Mishimoto Radiator Mount Bracket

Why Mishimoto Radiator Mount Brackets Are Built Differently

When you upgrade to a performance aluminum radiator, the last thing you want is for rigid, unyielding factory hardware to crack your new investment. That is exactly the problem Mishimoto set out to solve with their line of radiator mount brackets — also known as radiator stays. Rather than simply replicating the stiff OEM design, Mishimoto engineers took a fundamentally different approach to how a radiator should be held in place.

The Problem with Stock Radiator Brackets

Stock OEM radiator brackets often feature a rigid design that does not allow them to flex and move in harmony with the vehicle's uni-body under hard driving conditions. These forces, combined with rigid upper radiator brackets, can cause performance aluminum radiators to crack and leak. This is a well-documented failure point, particularly on high-torque muscle cars and performance platforms where chassis flex is more pronounced.

Mishimoto's Flexible, Bushing-Equipped Solution

Mishimoto radiator stays are made out of thin-gauge aluminum and use a softer rubber bushing, allowing the bracket to bend and move with the radiator — thus preventing damage. They are designed to fit both OEM and aftermarket radiators. This combination of lightweight aluminum and compliant rubber mounting is a key differentiator from the factory hardware they replace.

Created from thin 5053 aluminum with an anodized brushed finish, Mishimoto adds a softer rubber bushing to these brackets which allows them to bend and move with the radiator, preventing any damage, cracking, or leaking from the brackets themselves.

Materials, Fitment, and Finish

These brackets are machined from 6061 brushed aluminum and are anodized in a variety of colors to complement any style. Each bracket is application-specific for a direct fit and designed to work with either the factory radiator or Mishimoto stock replacement and performance aluminum radiators. That application-specific engineering means installation is straightforward — no drilling, cutting, or fabrication required.

Mishimoto's radiator mount bracket catalog spans a wide range of popular performance platforms. Their MMRS-MUS-94 and MMRS-MUS-97 aluminum radiator stay sets are purpose-built for Fox-body and SN95 Ford Mustangs (1994–2004), while Honda and Acura enthusiasts can find gold and silver anodized stay options as well. Whether you are running a street car or a dedicated track build, there is likely a Mishimoto bracket solution engineered specifically for your application.

Backed by Mishimoto's Lifetime Warranty

Mishimoto, the world leader in performance cooling products, was created for automotive enthusiasts by automotive enthusiasts. Established in 2005, they have two decades of experience working toward the goal of providing superior cooling system upgrades. True to that mission, all Mishimoto products are carefully designed for a clean, direct-stock fit for easy installation and are rigorously tested to ensure quality. Every product is covered by their Lifetime Warranty, which includes accident protection for cars and trucks.

For anyone installing a new aluminum radiator — whether Mishimoto's own performance units or another brand — pairing it with proper, flex-tolerant mounting hardware is an essential step that is easy to overlook. Mishimoto's radiator mount brackets close that gap with precision-engineered hardware that protects your cooling system investment for the long haul. Browse the full selection of radiator mount brackets or explore everything Mishimoto has to offer across their complete lineup of performance cooling products.