Indmar Oxygen Sensor – Part #596100Ensure clean emissions and proper engine performance with this factory-style 4-wire O₂ sensor designed by Indmar. This sensor is used in various Malibu and Axis boats with GM or Ford Indmar engines. ✅ Fitment & Function GM-based Indmar engines): 2007 & Newer, when the ETX/CAT was introduced 5.7L/383/6.0L(L96)/6.2L(LS3)– Used in both upstream (pre-cat) and downstream (post-cat) positions Ford-based Indmar Raptor engines (6.2L):– Used in downstream (post-cat) only– For upstream (pre-cat), use a wideband O2 sensor (Indmar #597094) 🔧 Features: 4-wire heated narrow-band sensor OEM plug for direct-fit installation Pre-applied anti-seize on threads Helps maintain optimal air-fuel ratio, fuel efficiency, and emissions compliance ⚠️ Important Notes: Check engine fault codes (SPN/FMI) to confirm sensor position (e.g., Bank 1 Sensor 1 = upstream passenger side) For Ford Raptor upstream use, see Indmar part #597094
