Mopar Differential Pinion Bearing Spacer-Part no: 05066047AA

Introduction:

The MOPAR 05066047AA DIFFERENTIAL PINION BEARING SPACER is an essential component for maintaining the stability and performance of your vehicle’s differential system. Designed by Mopar to meet OEM specifications, this spacer ensures proper preload for the pinion bearings, which in turn guarantees smooth and quiet drivetrain operation. Whether you’re replacing a worn-out part or rebuilding your differential, the MOPAR 05066047AA is a trusted solution for ensuring the long-term health of your axle and gears.

At AU 4×4 Solution, we provide only the best in genuine Mopar parts — and the MOPAR 05066047AA is no exception.

What is the MOPAR 05066047AA DIFFERENTIAL PINION BEARING SPACER?

The MOPAR 05066047AA DIFFERENTIAL PINION BEARING SPACER is a precision-engineered spacer that sits between the inner and outer pinion bearings in a vehicle’s differential. Its job is to maintain the correct preload on the bearings, which helps prevent excessive wear and gear noise. Too much or too little preload can lead to premature bearing failure, vibration, and even gear misalignment.

As a genuine OEM component, this spacer is designed to fit perfectly and work seamlessly with your vehicle’s factory differential components. The MOPAR 05066047AA is not just a piece of metal—it’s a crucial part of your drivetrain’s integrity and long-term reliability.

Why the MOPAR 05066047AA Is the Right Choice

When it comes to drivetrain components, precision is everything. Even the slightest deviation in measurements can lead to costly issues. That’s why using a genuine MOPAR 05066047AA DIFFERENTIAL PINION BEARING SPACER is critical. It ensures:

• Correct preload settings

• Quiet differential operation

• Reduced wear on bearings and gears

• Long-lasting performance

Compatibility

The MOPAR 05066047AA is compatible with a wide range of vehicles including:

• Dodge Ram 1500 / 2500 / 3500

• Jeep Grand Cherokee

• Jeep Wrangler (JK, TJ)

• Dodge Durango

• Chrysler Aspen

• And more…

Product Applications

This pinion bearing spacer is used in the differential rebuild process or during gear replacement. Common scenarios where you’ll need this part include:

• Pinion bearing failure

• Gear ratio upgrades

• Differential overhaul

• Driveline vibration diagnosis

• Upgrading to heavy-duty axle components

Key Features of MOPAR 05066047AA

• Genuine OEM Mopar part – Engineered to original factory specifications

• Ensures correct bearing preload – Prevents wear and misalignment

• Made from high-strength materials – Withstands high torque and axial loads

• Exact fit – No need for aftermarket modification or adjustments

• Reduces noise and vibration – Ensures quiet operation of the rear differential

• Ideal for rebuilds and repairs – Compatible with multiple Chrysler, Jeep, Dodge models

Signs You May Need a New Pinion Bearing Spacer

Your vehicle may show several symptoms when the differential system isn’t functioning correctly. These signs include:

• Whining or howling noise from the rear axle

• Vibrations felt while accelerating

• Leaking differential fluid

• Excessive gear backlash

• Irregular wear on ring and pinion gears

How to Install the MOPAR 05066047AA

Installation should ideally be performed by a professional mechanic or technician. Proper tools like a bearing press, dial indicator, and torque wrench are often required. The general steps include:

1. Disassemble the differential housing.

2. Remove the old pinion bearing spacer.

3. Clean mating surfaces and prepare bearings.

4. Install the new MOPAR 05066047AA spacer.

5. Reassemble the differential with correct torque specifications.

6. Test for backlash and proper preload.

FAQs – MOPAR 05066047AA DIFFERENTIAL PINION BEARING SPACER

1. What is the function of a differential pinion bearing spacer?

It maintains the correct preload between the inner and outer pinion bearings, ensuring smooth and quiet operation of your vehicle’s differential.

2. How do I know if I need to replace this part?

Common signs include whining noises from the rear, excessive gear play, or during differential rebuilds or gear changes.

3. Is this part compatible with aftermarket gears?

Yes, but it’s always best to check compatibility with your gear brand or consult a professional installer.

4. Can I reuse the old pinion bearing spacer?

In most cases, no. Pinion spacers can compress and deform over time, which may cause incorrect preload. Always replace with a new MOPAR 05066047AA.

5. Is this an adjustable spacer?

No, this is a crush-type or fixed-type spacer, depending on your axle model. It’s made to exact OEM specs.

Conclusion: Depend on MOPAR 05066047AA for Differential Performance

The MOPAR 05066047AA DIFFERENTIAL PINION BEARING SPACER is a vital part of your drivetrain that ensures long-lasting performance, safety, and efficiency. Don’t take chances with aftermarket components that may not meet factory standards. With this genuine Mopar spacer, you’re choosing reliability, precision, and peace of mind.

At AU 4×4 Solution, we stock only the best parts for your 4WD and utility vehicles. Trust the MOPAR 05066047AA to deliver factory-grade quality every time you hit the road or trail.

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