551-01507 Steering Gear Rack Power Pinion Gear/rack

( Model: ELDORADO ), ( Part Type: Steering Pinion Gear Rack ), ( Conditions Options: 1yr ), ( Genuine Oem: Yes ), ( Ipn: 551-01507 ), ( Make: Cadillac ), ( Manufacturer Warranty: 90 Day ), ( Brand: Oem )

Review Steering Gear/rack Power Rack And Pinion fits ELDORADO SEVILLE 1986–1992

The **551-01507 Steering Gear/Rack Power Rack Pinion** is a precision-engineered component designed exclusively for the **1986-1989 and 1991-1992 Cadillac Seville**, ensuring seamless and reliable steering performance in these iconic luxury sedans. This high-quality replacement part is crafted to match the exact specifications of the original equipment manufacturer (OEM), delivering the same level of durability and responsiveness that drivers expect from this legendary vehicle. The pinion, a critical component of the power steering rack system, interfaces directly with the steering column and translates driver input into precise lateral movement of the front wheels, making it essential for smooth, controlled navigation. Constructed from hardened steel and treated with advanced heat-resistant coatings, this pinion is built to withstand the rigors of daily driving, including prolonged exposure to road debris, temperature fluctuations, and mechanical stress. Its meticulously machined teeth are designed to mesh flawlessly with the steering rack s gear teeth, minimizing wear and preventing premature failure a common issue in aging steering systems. Whether addressing a worn-out original part or upgrading for enhanced performance, this pinion serves as a dependable solution, restoring the Seville s effortless handling and reducing the risk of steering-related malfunctions. Ideal for both professional mechanics and DIY enthusiasts, this genuine replacement part is a straightforward upgrade that maintains the vehicle s original driving dynamics while extending the lifespan of the steering assembly.

### **Pros and Cons of buying a 551-01507 Steering Gear/Rack Power Rack Pinion for a 1986-1989 and 1991-1992 Chevrolet Seville**

1. **Direct OEM Replacement** This part is an original equipment (OEM) replacement from General Motors, ensuring a perfect fit with no modifications required. It maintains the factory specifications, which can improve handling and steering feel compared to aftermarket alternatives that may not match the original design.

2. **Reliability and Durability** As an OEM component, it is built to the same high standards as the parts installed in new vehicles at the time of manufacture. This reduces the risk of premature failure, especially if the original steering rack was worn or damaged.

3. **Compatibility with Original Systems** The steering gear/rack is designed to work seamlessly with the rest of the steering and suspension components in your Seville, including the tie rods, steering column, and power steering pump. This ensures proper alignment and smooth operation without the need for additional adjustments.

4. **Warranty Coverage** Purchasing from a reputable dealer or authorized GM parts supplier often includes a warranty, typically covering defects in materials and workmanship for a set period (e.g., 12 months or 12,000 miles). This provides peace of mind against early failure.

5. **Preservation of Vehicle Value** Using OEM parts helps maintain the integrity of your vehicle, especially if you plan to sell it in the future. Buyers often prefer cars with original or high-quality replacement parts, as it indicates better maintenance.

6. **Ease of Installation** Since this is a direct replacement, the installation process is straightforward for a mechanic with experience in GM vehicles from this era. No major modifications to the steering or suspension are needed, reducing labor time and cost.

7. **Consistency with Factory Performance** The steering feel, responsiveness, and precision will closely match the original vehicle s specifications. This is particularly important for drivers who prioritize accurate steering feedback and predictable handling.

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1. **Cost** OEM parts are generally more expensive than aftermarket alternatives. The 551-01507 steering rack can cost significantly more than a third-party rack, which may offer similar performance at a lower price. For a 1986-1992 Seville, prices can range from **$300 to $600 or more**, depending on availability and supplier.

2. **Limited Availability** While this part is not extremely rare, it may not be as widely stocked as more common OEM parts for newer vehicles. You may need to order it from a specialty auto parts dealer, a GM parts distributor, or even a salvage yard, which could delay installation.

3. **Potential for Counterfeit Parts** When purchasing OEM parts online, there is a risk of receiving counterfeit or refurbished parts that do not meet GM s original specifications. Always buy from trusted sources, such as authorized dealers, eBay with seller guarantees, or reputable online retailers like RockAuto or PartsGeek.

4. **Labor Costs** Replacing a steering rack typically requires removing the front wheels, disconnecting the tie rods, and often draining the power steering fluid. Labor costs can add **$150 to $300 or more**, depending on the shop s rates and location. This increases the total cost of the repair.

5. **Age-Related Wear** If the rest of your Seville s steering or suspension components (e.g., tie rods, bushings, or ball joints) are worn, replacing just the rack may not fully resolve steering issues. A full steering alignment or suspension inspection may be necessary afterward, adding to the expense.

6. **Potential for Hidden Damage** If the steering rack was damaged in an accident or due to wear, the issue may not be immediately obvious. A thorough inspection by a mechanic before purchase is advisable to avoid buying a faulty part.

7. **Longer Lead Times** Unlike aftermarket parts, which can often be shipped the same day, OEM parts may take several days or even weeks to arrive, depending on the supplier s inventory.

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The **551-01507 steering gear/rack** is an excellent choice for restoring or maintaining the original handling characteristics of your 1986-1989 or 1991-1992 Chevrolet Seville. Its OEM status ensures a perfect fit, reliability, and compatibility with the rest of your vehicle s systems. However, the higher cost and potential for limited availability may make it less appealing to budget-conscious buyers or those who prioritize convenience over authenticity.

If your primary goal is **performance, longevity, and preserving the vehicle s value**, the OEM part is the best option. If you are working with a tighter budget or need a quicker replacement, an **aftermarket rack** (such as those from Mopar, Moroso, or Steering Solutions) may offer a cost-effective alternative, though you should verify its compatibility and quality before purchasing.

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- Purchase the **551-01507 steering rack** from a trusted GM parts dealer or authorized supplier.

- Have a mechanic inspect the rest of your steering and suspension components (tie rods, bushings, etc.) to ensure they are in good condition.

- Consider getting a **power steering fluid flush** if the system hasn t been serviced in a while, as old fluid can accelerate wear on the new rack.

- Install the part as soon as possible to avoid exposure to dirt or damage during storage.

- Research **high-quality aftermarket alternatives** (e.g., Mopar 551-01507-compatible racks) and compare reviews for reliability.

- Ensure the aftermarket part is **GM-compatible** and has good feedback from owners of similar vehicles.

- If you choose an aftermarket part, still inspect the rest of the steering system to avoid future issues.

- Check for **recalls or common failure points** related to this part in your Seville s model years.

- Ask your mechanic for their opinion on whether the OEM part is worth the cost or if an aftermarket option would suffice.

- If possible, **test the steering rack** (if available from a salvage yard) to ensure it operates smoothly before finalizing the purchase.

Ultimately, the **551-01507 is the best choice for authenticity and long-term reliability**, but weigh the pros and cons against your budget and priorities. For most Seville owners who prioritize driving experience and vehicle integrity, the OEM part is well worth the investment.

Details:

Year: 1986, model: ELDORADO, Stock #: WU9052, Mileage: 139000. Notes: SEE PICS 6MO, 1YR, 3YR LABOR WR. See below for fitment information and any notes pertaining to this specific part. Donor Vehicle.

It is ready to ship and comes with a 90 day warranty. For more parts from this vehicle. This part will only fit: ELDORADO 86 Power Rack and Pinion: 87-89 Pinion; soft ride suspension system opt FE1, 91 RIVIERA w/touring suspension, ID UC, SEVILLE w/o handling system, 91-92 TORONADO UC.

part #: eldorado prices

• $50.00-$181.67

specifications steragebo:

• for models: Eldorado, Seville
• for years: 1986-1992
• model: Eldorado
• part type: Steering Pinion Gear Rack
• conditions options: 1yr
• genuine oem: Yes
• ipn: 551-01507
• make: Cadillac
• manufacturer warranty: 90 Day
• brand: Oem

payments steragebo:

• credit card: Discover
• other
• wallet: Google-pay

shipping steragebo:

• type: Fixed
• carrier: UPS
• class: Standard
• transit: 2-6 Days
• service: UPS Ground
• cost: $0.00

returns steragebo:

• time: 60 Days
• policy: Returns Accepted
• paid by: Seller

general steragebo:

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

offer steragebo:

• options: Ship-to-home
• quantity: 1
• started: April 2, 2026
• best offers: True
• sold: 0
• availability: In Stock

seller steragebo:

• # reviews: 15679
• city: Toledo, Ohio
• rating: 98.9%

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