MAZDA N3H1-11-D19 Front Eccentric Shaft Key RX8

( Manufacturer Part Number: N3H1-11-D19 ), ( Part Type: Shaft ), ( Material: Steel ), ( Vintage Part: Yes ), ( Performance Part: No )

Review MAZDA Rx8 Used Front Eccentric Shaft Key To fits 2004–2011

The **Mazda N3H1-11-D19 RX8 Front Eccentric Shaft Key** is a precision-engineered component essential for maintaining optimal performance and longevity in the iconic Mazda RX-8 s front suspension system, specifically models produced between 2004 and 2011. This critical part serves as the pivotal link between the front eccentric shaft and the steering mechanism, ensuring smooth, responsive handling while absorbing the dynamic stresses of daily driving, spirited cornering, or track use. Crafted from high-grade steel, the shaft key is designed to withstand the relentless forces exerted during high-speed maneuvers, aggressive acceleration, or uneven road surfaces, where misalignment or wear could compromise steering precision and vehicle stability. Its unique **N3H1-11-D19** designation corresponds to Mazda s proprietary coding system, indicating compatibility with the RX-8 s front-wheel-drive architecture and the specific 13B engine variant, which powers the car s legendary rotary performance. The key s eccentric design allows for precise adjustment of the steering geometry, enabling mechanics to fine-tune camber and caster angles to match the driver s preferences or compensate for wear over time. Whether replacing a worn-out original part or upgrading for enhanced durability, this shaft key is a must-have for enthusiasts seeking to preserve the RX-8 s legendary driving dynamics or restore a neglected vehicle to its peak condition. Its straightforward yet vital function underscores its importance in the broader context of the RX-8 s suspension tuning, making it a small but indispensable piece for any owner committed to maintaining their car s legendary balance of power, agility, and refinement.

### **Pros and Cons of Buying a Mazda RX-8 (N3H1-11-D19) with a Front Eccentric Shaft Key (2004 2011)**

#### **Pros**

1. **Unique and Desirable Design**

The RX-8 stands out with its distinctive wedge shape, rotary engine sound, and retro-futuristic styling. It remains a cult favorite among enthusiasts, making it a conversation starter and a visually appealing car.

2. **Rotary Engine Performance**

The 13B-REW rotary engine (in the 2004 2011 models) delivers smooth, high-revving power with instant throttle response. The 231 hp (in the 2004 2007) and 240 hp (2008 2011) variants provide engaging driving dynamics, especially in a lightweight chassis.

3. **Lightweight and Agile Handling**

The RX-8 s aluminum body and compact size make it nimble and fun to drive, particularly in twisty roads. The independent suspension and precise steering enhance its sporty nature.

4. **Low Maintenance (Compared to Rotaries in General)**

Mazda s rotary engines in this era were designed with reliability in mind, featuring improved oil circulation and cooling systems. With proper maintenance, they can last well beyond 100,000 miles.

5. **Aftermarket Support and Modding Potential**

The RX-8 has a strong aftermarket community, offering everything from performance upgrades (turbo kits, exhaust systems) to cosmetic modifications. This makes it easy to personalize and enhance.

6. **Good Fuel Economy for a Sports Car**

While not a hybrid, the RX-8 achieves around **18 22 MPG city** and **25 30 MPG highway**, which is respectable for a car of its class.

7. **Discontinued Status Adds Appeal**

Since production ended in 2012, parts can be harder to find, increasing the perceived value of well-maintained examples. This scarcity also drives up prices for low-mileage or restored models.

---

#### **Cons**

1. **Rotary Engine Reliability Concerns**

While Mazda improved the 13B engine, rotaries are still prone to **oil consumption, carbon buildup, and potential rotor wear** if not maintained meticulously. Some owners report excessive oil usage, requiring frequent top-ups.

2. **High Maintenance Costs**

Parts for the RX-8 can be expensive, especially if you need rare or aftermarket components. Labor costs may also be higher due to specialized knowledge required for rotary engines.

3. **Depreciation and Resale Value**

The RX-8 has already depreciated significantly since its peak popularity. While it holds value better than some other niche cars, it won t appreciate like a classic or a modern supercar.

4. **Limited Practicality**

The RX-8 is a two-seater with minimal trunk space (only 6.6 cu ft), making it impractical for daily use with passengers or cargo. Its small size also means less comfort on long drives.

5. **Electrical and Computer Issues**

Some models (especially later ones) have reported **electrical gremlins**, including sensor failures, infotainment glitches, and transmission control module issues. These can be costly to diagnose and fix.

6. **Rust Concerns (Especially in Older Models)**

Early RX-8s (pre-2007) were criticized for **poor rust protection**, particularly in the wheel wells, rocker panels, and undercarriage. A thorough inspection is essential before purchasing.

7. **Limited Availability of New Parts**

While not as scarce as some discontinued cars, finding OEM parts for the RX-8 can be challenging. Many owners rely on aftermarket suppliers, which may not always match original quality.

8. **Noise and Vibration**

The rotary engine can be loud at high RPMs, and some owners report **excessive vibration** in certain conditions, particularly if the engine mounts or suspension are worn.

9. **Transmission Issues (In Some Cases)**

The automatic transmission (in later models) has had reports of **rough shifting, delayed engagement, and solenoid failures**, though manual transmissions are generally more reliable.

10. **Environmental Concerns**

Rotary engines are not as fuel-efficient or low-emission as modern hybrids or electric cars. If you prioritize eco-friendliness, the RX-8 is not the best choice.

---

### **Conclusion**

The **Mazda RX-8 (2004 2011) with a front eccentric shaft key** is a **fantastic choice for enthusiasts** who prioritize driving fun, unique styling, and rotary engine charm. It excels in **performance, handling, and modding potential**, making it ideal for weekend drivers and track enthusiasts. However, it comes with **higher maintenance costs, reliability risks, and practical limitations** that may deter casual buyers.

- **Love rotary engines and don t mind extra upkeep**

- **Want a fun, lightweight sports car for spirited driving**

- **Are prepared for potential oil consumption and part costs**

- **Don t need a practical daily driver**

then the RX-8 is a **great purchase**.

- **Need a reliable, low-maintenance car**

- **Require space for passengers or cargo**

- **Are concerned about long-term reliability without deep mechanical knowledge**

- **Prefer modern fuel efficiency and emissions compliance**

then the RX-8 may not be the best fit.

---

### **Recommendation**

You ve **thoroughly inspected the engine** (check for oil leaks, rotor condition, and carbon buildup).

You re **prepared for regular maintenance** (oil changes every 3,000 5,000 miles, rotor inspections).

You **enjoy driving a unique, high-revving sports car** over practicality.

You **find a low-mileage example (under 80,000 miles) with a clean service history**.

You **can t afford potential repair costs** (especially if the engine shows signs of wear).

You **need a daily driver** with modern safety and convenience features.

You **don t have access to a mechanic familiar with rotary engines**.

**Final Verdict:** The RX-8 is a **passion project car** best suited for those who appreciate its quirks and are willing to invest time and money to keep it running. For the right buyer, it s an **unmatched driving experience**, but it s not a "set it and forget it" purchase.

Details:

2004 To 2011 Mazda Rx-8.

part #: n3h111d19 prices

• $8.99-$19.95

specifications cranshafengin:

• for makes: Mazda
• for years: 2004-2011
• mpn: N3h1-11-d19
• part type: Shaft
• material: Steel
• vintage part: Yes
• performance part: No

payments cranshafengin:

• other
• credit card: Diners-club
• wallet: Apple-pay

seller cranshafengin:

• city: Eatonville, Washington
• rating: 100.0%
• # reviews: 23277

general cranshafengin:

• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
• condition: Used

shipping cranshafengin:

• service: USPS Priority Mail
• cost: $0.00
• class: Expedited
• transit: 3-8 Days
• type: Fixed
• carrier: USPS

returns cranshafengin:

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

offer cranshafengin:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: May 18, 2026

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