ACURA M4JA-1409747 Automatic Transmission Gear Box 2.4L 78K

( Manufacturer Part Number: M4JA-1409747 ), ( Oe/oem Part Number: 4lr4jaa000 ), ( Bundle Listing: No ), ( Type: Fwd ), ( Fitment Type: Direct Replacement )

Review ACURA 2.4l Speed Automatic Transmission Gear Box 78k Oem fits ILX FWD 2018–2022

The **Acura ILX (M4JA-1409747) 2018 2022 2.4L FWD with Automatic Transmission** represents a refined blend of Japanese engineering precision and American-inspired luxury, delivering a compelling blend of sophistication, practicality, and driving engagement. Built on Honda s globally acclaimed **J35 platform**, this compact executive sedan (now discontinued in the U.S. but still a sought-after model in other markets) embodies Acura s commitment to delivering a premium in-car experience without the bulk or complexity of larger luxury vehicles. The **2.4-liter naturally aspirated inline-four engine** (designated **M4JA**), a refined evolution of Honda s proven **i-VTEC** architecture, produces a smooth and linear **180 horsepower and 161 lb-ft of torque**, making it a versatile powerplant for both city commuting and highway cruising. Its **continuous variable valve timing (i-VTEC)** system ensures optimal efficiency across the rev range, while the **dual overhead camshaft (DOHC) 16-valve cylinder head** delivers crisp throttle response and a well-balanced power delivery curve, devoid of the abruptness often found in smaller engines. Paired with a **6-speed automatic transmission** (with a **Multi-Mode Shift (MMS)** system that allows for manual-like engagement via paddle shifters), the ILX offers a driving experience that balances convenience with engagement, catering to both casual drivers and those who appreciate a more interactive connection to the road.

The **front-wheel-drive layout** of the ILX is underpinned by a **MacPherson strut suspension** paired with **multi-link rear coils**, a setup that prioritizes ride comfort and handling balance without sacrificing stability. The **adaptive dampers** (available in certain trims) further enhance the chassis by dynamically adjusting to road conditions, smoothing out imperfections while maintaining a composed demeanor during cornering. For those seeking an upgrade, the **optional **Acura Sport Tuning Package** introduces stiffer suspension components and a sport-tuned exhaust, sharpening the ILX s responsiveness and adding a subtle growl to the exhaust note. Inside, the cabin is a study in **premium materials and thoughtful ergonomics**, with **soft-touch plastics, genuine leather upholstery (on higher trims), and ambient lighting** that set a sophisticated tone. The **10.2-inch touchscreen infotainment system** (with **AcuraLink connectivity**) integrates seamlessly with Apple CarPlay and Android Auto, while the **8-inch digital gauge cluster** provides clear, customizable instrumentation. Heated and ventilated front seats, a **power-adjustable driver s seat**, and **dual-zone automatic climate control** ensure that occupants remain comfortable in any climate, while the **Bose premium audio system** (on select trims) delivers immersive sound quality that rivals systems found in much larger vehicles.

Beyond its practicality and driving dynamics, the **2018 2022 ILX** stands out for its **Acura-specific refinements** that elevate it above its Honda Civic or Accord counterparts. Features like the **AcuraWatch 360 camera system** (on higher trims), **adaptive cruise control with low-speed follow**, and **lane-keep assist** demonstrate Acura s focus on **safety and driver assistance**, while the **available **AcuraWatch Parking Assist** simplifies tight parking maneuvers with its **360-degree surround-view camera**. The **AcuraWatch Navigation** system, integrated with real-time traffic updates, ensures that drivers can navigate efficiently, even in unfamiliar areas. Though the ILX lacks the sportiness of Acura s **TLX or MDX**, its **2.4L engine** and **automatic transmission** combination strike a perfect balance for those seeking a **luxurious, fuel-efficient, and low-maintenance** daily driver. With its **sleek, aerodynamic styling** (featuring **Acura s signature "A-pillar grille"** and **LED daytime running lights**), the ILX exudes a sense of understated elegance that makes it a standout in the compact executive segment. Whether navigating city streets, merging onto highways, or simply enjoying a quiet commute, the **2018 2022 Acura ILX 2.4L FWD with automatic transmission** delivers a harmonious fusion of **Japanese reliability, American-inspired luxury, and Acura s signature attention to detail** making it a compelling choice for discerning drivers who value both performance and refinement.

### **Pros and Cons of Buying a 2018 2022 Acura ILX 2.4L FWD (M4JA-1409747) with Automatic Transmission**

#### **Pros**

1. **Reliability and Build Quality**

The Acura ILX is known for its solid construction, using many components from Honda s reliable platform. The 2.4L K-series engine (when properly maintained) is durable, especially in the ILX s FWD configuration, which avoids the more complex CVT issues seen in some AWD models. The automatic transmission (a conventional 6-speed automatic, not a CVT) is generally smoother and less prone to failure compared to earlier CVT models.

2. **Comfortable and Refined Ride**

The ILX is designed for a quiet, smooth driving experience, with good sound insulation and a well-tuned suspension that absorbs road imperfections well. It s a practical choice for daily commuting and highway driving.

3. **Affordable Maintenance Costs**

Compared to luxury brands, the ILX s maintenance is relatively inexpensive. Routine services (oil changes, brake jobs, etc.) are cheaper than those for competitors like the Toyota Camry or Honda Accord. The 2.4L engine is also simpler than turbocharged or hybrid powertrains, reducing long-term repair risks.

4. **Spacious and Practical Interior**

The ILX offers a roomy cabin with decent rear legroom and cargo space (48.7 cu. ft. behind the rear seats). The layout is functional, with a straightforward infotainment system (though it can feel dated compared to newer models).

5. **Good Resale Value**

Acura maintains strong resale value, especially for well-maintained examples. The ILX holds its value better than many domestic sedans, making it a sensible long-term investment if kept in good condition.

6. **Safety Features**

The ILX comes standard with Acura s safety suite, including dual front airbags, stability control, traction control, and anti-lock brakes. Later models (2020 ) include standard rearview camera and available blind-spot monitoring, which adds to its appeal.

7. **Low-Tech Simplicity**

The ILX avoids the complexity of modern tech-heavy vehicles. The infotainment system is straightforward (Apple CarPlay/Android Auto added in 2020), and there are no unnecessary frills that could lead to frustration or costly repairs.

8. **Fuel Efficiency**

- **City:** 22 24 MPG

- **Highway:** 32 35 MPG

This is competitive with similar sedans, though not as efficient as hybrids or turbocharged models.

---

#### **Cons**

1. **Outdated Infotainment (Pre-2020 Models)**

The 2018 2019 ILX features a clunky, slow touchscreen system with limited connectivity. While 2020 models added Apple CarPlay/Android Auto, earlier versions lack modern features like wireless charging or a larger display. This can be frustrating for tech-savvy buyers.

2. **Weak Engine Power**

The 2.4L naturally aspirated engine produces only **180 182 horsepower**, which feels underpowered for a midsize sedan, especially when towing or accelerating from a stop. The automatic transmission is smooth but doesn t compensate for the lack of torque.

3. **No Available AWD (Limited Off-Road Capability)**

The FWD-only configuration means poor traction in snow, slush, or wet conditions. While Honda s AWD (available in some ILX trims) is more capable, the FWD version is less versatile in adverse weather.

4. **Interior Materials Feel Budget-Conscious**

While functional, the plastics and stitching in the cabin are more utilitarian than premium. The steering wheel and seats lack the refined feel of higher-end Acuras or luxury brands.

5. **CVT Transmission Issues (If Misidentified)**

*Note: The M4JA-1409747 VIN corresponds to the 6-speed automatic transmission, not a CVT. However, if you encounter a different VIN with a CVT, those models have had a history of reliability concerns (e.g., overheating, premature failure). Always verify the transmission type before purchasing.*

6. **Limited Performance and Handling**

The ILX is not a sporty car. The suspension is tuned for comfort over sportiness, and the steering feels light. There s no turbocharged option or rear-wheel-drive variant, which limits its appeal to enthusiasts.

7. **Resale Depreciation (Compared to Competitors)**

While the ILX holds value better than many domestic sedans, it doesn t depreciate as slowly as some luxury or hybrid models. If you plan to upgrade soon, the ILX may not retain its value as well as a Toyota Camry Hybrid or Honda Accord.

8. **Noisy Cabin at High Speeds**

Some drivers report increased road and wind noise at highway speeds, though this varies by model year and build quality.

9. **Limited Customization Options**

The ILX has fewer trim levels and customization choices compared to rivals like the Camry or Accord. The base and upper trims offer similar features with minor differences.

10. **Potential Electrical Gremlins**

Like many modern vehicles, the ILX can develop minor electrical issues (e.g., sensor faults, infotainment glitches). While rarely severe, these can be annoying and may require diagnostic work.

---

### **Ending Conclusion**

The **2018 2022 Acura ILX 2.4L FWD with a 6-speed automatic transmission** is a **practical, reliable, and affordable** choice for buyers who prioritize **comfort, simplicity, and low maintenance costs** over performance or luxury. It excels as a **daily driver for commuting, highway use, and urban environments**, especially if you avoid harsh winter conditions (due to FWD limitations).

- **Strong acceleration or sporty handling** (the engine is weak, and the suspension is soft).

- **Modern infotainment or tech features** (pre-2020 models feel outdated).

- **Off-road or all-weather capability** (AWD is not available in this configuration).

- **Long-term luxury or prestige** (the interior and build quality are functional but not premium).

If you find a **well-maintained example with a clean service history**, the ILX is a **solid buy** especially at its current market price. But if you can stretch your budget slightly, a **Toyota Camry Hybrid, Honda Accord, or even a used Lexus ES** might offer better long-term value or features.

---

### **Recommendation**

You need a **reliable, low-maintenance sedan** for daily use.

You prioritize **comfort and fuel efficiency** over performance.

You **avoid severe weather** (or can supplement with winter tires).

You prefer **simplicity over cutting-edge tech**.

You find a **clean, low-mileage example** with **full service records**.

You want **strong acceleration or sporty driving**.

You **live in an area with harsh winters** (consider AWD or a different model).

You **need advanced infotainment or connectivity**.

You re looking for **long-term luxury or prestige**.

You can afford a **slightly more expensive alternative** (e.g., Camry Hybrid, Accord, or a used luxury sedan).

The ILX is a **smart, no-frills choice** for practical buyers who want **Honda/Acura reliability without the complexity of modern tech or high costs**. If it fits your needs, it s a **solid purchase** just ensure the transmission is the **6-speed automatic (not CVT)** and the vehicle has been **properly maintained**.

Details:

TRANSMISSION: 8-SPEED AUTOMATIC DUAL-CLUTCH DCT. BODY TYPE: SEDAN 4-DOOR. COLOR: EXTERIOR MODERN STEEL METALLIC NH797M. MILEAGE: 78K MILES.

part #: m4ja1409747 price

• $1184.99

specifications autotransmissionsgo:

• for models: Ilx, Fwd
• for makes: Acura
• for years: 2018-2022
• mpn: M4ja-1409747
• oe/oem part number: 4lr4jaa000
• bundle listing: No
• type: Fwd
• fitment type: Direct Replacement

offer autotransmissionsgo:

• sold: 0
• started: March 3, 2026
• quantity: 1
• best offers: True
• availability: In Stock
• options: Ship-to-home

seller autotransmissionsgo:

• city: Kingsley, Michigan
• # reviews: 47332
• rating: 99.9%

payments autotransmissionsgo:

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

shipping autotransmissionsgo:

• class: Economy
• transit: 3-9 Days
• type: Fixed
• service: Economy
• cost: $350.00

returns autotransmissionsgo:

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

general autotransmissionsgo:

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

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