DENSO 234-4278 Oxygen Sensor Direct Fit Heated Lead - 4-Wire 10.04

The DENSO 234-4278 is a premium 4-wire heated oxygen sensor engineered to meet strict OE standards for reliable performance and accurate air-fuel mixture monitoring. This direct-fit sensor features a 10.04-inch wire lead for easy installation in specific vehicle applications.

Key Features:

• 4-wire heated design for faster sensor activation and improved cold-start performance
• Exclusive aluminum oxide trap layer protects the ceramic element from silicone and lead poisoning
• Precision-manufactured to OE specifications for exact-fit replacement
• Direct-fit design ensures first-time installation without modifications
• 10.04-inch wire lead length for proper reach and routing
• Rigorous testing to ensure unparalleled performance and longevity

DENSO oxygen sensors help optimize engine performance, improve fuel efficiency, and reduce harmful emissions by providing accurate exhaust gas readings to your vehicle's engine control module. The heated element ensures rapid operation even in cold conditions, while the advanced trap layer technology extends sensor life by preventing contamination.