The Ultimate Cooling System Fix for Your Nissan Altima or Maxima If you own a 2007-2013 Altima or a 2009-2015 Maxima, you know the factory plastic radiator filler neck is a ticking time bomb. Heat and pressure eventually turn the plastic brittle, leading to sudden coolant leaks and potential engine damage. Our Upgraded Aluminum Filler Neck Kit is the permanent solution. Why Choose Our Aluminum Upgrade? Lifetime Durability: Unlike the OEM plastic that fails every few years, our cast aluminum housing is built for the long haul. It resists corrosion and withstands the highest thermal cycles. Precision Sealing: The kit comes with a brand-new 137 Kpa radiator cap and professional-grade stainless steel clamps. We ensure the seal is airtight the moment you finish the install. Simple DIY Installation: This is a direct-fit component. No cutting or custom work needed. Simply remove the old plastic unit and replace it with this rugged aluminum version using the provided hardware. Fits the Following Vehicles: Nissan Altima: 2007, 2008, 2009, 2010, 2011, 2012, 2013 Nissan Maxima: 2009, 2010, 2011, 2012, 2013, 2014, 2015 Nissan Teana: 2008-2013 Stop chasing leaks and protect your engine today. Upgrade to aluminum and drive with confidence.