2008 Ford Fusion Rear Suspension Parts: Complete Guide to Replacement and Upgrades

If you own a 2008 Ford Fusion, the rear suspension is a critical system that affects ride comfort, handling, and tire wear. Over time, components like struts, control arms, and bushings wear out and need replacement. This guide covers the most common rear suspension parts for the 2008 Fusion, what they do, when to replace them, and how to choose between OEM and aftermarket options. Whether you're tackling a DIY repair or planning a visit to a shop, this information will help you make informed decisions.

Key Rear Suspension Components on the 2008 Ford Fusion

The rear suspension of the 2008 Ford Fusion is a multi-link independent setup. Key parts include:

Rear Struts and Coil Springs

Struts are the main shock-absorbing component. For the 2008 Fusion, the rear strut assembly typically includes a coil spring, strut mount, and rubber boot. Common signs of wear: bouncing, nosedive during braking, uneven tire wear, or fluid leaks on the strut body. Replacing both rear struts at once is recommended to maintain balanced handling.

Rear Control Arms (Trailing Arms and Lateral Links)

The rear suspension uses upper and lower control arms (also called trailing arms and lateral links). These arms connect the wheel hub to the vehicle frame and control wheel alignment. Worn control arm bushings cause clunking noises, vague steering, and accelerated tire wear. On the 2008 Fusion, the lower rear control arm is especially prone to bushing failure.

Rear Stabilizer Bar (Sway Bar) and End Links

The stabilizer bar reduces body roll during turns. Rubber bushings secure the bar to the frame, and end links connect the bar to the control arms. Worn end links or bushings produce a knocking sound when driving over bumps or cornering.

Rear Hub and Bearing Assembly

The wheel hub houses the bearing that allows the wheel to rotate smoothly. A failing bearing makes a humming or grinding noise that changes with speed. On the 2008 Fusion, the rear hub assembly must be replaced as a unit when the bearing fails.

Rear Bushings and Mounts

Bushings are rubber or polyurethane components that cushion metal-to-metal contact. The 2008 Fusion has bushings in the control arms, strut mounts, and stabilizer bar. Worn bushings allow excessive movement, leading to poor alignment and noise. Polyurethane bushing upgrades offer firmer handling but increase road noise.

OEM vs. Aftermarket: Which Rear Suspension Parts Should You Choose?

When replacing rear suspension parts on a 2008 Fusion, you have two main choices: OEM (Original Equipment Manufacturer) or aftermarket. Here’s how they compare.

OEM Parts

• Made by Ford or licensed suppliers.
• Exact match to original specifications.
• Higher cost, but guaranteed fit and durability.
• Best for those who want factory ride quality and long service life.

Aftermarket Parts

• Produced by companies like Moog, Monroe, and Duralast.
• Lower price point, but quality varies.
• Some aftermarket parts offer improved durability or upgraded materials (e.g., greaseable bushings).
• Great for budget-conscious repairs or performance upgrades.

Recommendation: For critical parts like struts and control arms, stick with reputable aftermarket brands (Moog, Monroe) or OEM. Avoid cheap no-name parts—they wear out quickly and can compromise safety.

Signs You Need to Replace Rear Suspension Parts

Not sure if your 2008 Fusion needs rear suspension work? Look for these symptoms:

• Clunking or rattling from the rear when going over bumps. Often points to worn sway bar links or strut mounts.
• Uneven tire wear (cupping or scalloping) indicates worn control arm bushings or struts.
• Excessive bouncing after hitting a bump means struts are weak.
• Vehicle pulls to one side during acceleration or braking, possibly due to a loose control arm.
• Humming or grinding noise that changes with speed signals a failing wheel bearing.

If you notice any of these, inspect the rear suspension components immediately. Driving with worn parts can damage other components and create unsafe handling.

Step-by-Step Guide to Replacing Rear Struts on a 2008 Ford Fusion

While replacing rear struts requires mechanical skill and proper tools, here’s a high-level overview. Always consult a repair manual for torque specs and procedures.

1. Safety first: Jack up the rear of the vehicle and secure it on jack stands. Remove the rear wheels.
2. Remove the strut assembly: Disconnect sway bar end link, brake line bracket, and any electrical connectors (if equipped with height sensor). Unbolt the strut from the knuckle and top mount.
3. Disassemble the strut: Use a spring compressor to safely remove the coil spring from the old strut. Transfer the spring and mount to the new strut.
4. Install the new strut: Reverse removal steps. Tighten bolts to manufacturer specifications.
5. Repeat on the other side. Always replace struts in pairs.
6. Get an alignment after replacing any suspension component that affects ride height or steering.

Warning: Spring compressors are dangerous—if you’re not experienced, have a shop do the strut assembly swap.

Common Replacement Parts for the 2008 Ford Fusion Rear Suspension

Below are the most frequently replaced rear suspension parts, with OEM and aftermarket part numbers (always verify fitment for your specific Fusion model—V6, hybrid, or SEL may have differences).

• Rear Strut Assembly (with spring): OEM – Ford 9F2Z-18125-A / Aftermarket – Monroe 171324 or 911324
• Rear Lower Control Arm: OEM – Ford 6F2Z-5A652-A / Aftermarket – Moog RK80569
• Rear Stabilizer Bar End Link: OEM – Ford 7F2Z-5K484-A / Aftermarket – Moog K80133
• Rear Sway Bar Bushing: OEM – Ford 8F2Z-5486-A / Aftermarket – Energy Suspension 9.5164
• Rear Wheel Hub Assembly: OEM – Ford 6F2Z-1V125-A / Aftermarket – Timken HA590086

Always check your VIN or consult a parts store to confirm compatibility.

Upgrading Your 2008 Fusion Rear Suspension for Better Handling

If you use your Fusion for spirited driving or want improved cornering, consider aftermarket upgrades:

• Performance struts: Monroe OESpectrum or KYB Gas-A-Just offer better damping than stock.
• Polyurethane bushings: Replace rubber bushings in control arms and sway bar with poly for reduced flex (note: stiffer ride).
• Heavier stabilizer bar: An aftermarket sway bar with larger diameter reduces body roll. Eibach and Addco make kits for the Fusion.
• Lowering springs: Eibach Pro-Kit or H&R springs lower the ride height 1 inch, improving stance and center of gravity. Requires performance struts to avoid bottoming out.

These upgrades are best for enthusiasts; for daily driving, stick with quality OEM replacements.

Final Recommendation for 2008 Fusion Rear Suspension Parts

For most 2008 Fusion owners, replacing worn rear suspension parts with quality aftermarket components offers the best balance of cost and reliability. Focus on these priorities:

• Always replace struts in pairs (both rear). Monroe or KYB are solid choices.
• Replace control arm bushings or complete arms if you hear clunking or see uneven tire wear. Moog arms come with greaseable bushings.
• Fix sway bar end links if they’re loose—they’re cheap and easy to replace.
• Do not ignore a noisy wheel bearing; replace the entire hub assembly from Timken or SKF.
• Get a professional alignment after any suspension work to protect tires and ensure safe handling.

If you’re uncertain about a specific part, take your 2008 Fusion to a trusted mechanic for a thorough inspection. Spending a little extra on quality parts now saves money on future repairs and keeps your Fusion driving smoothly for years to come.