3) Replacement for Mercury Marine Quicksilver Vapor Separator 20HP 25HP 30HP 40HP 50HP 60HP (1984-2021), Replaces 898103T25 - Image 3](https://m.media-amazon.com/images/I/71enUiw86XL.jpg) ![QFS HFP-TS17-3 Quantum Mercury VST O Ring (QTY 3) Replacement for Mercury Marine Quicksilver Vapor Separator 20HP 25HP 30HP 40HP 50HP 60HP (1984-2021), Replaces 898103T25 - Image 4](https://m.media-amazon.com/images/I/81wEScmdP8L.jpg) ![QFS HFP-TS17-3 Quantum Mercury VST O Ring (QTY 3) Replacement for Mercury Marine Quicksilver Vapor Separator 20HP 25HP 30HP 40HP 50HP 60HP (1984-2021), Replaces 898103T25 - Image 5](https://m.media-amazon.com/images/I/41bMGWSZ96L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Make sure you check it very closely *by B***S on 29 May 2026* I returned the item,it was to big for mine ### ⭐⭐⭐⭐⭐ VST tank mercury outboard *by M***G on 31 August 2025* Exactly what I ordered ### ⭐⭐⭐⭐ Not sure exact size *by S***I on 2 August 2024* Giving a 4 because size/layout fit perfect, but when I put the 2 housing parts together it was almost like metal to metal. So it appeared the diameter of the rubber was smaller than the original. Returned the gaskets and reused the old one...along with some gasket sealer. ## Frequently Bought Together - QFS Fuel Pump Tank Seal/Gasket (Qty 3) Replacement for Quicksilver Mariner/Mercury/Mercury Race Vapor Separator 20HP 25HP 30HP 40HP 50HP 60HP, 2002-2012 - Mercury Fuel Pump MerCruiser Outboard 20 30 35 40 45 60 HP 4 Stroke 892267A51 - Quicksilver by Mercury Marine 879884T Cartridge Type Fuel Filter Assembly for Mercury and Mariner Outboards --- ## 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.com.cy/products/335298117-qfs-hfp-ts17-3-quantum-mercury-vst-o-ring-qty](https://www.desertcart.com.cy/products/335298117-qfs-hfp-ts17-3-quantum-mercury-vst-o-ring-qty) --- *Product available on Desertcart Cyprus* *Store origin: CY* *Last updated: 2026-08-14*