ACURA M4JA-1406650 Automatic Transmission Gear Box 28150-RDS-0001 2.4L 28K

( Manufacturer Part Number: M4JA-1406650 ), ( Bundle Listing: No ), ( Type: Fwd ), ( Fitment Type: Direct Replacement ), ( Ipn: 28150-rds-0001 ), ( Oe/oem Part Number: 20021r4j030 / 20021-r4j-030 / 20021 R4j 030 )

Review ACURA 2.4l Speed Automatic Transmission Gear Box 28k Oem fits ILX FWD 2018–2022

The **Acura ILX (M4JA-1406650) 2018 2022 2.4L FWD Automatic Transmission Gearbox** is a precision-engineered powertrain component designed to deliver seamless performance, reliability, and efficiency in Acura s compact luxury sedan. Built to complement the ILX s refined yet sporty character, this **6-speed automatic transmission** integrates a **torque converter** and **hydraulic valve body** to ensure smooth gear shifts, whether cruising on the highway or navigating city streets. The **2.4L naturally aspirated inline-4 engine** paired with this transmission produces a balanced output of power and torque, making it ideal for both daily commuting and spirited driving. The gearbox features a **robust planetary gearset** and **precision-machined shafts**, optimized for durability while maintaining quiet operation, a hallmark of Acura s engineering philosophy. Its **automatic shift logic** adapts to driving conditions, providing optimal acceleration and fuel economy, while the **electronic control module (ECM)** ensures seamless integration with the vehicle s broader powertrain network. Whether in standard or sport modes, this transmission delivers a responsive yet refined driving experience, embodying Acura s commitment to blending luxury with performance. Built to meet stringent industry standards, it is designed for long-term reliability, making it a dependable choice for owners seeking a balance of sophistication and practicality in their daily driving companion.

### **Pros and Cons of Buying a 2018-2022 Acura ILX (M4JA-1406650, 2.4L FWD, Automatic Transmission)**

1. **Reliability and Build Quality** The Acura ILX is built on Honda s solid platform, known for durability. The 2.4L K-series engine is a well-proven, fuel-efficient powerplant with good longevity if maintained properly.

2. **Comfortable and Refined Ride** The ILX offers a smooth, quiet cabin with decent sound insulation, making it ideal for daily commuting and highway driving. The front-wheel-drive layout provides stability in most conditions.

3. **Good Fuel Economy** The 2.4L engine paired with an automatic transmission delivers respectable fuel efficiency, averaging around **28-32 MPG combined**, which is competitive for its class.

4. **Affordable Maintenance Costs** Compared to luxury brands, Acura parts and labor are reasonably priced. The engine and transmission are straightforward, reducing long-term repair expenses.

5. **Decent Tech for the Price** Later models (2020 ) include features like Apple CarPlay/Android Auto, a 7-inch touchscreen, and available wireless charging. The 2018-2019 models still offer a solid infotainment system for the time.

6. **Spacious and Practical Interior** The ILX provides a comfortable front cabin with decent rear legroom, making it suitable for passengers. The trunk offers **14.8 cu. ft.** of cargo space, which is adequate for small families or road trips.

7. **Low-Cost Ownership** With proper maintenance, the ILX is a budget-friendly alternative to German or Japanese luxury sedans, offering similar comfort without the premium price tag.

8. **Available Safety Features** Standard safety features include **Honda Sensing (2020 models)**, which includes adaptive cruise control, lane-keeping assist, and collision mitigation. Even older models have good standard safety ratings.

9. **Resale Value** Acura holds its value reasonably well, especially compared to some domestic brands, making it a smart long-term investment.

10. **Simple and Reliable Transmission** The automatic transmission in the ILX is smooth and dependable, with fewer reported issues compared to some competitors.

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1. **Underpowered Engine (2.4L)** While the 2.4L engine is efficient, it lacks the punch of turbocharged or V6 alternatives in its class. Acceleration can feel sluggish, especially when passing or merging on highways.

2. **Outdated Styling (Pre-2020 Models)** The 2018-2019 ILX has a dated, boxy design that doesn t appeal to those seeking a modern or sporty look. The 2020 facelift improved aesthetics slightly but still feels conservative.

3. **Limited Performance Options** Unlike some rivals (e.g., Mazda3 Turbo, Honda Civic Si), the ILX does not offer a sport-tuned variant, making it less exciting for enthusiasts.

4. **Interior Quality Varies** While the cabin is functional, some materials (plastic trim, softer plastics) feel less premium than competitors like the Mazda3 or Toyota Corolla. The steering wheel and gear shifter could be more refined.

5. **Noisy Cabin (Some Models)** Early 2018 models have been criticized for wind and road noise, though this improves in later years with slight refinements.

6. **Rear Seat Comfort** While adequate, the rear seats are not as supportive as in some luxury sedans, and the legroom is tight for taller passengers.

7. **Limited Aftermarket Support** Compared to Honda or Toyota, the ILX has fewer aftermarket parts and tuning options, which may be a drawback for enthusiasts.

8. **Potential Transmission Issues (Early Models)** Some 2018-2019 ILX owners report minor transmission hesitation or rough shifts, though these are not widespread and may be resolved with updates.

9. **No AWD Option** Unlike the Acura TLX or some rivals, the ILX is strictly front-wheel drive, limiting capability in snow or off-road conditions.

10. **Resale Depreciation** While better than some domestic brands, Acura s resale value is not as strong as Toyota or Lexus, meaning you may lose more money over time compared to more premium alternatives.

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The **2018-2022 Acura ILX (2.4L FWD, automatic)** is a **solid, reliable, and affordable** compact sedan that excels in **comfort, fuel efficiency, and low maintenance costs**. It is best suited for **daily drivers, commuters, and budget-conscious buyers** who prioritize **practicality and longevity** over performance or luxury.

However, it **lacks excitement**, has **dated styling**, and **underperforms** compared to turbocharged rivals. If you **don t need sporty handling, premium materials, or advanced tech**, the ILX is a **smart choice**. But if you want **more power, a sportier feel, or a more modern interior**, you may prefer alternatives like the **Mazda3 Turbo, Honda Civic Si, or Toyota Corolla**.

---

- You want a **reliable, fuel-efficient, low-maintenance** sedan for daily use.

- You prioritize **comfort and practicality** over performance.

- You find the **price point attractive** compared to luxury or turbocharged alternatives.

- You plan to **keep it for 5 years** with proper maintenance.

- You want **a sportier, more engaging drive**.

- You need **better resale value** than Acura typically offers.

- You dislike **dated styling** or prefer a more premium interior.

- You frequently drive in **harsh winter conditions** (no AWD option).

**Final Verdict:** The **Acura ILX is a great value for those who want a no-frills, dependable sedan** but may not be the best choice for enthusiasts or those seeking a more upscale experience. **Test drive a few models** to ensure the ride quality and interior meet your expectations before purchasing.

Details:

MILEAGE: 28K MILES. BODY TYPE: SEDAN 4-DOOR. COLOR: EXTERIOR LUNAR SILVER METALLIC NH-830M. TRANSMISSION: 8-SPEED DUAL CLUTCH AUTOMATIC M4JA.

part #: m4ja1406650 prices

• $79.20-$144.99

specifications autotransmissionsgo:

• for models: Ilx, Fwd
• for makes: Acura
• for years: 2018-2022
• mpn: M4ja-1406650
• bundle listing: No
• type: Fwd
• fitment type: Direct Replacement
• ipn: 28150-rds-0001
• oe/oem part number: 20021r4j030 / 20021-r4j-030 / 20021 R4j 030

general autotransmissionsgo:

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

seller autotransmissionsgo:

• city: Kingsley, Michigan
• # reviews: 43146
• rating: 99.9%

shipping autotransmissionsgo:

• type: Fixed
• transit: 3-10 Days
• cost: $350.00
• service: Economy
• class: Economy

returns autotransmissionsgo:

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

offer autotransmissionsgo:

• started: February 10, 2026
• quantity: 1
• best offers: True
• options: Ship-to-home
• availability: In Stock
• sold: 0

payments autotransmissionsgo:

• credit card: Mastercard
• other
• wallet: Apple-pay

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