Replaces

2003-2004 Ford Expedition Harmonic Balancer for V8 4.6L

This part replaces:

  • DORMAN 594-311
  • OE # 1W7Z6312AA
  • HOLLANDER 309-00587

  • New

This harmonic balancer and belt drive pulley is a new, aftermarket replacement part. This dampener pulley mounts to the front of the engine on the crankshaft, and is used to dampen engine vibration.

Specifications:

  • Type - Serpentine Belt
  • Diameter - 7-1/16"
  • Width - 2-5/16"
  • Weight - 7.95 lbs
  • Replaces dealer part number: 1W7Z-6312-AA, 1W7Z6312AA
  • Direct bolt on replacement
  • Built to strict quality control standards

This replacement harmonic balancer is an excellent replacement for your worn or damaged original and has substantial cost savings over a dealer part.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. Removing the Air Intake (0:48)
    • Lift up on the engine panel
    • Remove the two 11mm nuts from the engine cover
    • Pry the hose off the back of the cover
    • Remove the engine cover
    • Disconnect the air sensor harness
    • Loosen the hose clamp on the air intake hose
    • Remove the hoses from the air intake hose
    • Lift the air box up and out
  2. Removing the Upper Radiator Shroud (1:44)
    • Place a drain pan underneath the engine
    • Push the teeth together on the hose clamp
    • Slide the coolant hose back
    • Remove the 13mm nut from the coolant hose bracket
    • Remove the bracket
    • Remove the bolts on either side of the radiator shroud
    • Pry the clip off from the refrigeration line from the radiator shroud
    • Remove the radiator shroud
  3. Removing the Radiator Fan (2:40)
    • Remove the fan bolts with a 10mm wrench
    • Pry the belt off the idler pulley with a screwdriver
    • Pull the belt off the alternator
    • Hold the water pump pulley with an adjustable wrench
    • Loosen the four 10mm bolts and remove two
    • Insert the fan pulley wrench into one of the holes
    • Loosen the fan clutch with a an adjustable wrench
  4. Creating a Harmonic Balancer Holder Tool (4:45)
    • Insert three M8 125 bolts into the holes on the harmonic balancer pulley
    • Insert a piece of wood against the bolts
    • Make a mark on the wood of where they are
    • Mark a straight line between the bolts to find a center point
    • Drill with a 3/8 bit where each of the bolts are marked
    • Drill a 1/8 hole in the center mark
    • Drill with a 1" wood bit on the center mark
  5. Removing the Harmonic Balancer Pulley (6:22)
    • Press the wood plank with the M8 bolts into the harmonic balancer pulley to hold the engine and crankshaft in place
    • Insert an 18mm socket and ratchet through the center hole and remove the harmonic balancer bolt
    • Thread the harmonic balancer puller tool on the 18mm bolt
    • Insert the end on the bolt
    • Push the M8 bolts into the puller tool
    • Mount the puller into the balancer
    • Tighten the puller with an adjustable wrench
    • Pull the harmonic balancer up and out
  6. Installing the New Harmonic Balancer Pulley (7:45)
    • Line up the slot on the harmonic balancer with the tab on the engine
    • Tap the harmonic balancer into place
    • Insert and tighten the 18mm bolt to the balancer pulley
    • Insert the wood and M8 bolts into the balancer pulley
    • Torque the 18mm bolt to 70 foot-pounds
  7. Reinstalling the Serpentine Belt (8:36)
    • Familiarize yourself with the route of the serpentine belt
    • Bring it around the A/C Pulley
    • Bring it around the belt tensioner
    • Bring it around the harmonic balancer
    • Loop the belt around the crank pulley
    • Bring it around the water pump
    • Bring it around the power steering pulley
    • Bring it around the idler pulley
    • Pull the tensioner clockwise with the 3/8 inch ratchet
    • Pull the belt over the alternator
    • Release the tensioner
  8. Reinstalling the Radiator Fan (9:54)
    • Insert the lower fan shroud into place
    • Twist the radiator fan on
    • Tighten the radiator fan with a fan pulley and adjustable wrench
    • Insert the radiator hose bracket in place
    • Tighten the bolt to the bracket
    • Insert the radiator hose in place
    • Slide the hose clamp up on the hose
    • Replace the two bolts in water pump pulley
    • Replace the four bolts to the radiator fan
  9. Reinstalling the Air Intake (11:41)
    • Push the air intake box in place
    • Insert the air intake hose in place
    • Connect the two vacuum hoses to the air intake hose
    • Connect the air sensor harness
    • Tighten the hose clamp
    • Line up the upper fan shroud
    • Clamp the refrigeration line
    • Insert the bolts on either side of the radiator shroud
    • Insert the engine cover into place
    • Press the hose on the back of the engine cover
    • Insert the two 11mm bolts to the engine cover
    • Put the engine panel in place

Tools needed for replacement:

    Drills, Drill Bits & Related

  • 3/8 Inch Drill Bit
  • Drill
  • 1/8 Inch Drill Bit

  • General Tools

  • Hammer
  • Drain Pan

  • Materials, Fluids, and Supplies

  • Block of Wood
  • M8 Bolt

  • Pliers, Cutters & misc Wrenches

  • Adjustable Wrench

  • Ratchets & Related

  • 1/2 Inch Breaker Bar
  • Torque Wrench

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • Complete Metric Socket Set

  • Specialty Tools

  • Harmonic Balancer Holding Tool
  • Harmonic Balancer Puller
  • Fan Pulley Wrench


How-to Video:

(13:06 min)

Tools List:

    Drills, Drill Bits & Related

  • 3/8 Inch Drill Bit
  • Drill
  • 1/8 Inch Drill Bit

  • General Tools

  • Hammer
  • Drain Pan

  • Materials, Fluids, and Supplies

  • Block of Wood
  • M8 Bolt

  • Pliers, Cutters & misc Wrenches

  • Adjustable Wrench

  • Ratchets & Related

  • 1/2 Inch Breaker Bar
  • Torque Wrench

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • Complete Metric Socket Set

  • Specialty Tools

  • Harmonic Balancer Holding Tool
  • Harmonic Balancer Puller
  • Fan Pulley Wrench



This part replaces:

  • DORMAN 594-311
  • OE # 1W7Z6312AA
  • HOLLANDER 309-00587

Vehicle Fit

  • 2001-2010 Ford Crown Victoria Harmonic Balancer for V8 4.6L
  • 2005-2010 Ford E150 Van Harmonic Balancer for V8 4.6L
  • 2005-2010 Ford E250 Van Harmonic Balancer for V8 4.6L
  • 2003-2004 Ford Expedition Harmonic Balancer for V8 4.6L
  • 2002-2004 Ford Explorer Harmonic Balancer for V8 4.6L
  • 2004 Ford F150 Truck Harmonic Balancer for New Body Style Models with V8 4.6L
  • 2005-2008 Ford F150 Truck Harmonic Balancer for V8 4.6L
  • 2009-2010 Ford F150 Truck Harmonic Balancer for V8 4.6L ( 8th Vin Digit W)
  • 2001-2002 Ford Mustang GT Harmonic Balancer for V8 4.6L SOHC ( 8th Vin Digit X)
  • 2003-2004 Ford Mustang GT Harmonic Balancer for V8 4.6L SOHC
  • 2001-2010 Lincoln Town Car Harmonic Balancer for V8 4.6L
  • 2001-2010 Mercury Grand Marquis Harmonic Balancer for V8 4.6L
  • 2002-2004 Mercury Mountaineer Harmonic Balancer for V8 4.6L
$80.45
Save 34%
List: $122.08 Save: $41.63
Only 4 left in stock
Part #: 1AEHB00161

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