ACURA 20021R8EA00 Automatic Transmission

( Manufacturer Part Number: 20021R8EA00 ), ( Manufacturer Warranty: 90 Day ), ( Genuine Oem: Yes ), ( Seller Notes: 3.7l, Low Miles, Ran Well, 1-year, 3-year, Warranties, Available ), ( Interchange Item Code: 400 ), ( Color: Black ), ( Compatibility: Rl 11-12 At; ), ( Type: Automatic Transmission Assembly )

Review ACURA 2002 1r8ea00 Used Automatic Transmission Assembly At Grade fits RL 2012

The **Acura 20021R8EA00 Automatic Transmission (2012 RL)** is a high-performance, precision-engineered transmission designed to deliver seamless shifting, superior durability, and optimal performance in Acura s luxury 3.5L V6-powered models, including the 2012 RL sedan. This **Type-R 8-speed automatic transmission** (often referred to as the **Type-R 8AT**) represents a significant advancement in automotive drivetrain technology, featuring a sophisticated **electronic control module (ECM)** that ensures smooth, responsive gear changes under both light acceleration and high-stress conditions. Built with **high-strength steel gears, precision-machined shafts, and advanced friction materials**, this transmission is engineered to handle the torque demands of the RL s 3.5L V6 engine (producing up to **280 horsepower and 262 lb-ft of torque**), providing effortless power delivery while maintaining reliability over the long term.

One of the standout features of this transmission is its **8-speed configuration**, which allows for a wider range of gear ratios compared to traditional 5- or 6-speed automatics. This design enhances fuel efficiency, reduces engine strain during cruising, and ensures quicker acceleration when needed. The transmission incorporates a **torque converter with a lock-up clutch**, which engages at higher speeds to improve efficiency while maintaining smooth operation. Additionally, the **hydraulic valve body** is finely tuned to optimize shift quality, minimizing jerkiness and ensuring a near-instantaneous response to driver inputs. For added durability, the **planetary gear sets** are precision-balanced, and the **clutch packs** are treated with advanced friction coatings to withstand the rigors of daily driving, towing, and spirited acceleration.

Under the hood, the **20021R8EA00** integrates seamlessly with Acura s **Vectronics** system, which monitors engine and transmission health in real time. This connectivity allows for **adaptive shift programming**, where the transmission learns driver preferences over time, adjusting shift points for a more tailored driving experience. The unit also features **built-in diagnostics** that can alert the driver to potential issues before they escalate, contributing to the RL s reputation for long-term reliability. Mechanically, the transmission is supported by a **robust oil pump** that ensures consistent lubrication, while the **cooling system** prevents overheating, even during extended highway driving or stop-and-go traffic. The **sealed housing** is designed to minimize leaks, and the **shift solenoids** are precision-calibrated for optimal hydraulic pressure management.

For enthusiasts and mechanics alike, the **20021R8EA00** is a robust and well-supported transmission, with a strong aftermarket presence for replacement parts, rebuild kits, and diagnostic tools. Whether installed in a stock RL or modified for performance tuning, this transmission is built to handle the demands of modern luxury driving while offering the refinement and responsiveness expected from Acura s flagship models. Its combination of **advanced engineering, durability, and adaptability** makes it a reliable choice for those seeking a smooth, high-performance automatic transmission in their 2012 Acura RL.

Buying a used **2012 Acura RL with the 20021R8EA00 automatic transmission** (a 3.5L V6 with a 6-speed automatic) can be a solid choice for those seeking a reliable, luxury-oriented SUV, but it comes with both advantages and drawbacks. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros of Buying This Vehicle**

1. **Strong Engine and Transmission**

The 3.5L V6 (20021R8EA00) is a well-regarded engine known for its smooth operation, good power output (270 hp, 252 lb-ft torque), and durability. The 6-speed automatic transmission is generally reliable when properly maintained, offering smooth shifts and adequate performance for highway and city driving.

2. **Luxury and Comfort**

The RL is Acura s flagship SUV, offering a refined cabin with high-quality materials, quiet ride, and premium features such as leather upholstery, power-adjustable seats, a premium sound system, and available options like a navigation system and heated/ventilated seats. The spacious interior and comfortable ride make it ideal for long trips.

3. **Safety Features**

The 2012 RL comes equipped with standard safety features such as stability control, traction control, anti-lock brakes (ABS), and side curtain airbags. Some trims may also include advanced options like a rearview camera or blind-spot monitoring, depending on the package.

4. **Resale Value and Brand Reputation**

Acura has historically held its value well, and the RL is a respected model in the luxury SUV segment. The brand is known for reliability and customer service, which can be reassuring when purchasing a used vehicle.

5. **Fuel Efficiency**

While not a hybrid, the 3.5L V6 offers decent fuel economy for its class, averaging around 18 20 MPG in the city and 26 28 MPG on the highway. This is competitive for a large SUV of its time.

6. **Reliability of the Platform**

The RL is based on the Honda Ridgeline platform (shared with the Honda Pilot), which is known for its robust construction and durability. The body-on-frame design provides a sturdy foundation, and the drivetrain components are generally well-built.

7. **Aftermarket Support**

Acura has a strong aftermarket presence, with availability of parts, tuning options, and performance upgrades. This can be beneficial if you plan to modify the vehicle or address minor wear over time.

8. **Spacious Cargo and Towing**

The RL offers a large cargo area (up to 88.6 cubic feet with seats folded) and can tow up to 5,000 lbs with the proper towing package, making it versatile for both daily driving and occasional hauling.

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### **Cons of Buying This Vehicle**

1. **Age and Mileage Concerns**

A 2012 model is now over a decade old, meaning it has likely accumulated significant mileage. Without thorough maintenance records, there could be hidden issues such as worn suspension components, timing chain wear (common in V6 engines), or transmission wear. Always inspect the service history.

2. **Transmission Reliability Risks**

While the 6-speed automatic is generally reliable, older transmissions can develop issues like delayed shifts, rough engagement, or internal wear. The 20021R8EA00 engine is known to have a timing chain that can stretch over time, leading to ticking noises or potential failure if not serviced. Regular chain tensioner and guide replacement is critical.

3. **Electrical Gremlins**

Older luxury vehicles, including the RL, can suffer from electrical system issues such as faulty sensors, wiring problems, or malfunctioning infotainment systems. The navigation system, if equipped, may also become outdated or stop working entirely.

4. **Maintenance Costs**

As the vehicle ages, maintenance and repair costs can add up. Items like brakes, tires, suspension components, and fluids (e.g., transmission fluid, coolant) will need regular attention. While not excessively expensive, these costs can be a burden over time.

5. **Fuel Economy Limitations**

While decent for its class, the RL s fuel economy is not as efficient as modern hybrids or smaller SUVs. Gas prices can significantly impact ownership costs, especially if you drive frequently.

6. **Depreciation**

The RL has depreciated significantly over the years, and buying a used model means you re paying a fraction of its original price. However, this also means you may not get the latest safety or tech features found in newer luxury SUVs.

7. **Resale Value Decline**

Even used, the RL s resale value may not hold as well as newer models. If you plan to sell it in the future, you may not recover as much as you invested.

8. **Potential Rust Issues**

Depending on the vehicle s history and climate, rust can be a concern, particularly in areas like the wheel wells, undercarriage, and frame. A thorough inspection is essential to rule this out.

9. **Limited Modern Tech**

The RL lacks modern features such as Apple CarPlay, Android Auto, advanced driver-assistance systems (e.g., adaptive cruise control, lane-keeping), or high-resolution infotainment screens. If these are priorities, you may find newer models more appealing.

10. **Recall and Unaddressed Issues**

Always check if the vehicle has any outstanding recalls or unresolved issues. Some older Acuras may have had recalls for minor electrical or transmission concerns that were never fixed.

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### **Conclusion**

The **2012 Acura RL with the 20021R8EA00 automatic transmission** is a capable and comfortable luxury SUV that offers a good balance of power, comfort, and reliability for its age. It is well-suited for buyers who prioritize a smooth ride, spacious interior, and a reputable brand. However, potential buyers must be prepared for the challenges of owning an older vehicle, including higher maintenance costs, potential transmission or timing chain issues, and the absence of modern tech features.

If you find a well-maintained example with a clean service history, this RL could be a great long-term investment. Conversely, if you re looking for a vehicle with the latest safety and convenience features, a newer model may be more appealing despite higher upfront costs.

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### **Recommendation**

1. **Inspect Thoroughly**: Before purchasing, have a trusted mechanic perform a pre-purchase inspection. Pay special attention to the transmission, timing chain, suspension, and electrical systems.

2. **Check Maintenance Records**: Ensure the vehicle has been regularly serviced, particularly for oil changes, transmission fluid refreshes, and timing chain inspections.

3. **Test Drive**: Listen for unusual noises (e.g., ticking from the timing chain, grinding from the transmission) and check for smooth shifting and responsive braking.

4. **Negotiate Price**: Given the age of the vehicle, aim to purchase it at a reasonable price, factoring in potential repairs or upgrades.

5. **Consider Alternatives**: If you re open to newer models, a used **2015 2017 Acura RDX or MDX** might offer better tech and safety features while still being affordable.

6. **Budget for Repairs**: Set aside funds for potential maintenance or upgrades, such as replacing the timing chain or upgrading the infotainment system.

**Final Verdict**: If you re comfortable with the trade-offs of owning an older luxury SUV and can find a well-cared-for example, the **2012 Acura RL with the 20021R8EA00 transmission** is a solid choice. However, if you want a vehicle with modern conveniences and lower long-term risks, consider a newer used model. Always prioritize thorough inspection and due diligence to ensure a wise purchase.

Details:

Original parts mean a perfect fit. This part fits vehicles made in the following years 2011, 2012. Unless specified as Universal this is a direct fit Automatic Transmission Assembly. All parts are covered by warranty.

Parts go back into cars rather than landfill. Every part is cleaned, tested and inspected by experts.

part #: 20021r8ea00 prices

• $646.60-$1118.75

specifications autotransmissionsgo:

• for models: Rl
• for makes: Acura
• for years: 2012
• mpn: 20021r8ea00
• manufacturer warranty: 90 Day
• genuine oem: Yes
• seller notes: 3.7l, Low Miles, Ran Well, 1-year, 3-year, Warranties, Available
• interchange item code: 400
• color: Black
• compatibility: Rl 11-12 At;
• type: Automatic Transmission Assembly

returns autotransmissionsgo:

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

offer autotransmissionsgo:

• availability: In Stock
• quantity: 1
• started: April 22, 2026
• options: Ship-to-home
• sold: 0

general autotransmissionsgo:

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

payments autotransmissionsgo:

• wallet: Paypal
• credit card: Visa
• other

seller autotransmissionsgo:

• city: Rockville, Minnesota
• # reviews: 11776
• rating: 99.5%

shipping autotransmissionsgo:

• service: Flat Rate Freight
• cost: $475.00
• class: Freight
• type: Fixed

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