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OSC Automotive Radiators

4.09 out of 5 stars 292 Customer Reviews

Few things get your attention as quickly as seeing white smoke billowing out from under the hood—and once stopped, precious anti-freeze all over the ground. OSC Aut
Few things get your attention as quickly as seeing white smoke billowing out from under the hood—and once stopped, precious anti-freeze all over the ground. OSC Automotive radiators are designed to fit into place as easily as the stock model came out; OEM models are used as a baseline, so their radiators meet or exceed the originals.

To ensure great products, OSC starts with the highest grade of raw components, then follows factory construction standards to maintain longevity of the engine and transmission. Transmission and oil coolers are tested before installation on needed units, and radiator cores are qualifi
Few things get your attention as quickly as seeing white smoke billowing out from under the hood—and once stopped, precious anti-freeze all over the ground. OSC Automotive radiators are designed to fit into place as easily as the stock model came out; OEM models are used as a baseline, so their radiators meet or exceed the originals.

To ensure great products, OSC starts with the highest grade of raw components, then follows factory construction standards to maintain longevity of the engine and transmission. Transmission and oil coolers are tested before installation on needed units, and radiator cores are qualified before and after assembly using state-of-the-art cycle, vibration, burst, and environment testing. OSC prides itself on solving OE design failures in order to provide radiators with better life expectancies than the originals. Over a thousand models are available for fitment on specific makes and models. Choose the style designed for your engine type and vehicle application.

Results 1 - 25 of 48

Radiator, Exact Fit, Aluminum, Plastic, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: OSC-162

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Radiator, Exact Fit, Aluminum, Plastic, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: OSC-161

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Radiator, Crossflow, Aluminum/Plastic, Natural, Each

Part Number: OSC-681

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Radiator, Exact Fit, Aluminum, Plastic, Buick, Cadillac, Oldsmobile, Each

Part Number: OSC-856

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Radiator, Aluminum/Plastic, Crossflow, Buick, Chevy, 5.0, 5.7L, Each

Part Number: OSC-1211

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Radiators, Crossflow, Aluminum/Plastic, Natural, Transmission Cooler, Chevy, GMC, Oldsmobile, 4.3L, Each

Part Number: OSC-705

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Radiator, Exact Fit, Aluminum, Plastic, Buick, Oldsmobile, Pontiac, 3.8L, Each

Part Number: OSC-1202

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Radiator, Exact Fit, Aluminum, Plastic, Buick, Chevy, Oldsmobile, 4.3L, 5.0L, 5.7L, Each

Part Number: OSC-1212

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Radiator, Crossflow, Aluminum/Plastic, Natural, Buick, Oldsmobile, Pontiac, 3.8L, Each

Part Number: OSC-1684

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Radiator, Exact Fit, Aluminum, Plastic, Cadillac 4.6L, Oldsmobile 4.0L, Each

Part Number: OSC-2491

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Radiator, Exact Fit, Aluminum, Plastic, Chevy, GMC, Isuzu, Oldsmobile, 4.3L, Each

Part Number: OSC-1825

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Radiator, Exact Fit, Aluminum, Plastic, Buick, Chevy, GMC, Isuzu, Oldsmobile, Saab, 4.2L, Each

Part Number: OSC-2458

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

PA/26MM/AT

Part Number: OSC-1340

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Radiator, Exact Fit, Aluminum, Plastic, Buick, Chevy, Oldsmobile, Pontiac, 3.1L, 3.4L, 3.8L, Each

Part Number: OSC-1519

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Radiator, Exact Fit, Aluminum, Plastic, Buick, Chevy, Oldsmobile, Pontiac, 3.1L, 3.4L, 3.8L, Each

Part Number: OSC-1051

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Radiator, Exact Fit, Aluminum, Plastic, Buick, Oldsmobile, Pontiac, 3.8L, Each

Part Number: OSC-921

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Radiator, Exact Fit, Aluminum, Plastic, Chevy, Oldsmobile, Pontiac, 2.4L, 3.1L, 3.4L, Each

Part Number: OSC-2264

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Radiator, Exact Fit, Aluminum, Plastic, Buick, Cadillac, Chevy, Oldsmobile, Pontiac, L4, Each

Part Number: OSC-977

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Radiator, Exact Fit, Aluminum, Plastic, Buick, Chevy, Oldsmobile, Pontiac, 3.1L, 3.4L, 3.8L, Each

Part Number: OSC-1889

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

PA/42MM/AT

Part Number: OSC-232

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Radiator, Crossflow, Aluminum/Plastic, Natural, Buick, Oldsmobile, Pontiac, 3.8L, Each

Part Number: OSC-767

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Radiator, Exact Fit, Aluminum, Plastic, Buick, Chevy, Oldsmobile, Pontiac, Saturn, V6, Each

Part Number: OSC-2562

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Radiator, Aluminum/Plastic, Crossflow, Buick, Chevy, Oldsmobile, 5.0, 5.7L, Each

Part Number: OSC-1214

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Radiator, Exact Fit, Aluminum, Plastic, Chevy, Oldsmobile, Pontiac, 3.1L, 3.4L, Each

Part Number: OSC-1216

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Radiator, Aluminum/Plastic, Crossflow, Buick, Oldsmobile, L4, V6, Each

Part Number: OSC-1342

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today