









🚗 Upgrade your ride’s breathability — don’t let your engine miss a beat!
The A-Premium O2 Oxygen Sensor 4-piece set is a direct-fit replacement designed for a wide range of GM vehicles including Chevy, GMC, Cadillac, Buick, and Saturn models. Featuring heated 4-wire sensors with a threaded mount and 520mm length, this kit ensures precise oxygen level monitoring upstream and downstream for optimal engine performance and emissions control. Backed by a one-year unlimited mileage warranty, it’s a reliable upgrade for professional-grade vehicle maintenance.









| Brand | A-Premium |
| Material | Stainless Steel |
| Item Weight | 0.58 Kilograms |
| Measurement Accuracy | High |
| Mounting Type | Threaded Mount |
| Output Type | Analog |
| Specific Uses For Product | Real-time monitoring of oxygen content to help the ECU realize closed-loop control of air-fuel ratio |
| Manufacturer | PremiumpartsWhosale |
| Item Weight | 1.28 pounds |
| Package Dimensions | 7.2 x 5.71 x 4.76 inches |
| Item model number | Compatible with Chevy/GMC/Buick |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | OS105PC |
| OEM Part Number | 12584050, 12607333, 12612430, 250-24649, 2344815 |
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