DENSO 234-4040 Oxygen Sensor 4-Wire Direct Fit Heated

The DENSO 234-4040 is a premium 4-wire heated oxygen sensor engineered to meet strict OEM standards for reliable performance and emissions control. This direct-fit sensor features an 18.7-inch wire length for proper installation without modifications.

Key Features:

• Precision-manufactured to exact OE specifications for guaranteed first-time fit
• Exclusive aluminum oxide trap layer protects the ceramic element from silicone and lead poisoning
• 4-wire heated design ensures faster sensor activation and accurate readings
• 18.7-inch wire length provides proper reach for direct replacement applications
• Improves engine performance, fuel efficiency, and reduces harmful emissions
• Rigorously tested to DENSO's strict quality standards for long-lasting durability

DENSO oxygen sensors deliver the precision and reliability needed to maintain optimal air-fuel ratios, ensuring your engine runs efficiently while meeting emissions requirements. The protective trap layer technology extends sensor life by preventing contamination from common engine byproducts.