MAZDA F151-34-300B Front Right Passenger Lower Arm Control RX-8 Right/passenger

( Manufacturer Part Number: F151-34-300B ), ( Model: RX-8 ), ( Part Type: Control Arm ), ( Part Category: Control-arm-lower-fr ), ( Storage Location: 16h-s1-p2 ), ( Fitment Type: Direct Replacement ), ( Genuine Oem: Yes ), ( Part Source: Genuine Oem ), ( Name: Control-arm-lower-front ), ( Ipn: F151 34 300b ), ( Manufacturer Warranty: 90 Day )

Review MAZDA Rx8 Front Right/passenger Lower Arm Control fits 2004–2008

The **Mazda F151-34-300B (2004 2008 RX-8 Front Right/Passenger Lower Arm Control Arm)** is a precision-engineered suspension component designed specifically for Mazda s iconic RX-8 model, ensuring optimal handling, stability, and ride comfort during both spirited driving and everyday use. Crafted from high-grade, heat-treated steel, this lower control arm is built to withstand the demands of dynamic driving conditions while maintaining structural integrity over the long term. The arm features a robust, bolt-on design with strategically placed mounting points that align perfectly with the RX-8 s suspension geometry, allowing for proper camber and caster adjustments to enhance tire contact and responsiveness. Its durable construction minimizes flex under load, reducing unnecessary wear on bushings and tires while delivering a more predictable and engaging driving experience. Whether navigating tight corners at high speeds or maintaining smoothness over uneven pavement, this lower arm plays a critical role in maintaining the RX-8 s legendary balance between sportiness and comfort. Ideal for both original equipment replacement and performance upgrades, this part is a direct fit for the 2004 through 2008 RX-8 models, ensuring seamless integration with the existing suspension system. For enthusiasts seeking to refine their vehicle s handling or restore it to factory specifications, this control arm is an essential component that upholds the RX-8 s reputation for precision engineering and driver engagement.

### Pros and Cons of Buying a Mazda F151-34-300B (2004 2008 RX-8) Front Right/Passenger Lower Arm Control

The **Mazda F151-34-300B** is the correct lower control arm for the **2004 2008 RX-8** on the **passenger side (front right)**. Here are the key advantages of purchasing this part:

1. **Direct Fitment** This is an **OEM (Original Equipment Manufacturer) replacement part**, meaning it is designed to match the exact specifications of the original component. It will align properly with the suspension, bushings, and mounting points without requiring modifications.

2. **Reliability** Mazda s suspension components are known for durability, especially in the RX-8 s independent front suspension setup. A genuine or high-quality aftermarket part will maintain the vehicle s handling characteristics and safety.

3. **Performance Impact** The lower control arm plays a crucial role in **wheel alignment, steering response, and ride comfort**. Replacing a worn or damaged arm prevents excessive play, which can lead to **vibration, uneven tire wear, or handling issues**.

4. **Prevents Further Damage** If the original arm is cracked, bent, or worn out, neglecting replacement can damage adjacent components, such as **ball joints, bushings, or the subframe**. Addressing the issue early avoids costly repairs down the line.

5. **Availability of Genuine vs. Aftermarket Options** While OEM parts may be pricier, they come with **warranties and exact tolerances**. Aftermarket alternatives (from reputable brands like **Dorman, Febi, or ACDelco**) can be more affordable while still providing reliable performance.

6. **Ease of Installation** The RX-8 s suspension is relatively straightforward to work on, especially for those with basic mechanical experience. The lower arm is accessible from underneath the vehicle, and most owners can replace it with **basic tools (socket set, jack, and jack stands)**.

7. **Compatibility with Upgrades** If you plan to modify the RX-8 s suspension (e.g., **lowering springs, sway bars, or coilovers**), a fresh lower arm ensures a clean installation and avoids compromising the integrity of the setup.

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1. **Cost** OEM parts can be **expensive**, especially if purchased directly from Mazda or authorized dealers. Aftermarket alternatives may be cheaper but could vary in quality. Prices typically range from **$100 $250 ** depending on the source.

2. **Bushing Wear** Even if the arm itself is intact, the **rubber or polyurethane bushings** (where the arm attaches to the frame and steering knuckle) may be worn. Replacing just the arm without addressing the bushings could lead to **recurring issues**. Some kits include new bushings, but this adds to the cost.

3. **Rust & Corrosion** Older RX-8s (especially those driven in **salted climates or off-road conditions**) may have **rusted or corroded arms**. Inspect the part thoroughly for **pitting, cracks, or weakened metal** before purchasing.

4. **Mismatched Parts Risks** If buying from a **third-party seller (e.g., eBay, Craigslist)**, there is a risk of receiving a **counterfeit or mismatched part**. Always verify the **part number, year compatibility, and seller reputation** to avoid receiving the wrong component.

5. **Labor Intensity** While not extremely difficult, replacing the lower arm requires **disconnecting the sway bar link, removing the ball joint (may need a press), and ensuring proper torque specs**. If you re not comfortable with suspension work, labor costs at a shop can add **$100 $200 ** to the total expense.

6. **Limited Aftermarket Support** Unlike more common vehicles, the RX-8 has a **smaller aftermarket**, meaning fewer specialized tools or guides may be available. Some owners report difficulty finding **specific tools (e.g., ball joint press, torque wrench with exact specs)**.

7. **Potential for Hidden Damage** If the arm was removed due to an **accident or severe wear**, there may be **hidden damage** (e.g., bent mounting holes, cracked welds). A **visual inspection or professional assessment** is recommended before buying.

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The **Mazda F151-34-300B lower control arm** is a **highly recommended replacement part** for the **2004 2008 RX-8 s passenger-side front lower arm**, provided it is **authentic, in good condition, and properly installed**. The benefits **direct fitment, reliability, and improved handling** far outweigh the drawbacks, which are mostly related to **cost, sourcing, and labor considerations**.

If you re **replacing a worn or damaged arm**, this part will **restore proper suspension geometry**, prevent further damage, and maintain the RX-8 s **sporty, precise handling**. However, **prioritize quality over price** avoid cheap knockoffs, and consider **replacing bushings simultaneously** if they appear worn.

- **Buy from a trusted source** (OEM dealer, reputable aftermarket supplier, or a verified used part seller).

- **Inspect the part for rust, cracks, or deformation** before purchasing.

- **Follow torque specifications** during installation to avoid loosening over time.

- **Consider professional installation** if you lack experience with suspension work.

**Purchase the Mazda F151-34-300B lower arm** if you need a **direct replacement for your RX-8 s passenger-side front lower arm**. Opt for an **OEM part or a high-quality aftermarket alternative** (e.g., **Dorman 8040864 or Febi 30000**) to ensure longevity. If the bushings are also worn, **replace them at the same time** to avoid future issues. While the cost may be higher than some alternatives, the **performance and safety benefits make it a worthwhile investment** for maintaining your RX-8 s handling and reliability.

Details:

2004 - 2008 Mazda RX-8 RX8 Front Right/Passenger Lower Arm Control F151-34-300B, E021, OEM, 2004, 2005, 2006, 2007, 2008, Fitment Information: 2004 - 2008, Part number: Placement on Vehicle: condition: Used item, refer to images for item condition. May have wear and tear, Color: Images: All images are of the actual item. God Bless You.

part #: f15134300b prices

• $74.95-$255.00

specifications suspensiosteeri:

• for makes: Mazda
• for years: 2004-2008
• mpn: F151-34-300b
• model: Rx-8
• part type: Control Arm
• part category: Control-arm-lower-fr
• storage location: 16h-s1-p2
• fitment type: Direct Replacement
• genuine oem: Yes
• part source: Genuine Oem
• name: Control-arm-lower-front
• ipn: F151 34 300b
• manufacturer warranty: 90 Day

payments suspensiosteeri:

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

offer suspensiosteeri:

• availability: In Stock
• best offers: True
• options: Ship-to-home
• sold: 0
• quantity: 1
• started: June 4, 2026

seller suspensiosteeri:

• rating: 99.7%
• # reviews: 29857
• city: Rancho Cordova, California

returns suspensiosteeri:

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

shipping suspensiosteeri:

• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• type: Fixed
• cost: $0.00
• carrier: FedEx
• transit: 2-6 Days

general suspensiosteeri:

• condition: Used
• Car Truck Parts Accessories > Steering Suspension > Control Arms, Ball Joints Assemblies

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