Harmonic Balancer 3L2Z 6B321AA Belt Drive Pulley for Ford Explorer Ranger Mustang Sport Trac 2001-2011 4.0L V6 and 5.4L V8 Engines Fits Explorer 2003-2010 E-350 Mercury Mountaineer
UPC:
✔️ Single-unit for Ford 4.0L V6 & 5.4L V8 (Explorer/Ranger)
This harmonic balancer is a belt drive pulley built to fit Ford 4.0L V6 and 5.4L V8 applications, including Explorer, Ranger, Mustang, Sport Trac, and Mercury Mountaineer. It’s a single-unit replacement designed to dampen crankshaft vibrations and protect ancillary belts and accessories.
✅ Reference OE numbers: 2L2Z6B321AA, 3L2Z6B321AA, 8L2Z6B321A, F0TZ6B321A, W702489S300, XLZZ6312BA
✅ Fitment: Ford Explorer 2003-2010 4.0L V6; Explorer Sport Trac 2003-2005/2007-2010 4.0L V6; Ranger 2001-2011 4.0L V6; E-350 Super Duty 2001 V8 5.4L; Mercury Mountaineer 2003-2010 4.0L V6
✅ Top quality: robust construction minimizes vibration and extends component life
✅ Installation tip: clean oil seal and crankshaft surface; avoid greasing bolts for self-locking
💡 What is a harmonic balancer used for in a car's belt drive system?
Here's a handy, concise answer.
- Damps crankshaft vibrations to smooth engine operation and reduce belt wear- Protects other belt-driven accessories by absorbing shock loads
- Helps maintain belt alignment and longevity on V6/V8 Ford engine setups