How to Service and Repair the Rack and Pinion Steering Gear After a Pump or Gear Overhaul on Mercury Cougar?

The procedure to fix and maintain the rack and pinion after pump or gear overhaul must start with purging air from the power steering system. Bleeding of the system should be performed to eliminate any remaining air when operation of the system is needed.

What Precautions Should Be Taken Before Beginning Service on the Rack and Pinion Steering Gear on Mercury Grand Marquis?

The first step should be to disconnect electric power from air suspension before starting any rack and pinion service to avoid sudden changes in air spring pressure that might affect vehicle positioning during hoisting, jacking, or towing operations. To start service on the rack and pinion safely, disable the fire suppression system if present along with setting the air suspension switch to the off position. Place the vehicle in the neutral position on the hoist and use an appropriate steering wheel holder to keep the wheel directly facing front. Avoid any impact on the intermediate shaft when disconnected from the rack and pinion because damage to the clock spring will result from rotation; reinstall the clock spring if this occurs. The bolt should be extracted from the engine compartment to break the connection of the intermediate shaft from the rack and pinion, and this bolt requires a 30 Nm (22 lb-ft) torque setting for reinstalling stages. Your tool needs the hex holding feature to stop the stud from rotating as you unscrew the tie rod nuts from the wheel knuckles until you reach 80 Nm (59 lb-ft) tightness for reinstallation. New O-ring seals must be used in every instance where line connections with the rack and pinion occur. The clamp plate bolt should be removed before disconnecting the lines, and the old seals need disposal before tightening fresh seals to 18 Nm (13 lb-ft). The procedure requires disconnecting the variable assist electrical connector of the rack and pinion for removal of the rack and pinion-to-crossmember nuts, which need to be tightened to 103 Nm (76 lb-ft) before installation. Slacken the rack and pinion-to-crossmember studs, then unfasten the rack and pinion before retightening all the studs to 20 Nm during reinstallation. The removal steps should be reversed while testing for leaks within the filled system. The system can be repowered while enabling the air suspension service switch if present.

OEM Mercury Rack And Pinion

Steering Rack And Pinion

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51 Rack And Pinions found

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Mercury Sector Shaft, Front Part Number: F6AZ-3575-AA
$132.49 MSRP: $183.29
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Product Specifications
- Other Name: Shaft - Steering Gear Sector; Steering Gear Sector Shaft, Front; Pitman Shaft; Shaft & Sector
- Position: Front
- Replaces: EOAZ-3575-A
Fits the following Mercury Models:
- Colony Park | 1987-1991 | GS, LS | 8 Cyl 5.0 L GAS
- Grand Marquis | 1984-2002 | Base, Colony Park, GS, LS | 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.8 L GAS
- Marquis | 1985-1986 | Base, Brougham | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS
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Mercury Steering Gear Part Number: F8DZ-3504-CCRM
$663.44 MSRP: $1096.36
You Save: $432.92 (40%)
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Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Steering Gearbox; Gear Assembly; Gear Assembly - Steering
Fits the following Mercury Models:
- Sable | 1996-1998 | G, GS, LS, LS Premium | 6 Cyl 3.0 L GAS
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Mercury Steering Gear Part Number: AE5Z-3504-DE
$1270.94 MSRP: $2096.36
You Save: $825.42 (40%)
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Product Specifications
- Other Name: Gear Assembly - Steering; Rack and Pinion Assembly; Steering Gearbox; EPS R/P; Gear Assembly
- Replaces: AE5Z-3504-BE, STE-1, AE5Z-3504-CE, AE5Z-3504-B, STE-10, STE-27
Fits the following Mercury Models:
- Milan | 2010-2011 | Base, Hybrid, Premier | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L FLEX
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Mercury Steering Gear Part Number: 1L2Z-3504-NARM
$328.37 MSRP: $540.00
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Product Specifications
- Other Name: Remanufactured Gear - Rack And Pinion Steering; Rack and Pinion Assembly; Steering Gearbox; Rack & Pinion; Gear Assembly; Gear - Rack And Pinion Steering
Fits the following Mercury Models:
- Mountaineer | 2002-2005 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
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Mercury Steering Gear Part Number: 7L8Z-3504-DRM
$340.63 MSRP: $574.55
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Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Rack and Pinion Assembly; Steering Gearbox; Gear Assembly; Gear Assembly - Steering
- Manufacturer Note: Remanufactured
- Replaces: 7L8Z-3504-D, 6L8Z-3504-D
Fits the following Mercury Models:
- Mariner | 2005-2007 | Base, Convenience, Hybrid, Luxury, Premier | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Steering Gear Part Number: 8W7Z-3504-ARM
$461.87 MSRP: $758.18
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Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Rack and Pinion Assembly; Steering Gearbox; Gear Assembly; Steering Gear Assembly; Gear Assembly - Steering
- Replaces: STG-304, 8W7Z-3504-A
Fits the following Mercury Models:
- Grand Marquis | 2008-2011 | GS, LS | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Steering Gear Part Number: 7G1Z-3504-AARM
$347.61 MSRP: $569.35
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Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Rack and Pinion Assembly; Steering Gearbox; Gear Assembly
- Replaces: 7G1Z-3504-A
Fits the following Mercury Models:
- Montego | 2005-2007 | Luxury, Premier | 6 Cyl 3.0 L GAS
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Mercury Steering Gear Part Number: 6F1Z-3504-ARM
$278.48 MSRP: $454.55
You Save: $176.07 (39%)
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Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Rack and Pinion Assembly; Steering Gearbox; Rack & Pinion; Gear Assembly
- Replaces: 5F1Z-3504-A, 6F1Z-3504-A
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 Gear Assembly Part Number: 5L2Z-3504-BARM
$304.76 MSRP: $498.18
You Save: $193.42 (39%)
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Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Rack and Pinion Assembly; Steering Gearbox
- Replaces: 5L2Z-3504-BA
Fits the following Mercury Models:
- Mountaineer | 2004-2005 | Base, Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS
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Mercury Steering Gear Part Number: 8L2Z-3504-ARM
$311.85 MSRP: $509.09
You Save: $197.24 (39%)
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Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Rack and Pinion Assembly; Steering Gearbox; Gear Assembly; Gear Assembly - Steering
- Manufacturer Note: Remanufactured
- Replaces: 7L2Z-3504-B, 8L2Z-3504-B, 8L2Z-3504-A, STG-400
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 Steering Gear Part Number: F7AZ-3504-FDRM
Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Steering Gearbox; Gear Assembly; Steering Gear Assembly; Gear Assembly - Steering
Fits the following Mercury Models:
- Grand Marquis | 1997-2002 | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Steering Gear Part Number: F57Z-3504-GERM
Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Rack and Pinion Assembly; Steering Gearbox; Gear Assembly
- Manufacturer Note: Parts List No. 23 Warranty Eligible, SPR-JE,KH
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 Steering Gear Part Number: 3L2Z-3504-AARM
Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Rack and Pinion Assembly; Steering Gearbox; Gear Assembly; Gear Assembly - Steering
- Replaces: 1L2Z-3504-VARM
Fits the following Mercury Models:
- Mountaineer | 2002-2003 | Base | 8 Cyl 4.6 L GAS
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Mercury Idle Speed Control Part Number: EOAZ-3575-A
Product Specifications
- Other Name: Shaft - Steering Gear Sector; Idle Air Control Valve; Idle Control Motor; Sector Shaft; Pitman Shaft; Pressure Metering Valve; Shaft & Sector; Shaft
- Replaced by: F6AZ-3575-AA
Fits the following Mercury Models:
- Colony Park | 1987 | GS, LS | 8 Cyl 5.0 L GAS
- Grand Marquis | 1984-1987 | Base, Colony Park, GS, LS | 8 Cyl 5.0 L GAS, 8 Cyl 5.8 L GAS
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Mercury Steering Gear Part Number: F8AZ-3504-ACRM
$251.72 MSRP: $398.18
You Save: $146.46 (37%)
Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Steering Gearbox; Gear Assembly; Steering Gear Assembly; Gear Assembly - Steering
Fits the following Mercury Models:
- Grand Marquis | 1992-1996 | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Steering Gear Part Number: 5L2Z-3504-AARM
$363.39 MSRP: $574.55
You Save: $211.16 (37%)
Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Rack and Pinion Assembly; Steering Gearbox; Gear Assembly
- Replaces: 5L2Z-3504-AA
Fits the following Mercury Models:
- Mountaineer | 2004-2005 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Steering Gear Part Number: 7W1Z-3504-ARM
$384.34 MSRP: $607.27
You Save: $222.93 (37%)
Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Steering Gearbox; Gear Assembly; Steering Gear Assembly; Gear Assembly - Steering
- Replaces: 6W1Z-3504-A, 7W1Z-3504-A, STG-246
Fits the following Mercury Models:
- Grand Marquis | 2006 | GS, LS | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Mercury Steering Gear Part Number: 1S8Z-3504-ABRM
Product Specifications
- Other Name: Gear Assembly - Steering; Steering Gearbox; Gear Assembly
- Manufacturer Note: Warranty Eligible, HO (high output), 17' Tires, SPR-VW
Fits the following Mercury Models:
- Cougar | 2001-2002 | Base, S, V6 | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
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Mercury Steering Gear Part Number: 3W1Z-3504-GARM
Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Steering Gearbox; Gear Assembly; Gear Assembly - Steering
- Manufacturer Note: Warranty Eligible, Marauder
Fits the following Mercury Models:
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
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Mercury Gear Assembly Part Number: 5L2Z-3504-CARM
Product Specifications
- Other Name: Gear Assembly - Steering; Steering Gearbox
Fits the following Mercury Models:
- Mountaineer | 2003 | Base | 6 Cyl 4.0 L FLEX

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Mercury Rack And Pinion

If you own Mercury and want to keep it in top shape, choosing OEM Rack And Pinion is a smart move. They are precisely engineered and follow strict factory standards. They are made in advanced facilities that use cutting edge technology. Each part goes through thorough testing to confirm strength and safety, so you can trust it. FordPartsDeal.com gives you genuine Mercury Rack And Pinion at some of the affordable online prices without cutting quality. Every OEM Mercury part includes the manufacturer's warranty, easy returns, and super-fast delivery. So why wait? Shop now and get your vehicle back to peak condition.

Mercury Rack And Pinion translates the turns of the steering wheel into firm turns of the wheel and the drivers have straight cut confident control. In 1939, Mercury took its Roman god by the same name to showrooms and promised both motion and message. Over the decades of its production, Mercury emphasized plush rides, spacious cabins, and quiet interiors which muffled road noise. Customers appreciated the fact that Mercury struck a compromise between serious and cutting-edge style and affordable price tags, without becoming the style-snobbery of luxury. Brands such as the Cougar and the Grand Marquis demonstrated that the brand was capable of being both attitude-inducing and useful. The Mercury, even after production ceased in 2011, still embodied mid-size comfort and truthful value. The drivers recalled the more compliant suspension that absorbed fractured pavement without deadening steering feedback. Cabins remained large enough to ensure that family visits were not crowded and comfortable. It was easy to talk at highway speed because of sound insulation. A modern Rack And Pinion is placed inside a hardened metal tube where the gears are immersed in fluid with hydraulic pressure helping each single turn, converting the rotation of the column to the exact lateral rack movement pushing the tie rods and turning the wheels. Even when a Rack And Pinion begins to leak through abraded O-rings, steering effort spikes and groans are warning signs. None of that and a Rack And Pinion can get stuck and the car drags and the tires scrape. Install a new Rack And Pinion and the wheel again will be tight on-center responding with smooth sweep lock.

Mercury Rack And Pinion Parts and Q&A

Steering Gear
XS8Z-3504-AARM
Q: How to Service and Repair the Rack and Pinion Steering Gear After a Pump or Gear Overhaul on Mercury Cougar?
A:
The procedure to fix and maintain the rack and pinion after pump or gear overhaul must start with purging air from the power steering system. Bleeding of the system should be performed to eliminate any remaining air when operation of the system is needed.
Steering Gear
7W1Z-3504-BRM
Q: What Precautions Should Be Taken Before Beginning Service on the Rack and Pinion Steering Gear on Mercury Grand Marquis?
A:
The first step should be to disconnect electric power from air suspension before starting any rack and pinion service to avoid sudden changes in air spring pressure that might affect vehicle positioning during hoisting, jacking, or towing operations. To start service on the rack and pinion safely, disable the fire suppression system if present along with setting the air suspension switch to the off position. Place the vehicle in the neutral position on the hoist and use an appropriate steering wheel holder to keep the wheel directly facing front. Avoid any impact on the intermediate shaft when disconnected from the rack and pinion because damage to the clock spring will result from rotation; reinstall the clock spring if this occurs. The bolt should be extracted from the engine compartment to break the connection of the intermediate shaft from the rack and pinion, and this bolt requires a 30 Nm (22 lb-ft) torque setting for reinstalling stages. Your tool needs the hex holding feature to stop the stud from rotating as you unscrew the tie rod nuts from the wheel knuckles until you reach 80 Nm (59 lb-ft) tightness for reinstallation. New O-ring seals must be used in every instance where line connections with the rack and pinion occur. The clamp plate bolt should be removed before disconnecting the lines, and the old seals need disposal before tightening fresh seals to 18 Nm (13 lb-ft). The procedure requires disconnecting the variable assist electrical connector of the rack and pinion for removal of the rack and pinion-to-crossmember nuts, which need to be tightened to 103 Nm (76 lb-ft) before installation. Slacken the rack and pinion-to-crossmember studs, then unfasten the rack and pinion before retightening all the studs to 20 Nm during reinstallation. The removal steps should be reversed while testing for leaks within the filled system. The system can be repowered while enabling the air suspension service switch if present.