Mishimoto MMRAD-INT-90 Performance Aluminum Radiator for 1990-1993 Acura Integra

Vehicle Fitment

• 1990-1993 Acura Integra (DA/DB Chassis; RS, LS, GS; 1.8L B18A1 DOHC; FWD; Manual Transmission Only)
• 1992-1993 Acura Integra GS-R (DB Chassis; 1.7L B17A1 DOHC VTEC; FWD; Manual Transmission Only)

Fitment Notes

• Manual transmission vehicles only - automatic transmission applications require the optional Mishimoto Universal Transmission Cooler Kit (MMTC-U), sold separately
• This radiator does not accept the factory A/C fan - Mishimoto recommends the 12" Mishimoto Universal Fan (MMFAN-12) with matching fan mount kit (MMFAN-MOUNT), both sold separately
• Direct bolt-on replacement - no cutting or modification required
• Compatible with the Mishimoto 1990-1993 Acura Integra silicone hose kit for a complete cooling system upgrade

Features

• Direct OEM fit for the 1990-1993 Acura Integra - installs in place of the stock radiator with no modification
• Two-row 100% brazed aluminum core delivers increased cooling capacity and superior heat dissipation over the stock unit
• Precision TIG-welded aluminum end tanks eliminate the plastic components prone to cracking on the OEM radiator
• Increased fluid capacity of 1.76 gallons for improved thermal regulation during sustained hard driving
• Included magnetic drain plug captures metallic debris and particles circulating in the coolant circuit
• Included 1.3 bar high-pressure radiator cap raises the coolant boiling point for a safer, more efficient system
• Suitable for stock, modified, forced induction, and all-motor builds
• Backed by the Mishimoto Lifetime Warranty

Specifications

• Part Number: MMRAD-INT-90
• Construction: 100% Brazed Aluminum Core with TIG-Welded Aluminum End Tanks
• Number of Rows: 2
• Overall Size: 26.29" L x 17.32" H x 1.96" W
• Core Size: 26.29" L x 12.75" H
• Core Thickness: 1.0"
• Inlet Diameter: 1.25"
• Outlet Diameter: 1.25"
• Fluid Capacity: 1.76 gallons
• Radiator Cap Pressure: 1.3 Bar (High-Pressure, included)
• Engine Codes: B18A1 (1.8L), B17A1 (1.7L VTEC)
• Transmission: Manual Only
• Installation Difficulty: Medium

Included Components

• 1x Mishimoto 2-Row Performance Aluminum Radiator
• 1x Mishimoto 1.3 Bar High-Pressure Radiator Cap
• 1x Magnetic Drain Plug

Product Description

The Mishimoto MMRAD-INT-90 is a direct-fit 2-row performance aluminum radiator engineered for the 1990-1993 Acura Integra across all trims - RS, LS, GS, and GS-R - equipped with the B18A1 or B17A1 engine on a manual transmission. The OEM plastic-tank radiator is a common failure point on these aging Integras, with cracked end tanks and coolant leaks leading to overheating and engine damage. Mishimoto's all-aluminum replacement eliminates this weakness with a fully brazed 2-row aluminum core and precision TIG-welded aluminum end tanks, delivering increased fluid capacity (1.76 gallons) and superior heat dissipation for stock and modified builds alike.

Installation is a direct bolt-on swap with no cutting or modification required. Note that this radiator is not compatible with the factory A/C fan - a Mishimoto 12" universal fan (MMFAN-12) and fan mount kit (MMFAN-MOUNT) are recommended as replacements, sold separately. The included 1.3 bar high-pressure radiator cap raises the coolant boiling point for added safety margin on track or spirited street use, and the magnetic drain plug captures metallic debris during coolant changes. Backed by the Mishimoto Lifetime Warranty, this radiator pairs perfectly with the Mishimoto 1990-1993 Acura Integra silicone hose kit for a complete cooling system overhaul.