MAZDA 8TR0407031 Automatic Transmission

( Manufacturer Part Number: 8TR0407031 ), ( Model: MAZDA-CX9 ), ( Listed: Uy41 ), ( Interchange: 400-11076 ), ( Year: 2020 ), ( Id: 2bc96905-efea-44b3-8207-9c3e653f115a ), ( Location: Lwca18a ), ( Type: Automatic Transmission ), ( Oe/oem Part Number: 8tr0407031 / 8tr0 40 7031, G0yl03000rv0 / G0yl03000r V0 / G0yl 03 000r V0 )

Review MAZDA Automatic Transmission Assembly Oem fits CX-9 AWD 2016–2021

The **Mazda 8TR0407031 (2016 2021) AWD CX-9** is a refined and versatile luxury crossover SUV that seamlessly blends bold styling, cutting-edge technology, and the legendary driving dynamics that Mazda has become known for. Engineered as part of Mazda s Skyactiv platform, this model features a **2.5-liter Skyactiv-G inline-four engine** paired with an **automatic transmission**, delivering a balanced blend of efficiency and performance. With **AWD (All-Wheel Drive)**, the CX-9 excels in both urban maneuverability and off-road capability, making it an ideal choice for drivers who demand adaptability without sacrificing comfort. The transmission, a smooth and responsive **6-speed automatic**, ensures seamless gear shifts, whether cruising on the highway or navigating tight city streets, while the AWD system enhances traction and stability in varying road conditions.

Inside, the CX-9 exudes a sense of premium sophistication with its **well-crafted interior**, featuring high-quality materials like soft-touch plastics, premium leather upholstery (available in various finishes), and ergonomic seating that prioritizes both comfort and support. The **infotainment system**, powered by Mazda s **i-Connectivity suite**, includes a **7-inch touchscreen display** (upgradable to a larger screen in higher trims) that integrates seamlessly with Apple CarPlay and Android Auto, allowing for effortless connectivity with smartphones. Advanced driver aids, such as **adaptive cruise control, lane-keeping assist, and blind-spot monitoring**, enhance safety and convenience, while the **available 12-speaker Bose audio system** delivers immersive sound quality for an elevated in-car experience.

The **8TR0407031 transmission code** specifically identifies this model s **automatic transmission variant**, ensuring compatibility with the AWD system and the Skyactiv engine for optimal performance. The CX-9 s **aerodynamic design** highlighted by its sleek LED headlights, distinctive grille, and aerodynamic body lines not only turns heads but also contributes to improved fuel efficiency and reduced wind noise at highway speeds. With a **spacious cabin** accommodating up to seven passengers (in the available third-row seating), the CX-9 offers practicality without compromising on style or performance.

Whether navigating city traffic, tackling light off-road terrain, or embarking on a long-distance road trip, the **2016 2021 Mazda CX-9 AWD** stands out as a well-rounded luxury SUV that merges Mazda s signature driving dynamics with modern convenience. Its **reliable powertrain, advanced safety features, and premium interior** make it a standout choice for discerning drivers who seek a blend of capability, comfort, and cutting-edge technology.

### **Pros and Cons of Buying a Mazda CX-9 (2016 2021, 8T0407031, AWD, Automatic Transmission)**

#### **Pros**

1. **Reliability and Durability** Mazda s Skyactiv engines and transmissions are known for longevity, especially the 2.5L and 3.5L Skyactiv-G engines paired with the 6-speed automatic. Many owners report minimal major issues if maintained properly.

2. **Smooth and Responsive Transmission** The 6-speed automatic (8T0407031) is generally well-regarded for its smooth shifts and durability, though some early models may experience minor software quirks that are often fixed with updates.

3. **Strong AWD System** The AWD system in the CX-9 is effective for snow and off-road conditions, providing better traction than FWD without the complexity of a full-time AWD setup.

4. **Comfortable and Spacious Interior** The CX-9 offers a roomy cabin with good seating for seven passengers (though rear legroom is limited). The ride is smooth, making it a good choice for families or those prioritizing comfort over sportiness.

5. **Good Safety Features** Later models (2018 ) come with advanced safety tech like blind-spot monitoring, rear cross-traffic alert, and adaptive cruise control. Even older models benefit from Mazda s strong crash-test ratings.

6. **Fuel Efficiency for Its Class** The 2.5L engine (especially in FWD models) achieves around **18 20 MPG city / 26 28 MPG highway**, which is decent for a midsize SUV. The 3.5L V6 improves power but reduces efficiency slightly ( 16 18 MPG city).

7. **Resale Value** Mazda holds its value relatively well compared to some competitors, meaning you won t lose as much money when trading it in later.

8. **Low Maintenance Costs** Mazda parts and labor are often cheaper than German or luxury brands, and the Skyactiv engines require less frequent oil changes (every 10,000 miles) than traditional engines.

9. **Available Tech and Comfort Options** Depending on the trim, you can find features like heated/ventilated seats, a premium sound system, and a user-friendly infotainment system (though some users report minor glitches with Apple CarPlay/Android Auto).

10. **Off-Road Capability (Higher Trims)** The **CX-9 Touring AWD** (2018 ) includes a **low-range gear** and **off-road mode**, making it a capable choice for light off-roading or rough terrain.

---

#### **Cons**

1. **Infotainment System Limitations** The touchscreen interface can be slow to respond, and Apple CarPlay/Android Auto (depending on the year) may have connectivity issues. Some users prefer wired connections over wireless.

2. **Rear Visibility Issues** The CX-9 has a relatively small rear window and blind spots, which can make parking and reversing more difficult, especially in tight spaces.

3. **Engine and Transmission Quirks**

- The **2.5L engine** (especially in early models) can develop **carbon buildup** in the intake valves, leading to rough idling or reduced power. A **carbon cleaning** procedure (around $200 $400) may be needed.

- Some **2016 2017 models** with the 6-speed automatic have reported **transmission hesitation or rough shifts**, though Mazda has addressed many of these issues with updates.

4. **Ride Quality Trade-Off** While the CX-9 is comfortable, it s not as sporty or responsive as competitors like the **Subaru Ascent** or **Toyota Highlander**. The suspension is soft, which may not appeal to those who prefer a firmer ride.

5. **Interior Quality Varies by Trim** Lower trims (like the **CX-9 Base or Sport**) use more plastic in the cabin, while higher trims (Touring, Signature) offer better materials. Some owners report squeaks or rattles over time.

6. **Fuel Economy Drop with AWD/V6** If you opt for the **3.5L V6 or AWD**, expect lower MPG ( 16 18 city / 22 24 highway), which can add to long-term fuel costs.

7. **Resale Depreciation** While Mazda holds value better than some brands, the CX-9 still depreciates significantly in its first few years, meaning you may not recoup much when selling.

8. **Limited Off-Road Performance (Non-Touring Models)** Without the **Touring AWD trim**, the CX-9 lacks low-range gear and off-road modes, making it less capable on rough terrain.

9. **Noise Levels at High Speeds** Some owners report increased wind and road noise at highway speeds, though this is common in larger SUVs.

10. **Recall History** Like most vehicles, the CX-9 has had recalls (e.g., **2016 2017 transmission issues, 2018 2021 brake system recalls**). Always check **NHTSA s recall database** before purchasing.

---

### **Conclusion and Recommendation**

The **2016 2021 Mazda CX-9 (8T0407031, AWD, Automatic)** is a **solid mid-size SUV** that excels in **reliability, comfort, and practicality**, making it a great choice for families or those who prioritize a smooth, spacious ride. However, it has **some notable drawbacks**, particularly with **infotainment lag, potential engine issues (carbon buildup), and limited off-road capability** unless you get the **Touring AWD trim**.

- Buyers who want a **reliable, comfortable, and fuel-efficient** SUV for daily driving.

- Those who prioritize **low maintenance costs** and **good resale value**.

- Families needing **seven seats** with decent cargo space.

- Drivers who don t require **high-performance handling** or **extreme off-road ability**.

- You need **advanced tech integration** (e.g., seamless CarPlay/Android Auto).

- You frequently drive **rough terrain** without the **Touring AWD trim**.

- You dislike **soft suspension** or **wind noise at highway speeds**.

- You want a **more sporty or premium-feeling** SUV (consider a **Subaru Ascent, Toyota Highlander, or Lexus RX** instead).

- **Best Year to Buy:** **2018 2021 models**, as they include **improved transmission software, better safety features, and optional off-road modes**.

- **Best Trim:** **Touring AWD** (if you want off-road capability) or **Signature** (if you prefer premium interior materials).

- Verify **no unresolved recalls** (check NHTSA).

- Inspect for **carbon buildup symptoms** (rough idling, loss of power).

- Test the **transmission for smooth shifts** (especially in 2016 2017 models).

- Check for **oil leaks** (common under the valve cover).

- Ensure **AWD components** (differential, transfer case) are in good condition if buying a used AWD.

If you find a **well-maintained 2018 CX-9 with a clean service history**, it s a **great value** in the midsize SUV segment. For older models (2016 2017), be prepared for **potential minor issues** and **budget for a carbon cleaning** if the 2.5L engine is showing signs of wear.

Details:

All listed parts have already been removed from donor vehicles and are on the shelf ready to be shipped. Are final sale. Items are sold in good, working condition and have been inspected prior to listing. This MUST be specified AT TIME OF PURCHASE.

Pulsate Template v6-3-24 Car info:ENGINE: 2.5L 4 CYL, AWD, EXTERIOR: JET BLACK MICA BLACK, PAINT CODE: 41W, INTERIOR: TRIM TC1. High quality pictures are provided for each item so you can see its exact condition. Locations without a dock or forklift will incur lift gate fee. 60-day return period begins on the day part is delivered.

2016 - 2021 MAZDA CX-9 AWD AUTOMATIC TRANSMISSION ASSEMBLY OEM 8TR0407031 Menu. Orders are shipped via USPS, UPS, or FedEx. Shipping charges are based on delivery zip code and apply to the lower 48 states.

part #: 8tr0407031 price

• $661.04

specifications autotransmissionsgo:

• for models: Cx-9, Awd
• for makes: Mazda
• for years: 2016-2021
• mpn: 8tr0407031
• model: Mazda-cx9
• listed: Uy41
• interchange: 400-11076
• year: 2020
• id: 2bc96905-efea-44b3-8207-9c3e653f115a
• location: Lwca18a
• type: Automatic Transmission
• oe/oem part number: 8tr0407031 / 8tr0 40 7031, G0yl03000rv0 / G0yl03000r V0 / G0yl 03 000r V0

shipping autotransmissionsgo:

• service: Flat Rate Freight
• type: Fixed
• cost: $270.00
• class: Freight

offer autotransmissionsgo:

• options: Ship-to-home
• best offers: True
• started: March 28, 2026
• sold: 0
• availability: In Stock
• quantity: 1

returns autotransmissionsgo:

• time: 60 Days
• policy: Returns Accepted
• paid by: Buyer

general autotransmissionsgo:

• condition: Used
• Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission

seller autotransmissionsgo:

• city: Nicholasville, Kentucky
• rating: 100.0%
• # reviews: 76267

payments autotransmissionsgo:

• wallet: Google-pay
• other
• credit card: Discover

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