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OSC Automotive Radiators
292 Customer Reviews
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
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.
Showing In Stock Items. Show All 48 Items.
Radiator, Exact Fit, Aluminum, Plastic, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each
Part Number: OSC-162
Estimated Ship Date: Monday 2/16/2026 if shipped by air
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
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Radiator, Crossflow, Aluminum/Plastic, Natural, Each
Part Number: OSC-681
Estimated Ship Date: Mar 3, 2026 if ordered today
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
Estimated Ship Date: Mar 3, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
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
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
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
Estimated Ship Date: Mar 3, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
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
Estimated Ship Date: Mar 3, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
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
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
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
Estimated Ship Date: Monday 2/16/2026 if shipped by air
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
Estimated Ship Date: Mar 3, 2026 if ordered today
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
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
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
Estimated Ship Date: Mar 2, 2026 if ordered today
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
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
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
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
Estimated Ship Date: Mar 2, 2026 if ordered today
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
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
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
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
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
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
Estimated Ship Date: Mar 3, 2026 if ordered today
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