Mishimoto 06+ Honda Civic SI Manual Aluminum Radiator

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, boost engine functions, and most importantly prevent your car from overheating.Made with 100% brazed aluminum and polished end tanks, this lightweight two row core radiator will enhance the overall performance and lifetime of your engine.All Mishimoto radiators are backed by a lifetime warranty.Check out the 2006-2011 Civic Si hose kit, for even greater cooling efficiency.

Additional Information

Aluminum radiator engineered for efficient heat dissipation and optimal engine cooling. Precision-fit design ensures easy installation, corrosion resistance, and reliable performance across varied driving conditions.

Application Summary

2007-2010 Honda Civic 2.0 Liter PNN3, 2006 Honda Civic 2.0 Liter PNN4, 2011 Honda Civic 2.0 Liter SPNM

Part Type

Radiator

Product Overview

A Mishimoto performance aluminum radiator is the ideal upgrade to the stock 2006-2011 Honda Civic Si radiator.For a cooler more efficient running engine, all Mishimoto radiators are designed and engineered to maximize cooling, boost engine functions, and most importantly prevent your car from overheating.Made with 100-percent brazed aluminum and polished end tanks, this lightweight two row core radiator will enhance the overall performance and lifetime of your engine.All Mishimoto radiators are backed by a lifetime warranty.Check out the 2006-2011 Civic Si hose kit, for even greater cooling efficiency.

• Features a two-row, 1.57-in thick brazed aluminum core which provides efficient fluid temperature regulation on the street and track
• Full aluminum construction with durable TIG-welded end tanks
• Polished end tanks provide a stylish upgrade to your engine bay

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Radiator, Aluminum, Downflow, for use on Honda®, Each

Mishimoto performance radiators are designed and engineered to maximize cooling efficiency, boost engine functions, and, most of all, protect your engine from overheating. Many stock radiators can't handle the additional heat that comes higher horsepower levels. So, swap out your stock radiator for an all-aluminum Mishimoto.

Key features and benefits of Mishimoto performance radiators include:
• Available for universal and exact fit applications (no cutting or modifications required)
• All-aluminum construction for optimal heat dissipation, improved strength, and reliability
• Increased cooling capacity due to their massive core size
• 100 percent brazed aluminum core for minimal distortion, low stress, and clean joints
• Available in various sizes with 2-row or 3-row cores
• TIG-welded for clean, strong welds and increased durability
• Magnetic drain plugs capture metallic debris or fragments
• Included high-pressure 1.3 bar cap raises the coolant boiling point for greater safety and efficiency
• Automatic transmission and accessory coolers included where applicable