Moroso 01-06 BMW E46 M3 Coolant Expansion Tank - Direct Bolt-In Replacement

Shop performance cooling parts at Black Ops Auto Works for premium radiators, thermostat housings, thermostats, coolant reservoirs, expansion tanks, radiator hoses, oil coolers, transmission coolers, fans and shrouds, water pumps, and thermal management upgrades for street, track, towing, diesel, and high-horsepower builds. Whether you are trying to control engine temps, improve reliability, or support demanding performance use, this collection is built around proven cooling-system upgrades for serious enthusiasts. Shop Cooling Parts by Category Browse automotive cooling system components across key product categories, including: Radiators Coolant reservoirs and expansion tanks Thermostat housings and thermostats Radiator hose kits and silicone coolant hoses Oil coolers and oil cooler accessories Transmission coolers Coolant bypass kits and coolant filters Fans and shrouds Radiator caps Water pumps Radiator shrouds, radiator stays, and cooling plates Thermal wrap, thermal tape, an...

This engine parts collection covers oil catch cans, thermostats, thermostat housings, radiator components, coolant accessories, engine covers, fuse box covers, cap covers, throttle bodies, supercharger pulleys, idler pulleys, tensioner pulleys, and engine bay dress-up parts for trucks, SUVs, muscle cars, boosted builds, high-horsepower street cars, and performance vehicles that need better reliability, cooling, airflow, oil control, and under-hood styling. The collection is particularly strong for Dodge Challenger, Charger, Durango, Jeep Grand Cherokee Trackhawk, and Ram TRX platforms running 6.2L Hellcat, 6.4L HEMI, and 5.7L HEMI engines, where oil catch can and cooling upgrades address known OEM weaknesses in the PCV and thermal management systems. Import performance platforms including GM LS-based builds, Chevrolet Camaro, and Corvette applications are also represented through Mishimoto, CSF, and ZPE GripTec product lines. Builders who invest in engine bay organization and reliab...

Coolant expansion tanks, also called overflow reservoirs or surge tanks, manage the volume change that occurs as engine coolant heats up and expands during normal operation, storing the overflow when the system pressurizes and returning it to the radiator as the engine cools. Factory plastic expansion tanks are a common failure point on many performance and modified vehicles because the repeated pressure cycling and elevated temperatures of a high-output engine cause the OEM plastic to crack, weep, or lose pressure cap integrity faster than a stock application would. Upgraded aluminum, carbon fiber, and high-density polyethylene expansion tanks from Mishimoto, Cordes Performance, and Billet Technology improve cooling system reliability by resisting heat deformation, maintaining correct pressure cap seating, and providing a larger fluid reserve that extends the thermal management capacity of the system under sustained hard driving. Vehicles running modified cooling systems, larger ra...

Shop Moroso performance parts at Black Ops Auto Works, your trusted source for Moroso oil pans, oiling system components, oil pumps, oil pump pickups, breather tanks, catch cans, valve covers, racing oil filters, radiator caps, and cooling accessories. Moroso is one of the most recognized names in motorsports and high-performance automotive parts, trusted by racers and builders for durability, precision, and race-proven performance. Whether you are building a drag car, road race car, street performance vehicle, LS swap, Coyote build, or custom engine setup, Moroso products deliver the oil control, crankcase ventilation, and engine support serious enthusiasts demand. Shop Moroso Oil Pans, Catch Cans & Racing Parts At Black Ops Auto Works, we carry a wide selection of Moroso racing and performance parts for oiling, cooling, and engine bay upgrades. Popular Moroso Product Categories: Moroso Oil Pans – Wet sump and dry sump oil pans for drag racing, road racing, and performance st...