JEEP 551.AM8715 Power Steering Gear Rack Pinion Grandcher 3.6L

( Model: GRANDCHER ), ( Part Type: Steering Pinion Gear Rack ), ( Conditions Options: Has Normal ), ( Genuine Oem: Yes ), ( Ipn: 551.am8715 ), ( Descriptionpartcondition: Look, Enlarge And The Images In Detail For Verifying The P )

Review JEEP 3.6l Power Steering Gear Rack Pinion Oem fits CHEROKEE GRAND 4WD 2015

The **2015 Jeep Cherokee 3.6L 4WD Power Steering Gear Rack & Pinion (Part #551.AM8715)** is a high-performance, precision-engineered steering component designed exclusively for Jeep s iconic 2015 model year Cherokee SUVs equipped with the 3.6L Pentastar V6 engine and four-wheel-drive systems. This rack-and-pinion assembly represents the pinnacle of modern automotive steering technology, delivering exceptional responsiveness, durability, and off-road capability while maintaining the signature Jeep ruggedness. Crafted from high-grade steel and reinforced polymer materials, the steering gear is engineered to withstand the demands of both urban commuting and extreme off-road adventures, ensuring smooth, predictable steering feedback even under heavy loads or rough terrain. The pinion, a critical component that translates driver input into precise wheel movement, is machined to exacting tolerances to minimize play and maximize efficiency, while the rack itself is designed with a compact yet robust structure to fit seamlessly into the Cherokee s front suspension bay. This steering system is compatible with the vehicle s electronic power steering (EPS) module, providing effortless maneuverability at low speeds while retaining the tactile feel of mechanical feedback at higher velocities. Whether navigating tight city streets, tackling rocky trails, or hauling heavy payloads, this rack-and-pinion assembly ensures reliable performance and longevity, making it an essential upgrade or replacement part for Jeep enthusiasts seeking to maintain their vehicle s handling integrity. Built to meet or exceed OEM specifications, it is a direct-fit solution that restores optimal steering geometry, reduces unnecessary wear on related components like tie rods and ball joints, and enhances overall driving confidence. For owners looking to restore their Cherokee to factory-like condition or upgrade to a higher-quality steering system, this **551.AM8715** rack-and-pinion is a superior choice, blending Jeep s legendary off-road heritage with cutting-edge automotive engineering.

### Pros and Cons of Buying a 2015 Jeep Cherokee 3.6L 4WD (551.AM8715) with Power Steering Gear Rack and Pinion

#### **Pros**

1. **Reliability of the 3.6L Pentastar Engine**

The 3.6-liter Pentastar V6 is known for its durability and efficiency. It is a modern engine with good fuel economy (around 20-22 MPG combined) and lower emissions compared to older Jeep engines. Many owners report few issues with this engine if maintained properly.

2. **Four-Wheel Drive Capability**

The 4WD system is robust and suitable for light off-road use, snow, or rough terrain. The part-time 4WD (if equipped) provides better control in challenging conditions compared to front-wheel drive vehicles.

3. **Comfortable Ride and Interior Quality**

The 2015 Cherokee offers a relatively smooth ride for an SUV of its size, with decent suspension tuning. The interior is well-built, with durable materials in most trims, and features like power-adjustable seats, heated front seats, and available leather upholstery add to comfort.

4. **Modern Tech and Safety Features**

The 2015 model comes with standard features like a touchscreen infotainment system (Uconnect), Bluetooth connectivity, and available safety tech such as stability control, traction control, and airbags. Some trims include lane departure warning and forward collision alert, which are valuable for safety.

5. **Resale Value and Availability of Parts**

As a relatively recent model (pre-2017), parts are widely available, and the vehicle holds its value better than older Jeeps. The 3.6L engine and 4WD system are common enough that mechanics are familiar with them.

6. **Fuel Efficiency**

The 3.6L V6 offers better fuel economy than many older Jeep SUVs with V8 engines, making it more cost-effective for daily driving.

7. **Off-Road Potential (with Proper Modifications)**

While not a true off-roader, the Cherokee can handle light trails with the right tires and some modifications (like a lift kit or skid plates). The rack-and-pinion steering is more precise than older recirculating-ball systems.

---

#### **Cons**

1. **Transmission Issues (If Equipped with 6-Speed Automatic)**

Some 2015 Cherokee models with the 6-speed automatic transmission (especially those with the 3.6L engine) have reported transmission hesitation, rough shifting, or failure over time. This can be costly to repair, often requiring a full transmission replacement (which can exceed $3,000).

2. **Power Steering Gear Rack and Pinion Problems**

The rack-and-pinion steering system in some Jeep Cherokees (including this model) has been known to develop leaks, binding, or excessive play. The power steering fluid can leak from the rack, leading to a stiff or unresponsive steering wheel. Replacing the rack can be expensive (often $800 $1,500 including labor).

3. **Suspension Wear and Tear**

The suspension components (shocks, struts, bushings) may wear out faster than expected, especially if the vehicle has seen rough treatment. Replacing these parts can add up over time.

4. **Electrical Gremlins**

Some owners report issues with the Uconnect system freezing, Bluetooth connectivity problems, or dashboard warning lights that pop up without cause. These can be frustrating and may require diagnostic work.

5. **Rust Concerns (Especially in Snowy or Coastal Areas)**

If the vehicle has been exposed to salt, moisture, or poor maintenance, rust can develop on the undercarriage, wheel wells, or frame. Inspect these areas carefully before purchasing.

6. **Limited Off-Road Capabilities**

While the 4WD is functional, the Cherokee is not designed for serious off-roading. It lacks features like locking differentials, high ground clearance (without modifications), or robust protection for critical components.

7. **Interior Durability (Lower Trims)**

Some owners note that cheaper materials in lower trims (like Sport or Latitude) can wear out faster, particularly the center console, door panels, and floor mats.

8. **Potential Oil Consumption (3.6L Engine)**

While not universal, some Pentastar engines (especially in early models) have been reported to burn oil. This can lead to frequent oil top-ups or, in severe cases, engine damage. Check maintenance records for oil changes and consumption history.

---

### **Key Considerations Before Purchase**

1. **Transmission History**

- If the vehicle has a 6-speed automatic, ask for service records to confirm no transmission issues. Consider getting a pre-purchase inspection (PPI) to test the transmission under load.

2. **Power Steering Condition**

- Check for leaks around the steering rack. Test the steering for smoothness excessive play or stiffness could indicate rack failure. If the rack is leaking, budget for a replacement.

3. **Suspension and Alignment**

- Inspect shocks, struts, bushings, and ball joints. Uneven tire wear or a rough ride may indicate suspension problems.

4. **Underbody Rust**

- Lift the vehicle and inspect the frame, subframe, and wheel wells for rust. Rust can weaken structural integrity.

5. **Maintenance Records**

- Verify that oil changes, fluid flushes (coolant, transmission, power steering), and major services (timing belt, spark plugs) have been done on time.

6. **Test Drive**

- Transmission shifts (should be smooth and quick).

- Steering response (no grinding, whining, or excessive effort).

- Braking (no pulling or unusual noises).

- 4WD engagement (should lock in smoothly without hesitation).

---

### **Ending Conclusion**

The **2015 Jeep Cherokee 3.6L 4WD with rack-and-pinion steering** is a solid choice for buyers who prioritize reliability, fuel efficiency, and modern features while expecting a capable (though not extreme) off-road SUV. The **3.6L Pentastar engine** is one of the strongest aspects of this vehicle, offering longevity if maintained properly. However, **transmission and power steering issues** are notable weak points, particularly in this model year. The **rack-and-pinion steering** can be a significant expense if it fails, and the **6-speed automatic transmission** has had reliability concerns in some cases.

If you find a well-maintained example with **clean service records, no transmission complaints, and no power steering leaks**, this Cherokee can be a great daily driver and light off-roader. **Avoid vehicles with a history of rough shifting, oil burning, or neglected maintenance**, as these can turn into costly problems.

---

### **Recommendation**

- You find a vehicle with **verified maintenance records**, especially for the transmission and power steering.

- The **steering rack shows no leaks**, and the transmission shifts smoothly during a test drive.

- You re okay with **light off-roading** and don t expect extreme terrain performance.

- The price is **competitive** (aim for **$10,000 $14,000** depending on mileage and condition).

- The seller cannot provide **transmission or power steering service history**.

- The vehicle has **excessive mileage (over 120,000 miles) without proof of maintenance**.

- You notice **transmission hesitation, power steering leaks, or suspension issues** during inspection.

- The **underbody has significant rust** that hasn t been addressed.

- **Transmission fluid flush** ($150 $300) if not done recently.

- **Power steering fluid replacement** ($100 $200) and inspection of the rack.

- **Suspension components** (shocks, struts, bushings) if worn ($500 $1,500 depending on parts).

- **Pre-purchase inspection** ($100 $200) to catch hidden issues.

**Final Verdict:** This Jeep can be a **great value** if you re diligent about inspection and maintenance, but it requires **smart buying** to avoid common pitfalls. If you re comfortable with its limitations and find a well-cared-for example, it s a practical and capable SUV. If you re unsure, consider a **pre-owned model with fewer issues** (e.g., 2016 2017 Cherokee) or explore alternatives like the **Toyota RAV4 or Honda CR-V** for lower-risk options.

Details:

Standard Warranty. HAS NORMAL WEAR.445119302 2015 JEEP GRAND CHEROKEE 3.6L 4WD POWER STEERING GEAR RACK PINION OEM.

specifications steragebo:

• for models: 4wd, Cherokee, Grand
• for makes: Jeep
• for years: 2015
• model: Grandcher
• part type: Steering Pinion Gear Rack
• conditions options: Has Normal
• genuine oem: Yes
• ipn: 551.am8715
• descriptionpartcondition: Look, Enlarge And The Images In Detail For Verifying The P

returns steragebo:

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

shipping steragebo:

• cost: $39.90
• class: Expedited, Standard
• carrier: USPS, UPS
• transit: 3-7 Days
• type: Fixed
• service: USPS Priority Mail, UPS Ground

seller steragebo:

• rating: 99.1%
• city: Trenton, New Jersey
• # reviews: 9624

offer steragebo:

• started: March 10, 2026
• options: Ship-to-home
• sold: 0
• availability: In Stock
• best offers: True
• quantity: 1

payments steragebo:

• other
• credit card: Mastercard
• wallet: Apple-pay

general steragebo:

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

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