How to remove and install a Steering Knuckle on Mercury Mariner?

Loosen the drive axle/hub nut and wheel lug nuts to remove the wheel. Remove the wheel and hang the brake caliper from the coil spring. If applicable, remove the wheel speed sensor and disconnect the brake hose from the strut. Separate the tie-rod end from the steering knuckle arm by loosening the strut-to-steering knuckle nuts and bolts, and remove the ball joint-to-steering knuckle pinch bolt. Pushing it from behind, withdraw the drive axle/hub nut and support it with wire. Remove the ball joint from the steering knuckle then take out strut-to-knuckle bolts. Separate the steering knuckle carefully away from the strut. When installing the guide knuckle assembly into position, insert the drive axle into the hub and push the knuckle onto the strut flange. Tighten bolts and nuts; also connect the ball joint after which tighten pinch bolt/nut. As well as attaching the tie-rod to the steering knuckle arm, make sure you tighten all three of your strut bolt nuts down on both sides of the vehicle along with the tie-rod nut attaching the strut to the front suspension member bracket rearward of the engine compartment side shields or fenders themselves if present (if not present then go ahead).

Genuine Mercury Mariner Steering Knuckle

Front Steering Knuckle

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6 Steering Knuckles found

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Mercury Mariner Front Wheel Knuckle
Part Number: 5L8Z-3K185-BA
$79.06 MSRP: $157.09
You Save: $78.03 (50%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Knuckle - Front Wheel; Knuckle
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2011 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
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Mercury Mariner Front Wheel Knuckle
Part Number: 5L8Z-3K186-BA
$79.42 MSRP: $157.82
You Save: $78.40 (50%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Knuckle - Front Wheel; Knuckle
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2011 Mercury Mariner | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Front Wheel Knuckle
Part Number: 5L8Z-3K185-AA
$82.96 MSRP: $113.36
You Save: $30.40 (27%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Knuckle - Front Wheel
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Mariner | 4 Cyl 2.3L, 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Front Wheel Knuckle
Part Number: 2L8Z-3K186-BA
$77.62 MSRP: $154.22
You Save: $76.60 (50%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Knuckle - Front Wheel; Knuckle
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005 Mercury Mariner | 4 Cyl 2.3L, 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Front Wheel Knuckle
Part Number: 2L8Z-3K185-BA
$87.58 MSRP: $154.22
You Save: $66.64 (44%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Knuckle - Front Wheel; Knuckle
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005 Mercury Mariner | 4 Cyl 2.3L, 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
View related parts
Mercury Mariner Front Wheel Knuckle
Part Number: 5L8Z-3K186-AA
Product Specifications
- Other Name: Knuckle - Front Wheel
- Position: Driver Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Mariner | 4 Cyl 2.3L, 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)

Mercury Mariner vehicles' Steering Knuckle of this model is an essential assembly that links suspension and steering mechanisms to the front wheels. They serve as locations where control arms, tie-rod ends, and spindles or hubs used where the wheels are fixed are connected. Steering knuckles offer the up and down motion due to small bumps on the road and side to side motions because of the wheel turning. Depending on the car configuration, there are the rear-wheel steering knuckles, front/all-wheel steering knuckles that differ by the integration of the spindle and hub joining methods. Steering knuckles have also evolved from the kingpin to modern designs providing better stability and control for the wheels; though it has relatively long-wearing; these parts are usually replaceable only when faulty.

Mercury Mariner Steering Knuckle Parts Questions & Experts Answers

Front Wheel Knuckle
5L8Z-3K185-BA
Q: How to remove and install a Steering Knuckle on Mercury Mariner?
A: Loosen the drive axle/hub nut and wheel lug nuts to remove the wheel. Remove the wheel and hang the brake caliper from the coil spring. If applicable, remove the wheel speed sensor and disconnect the brake hose from the strut. Separate the tie-rod end from the steering knuckle arm by loosening the strut-to-steering knuckle nuts and bolts, and remove the ball joint-to-steering knuckle pinch bolt. Pushing it from behind, withdraw the drive axle/hub nut and support it with wire. Remove the ball joint from the steering knuckle then take out strut-to-knuckle bolts. Separate the steering knuckle carefully away from the strut. When installing the guide knuckle assembly into position, insert the drive axle into the hub and push the knuckle onto the strut flange. Tighten bolts and nuts; also connect the ball joint after which tighten pinch bolt/nut. As well as attaching the tie-rod to the steering knuckle arm, make sure you tighten all three of your strut bolt nuts down on both sides of the vehicle along with the tie-rod nut attaching the strut to the front suspension member bracket rearward of the engine compartment side shields or fenders themselves if present (if not present then go ahead).