Indmar Oxygen Sensor – Part #596100
Ensure 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