{"product_id":"hqpasfy-o2-sensor-replacement-234-4012-234-4018-direct-fit-corrosion-resistant-for-silverado-tahoe-suburban","title":"HQPASFY O2 Sensor Replacement 234-4012\/234-4018 — Direct-Fit Corrosion-Resistant for Silverado Tahoe Suburban","description":"\u003cp\u003e\u003cstrong\u003eThe HQPASFY 234-4012 \/ 234-4018 oxygen sensor is a direct-fit replacement for many GM V6\/V8 trucks and SUVs from the mid‑1990s to early‑2000s, restoring accurate air-fuel sensing and plug-and-play compatibility.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Check Engine light points to an O2 sensor or your vehicle is running rich, lean, or with reduced fuel efficiency, the HQPASFY oxygen sensor offers a robust aftermarket replacement engineered for classic Chevy, GMC, and Cadillac models. Built with corrosion-resistant materials and double laser-welded stainless steel, this sensor is designed to survive high-temperature exhaust environments while matching the original equipment connector and thread sizes for straightforward installation.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and engine sizes does this sensor fit?\u003c\/h3\u003e\n\u003cp\u003eThis HQPASFY sensor replaces part numbers 234-4012 and 234-4018 and fits a broad list of GM trucks and vans. It supports multiple model years and engine displacements found in Chevy, GMC, and select Cadillac vehicles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChevy: Avalanche, Silverado, Suburban, Tahoe, Express — various 4.3L, 4.8L, 5.0L, 5.3L, 5.7L applications (1996–2002 range).\u003c\/li\u003e\n  \u003cli\u003eGMC: Sierra, Yukon, C\/K trucks, Safari, Savana — compatible across 4.3L, 4.8L, 5.0L, 5.3L, 5.7L engines (1996–2002 range).\u003c\/li\u003e\n  \u003cli\u003eCadillac: Escalade 5.3L and 5.7L model years listed (1999–2002).\u003c\/li\u003e\n  \u003cli\u003eReplaces OEM numbers: 234-4012, 234-4018, 9617178, SG454, SG236, 13474, 19178116, and variants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and reliable is the HQPASFY O2 sensor?\u003c\/h3\u003e\n\u003cp\u003eThis sensor is built for longevity in harsh exhaust conditions. The sensing element and housing use high-temperature, corrosion-resistant alloys, and a double laser-welded stainless steel shell improves sealing and structural strength.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSubmersible welds provide a tight seal against moisture and contaminants.\u003c\/li\u003e\n  \u003cli\u003eStainless steel body resists rust and mechanical wear.\u003c\/li\u003e\n  \u003cli\u003eDesigned to tolerate prolonged heat cycles typical of exhaust systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect during installation and operation?\u003c\/h3\u003e\n\u003cp\u003eInstallation is typically straightforward for anyone familiar with basic automotive work: unplug the old sensor, unthread it from the exhaust manifold or pipe, and thread in the replacement sensor, connecting the wiring harness. No special programming is required for direct-fit applications; the vehicle's ECU will use the sensor's feedback as usual.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit connector and thread size for plug-and-play replacement.\u003c\/li\u003e\n  \u003cli\u003eStandard hand tools or an O2 sensor socket needed for removal\/installation.\u003c\/li\u003e\n  \u003cli\u003eExpect normal ECU adaptation; a code clear may be necessary after fitting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and support does HQPASFY provide?\u003c\/h3\u003e\n\u003cp\u003eHQPASFY backs this oxygen sensor with a 24-month warranty, reflecting the manufacturer’s confidence in product quality and long-term performance. Customer support is available for fitment questions or installation guidance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo-year limited warranty covering manufacturing defects.\u003c\/li\u003e\n  \u003cli\u003eContactable support for compatibility or installation help.\u003c\/li\u003e\n  \u003cli\u003eReplacement guidance if product does not match vehicle specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this product for? Owners and mechanics working on late‑1990s to early‑2000s GM trucks, vans, and SUVs who need an OEM-style replacement sensor—particularly those restoring classic models or repairing vehicles showing O2-related trouble codes. It’s suited for DIYers wanting a direct replacement with durable construction, and for professional shops that require reliable aftermarket parts that match original fitment and function.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this O2 sensor fit my 2000 Silverado 1500 5.3L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the HQPASFY 234-4012\/234-4018 lists compatibility with 1999–2002 Silverado 1500 5.3L engines as a direct-fit replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need to program the ECU after replacing this sensor?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No programming is typically required; you may clear stored codes so the ECU can re-learn the sensor signals.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HQPASFY","offers":[{"title":"Default Title","offer_id":48082938429598,"sku":"B08YNCZ636","price":61.84,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/hqpasfy-o2-sensor-front-view.jpg?v=1785819558","url":"https:\/\/northtrailauto.ca\/products\/hqpasfy-o2-sensor-replacement-234-4012-234-4018-direct-fit-corrosion-resistant-for-silverado-tahoe-suburban","provider":"North Trail Auto","version":"1.0","type":"link"}