Fits 2014-2019 Dodge Charger and Challenger SRT8 models.

Replace the failure-prone factory plastic reservoir with this Moroso direct bolt-in coolant expansion tank. Engineered as a robust alternative to OE units that frequently crack or leak under high-pressure thermal cycles, this tank provides a secure, long-term solution for your cooling system. It installs directly into the engine bay using factory mounting points and is compatible with original hose connections for a seamless fit.

• Direct bolt-in replacement for the factory plastic tank
• Specifically engineered for 2014-2019 SRT8 Charger and Challenger platforms
• Eliminates common leaks and cracks associated with OE plastic reservoirs
• Utilizes factory mounting locations and plumbing for easy installation

Fits 2006-2013 BMW 3-Series E90, E91, E92, and E93 (excluding M models).

Replace the failure-prone factory plastic coolant reservoir with this heavy-duty Moroso fabricated aluminum expansion tank. Over time, original BMW plastic tanks often develop hairline cracks or catastrophic failures at the seams due to constant heat cycling. This TIG-welded aluminum unit (MPN 63851) provides a permanent, reliable solution for both daily driven and track-oriented BMWs.

• Direct bolt-in replacement that utilizes factory mounting points for a clean installation
• Fabricated from high-quality aluminum for superior strength and pressure handling
• TIG-welded construction ensures long-term leak-free performance
• Compatible with the original BMW coolant cap and level sensor
• Manufacturer Part Number: 63851

Fits 2008-2013 BMW M3 (E90, E92, and E93).

Replace the failure-prone factory plastic reservoir with the Moroso 63850 Coolant Expansion Tank. Engineered specifically for the E9x M3 platform, this aluminum tank addresses the common issue of plastic seams cracking and leaking due to heat cycles. This high-quality fabricated tank provides a permanent cooling solution and a cleaner look for your engine bay.

• Direct-fit replacement for the OEM plastic tank
• Fabricated from durable aluminum with precision TIG welds
• Resistant to high-pressure and high-temperature stress
• Utilizes factory mounting points for a secure installation
• Manufacturer Part Number: 63850

Fits 2003-2012 Mazda RX-8 models.

The Moroso aluminum coolant expansion tank is engineered as a heavy-duty, direct bolt-in replacement for the failure-prone factory plastic reservoir. Over time, the original equipment (OE) plastic tank becomes brittle from repeated heat cycles and high cooling system pressures, leading to leaks or catastrophic failure. This Moroso unit is fabricated from high-strength aluminum to ensure long-term reliability in demanding rotary engine environments.

• Direct bolt-in replacement using factory mounting locations and plumbing
• Fabricated aluminum construction eliminates the risk of cracking or bursting
• Features a professional finish that enhances engine bay aesthetics
• Accepts factory overflow hoses and includes a billet radiator cap neck
• Manufacturer Part Number: 63814

Fits 2005-2011 Lotus Elise and Exige.

The Moroso 63797 Coolant Expansion Tank is a precision-engineered upgrade designed to replace the failure-prone factory plastic reservoir. Fabricated from high-quality aluminum for superior strength and heat dissipation, this tank handles the increased pressures and temperatures of performance and track driving without cracking or leaking. As a direct bolt-in replacement, it utilizes factory mounting points and works with the original hose layout for a straightforward installation.

• Fabricated aluminum construction with TIG-welded seams for maximum durability
• Direct bolt-in replacement for the weak OEM plastic tank
• Uses factory mounting points and accepts the stock pressure cap
• Provides improved engine bay aesthetics and long-term reliability
• Manufacturer Part Number: 63797

Fits 2001-2006 BMW M3 (E46).

The Moroso direct bolt-in coolant expansion tank is an essential upgrade for the E46 M3, designed to provide a more durable alternative to the factory plastic reservoir. Engineering for a precise fit, this tank addresses the common reliability issues associated with original equipment cooling components that often fail due to constant heat cycling and pressure.

• Direct bolt-in replacement requires no modifications for installation
• Utilizes factory mounting points and hardware for a clean engine bay appearance
• Built to withstand the high-pressure environment of the BMW S54 cooling system
• Manufacturer Part Number: 63793

Fits 2002-2007 Subaru WRX and STI.

The Moroso 63785 Coolant Expansion Tank is a rugged, fabricated aluminum solution for the failure-prone factory plastic reservoir. Over time, repeated heat and pressure cycles cause the OE plastic tank to fatigue and crack at the seams, leading to potential coolant loss and overheating. This direct bolt-in replacement mounts precisely in the factory location, providing a durable and aesthetically pleasing upgrade for your cooling system.

• Precision-fabricated aluminum construction replaces weak OEM plastic components
• Direct bolt-in fitment using factory mounting points and hardware locations
• Engineered to withstand higher operating pressures and thermal cycling
• Designed to maintain factory plumbing and cooling system integrity
• Manufacturer Part Number: 63785

Fits 1990-1997 Mazda Miata models.

The Moroso 63780 Coolant Expansion Tank is a direct bolt-in replacement for the failure-prone original equipment plastic tank. Designed specifically for the NA-generation Miata, this tank mounts directly to the factory locations using existing hardware. It provides a more durable and reliable solution compared to stock units, which often become brittle, yellow, and crack over time due to repeated heat cycles.

• Direct bolt-in replacement for the factory plastic expansion tank
• Utilizes OEM mounting points and factory hardware
• Engineered for long-term durability and cooling system reliability
• Manufacturer Part Number: 63780

Fits 2006-2015 Mazda Miata (NC models).

The Moroso 63779 Coolant Expansion Tank is a rugged, fabricated aluminum alternative to the failure-prone factory plastic reservoir. Over time, original equipment plastic tanks are known to yellow, crack, and fail at the seams due to repeated heat cycling. This direct bolt-in replacement eliminates those weak points, providing a durable solution for both street and track use.

• Fabricated from high-quality aluminum with professional TIG welds for maximum pressure handling
• Direct bolt-in replacement that utilizes factory mounting points and hose locations
• Eliminates the risk of catastrophic coolant loss associated with aging plastic tanks
• Features a billet aluminum filler neck for a precise cap seal
• Manufacturer Part Number: 63779

Fits all 2006-2015 Mazda Miata (NC) models.

Replace the failure-prone factory plastic unit with the Koyorad all-aluminum coolant reservoir expansion tank. Over time, the original equipment plastic tanks are known to become brittle, yellow, and eventually crack under the pressure and heat of the cooling system. This Koyorad RT001 expansion tank provides a permanent, high-strength solution that withstands extreme under-hood temperatures while adding a professional, polished look to your engine bay.

• Direct bolt-on replacement for the factory OE plastic tank
• Precision TIG-welded aluminum construction for maximum durability
• Billet aluminum filler neck accepts OE or equivalent radiator caps
• Micro-polished finish for a show-quality appearance
• Internal baffles maintain consistent coolant levels
• Manufacturer Part Number: RT001

Fits select 2016-2021 INFINITI Q50 models equipped with the VR30DDTT engine (including Red Sport 400, Sport, Luxe, Pure, and Premium trims).

The AMS Performance Red Alpha Auxiliary Coolant Tank is engineered to combat the power-robbing effects of heat soak in the VR30 platform. By integrating this tank into your intercooler loop, you add over 1.5 gallons of additional coolant capacity to the system. This larger thermal reservoir ensures more consistent intake air temperatures (IATs), allowing your vehicle to maintain maximum boost and timing for longer durations.

In real-world testing, this auxiliary tank has demonstrated a reduction in intercooler outlet temperatures by nearly 35 degrees Fahrenheit. By providing a significant increase in fluid volume, the system can more effectively manage heat during spirited driving or track sessions where the factory cooling capacity often falls short.

• Increased Capacity: Adds more than 1.5 gallons of coolant to the factory intercooler system.
• Thermal Management: Reduces intercooler outlet temperatures by nearly 35°F to prevent ECU timing pull.
• Performance Optimized: Direct solution for the VR30 engine's susceptibility to heat soak.
• Manufacturer Part Number: ALP.29.02.0001-1