--- product_id: 19692128 title: "Mishimoto MMRAD-CIV-06SI Performance Aluminum Radiator Compatible With Honda Civic Si 2006-2011" brand: "mishimoto" price: "¥156747" currency: JPY in_stock: true reviews_count: 10 category: "Mishimoto" url: https://www.desertcart.jp/products/19692128-mishimoto-mmrad-civ-06si-performance-aluminum-radiator-compatible-with-honda store_origin: JP region: Japan --- # All-aluminum construction with magnetic drain plug 1.57-inch thick aluminum core Compatible with 2006-2011 Honda Civic Si K-series Mishimoto MMRAD-CIV-06SI Performance Aluminum Radiator Compatible With Honda Civic Si 2006-2011 **Brand:** mishimoto **Price:** ¥156747 **Availability:** ✅ In Stock ## Summary > ❄️ Keep your Civic Si cool, calm, and track-ready—upgrade like a pro! ## Quick Answers - **What is this?** Mishimoto MMRAD-CIV-06SI Performance Aluminum Radiator Compatible With Honda Civic Si 2006-2011 by mishimoto - **How much does it cost?** ¥156747 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/19692128-mishimoto-mmrad-civ-06si-performance-aluminum-radiator-compatible-with-honda) ## Best For - mishimoto enthusiasts ## Why This Product - Trusted mishimoto brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lifetime Confidence:** Backed by Mishimoto’s lifetime warranty—because your ride deserves nothing less. - • **Compact Yet Powerful:** Optimized 26.8 x 18.2 x 2.07 inch size balances performance without sacrificing engine bay space. - • **Durable All-Aluminum Build:** Lightweight yet robust aluminum construction with magnetic drain plug for easy maintenance. - • **Precision Fit for Civic Si:** Tailored compatibility with 2006-2011 Honda Civic Si K-series engines for seamless installation. - • **Race-Ready Cooling Efficiency:** Two-row, 1.57-inch thick brazed aluminum core ensures your engine stays chill on street and track. ## Overview The Mishimoto MMRAD-CIV-06SI is a high-performance aluminum radiator engineered specifically for 2006-2011 Honda Civic Si models with K-series engines. Featuring a two-row, 1.57-inch thick brazed aluminum core and all-aluminum construction with a magnetic drain plug, it delivers superior cooling efficiency and durability. Compact in size yet powerful in function, this radiator ensures optimal engine temperature regulation on both street and track, backed by a lifetime warranty for lasting peace of mind. ## Description A Mishimoto performance aluminum radiator is the ideal upgrade to the stock Civic radiator. For a cooler more efficient running engine, all Mishimoto radiators are designed and engineered to maximize cooling and boost engine functions. Review: Very nice - Nice addition to my car keeps cool. Review: Compatible with 2009-2011 civic ex. - Compatible with 2009-2011 civic ex civic ex_l civic dx civic si civic MX This radiator is very excellent . my car civic 4 Door EX-L (NAVIGATION) It is really convenient . ## Features - Compatible with the 2006–2011 Honda Civic Si w/ K-series engine - Overall Size: 26.8 x 18.2 x 2.07 inches. Features a two-row, 1.57 inch thick brazed aluminum core which provides efficient fluid temperature regulation on the street and track - Inlet & Outlet: 1.25 inch / Core Thickness: 1.57 inch / Tank Wall Thickness: 0.08 inch - All-aluminum construction includes magnetic drain plug - Mishimoto Lifetime Warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B003GZE1G0 | | Best Sellers Rank | #2,063,532 in Automotive ( See Top 100 in Automotive ) #10,437 in Automotive Replacement Engine Radiators | | Brand | Mishimoto | | Brand Name | Mishimoto | | Cooler Heatsink Compatibility | 2006-2011 Honda Civic Si (K-series engine) | | Cooler Heatsink Material | Aluminum | | Customer Reviews | 4.6 out of 5 stars 33 Reviews | | Global Trade Identification Number | 00748354798890, 07483547988902 | | Included Components | Per Item Description | | Item Dimensions L x W x H | 26.8"L x 18.2"W x 2.07"H | | Item Weight | 5 pounds | | Manufacturer | Mishimoto | | Model | MMRAD-CIV-06SI | | Number of Items | 1 | | Part Interchange Info | MMRADCIV06SI | | Part Number | MMRADCIV06SI | | Product Dimensions | 26.8"L x 18.2"W x 2.07"H | | UPC | 748354798890 | | Unit Count | 1 Count | | Warranty Description | Lifetime | ## Product Details - **Brand:** Mishimoto - **Cooler Heatsink Compatibility:** 2006-2011 Honda Civic Si (K-series engine) - **Cooler Heatsink Material:** Aluminum - **Item Weight:** 5 pounds - **Product Dimensions:** 26.8"L x 18.2"W x 2.07"H ## Images ![Mishimoto MMRAD-CIV-06SI Performance Aluminum Radiator Compatible With Honda Civic Si 2006-2011 - Image 1](https://m.media-amazon.com/images/I/71RCeB2uOoL.jpg) ![Mishimoto MMRAD-CIV-06SI Performance Aluminum Radiator Compatible With Honda Civic Si 2006-2011 - Image 2](https://m.media-amazon.com/images/I/71XJbC8LD9L.jpg) ![Mishimoto MMRAD-CIV-06SI Performance Aluminum Radiator Compatible With Honda Civic Si 2006-2011 - Image 3](https://m.media-amazon.com/images/I/71tAqSvuTjL.jpg) ![Mishimoto MMRAD-CIV-06SI Performance Aluminum Radiator Compatible With Honda Civic Si 2006-2011 - Image 4](https://m.media-amazon.com/images/I/61KTr9G3ynL.jpg) ![Mishimoto MMRAD-CIV-06SI Performance Aluminum Radiator Compatible With Honda Civic Si 2006-2011 - Image 5](https://m.media-amazon.com/images/I/51778zj0WvL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very nice *by S***E on June 26, 2023* Nice addition to my car keeps cool. ### ⭐⭐⭐⭐⭐ Compatible with 2009-2011 civic ex. *by S***N on September 22, 2019* Compatible with 2009-2011 civic ex civic ex_l civic dx civic si civic MX This radiator is very excellent . my car civic 4 Door EX-L (NAVIGATION) It is really convenient . ### ⭐⭐⭐⭐⭐ not only it looks good under the hood but it also keeps my car ... *by E***3 on December 6, 2017* vroom vroom....not only it looks good under the hood but it also keeps my car running cooler than ever now that it is under boost ## Frequently Bought Together - Mishimoto MMRAD-CIV-06SI Performance Aluminum Radiator Compatible With Honda Civic Si 2006-2011 - Mishimoto MMFS-CIV-06SI Performance Aluminum Fan Shroud Compatible with Honda Civic Si 2006-2011 Silver - Mishimoto MMHOSE-CIV-06RD Silicone Radiator Hose Kit Compatible With Honda Civic 2006-2011 Red --- ## 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.jp/products/19692128-mishimoto-mmrad-civ-06si-performance-aluminum-radiator-compatible-with-honda](https://www.desertcart.jp/products/19692128-mishimoto-mmrad-civ-06si-performance-aluminum-radiator-compatible-with-honda) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-14*