--- product_id: 39698583 title: "TOPAZ 17111712788 Coolant Expansion Tank Bleeder Screw with O-Ring for BMW E46 E90 Mini Cooper (Pack of 2)" brand: "topaz" price: "76.20 DT" currency: TND in_stock: true reviews_count: 8 url: https://www.desertcart.tn/products/39698583-topaz-17111712788-coolant-expansion-tank-bleeder-screw-with-o-ring store_origin: TN region: Tunisia --- # Fully threaded seal OEM precision fit Durable alloy steel TOPAZ 17111712788 Coolant Expansion Tank Bleeder Screw with O-Ring for BMW E46 E90 Mini Cooper (Pack of 2) **Brand:** topaz **Price:** 76.20 DT **Availability:** ✅ In Stock ## Summary > 🛠️ Upgrade your ride’s cooling game with precision and durability! ## Quick Answers - **What is this?** TOPAZ 17111712788 Coolant Expansion Tank Bleeder Screw with O-Ring for BMW E46 E90 Mini Cooper (Pack of 2) by topaz - **How much does it cost?** 76.20 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/39698583-topaz-17111712788-coolant-expansion-tank-bleeder-screw-with-o-ring) ## Best For - topaz enthusiasts ## Why This Product - Trusted topaz brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Perfect OEM Match:** Seamlessly restores your BMW or Mini Cooper’s original coolant system integrity. - • **Premium Alloy Steel:** Engineered for long-lasting durability and corrosion resistance under high temperatures. - • **Pack of 2 Convenience:** Double up for peace of mind or future maintenance without extra hassle. - • **Trusted TOPAZ Quality:** Crafted with ABS material and rigorous standards for reliable performance every time. - • **Complete Thread Coverage:** Ensures a secure, leak-proof seal to keep your engine running cool and safe. ## Overview The TOPAZ 17111712788 Coolant Expansion Tank Bleeder Screw with O-Ring is a high-quality OEM replacement part designed specifically for BMW E46, E90, and Mini Cooper models. Made from durable alloy steel with full thread coverage and ABS components, this pack of two screws ensures a perfect, leak-proof fit that restores your vehicle’s coolant system efficiency and reliability. ## Description Compatible with vehicles:1984 1985 1991 - 1998 318i1991 - 1997 318is1995 - 1999 318ti2000 323Ci1998 - 2000 323i1998 1999 323is2001 - 2005 325Ci1992 - 2005 325i1992 - 1995 325is2001 - 2005 325xi2000 328Ci1996 - 2000 328i1996 - 1999 328is2001 - 2005 330Ci , 330i , 330xi1989 - 1995 2001 - 2003 525i1993 525iT1997 - 2000 528i1994 1995 2001 - 2003 530i1988 - 1993 535i1994 1995 1997 - 2003 540i1995 1997 - 2001 740i1995 - 2001 750iL ,740iL1994 - 1997 840Ci1993 - 1997 850Ci1994 1995 850CSi1991 1992 850i1994 - 2006 M31991 - 2003 M52004 2005 X32000 - 2005 X51996 - 2002 Z32003 - 2005 Z4Warranty: This item is covered by our 12 months unlimited mileage warranty. 1 - 3 Months 100% Refund or Replacement 4 - 12 Months 90%-10% Refund Over 12 Months Not refund Package Included: 1 x Bleed Screw Kit ## Features - For BMW E46 E90 E39 E53 E83 E85 - We always adhere to the most exceptional standards of materials and workmanship while enabling our customers to enjoy a comfortable service. - Restores proper coolant bleeder screw sealing - Match the Original Car. Please Verify Fitment (Model / Year) before Purchasing this Product - Replacement OEM ( Original Equipment Part) Number: 17111712788, 11537793373, 17 11 1 712 788, 11 53 7 793 373. Other Part Number: 902-404, 902404 ## Technical Specifications | Specification | Value | |---------------|-------| | Material | Acrylonitrile Butadiene Styrene | | Head Style | Fillister | | Metal Type | Alloy Steel | | Brand | TOPAZ | | Item Weight | 1 Kilograms | | Thread Coverage | Fully Threaded | | Manufacturer | TOPAZ | | Item Weight | 2.2 pounds | | Package Dimensions | 3.94 x 3.82 x 0.98 inches | | Is Discontinued By Manufacturer | No | | Manufacturer Part Number | CPOT1227003 | | OEM Part Number | 17 11 1 712 788,11 53 7 793 373, 17111712788,11537793373 | ## Product Details - **Material:** Acrylonitrile Butadiene Styrene - **Drive System:** Square - **Head Style:** Fillister - **Exterior Finish:** Plain - **Metal Type:** Alloy Steel ## Images ![TOPAZ 17111712788 Coolant Expansion Tank Bleeder Screw with O-Ring for BMW E46 E90 Mini Cooper (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/71d4mUcTSqL.jpg) ![TOPAZ 17111712788 Coolant Expansion Tank Bleeder Screw with O-Ring for BMW E46 E90 Mini Cooper (Pack of 2) - Image 2](https://m.media-amazon.com/images/I/415uK8l9uqL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Craftsmanship *by P***Z on December 22, 2019* Worked real great just like the original one ### ⭐⭐⭐⭐⭐ Something you should have two of! *by A***R on June 13, 2019* Was Just What I Needed to Complete A Job! ### ⭐ NOT COMPATIBLE with older E9x N52/N54! *by B***T on February 11, 2022* Tilted head, shorter shank. Literally looks like it's going in crooked, because if you look carefully you can see the head is "tilted". The OEM screw is straight, with a longer shank (more thread). I don't know how this is supposed to work for anything, because it has an O-ring under the head.I'm only not going to return it because I stole the O-rings off for later. $10 for two O-rings is about right for BMW :PI can't link you to it, but RealOEM is your friend. Look up your vehicle, and make sure the part number is correct. However, things can still go wrong such as here. This part claims to be 17111712788 but it is not compatible with 11537793373 as RealOEM says. ## Frequently Bought Together - TOPAZ 17111712788 Coolant Expansion Tank Bleeder Screw with O-Ring for BMW E46 E90 Mini Cooper (Pack of 2) - BMW Spark Plugs, Plug Set Laser Platinum NGK OEM 3199 (6pcs) - A-Premium Engine Coolant Overflow Recovery Reservoir Tank - W/Sensor & Cap [DOHC, 6Cyl 2.2 2.5 2.8 3.0L] Compatible with BMW E46-99-06-320i, 325xi, 328i, 330xi, X3, X5 & More, for# 17137787039 --- ## 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.tn/products/39698583-topaz-17111712788-coolant-expansion-tank-bleeder-screw-with-o-ring](https://www.desertcart.tn/products/39698583-topaz-17111712788-coolant-expansion-tank-bleeder-screw-with-o-ring) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-16*