DIRECT-FIT O2 Sensor for the following MERCURY models:
| MAKE | MODEL | OEM |
| MERCURY | 8.2L 502 V8 GM | 8M2003959 |
| MERCURY | 8.6L 523 | 8M2003959 |
| MERCURY | 5.7L 350 V8 | 8M2003959 |
| MERCURY | 6.2L 377 V8 | 8M2003959 |
| MERCURY | 4.5L 274 V6 | 8M2003959 |
| MERCURY | 5.0L 305 V8 | 8M2003959 |
QUICK & EASY DROP-IN INSTALLATION: Replace all worn components to RESTORE OE performance.
FEEL THE POWER DIFFERENCE! ENGINEERED TO IMPROVE PERFORMANCE AND GUARANTEE LONGEVITY. Designed and constructed for problem-free operation in excess of 2,500 hours or 100,000 miles. Upgraded polymers, brushes, and commutators guarantee consistent flow, amperage draw, and quiet operation.
THE IDEAL REPLACEMENT FOR MERCURY #: 8M2003959
- Brand Name:
- Quantum
All Quantum brand products are backed by a lifetime warranty. Quantum products that fail at any time will be replaced under warranty if it is determined that the failure was due to a defect in workmanship or material. This warranty only applies to the original customer and is non-transferable. Improper use or installation of the product voids this warranty, and Quantum is not responsible for incidental costs resulting from failure of the product. In the unlikely event that you should need to request a warranty please visit www.highflowfuel.com/contact for assistance.
