How to service and repair the upper control arm on Mercury Grand Marquis?

To service the upper control arm, hoist up the vehicle, take off the wheel, and hold lower arm. Loose the upper arm with the bolts. Install, without tightening until at curb height, then check alignment. Use an equivalent to substitute the fasteners and follow the torque values in reassembling.

How to service and repair the upper control arm on Mercury Mountaineer?

In order to fix the upper control arm, measure the distance between the hub and the fender, then lift the suspension to those measurements. Take out the outboard nut and bolt and in place of the flag nut use a non-flag nut. Install a new inboard bolt, tighten to 250 Nm and outboard bolt tighten to 275 NM. Check alignment afterward.

OEM Mercury Control Arm

Suspension Arm

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93 Control Arms found

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Mercury Front Lower Control Arm Part Number: AE5Z-3078-A
$71.94 MSRP: $118.36
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Control Arm and Ball Joint Assembly; Front Lower Forward.; Rear Lower Control Arm; Front Arm; Control Arm
- Manufacturer Note: RH/LH
- Position: Front Lower
- Replaces: 7E5Z-3078-R, BE5Z-3078-A, MCSOE-40, MCF-8
Fits the following Mercury Models:
- Milan | 2006-2011 | Base, Hybrid, Premier | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Upper Control Arm, Front Driver Side Part Number: 6W1Z-3085-B
$93.15 MSRP: $153.27
You Save: $60.12 (40%)
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Left Upper Control Arm and Ball Joint Assembly.; Control Arm
- Manufacturer Note: L.H., Upper Control Arm only, stamped., FROM 12/05/05
- Position: Front Upper Driver Side
- Replaces: 6W1Z-3085-AA
Fits the following Mercury Models:
- Grand Marquis | 2006-2011 | GS, LS | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Upper Control Arm, Front Driver Side Part Number: 6L2Z-3085-AA
$98.46 MSRP: $162.00
You Save: $63.54 (40%)
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Left Upper Control Arm and Ball Joint Assembly.; Control Arm
- Position: Front Upper Driver Side
Fits the following Mercury Models:
- Mountaineer | 2006-2010 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Upper Control Arm, Front Passenger Side Part Number: 6W1Z-3084-B
$94.48 MSRP: $155.45
You Save: $60.97 (40%)
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Right Upper Control Arm and Ball Joint Assembly.; Control Arm
- Manufacturer Note: R.H., Upper Control Arm only, stamped., FROM 12/05/05
- Position: Front Upper Passenger Side
- Replaces: 6W1Z-3084-AA
Fits the following Mercury Models:
- Grand Marquis | 2006-2011 | GS, LS | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Upper Control Arm, Front Passenger Side Part Number: 8L5Z-3084-R
$107.30 MSRP: $176.55
You Save: $69.25 (40%)
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Right Upper Control Arm and Ball Joint Assembly.; Control Arm
- Position: Front Upper Passenger Side
- Replaces: 6L5Z-3084-AA
Fits the following Mercury Models:
- Mountaineer | 1997-2001 | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Upper Control Arm, Front Driver Side Part Number: 8L5Z-3085-L
$108.18 MSRP: $178.00
You Save: $69.82 (40%)
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Left Upper Control Arm and Ball Joint Assembly.; Control Arm
- Position: Front Upper Driver Side
- Replaces: 6L5Z-3085-AA
Fits the following Mercury Models:
- Mountaineer | 1997-2001 | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Lower Control Arm, Front Passenger Side Part Number: 3F1Z-3078-AA
$149.78 MSRP: $207.21
You Save: $57.43 (28%)
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Suspension Control Arm, Front Right; Suspension Control Arm; Control Arm
- Manufacturer Note: R.H., The forward bushing has a 14.2mm inner diameter, the rearward has a 14.2mm inner diameter bushing. The ball joint serviced in 3K185/3K186., FROM 04/08/03
- Position: Front Passenger Side
Fits the following Mercury Models:
- Sable | 2003-2005 | GS, LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Lower Control Arm, Front Driver Side Part Number: 8G1Z-3079-M
$326.55 MSRP: $542.22
You Save: $215.67 (40%)
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Left Control Arm and Ball Joint Assembly.
- Position: Front Lower Driver Side
- Replaces: 8G1Z-3079-L, 8G1Z-3079-A, MCSOE-134
Fits the following Mercury Models:
- Sable | 2008-2009 | Base, Premier | 6 Cyl 3.5 L GAS
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Mercury Lower Control Arm, Front Passenger Side Part Number: 6W1Z-3078-D
$210.15 MSRP: $341.82
You Save: $131.67 (39%)
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Right Lower Control Arm and Ball Joint Assembly; Control Arm
- Manufacturer Note: R.H., standard suspension, without special packages, FROM 12/05/05
- Position: Front Lower Passenger Side
Fits the following Mercury Models:
- Grand Marquis | 2006-2011 | GS, LS | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Upper Control Arm, Front Passenger Side Part Number: 6W1Z-3084-U
$93.66 MSRP: $148.73
You Save: $55.07 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Suspension Control Arm, Front Right Upper; Control Arm
- Position: Front Upper Passenger Side
- Replaces: 6W1Z-3084-R, 6W1Z-3084-T, 6W1Z-3084-S, MCSOE-35, 4W1Z-3084-RH, 5W1Z-3084-AA
Fits the following Mercury Models:
- Grand Marquis | 2003-2011 | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
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Mercury Upper Control Arm, Front Driver Side Part Number: 6W1Z-3085-N
$93.89 MSRP: $149.09
You Save: $55.20 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Suspension Control Arm, Front Left Upper; Control Arm
- Position: Front Upper Driver Side
- Replaces: 6W1Z-3085-L, 6W1Z-3085-M
Fits the following Mercury Models:
- Grand Marquis | 2003-2005 | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L GAS
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
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Mercury Upper Control Arm, Front Passenger Side Part Number: 7E5Z-3084-R
$52.71 MSRP: $72.91
You Save: $20.20 (28%)
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Suspension Control Arm, Front Right Upper; Control Arm
- Manufacturer Note: Original Design
- Position: Front Upper Passenger Side
Fits the following Mercury Models:
- Milan | 2007-2009 | Base, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Lower Control Arm, Front Driver Side Part Number: 6W1Z-3079-AA
$379.11 MSRP: $524.45
You Save: $145.34 (28%)
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Left Lower Control Arm and Ball Joint Assembly.; Control Arm
- Manufacturer Note: L.H., standard suspension, without special packages, FROM 08/03/05 TO 12/05/05
- Position: Front Lower Driver Side
- Replaces: 5W1Z-3079-AA
Fits the following Mercury Models:
- Grand Marquis | 2003-2005 | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L GAS
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
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Mercury Lower Control Arm, Front Passenger Side Part Number: 5F2Z-3078-BA
$220.00 MSRP: $301.84
You Save: $81.84 (28%)
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Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Right Control Arm and Ball Joint Assembly; Control Arm
- Manufacturer Note: RH Lower
- Position: Front Lower Passenger Side
- Replaces: 3F2Z-3078-AA
Fits the following Mercury Models:
- Monterey | 2004-2007 | Base, Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS
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Mercury Lower Control Arm, Front Passenger Side Part Number: 7L2Z-3078-AB
Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Right Lower Control Arm and Ball Joint Assembly; Control Arm
- Position: Front Lower Passenger Side
- Replaces: 7L2Z-3078-A
Fits the following Mercury Models:
- Mountaineer | 2006-2010 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
View related parts
Mercury Lower Control Arm, Front Passenger Side Part Number: 7L5Z-3078-A
Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Right Lower Control Arm and Ball Joint Assembly; Control Arm
- Position: Front Lower Passenger Side
- Replaces: 6L5Z-3078-BA
Fits the following Mercury Models:
- Mountaineer | 1997-2001 | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Control Arm, Rear Driver Side Part Number: 1F1Z-5500-FL
Product Specifications
- Other Name: Arm Assembly - Rear Suspension; Suspension Control Arm, Rear Left Forward; Front Lower Control Arm; Suspension Control Arm
- Manufacturer Note: LH,Used on front or rear, has bushing to accept 5K751 adjusting cam.
- Position: Rear Driver Side
- Replaces: YF1Z-5500-FL
Fits the following Mercury Models:
- Sable | 2000-2005 | GS, LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Upper Control Arm, Front Driver Side Part Number: AE5Z-3085-B
Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Left Upper Control Arm and Ball Joint Assembly.; Control Arm
- Manufacturer Note: Original Design
- Position: Front Upper Driver Side
Fits the following Mercury Models:
- Milan | 2010-2011 | Base, Premier | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L FLEX
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Mercury Front Lower Control Arm Part Number: 6M8Z-3078-A
Product Specifications
- Other Name: Arm Assembly - Front Suspension; Front Lower Control Arm and Ball Joint Assembly.; Front Arm
- Position: Front Lower
- Replaces: 5M8Z-3078-S, MCSOE-97
Fits the following Mercury Models:
- Milan | 2006-2007 | Base, Premier | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Upper Control Arm, Rear Passenger Side Part Number: 6F9Z-5A804-A
Product Specifications
- Other Name: Arm Assembly - Rear Suspension; Suspension Control Arm, Rear Right Upper; Control Arm
- Manufacturer Note: Upper Arm
- Position: Rear Upper Passenger Side
- Replaces: 5F9Z-5A804-AB
Fits the following Mercury Models:
- Montego | 2005-2007 | Luxury, Premier | 6 Cyl 3.0 L GAS
- Sable | 2008-2009 | Base, Premier | 6 Cyl 3.5 L GAS

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Mercury Control Arm Parts and Q&A

Control Arm, Front Driver Side
XW1Z-3079-BA
Q: How to service and repair the upper control arm on Mercury Grand Marquis?
A: To service the upper control arm, hoist up the vehicle, take off the wheel, and hold lower arm. Loose the upper arm with the bolts. Install, without tightening until at curb height, then check alignment. Use an equivalent to substitute the fasteners and follow the torque values in reassembling.
Upper Control Arm, Front Passenger Side
6L2Z-3084-AA
Q: How to service and repair the upper control arm on Mercury Mountaineer?
A: In order to fix the upper control arm, measure the distance between the hub and the fender, then lift the suspension to those measurements. Take out the outboard nut and bolt and in place of the flag nut use a non-flag nut. Install a new inboard bolt, tighten to 250 Nm and outboard bolt tighten to 275 NM. Check alignment afterward.