How to service and repair the harmonic balancer and crankshaft pulley on Mercury Mountaineer?

Service and repair operations on the harmonic balancer along with the crankshaft pulley begin by installing the vehicle onto a hoist set in neutral. The maintenance work starts by taking off both fan shroud and accessory drive belt. Because the crankshaft pulley bolt features torque-to-yield design you should use a strap wrench to hold the crankshaft pulley when removing the bolt but it cannot be reused. The tool will encounter bottoming-out damage to the pulley without a pulley bolt installed. Therefore, install the crankshaft pulley bolt with 2 to 3 turns of rotation. The crankshaft pulley extraction requires two crankshaft vibration damper removers and two 8-mm bolts to complete the procedure along with the discarding of the crankshaft pulley bolt. The crankshaft vibration damper installer will be used for correctly installing the new crankshaft pulley. The strap wrench should maintain its grip on the crankshaft pulley as you install fresh bolts which require the first application of torque at 55 Nm (41 lb-ft) before proceeding with an 85-degree tightening. The last task involves installing both the accessory drive belt and the fan shroud after completion.

OEM Mercury Mountaineer Harmonic Balancer

Engine Harmonic Balancer

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5 Harmonic Balancers found

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Mercury Mountaineer Crankshaft Pulley Part Number: 8L2Z-6B321-C
$167.17 MSRP: $243.33
You Save: $76.16 (32%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Pulley - Crankshaft; Engine Crankshaft Pulley; Harmonic Balancer; Vibration Damper; Pulley
- Replaces: 2L2Z-6B321-AA, 3L2Z-6B321-AA, XL2Z-6B321-AA, 8L2Z-6B321-A, F77Z-6B321-AB, XL2Z-6312-BA, FOTZ-6B321-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2010 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
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Mercury Mountaineer Crankshaft Pulley Part Number: XL2Z-6312-BA
$196.74 MSRP: $243.33
You Save: $46.59 (20%)
ADD TO CART
Product Specifications
- Other Name: Pulley - Crankshaft; Engine Crankshaft Pulley; Serpentine Belt Drive Kit; Harmonic Balancer; Vibration Damper; Vibration Damper & Pulley; Pulley; Damper
- Replaced by: 8L2Z-6B321-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2005 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Mountaineer Crankshaft Pulley Part Number: F67Z-6312-AA
Product Specifications
- Other Name: Pulley - Crankshaft; Engine Crankshaft Pulley; Serpentine Belt Drive Kit; Harmonic Balancer; Pulley
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997-2001 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Mountaineer Crankshaft Pulley Part Number: 4R3Z-6312-A
$85.76 MSRP: $124.83
You Save: $39.07 (32%)
Product Specifications
- Other Name: Pulley - Crankshaft; Engine Crankshaft Pulley; Harmonic Balancer; Vibration Damper; Pulley
- Replaces: 4R3Z-6312-BA, 8R3Z-6312-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2010 Mercury Mountaineer | Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS
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Mercury Mountaineer Crankshaft Pulley Part Number: 1W7Z-6312-AA
Product Specifications
- Other Name: Pulley - Crankshaft; Engine Crankshaft Pulley; Harmonic Balancer; Vibration Damper; Pulley
- Replaces: 1W7Z-6312-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2005 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS

Mercury Mountaineer Harmonic Balancer

OEM Harmonic Balancer boasts unmatched quality. Each part goes through full quality checks. They adhere to Mercury's official factory standards. These steps remove flaws and inconsistencies. So you can get Harmonic Balancer with long life and a perfect fit. Come to our website and find genuine Mercury Mountaineer parts. We keep a wide inventory of OEM Mountaineer parts at the highly affordable prices. It's easy to search, compare, and pick what you need. You'll love the clear info and simple checkout. We offer top-rated customer service, and we reply fast. We also ship promptly to ensure your order arrives on time.

Mercury Mountaineer Harmonic Balancer is one of the important parts that contribute much towards the remarkable dependability as well as efficiency of the Mercury Mountaineer vehicles. This engine element intended to counterbalance the engine and absorb vibrations resulting from the process of combustion has a steel hub connected to the shaft which is sandwiched between a thick inertia ring and a rubber one. This new design also reduces the chances of the crankshaft being subjected to impact and force that cause vibrations and can, therefore, be used on all the Mercury Mountaineer variants without causing any harm to the engine. Mercury Mountaineer has come through generations, with new generations coming with enhancement of the Harmonic Balancer; Traditional, Viscous fluid and multi-piece tunable model. All these features are quite vital to reduce vibration that may cause abuse to the engines over time especially when working under high load as it is in the case with Komatsu. Mercury Mountaineer Harmonic Balancer is suitable for various models manufactured between 1996 and 2010, and that makes it a suitable option if to became an owner of such car. Also for modified engines, there are performance balancers which guarantee protection from elevated levels of vibrations at all the RPMs. Through testing to ensure that the Mercury Mountaineer meets the safety standards of the market, the Mercury Mountaineer Harmonic Balancer boasts of its position in the market guaranteeing the Mercury Mountaineer it continues to be a comfortable and powerful SUV for those drivers who consider comfortability and power and reliability in the SUV they need to buy in the market.

Mercury Mountaineer Harmonic Balancer Parts and Q&A

Crankshaft Pulley
4R3Z-6312-A
Q: How to service and repair the harmonic balancer and crankshaft pulley on Mercury Mountaineer?
A:
Service and repair operations on the harmonic balancer along with the crankshaft pulley begin by installing the vehicle onto a hoist set in neutral. The maintenance work starts by taking off both Fan Shroud and accessory Drive Belt. Because the crankshaft pulley bolt features torque-to-yield design you should use a strap wrench to hold the crankshaft pulley when removing the bolt but it cannot be reused. The tool will encounter bottoming-out damage to the pulley without a pulley bolt installed. Therefore, install the crankshaft pulley bolt with 2 to 3 turns of rotation. The crankshaft pulley extraction requires two crankshaft vibration damper removers and two 8-mm bolts to complete the procedure along with the discarding of the crankshaft pulley bolt. The crankshaft vibration damper installer will be used for correctly installing the new crankshaft pulley. The strap wrench should maintain its grip on the crankshaft pulley as you install fresh bolts which require the first application of torque at 55 Nm (41 lb-ft) before proceeding with an 85-degree tightening. The last task involves installing both the accessory drive belt and the fan shroud after completion.