New Old Stock OEM Cooling Systems For Ford, GM, & Mopar

Keep Your Engine Cool and Confident with OEM-Grade Cooling System Parts

Seeing your temperature needle stay steady is one of those small comforts that makes every drive easier. At Integral Parts, we stock cooling system parts for GM, Mopar, and Ford vehicles that are built to match factory fit and function, so you can focus on the road instead of the gauge.

How the cooling system manages heat

Your engine creates heat every time it runs, and the cooling system’s job is to move that heat away in a controlled loop. Coolant circulates through passages in the engine block and cylinder heads, absorbs heat, and then flows to the radiator. Air passing through the radiator core helps release that heat before coolant returns to the engine. A thermostat regulates when coolant is allowed to circulate through the radiator, helping the engine reach and maintain its intended operating temperature. Supporting pieces—like the reservoir, caps, clamps, and fan shrouds—help keep the system sealed, routed correctly, and operating consistently.

Parts that commonly shape cooling performance

Radiators, water pumps, thermostats, and hoses are often the first items people think of, but cooling system performance depends on the whole package. A radiator must match the correct core thickness, inlet/outlet locations, and mounting points for your platform. Water pumps vary by bolt pattern, pulley design, and flow characteristics. Thermostats can differ by opening temperature and housing style. Hoses are not universal either—diameter, bends, and connector types are specific to the engine bay layout. Cooling fans (and fan modules) can vary by connector style and control strategy, especially across different model years. Even smaller items like clamps and quick-connect fittings matter, because a secure seal helps the system hold the pressure it needs to raise the coolant’s boiling point.

How to choose the right components for GM, Mopar, and Ford

Because each manufacturer uses multiple engine families and platform designs, “close enough” parts can create headaches—misaligned mounting points, hose routing that fights the bay, or connectors that don’t match. The best approach is to match components to your exact application using your VIN, engine code, and model year details. If you’re replacing multiple parts at once—say a radiator and upper/lower hoses—double-check that the fittings and locations align together, not just individually. It also helps to confirm whether your vehicle uses auxiliary cooling (like a separate cooler circuit), since that can affect hose routing and radiator configurations.

Planning your job ahead can also save time. Confirm you have the correct coolant type and capacity for your vehicle, and be prepared to bleed air from the system after service (some platforms have specific bleed screws or procedures). If you’re installing a new thermostat or water pump, inspect mating surfaces and use the correct gaskets or seals so the system stays leak-free. A pressure test after installation is a smart way to verify everything is sealed before you put miles back on the vehicle.

When you’re ready to shop, start on our Cooling Systems page to compare OEM-grade options for GM, Mopar, and Ford applications. Installation requirements may vary. Professional installation or consultation with a qualified technician is recommended.

Need a second set of eyes before you order? The team at Integral Parts is happy to help you narrow down the right cooling system parts so your vehicle’s temperature stays where it belongs—steady, predictable, and road-trip ready.