MOPAR R5085520AB Rack Pinion Gear

( Manufacturer Part Number: R5085520AB ), ( Year: 2004 2005 2006 2007 2008 2009 ), ( Parts Included: Only Part Reference 1 On The Diagram Is Included ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Genuine Oem: Yes ), ( Make: Chrysler ), ( Type: Steering, Gear And Related Components )

Review MOPAR Genuine Rack And Pinion Gear Remanufactured fits 2004–2009

The **Mopar R5085520AB Rack and Pinion Gear** is a high-performance, precision-engineered component designed specifically for Chrysler, Dodge, and Jeep vehicles equipped with the iconic rack-and-pinion steering system. This critical part plays a pivotal role in translating the driver s steering wheel input into smooth, responsive lateral movement of the front wheels, ensuring optimal handling, accuracy, and durability under demanding driving conditions. Crafted from premium-grade materials, including hardened steel and corrosion-resistant coatings, the R5085520AB is built to withstand the rigors of daily use, off-road adventures, or high-performance applications, delivering consistent performance even in extreme environments. The rack features a helical gear design, which minimizes backlash and reduces wear, while the pinion gear precision-machined to exacting tolerances engages seamlessly with the rack teeth, providing a tight, noise-free connection that enhances steering feel and reduces play. This component is engineered to fit a wide range of vehicles, including models such as the Jeep Wrangler, Dodge Ram, Chrysler 300, and other select Chrysler Group platforms, ensuring compatibility with both stock and modified setups. Whether used in a factory replacement scenario or as part of a steering system upgrade, the R5085520AB offers superior strength, longevity, and reliability, making it an essential choice for drivers seeking a balance of performance and durability. Its robust construction and seamless integration with the vehicle s steering linkage system contribute to a more precise, predictable, and enjoyable driving experience, while its compatibility with aftermarket steering components further expands its versatility for customization.

### **Pros and Cons of buying a Mopar R5085520AB (Rack and Pinion Gear Set)**

The Mopar R5085520AB is a direct-fit replacement for the rack and pinion gear set in certain Chrysler, Dodge, and Jeep vehicles, particularly those with the **Rack & Pinion Steering System**. Here are the key advantages of purchasing this part:

1. **OEM Quality and Fit** This is a genuine Mopar (Chrysler/Dodge) part, meaning it is designed to match the original specifications of your vehicle. It should fit without modifications and maintain proper alignment and steering feel.

2. **Reliability and Durability** Mopar parts are built to factory standards, which generally means better longevity compared to aftermarket knockoffs. The gear set is engineered to handle the steering loads of the vehicle without excessive wear.

3. **Compatibility with Original Steering System** Since it is an exact replacement, it will work seamlessly with the existing steering rack, tie rods, and other components, reducing the need for additional adjustments.

4. **Warranty Coverage** Purchasing from an authorized Mopar dealer or reputable retailer may include a warranty, providing peace of mind against defects in materials or workmanship.

5. **Performance Consistency** The gear set is designed to provide the same level of responsiveness and precision as the original, ensuring predictable steering behavior.

6. **Ease of Installation** As a direct replacement, it should install similarly to the original part, though some basic mechanical skill is still required for proper installation (e.g., aligning the rack, securing bolts, and bleeding the power steering system if applicable).

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1. **Cost** Genuine Mopar parts are typically more expensive than aftermarket alternatives. Depending on the vehicle model, labor costs for installation, and whether you need additional components (e.g., seals, tie rods), the total repair cost can be significant.

2. **Limited Availability for Older or Niche Models** Some Chrysler/Dodge/Jeep vehicles, particularly older or less common models, may have discontinued rack and pinion gear sets. You may need to source the part from a specialty supplier or salvage yard, which could delay repairs.

3. **Potential for Wear in Older Vehicles** If the vehicle has high mileage or a history of neglect (e.g., fluid leaks, improper alignment), the new gear set may still fail prematurely if underlying issues (e.g., bent tie rods, worn bushings, or hydraulic leaks) are not addressed.

- Proper alignment of the rack and pinion.

- Correct torque specifications for bolts.

- Bleeding the power steering system (if applicable) to avoid air bubbles.

- Ensuring no debris enters the system during installation.

Poor installation can lead to premature failure or steering issues.

5. **No Upgrades in Performance** Unlike some aftermarket rack and pinion kits, this is not an upgraded part. It will not improve handling, reduce noise, or enhance durability beyond the original specifications.

6. **Environmental and Mechanical Factors** Exposure to road salt, moisture, or extreme temperatures can accelerate wear in the gear set, even if it is a high-quality OEM part. Regular maintenance (e.g., power steering fluid changes) is essential.

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The Mopar R5085520AB rack and pinion gear set is an excellent choice for owners of compatible Chrysler, Dodge, or Jeep vehicles who prioritize **reliability, fitment, and OEM quality**. It is ideal for those who want a direct replacement without compromising on performance or longevity. However, the higher cost and potential installation challenges mean it may not be the best option for budget-conscious buyers or those without basic mechanical skills.

If your vehicle s original rack and pinion is failing and you want a part that will last as long as possible while maintaining factory specifications, this is a strong recommendation. For those looking to save money or upgrade performance, aftermarket alternatives (from reputable brands like ACDelco, Moog, or Mopar s own aftermarket line) should be considered but always ensure compatibility and quality.

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- You own a compatible Chrysler, Dodge, or Jeep vehicle with a failing rack and pinion.

- You want a genuine OEM replacement with no fitment issues.

- You are willing to invest in quality and have access to proper installation tools.

- You plan to perform the installation yourself or work with a trusted mechanic.

- You are on a tight budget and can find a high-quality aftermarket gear set (e.g., from Moog or ACDelco) that fits your vehicle.

- Your vehicle has additional steering components (e.g., tie rods, bushings) that need replacement, and you want to bundle parts for cost savings.

- You are unsure about installation and prefer to have a mechanic handle the job (though always verify their experience with rack and pinion systems).

**Final Note:** Always cross-reference the part number with your vehicle s specific model and year to confirm compatibility. If the part is no longer in production, explore salvage yards or authorized Mopar reconditioned parts for a cost-effective solution. Regular maintenance (power steering fluid changes, alignment checks) will extend the life of the new gear set.

Details:

Electrical parts are not returnable. Genuine Mopar Parts. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Parts must be resalable and in the original packaging.

In stock orders ship within 24 hours.

part #: r5085520ab prices

• $66.00-$74.61

specifications steragebo:

• for makes: Mopar
• for years: 2004-2009
• mpn: R5085520ab
• year: 2004 2005 2006 2007 2008 2009
• parts included: Only Part Reference 1 On The Diagram Is Included
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• genuine oem: Yes
• make: Chrysler
• type: Steering, Gear And Related Components

returns steragebo:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

offer steragebo:

• quantity: 10
• started: May 29, 2026
• options: Ship-to-home
• sold: 0
• availability: In Stock

payments steragebo:

• wallet: Paypal
• other
• credit card: Visa

general steragebo:

• condition: Remanufactured
• Car Truck Parts Accessories > Steering Suspension > Gearboxes, Rack Pinions

shipping steragebo:

• type: Fixed
• class: Standard
• transit: 5-11 Days
• service: Standard
• cost: $48.37

seller steragebo:

• rating: 99.4%
• # reviews: 2946
• city: Richmond, Michigan

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