MAZDA F151-28-550B Rear Left Driver Control Arm Set RX-8 Left/driver F031

( Manufacturer Part Number: F151-28-550B ), ( Model: RX-8 ), ( Part Type: Control Driver Arm ), ( Part Category: Control-arm-rear-set ), ( Fitment Type: Direct Replacement ), ( Genuine Oem: Yes ), ( Part Source: Genuine Oem ), ( Name: Control-arm-rear ), ( Ipn: F151 28 550b ), ( Manufacturer Warranty: 90 Day )

Review MAZDA Rx8 Rear Left/driver Control Arm Set fits 2004–2008

The **Mazda F031 Rear Left/Driver Control Arm Set (Part Number: 28-550B)** for the **2004 2008 RX-8** is a meticulously engineered suspension component designed to ensure precise handling, durability, and optimal ride quality for this iconic rotary-engine sports coupe. Crafted from high-strength steel, this control arm set is engineered to withstand the demands of daily driving, spirited cornering, and varying road conditions, making it an essential upgrade or replacement for owners seeking to restore factory performance or enhance their vehicle s suspension geometry. The F031 control arm set features a robust, heat-treated design with strategically placed bushings that minimize wear and flex, allowing for smoother articulation and reduced noise, vibration, and harshness (NVH) during aggressive maneuvers or over rough terrain. Compatible exclusively with the **RX-8 s rear-wheel-drive layout**, this set includes both the **driver-side (left) control arm** and its corresponding mounting hardware, ensuring a seamless fit with the vehicle s suspension linkages, subframe, and steering geometry. Whether replacing worn-out original components or upgrading to a more robust aftermarket alternative, this control arm set maintains the RX-8 s signature balance of sporty responsiveness and comfort, making it a critical part for enthusiasts aiming to preserve or refine their car s legendary driving dynamics. Built to Mazda s exacting standards, this part is a direct fit for the **F031 chassis**, ensuring compatibility with the RX-8 s unique rear-wheel-drive suspension system while delivering the reliability expected from Mazda s precision engineering.

### **Pros and Cons of Buying a Mazda F031 Rear Left/Driver Control Arm Set (2004-2008 RX-8)**

1. **Direct Fitment** This part is specifically designed for the **2004-2008 Mazda RX-8 (F031 platform)**, ensuring compatibility without modifications. It will fit the **driver-side rear control arm** without issues.

2. **Improved Durability** If the original control arm is worn, cracked, or rusted, replacing it with a new or high-quality aftermarket part can prevent further damage to the suspension, steering, or wheel alignment.

3. **Better Handling & Safety** A failing control arm can lead to **poor alignment, uneven tire wear, and handling issues**. Replacing it restores proper suspension function, improving stability and safety.

4. **Prevents Costly Damage** A broken control arm can damage the **ball joint, bushings, or even the subframe**. Replacing it early avoids more expensive repairs down the line.

5. **Warranty & Quality Options** Some aftermarket brands offer **warranties (e.g., 1-2 years)** and use **high-strength materials** (e.g., forged steel, reinforced bushings) for better longevity than OEM parts.

6. **Easier Installation** Since this is a **direct replacement**, installation is straightforward for someone with basic mechanical skills. No major modifications are needed.

7. **Available at Competitive Prices** Compared to OEM parts, aftermarket options are often **cheaper** while maintaining reliability.

---

1. **Potential Counterfeit Parts** Some aftermarket suppliers sell **low-quality or fake parts**, which may fail prematurely. Buying from a **reputable brand (e.g., Dorman, Eibach, or a trusted online retailer)** helps mitigate this risk.

2. **Mismatched Materials** Cheaper aftermarket parts may use **softer bushings or weaker steel**, leading to **sooner wear** compared to OEM or high-end aftermarket options.

3. **Installation Challenges** If the **ball joint or bushings are seized**, removing the old arm can be difficult. Some owners may need to **heat the arm or use penetrating oil** to avoid stripping bolts.

4. **Alignment Required After Replacement** Replacing a control arm **always requires a wheel alignment** to ensure proper tire contact and even wear.

5. **Limited OEM Availability** If you prefer **OEM parts**, they may be **harder to find** and more expensive than aftermarket alternatives.

6. **Possible Rust Issues** If the RX-8 was driven in **salted or wet conditions**, the old arm may have **rusted beyond repair**, requiring extra cleaning before installation.

7. **Labor Costs (If Not DIY)** If you take it to a shop, **labor costs** (typically **$100-$200 per hour**) can add up, especially if additional repairs (e.g., bushings, ball joint) are needed.

---

Buying a **replacement rear left/driver control arm set for a 2004-2008 RX-8 (F031)** is a **wise investment** if the original part is failing. The **pros outweigh the cons** when purchasing from a **trusted brand**, as it prevents **suspension damage, improves handling, and avoids costly repairs later**.

However, **buying cheap or counterfeit parts** could lead to **early failure**, so **prioritize quality**. If you re comfortable with basic mechanics, **DIY installation** is feasible and cost-effective. If not, **professional labor** ensures proper fitting but increases expenses.

- **Choose a reputable brand** (e.g., **Dorman, Eibach, or a well-reviewed aftermarket supplier**).

- **Inspect the old arm** for rust, cracks, or seized bushings before purchasing.

- **Replace bushings if worn** this is a common failure point.

- **Get a wheel alignment after installation** to maintain proper tire wear.

- **Consider OEM if budget allows** for maximum longevity, but aftermarket is a **cost-effective alternative** if sourced correctly.

**Final Verdict:** **Proceed with purchase** from a trusted seller, and **replace the part promptly** if the original is damaged. This is a **preventative maintenance move** that pays off in the long run.

Details:

2004 - 2008 Mazda RX-8 RX8 Rear Left/Driver Control Arm Set 4 F151-28-550B, F031, OEM, 2004, 2005, 2006, 2007, 2008, Fitment Information: RX-8, Part number: Placement on Vehicle: condition: Used item, refer to images for item condition, BOOTS WILL NEED TO BE REPLACED, Color: Images: All are of the actual. God Bless You.

part #: f15128550b prices

• $74.95-$359.99

specifications suspensiosteeri:

• for makes: Mazda
• for years: 2004-2008
• mpn: F151-28-550b
• model: Rx-8
• part type: Control Driver Arm
• part category: Control-arm-rear-set
• fitment type: Direct Replacement
• genuine oem: Yes
• part source: Genuine Oem
• name: Control-arm-rear
• ipn: F151 28 550b
• manufacturer warranty: 90 Day

returns suspensiosteeri:

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

seller suspensiosteeri:

• rating: 99.7%
• city: Rancho Cordova, California
• # reviews: 29985

payments suspensiosteeri:

• other
• credit card: Diners-club
• wallet: Paypal

offer suspensiosteeri:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• started: June 11, 2026
• best offers: True
• sold: 0

shipping suspensiosteeri:

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

general suspensiosteeri:

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

Mazda F151-28-550B Is Similar To:

• 450-1052 Raybestos Courier Mazda Steering Idler Arm Front (25.4% similar) You can search the part number to verify it will. Here is a brand new in the original plastic steering idler arm for many years of mazda and ford courier trucks...(October 22nd, 2018)
• G017 Spax Mazda Coupe Nos Adjustable Rear Sport Shocks (26% similar) Sax have been a world leader in quality adjustable sports shocks for many years. Never been used or installed. Only a few left, then they are gone. A small fraction of the original price. The favourite adjustable sports shock absorbs. Shipping at cost. From a recently cleared inventory. Fully ...(January 2nd, 2019)
• 70-72 80-1174 Koni Mazda R100 Coupe Nos Adjustable Rear Sport Shocks (27.6% similar) The best sports shock absorbs period. A small fraction of the original price. From a recently cleared inventory this listing is for one pair of two 2 shock absorbs. Never been used or installed. Shipping at cost...(February 23rd, 2016)
• Whiteline Whlbmk013 16-18 Fits Mazda Mx-5 Miata Sport grand Touring club Front And Rear Sw (19.2% similar) By reducing body roll, lateral loads are spread more evenly across the tires thereby increasing cornering grip and improving outright performance. In fact, benefits extend to improvements in handling, safety and tire wear without affecting ride quality or comfort.this part fits: year make model sub ...(August 2nd, 2023)
• Super Pro Spf2675k Superpro For 1993 Mazda Rx-7 Base Lower Rear Inner Toe Control Arm Bushing Kit (36.8% similar) Kit contents. Super pro is an innovative Australian manufacturer of automotive polyurethane suspension bushings, control arms, sway bars and other components for both 4X4 performance vehicles. Innovations that are tested in the most extreme conditions; from Antarctica to Sahara. Manufacturer: super ...(November 24th, 2023)
• Energy 0534-c6 1990-1997 Mazda Miata Suspension Bushing Set Na 90-97 Missing Pieces (22.5% similar) Up for sale is a used 1990 -1997 mazda Marta energy suspension bushing set na 90-97 missing pieces. Phoenix, az 85007. All brand new but some pieces are dirty from being removed and in dirt the diff bushings/ of rear control arm metal sleeves missing. This part was removed off a 1993 mazda Marta ...(January 4th, 2024)
• Mazda 477-59281 Crossmember k-frame Rear Fits 03-08 6 (32.3% similar) Cross member/k-frame rear fits 03-08 mazda 6/1 55251 this is in overall good condition. All mounting brackets are in good condition and usable. No expedited shipping options are available at this time. The cross member will come complete without accessories. This part attaches to the suspension of ...(January 22nd, 2024)
• Ford Truck 477-59099 Crossmember k-frame Rear Thru 8 04 4wd Fits 01-05 Mazda Tribute (23.6% similar) The cross member will come complete without accessories. No expedited shipping options are available at this time. All mounting brackets are in good condition and usable. This part attaches to the suspension of vehicle. Cross member/k-frame rear thru 8/04 4WD fits 01-05 mazda tribute 163496 this is ...(January 25th, 2024)
• Mazda 477-58939 Crossmember k-frame Rear Excluding Mazdaspeed Fits 99-03 Protege (30.6% similar) Cross member/k-frame rear excluding moistest fits 99-03 mazda protege 162427 this is in overall good condition. All mounting brackets are in good condition and usable. The cross member will come complete without accessories. No expedited shipping options are available at this time. This part ...(January 26th, 2024)
• Mazda 477-59601 Crossmember k-frame Rear Fits 04-06 3 (30.8% similar) This part attaches to the suspension of vehicle. All mounting brackets are in good condition and usable. The cross member will come complete without accessories. No expedited shipping options are available at this time. Cross member/k-frame rear fits 04-06 mazda 3/1 71133 this is in overall good ...(January 29th, 2024)
• Mazda Na01288c0c Crossmember k-frame Rear Fits 90 Mx-5 Miata (29.2% similar) Help message. All mounting brackets are in good condition and usable. Cross member/k-frame rear fits 90 mazda MX-5 Marta 130877 this is in overall good condition. This part attaches to the suspension of vehicle. No expedited shipping options are available at this time. The cross member will come ...(April 26th, 2024)