1. Steering Racks & Gear Boxes For Sale
  2. sku: 18418313583557721
  3. INFINITI 551-10432

INFINITI 551-10432 Steering Gear Rack Power Pinion Gear/rack M37

fits model: Rwd. make: Infiniti. year: 2011–2013.

551-10432 Infiniti Steering Gear/rack Power Rack And Pinion Rwd Fits 11-13 M37 2068160

( Part Type: Steering Pinion Gear Rack ), ( Conditions Options: Rear Steering Rack; Hicas ), ( Genuine Oem: Yes ), ( Ipn: 551-10432 )

Review INFINITI Steering Gear/rack Power Rack And Pinion M37 fits RWD 2011–2013

The **Infiniti M37 551-10432 Steering Gear/Power Rack Pinion (RWD, 2011 2013)** is a precision-engineered, high-performance component designed exclusively for the rear-wheel-drive (RWD) variants of the Infiniti M37 platform, encompassing models like the G37, QX56, and select luxury sedans from the 2011 through 2013 model years. This steering rack pinion assembly represents the backbone of the vehicle s steering system, combining durability with responsive handling to deliver the refined yet sporty driving dynamics Infiniti intended for its performance-oriented lineup. Crafted from high-grade, corrosion-resistant materials, the rack pinion is engineered to withstand the rigors of daily driving, aggressive cornering, and extended use without compromising on precision. The design incorporates a helical gear system, ensuring smooth, linear steering feedback while minimizing play and noise, a hallmark of Infiniti s commitment to both luxury and performance. This particular unit is a direct-fit replacement, meticulously calibrated to match the original equipment specifications, including the correct pinion shaft length, rack travel, and mounting points, ensuring seamless integration with the vehicle s suspension geometry. Whether restoring a classic M37 to factory specifications or upgrading an existing system for enhanced durability, this steering rack pinion is a critical component that bridges the driver s intent with the car s responsive handling, embodying the perfect blend of engineering excellence and driving enjoyment.

### **Pros and Cons of Buying an Infiniti M37 (2011-2013) with the 551-10432 Steering Gear/Rack Power Rack Pinion (RWD)**

#### **Pros**

1. **Reliable Engine and Performance**

The M37 V6 engine (3.7L) is a well-regarded powerplant known for its durability and strong performance. It produces around **306 horsepower and 270 lb-ft of torque**, making it capable of handling daily driving and spirited acceleration. With proper maintenance, it can easily last **200,000 miles**.

2. **Comfortable and Refined Ride**

The M37 comes with a **smooth suspension setup**, including **adaptive dampers** (on later models) and a **quiet cabin**, which makes it a comfortable choice for both city and highway driving. The **rear-wheel-drive layout** also contributes to a more engaging driving experience compared to FWD vehicles.

3. **Good Resale Value**

Infiniti s luxury segment vehicles, especially the M37, hold their value relatively well compared to some competitors. This means you may recover a decent portion of your investment if you decide to sell later.

4. **Luxury Features and Comfort**

The M37 includes **high-quality materials**, **comfortable seating**, and **standard features** such as:

- **Leather upholstery** (with available options like heated/ventilated seats)

- **Power-adjustable driver s seat**

- **Bluetooth and USB connectivity** (for its time)

- **Available navigation system**

- **Ambient lighting and premium audio options**

These features make it a more comfortable and premium choice than many base-level luxury or performance cars.

5. **Steering Gear/Rack Reliability (When in Good Condition)**

The **551-10432 steering rack** (a common part number for the M37) is generally **durable** if it has been maintained properly. However, **wear and tear** can occur over time, leading to **play, leaks, or failure**. If the rack is in good condition, it should last **100,000 miles** without major issues.

6. **Aftermarket and Customization Potential**

The M37 has a **dedicated fanbase**, leading to **aftermarket support** for tuning, suspension upgrades, and cosmetic modifications. This makes it easier to **personalize** the car to your liking.

7. **Lower Running Costs Compared to High-Performance Luxury Cars**

While it s not a budget car, the **V6 engine is more fuel-efficient** than a supercharged or turbocharged luxury performance vehicle. Maintenance costs are also **lower than those of a BMW M3 or Audi S6**, making it a practical luxury choice.

---

#### **Cons**

1. **Steering Rack Issues (Common Problem)**

The **551-10432 steering rack** is notorious for **leaking power steering fluid** and **developing excessive play or stiffness** over time. Many owners report:

- **Fluid leaks** (often from the **tie rod ends or rack seals**)

- **Stiff or jerky steering** (due to worn internal components)

- **Whining or clicking noises** (indicating worn bearings or seals)

Replacing the rack can be **expensive ($1,000 $1,800 installed)**, and if neglected, it can lead to **serious handling issues**.

2. **Transmission Problems (Especially in Early Models)**

The **6-speed automatic transmission (Jatco JF011E)** in the M37 has had **reputation issues**, particularly in **2011 2012 models**. Common problems include:

- **Delayed or rough shifts**

- **Transmission slipping or hesitation**

- **Solenoid or valve body failures**

While later models (2013 ) improved, **early M37s may require transmission work**, adding to maintenance costs.

3. **Higher Maintenance Costs Than Mass-Market Cars**

Infiniti parts and labor can be **more expensive** than those of a Toyota Camry or Honda Accord. **Oil changes, brake jobs, and suspension work** will cost more than on a non-luxury vehicle.

4. **Fuel Economy is Average for a Luxury Car**

The M37 gets around **18 20 MPG in the city and 26 28 MPG on the highway**, which is **decent but not exceptional** for a V6 luxury sedan. If fuel efficiency is a priority, you might consider a **hybrid or smaller engine**.

5. **Infotainment System Limitations**

The **early M37 models (2011 2012) have a basic infotainment system** with **no Apple CarPlay or Android Auto**. While later models improved, the **lack of modern connectivity** can be frustrating in today s smartphone-dependent world.

6. **Rear Seat Space is Tight**

The M37 is a **four-door sedan**, but the **rear seats are narrow and not as spacious** as in larger luxury sedans (e.g., BMW 5 Series, Lexus GS). This may be an issue if you frequently carry passengers or cargo.

7. **Depreciation Over Time**

While the M37 holds value better than some luxury cars, it still **loses significant value in the first few years**. If you plan to keep it long-term, this may not be a major concern, but if you want to sell early, **resale value may not be as strong as a Toyota or Lexus**.

8. **Potential Electrical Gremlins**

Like many luxury vehicles, the M37 can have **occasional electrical issues**, such as:

- **Faulty window regulators**

- **Intermittent sensor problems**

- **Power seat or mirror malfunctions**

These are usually **minor annoyances** but can be frustrating if they occur frequently.

---

### **Ending Conclusion**

The **2011 2013 Infiniti M37 with the 551-10432 steering rack** is a **well-built, capable luxury sedan** that offers a **good balance of performance, comfort, and refinement**. However, **potential steering rack issues, transmission concerns (especially in early models), and higher maintenance costs** are significant drawbacks that must be considered.

If you **inspect the steering rack thoroughly** (checking for leaks, play, and smooth operation) and **verify transmission health**, this car can be a **great purchase** for someone who wants a **reliable, engaging, and comfortable luxury sedan**. It s particularly appealing if you:

- Prefer **RWD dynamics** over FWD stability.

- Want a **premium interior** without the price tag of a BMW or Mercedes.

- Are willing to **budget for potential steering and transmission maintenance**.

If you **find a well-maintained example with a fresh steering rack and transmission service history**, the M37 can be a **solid long-term investment**. However, if **steering issues or transmission problems are present**, it may not be worth the risk unless you re prepared for **significant repairs**.

---

### **Final Recommendation**

**Buy the Infiniti M37 if:**

You **prioritize comfort, luxury, and driving enjoyment** over raw performance.

The **steering rack has been recently replaced or is in excellent condition** (no leaks, smooth operation).

The **transmission has been serviced and runs smoothly** (no hesitation or slipping).

You re **willing to budget for potential future maintenance** (steering, suspension, transmission).

You **prefer RWD over AWD or FWD** for better handling.

**Avoid the Infiniti M37 if:**

You **cannot afford or do not want to deal with potential steering rack or transmission issues**.

The **car has a history of neglect** (no service records, obvious leaks, or rough shifting).

You **need maximum fuel efficiency** (consider a hybrid or smaller engine).

You **require cutting-edge tech** (no CarPlay/Android Auto, outdated infotainment).

**Best Approach:**

- **Get a pre-purchase inspection (PPI) focused on the steering rack, transmission, and suspension.**

- **Check for fluid leaks (power steering, transmission, coolant).**

- **Test drive for smooth steering, no jerks, and proper transmission shifts.**

- **Verify maintenance records** (oil changes, timing belt, suspension work).

If all checks out, the **M37 is a fantastic choice** one of the best **luxury sedans of its era**. If not, consider **alternatives like a Lexus GS, BMW 5 Series, or Audi S6** for similar driving dynamics with potentially fewer issues.

Details:

INFINITI M37 11-13 Power Rack and Pinion, RWD, rear, HICAS, 4 wheel steering. INFINITI M56 11-13 Power Rack and Pinion, RWD, rear, HICAS, 4 wheel steering.

part #: 551-10432 prices

  • $735.99-$1034.00

specifications steragebo:

  • for models: Rwd
  • for makes: Infiniti
  • for years: 2011-2013
  • part type: Steering Pinion Gear Rack
  • conditions options: Rear Steering Rack; Hicas
  • genuine oem: Yes
  • ipn: 551-10432

payments steragebo:

  • credit card: Visa
  • wallet: Paypal
  • other

seller steragebo:

  • rating: 100.0%
  • city: Laurel,
  • # reviews: 132

offer steragebo:

  • sold: 0
  • availability: In Stock
  • quantity: 1
  • best offers: True
  • options: Ship-to-home
  • started: March 18, 2026

general steragebo:

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

shipping steragebo:

  • cost: $0.00
  • transit: 5-10 Days
  • class: Expedited
  • carrier: USPS
  • type: Fixed
  • service: USPS Priority Mail

returns steragebo:

  • time: 60 Days
  • policy: Returns Accepted
  • paid by: Seller
for models: rwd, for makes: infiniti, for years: 2011-2013, part type: steering pinion gear rack, conditions options: rear steering rack; hicas, genuine oem: yes,
manufacturer: infiniti, category: auto parts > car truck parts accessories > steering suspension > gearboxes, rack pinions, sku: 18418313583557721,
Infiniti 2068160 Is Similar To:
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4 offers $735.99–$1034.00 USD
  • Used. Offer #1 priced at $819.80 + $0.00 shipping estimate = $819.80* total. REAR STEERING RACK; HICAS INFINITI M37 11-13 Power Rack and Pinion, RWD, rear, (HICAS, 4 wheel steering).FREE SHIPPING
  • Used. Offer #2 priced at $735.99 + $0.00 shipping estimate = $735.99* total. In great condition and fully tested Rear steering actuator for the 4-wheel steering system (HICAS).FREE SHIPPING
  • Used. Offer #3 priced at $1034.00 + $0.00 shipping estimate = $1034.00* total. REAR RACK AND PINION.FREE SHIPPING
  • Used. Offer #4 priced at $1540.03 + $0.00 shipping estimate = $1540.03* total. Dealers often provide part numbers that are not physically marked on the part as they update part numbers for existing parts.FREE SHIPPING

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