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Moroso Cooling System Expansion Tanks

4.71 out of 5 stars 104 Customer Reviews

These expansion tanks are perfect for cars with low-mount radiators to provide a convenient filling location and to bleed off unwanted air. Versions are now available with rugged 6061-T6 billet aluminum filler necks welded to the tank to withstand the continuous removal and installation of the cap. They're 100 percent pressure- tested to eliminate leaks, and they accept a standard-size radiator cap (not included).

Results 1 - 12 of 12

Coolant Expansion Tanks, Aluminum, Fabricated, Bolt-In, Natural, Chevrolet, Each

Part Number: MOR-63808

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Coolant Expansion Tanks, Aluminum, Fabricated, Bolt-In, Natural, Mazda, Each

Part Number: MOR-63779

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Coolant Tank, Expansion, Recirculating, Bolt-in, Aluminum, Natural, Ford, Each

Part Number: MOR-63806

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Coolant Expansion Tanks, Aluminum, Fabricated, Bolt-In, Natural, Chevrolet, Cadiliac, Each

Part Number: MOR-63813

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Coolant Expansion Tank, Recirculating, Bolt-in, Aluminum, Natural, Chevy, 5.7L LS, Each

Part Number: MOR-63787

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Coolant Expansion Tanks, Aluminum, Fabricated, Bolt-In, Natural, Nissan, Each

Part Number: MOR-63811

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Coolant Expansion Tanks, Aluminum, Fabricated, Bolt-In, Natural, Includes Radiator Cap, BMW, Each

Part Number: MOR-63791

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Coolant Expansion Tank, Aluminum, Natural, BMW, Each

Part Number: MOR-63799

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Coolant Expansion Tank, Recirculating, Bolt-in, Aluminum, Natural, Lotus, 1.8L, Each

Part Number: MOR-63797

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Overflow Tank, Cooling, 3.5 qts. Capacity, Aluminum, Natural, Ford, Each

Part Number: MOR-63782

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Coolant Expansion Tank, Fabricated Aluminum, Natural, Ford, Each

Part Number: MOR-63761

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Coolant Expansion Tanks, Aluminum, Fabricated, Bolt-In, Natural, Mazda, Each

Part Number: MOR-63778

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

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