BUICK 400.GM4N12 Automatic Transmission Mhh 2JJW

( Model: REGAL ), ( Conditions Options: Id Verified, Low Miles ), ( Genuine Oem: Yes ), ( Ipn: 400.gm4n12 ), ( Descriptionpartcondition: 37, 803 Miles, Tested ), ( Manufacturer Warranty: No Warranty ), ( Transmission Speeds: 6 Speed ), ( Type: Automatic Transmission ), ( Partout Id: A-85330297 )

Review BUICK Automatic Transmission Speed Opt Mhh Part Number fits REGAL 400 2012

The Buick Regal 2012 with the GM 4L60-E 4-speed automatic transmission, option code MHH and part number 2jjw, is an exquisite combination of power, efficiency, and sophistication. This transmission is a key component of the Regal's impressive driving experience, delivering smooth shifts and responsive performance.

The GM 4L60-E is a robust and reliable automatic transmission, known for its durability and versatility. It's designed to handle the power and torque of the Buick Regal's engine, providing seamless power delivery to the wheels. The transmission features a planetary gear set with a torque converter, which uses hydraulic pressure to control the shifting process. It also includes a lock-up clutch that engages the transmission's input and output shafts when cruising at constant speeds, reducing power loss and improving fuel efficiency.

The Regal's MHH option package includes several enhancements that optimize the performance and functionality of the 4L60-E transmission. These may include features such as a tow/haul mode, which adjusts the transmission's shift points for better acceleration and towing capacity. The package may also include a transmission cooler, which helps maintain the transmission's operating temperature, ensuring optimal performance and longevity.

The 2012 Buick Regal with the GM 4L60-E automatic transmission, option code MHH, and part number 2jjw, is an excellent choice for those seeking a refined driving experience with the assurance of reliable and efficient power transmission. This transmission delivers the perfect blend of performance and fuel efficiency, making it a standout feature of the Buick Regal.

The Buick Regal 2012 with a Buick 400 GM 4L65-E automatic transmission (option code MHH, engine code 2jjw) is a mid-size luxury car manufactured by General Motors. Here are some potential pros and cons of purchasing this vehicle:

1. Smooth Ride: The Buick Regal is known for its comfortable and smooth ride, making it a popular choice for those looking for a luxurious driving experience.

2. Powerful Engine: The 3.6-liter V6 engine (2jjw) provides ample power and acceleration, making it a good choice for those who enjoy a responsive driving experience.

3. Fuel Efficiency: The automatic transmission (MHH) helps improve fuel efficiency, making it a cost-effective option for daily commuting.

4. Advanced Technology: The Regal comes with several advanced features, including an infotainment system, Bluetooth connectivity, and a rearview camera, among others.

5. Safety Features: The Regal comes with several standard safety features, including airbags, stability control, and traction control, making it a safe choice for families or those who prioritize safety.

1. Maintenance Costs: The Buick Regal, like many luxury vehicles, can be expensive to maintain. The transmission and engine may require regular servicing and repairs, which can add up over time.

2. Size: The Regal is a mid-size car, which may not be suitable for those who need more space or require a larger vehicle for their family or cargo.

3. Fuel Consumption: While the automatic transmission helps improve fuel efficiency, the powerful engine still consumes a significant amount of gas, which may not be ideal for those looking for a fuel-efficient vehicle.

4. Depreciation: As with many luxury vehicles, the Buick Regal can depreciate quickly, making it a less attractive option for those who plan to keep the car for an extended period.

The Buick Regal 2012 with a Buick 400 GM 4L65-E automatic transmission (MHH, 2jjw) is a luxurious mid-size car that offers a comfortable ride, powerful engine, advanced technology, and several safety features. However, it may come with higher maintenance costs, larger fuel consumption, and quick depreciation. Ultimately, the decision to purchase this vehicle depends on your personal preferences, driving needs, and budget.

If you are looking for a comfortable and powerful mid-size luxury car with advanced technology and safety features, the Buick Regal 2012 with a Buick 400 GM 4L65-E automatic transmission (MHH, 2jjw) may be a good option for you. However, be prepared for higher maintenance costs, larger fuel consumption, and quick depreciation. Consider test-driving the vehicle before making a purchase to ensure it meets your driving needs and preferences. Additionally, consider exploring financing options, such as leasing or financing, to help manage the upfront costs.

Details:

Replace thermostat gasket. Replace oil pan gasket and rear main seal. Adjust throttle position sensor cable. Pre-Installation Requirements: Replace all seals.

Install new belts and hoses. A commercial address is NOT required. Flush cooling system and re-fill. Pre-Installation Requirements: Drain and replace engine oils to manufacture suggested levels.

Clear all transmission computer codes prior to starting or operating the vehicle. Install new spark plugs wires. MALIBU 13 AT; 6 Speed, opt MHH, ID 3JOW. Replace oil, air, and fuel filters.

Fill trans with manufacture specified fluid. LACROSSE 12 AT; 2.4L opt MHH, ID 2JJW. Flush and inspect cooling lines. Replace valve cover gaskets.

REGAL 12 AT; 6 Speed, opt MHH, ID 2JJW. If needed replace timing gears, chains, or belts gaskets. Install new filter kit. MALIBU 13 AT; 6 Speed, opt MHH, ID 2JJW.

Engines are guaranteed against knocking and excessive smoking. And engage torque converter into the front pump.

part #: 400.gm4n12 prices

• $460.00-$487.60

specifications complmanu:

• for models: 400, Regal
• for makes: Buick
• for years: 2012
• model: Regal
• conditions options: Id Verified, Low Miles
• genuine oem: Yes
• ipn: 400.gm4n12
• descriptionpartcondition: 37, 803 Miles, Tested
• manufacturer warranty: No Warranty
• transmission speeds: 6 Speed
• type: Automatic Transmission
• partout id: A-85330297

seller complmanu:

• rating: 99.6%
• # reviews: 2677
• city: Joliet, Illinois

general complmanu:

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

shipping complmanu:

• class: Freight
• type: Fixed
• cost: $0.00
• service: Flat Rate Freight
• transit: 12-17 Days

returns complmanu:

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

offer complmanu:

• sold: 0
• options: Ship-to-home
• started: August 3, 2025
• quantity: 1
• best offers: True
• availability: In Stock

payments complmanu:

• other
• credit card: Mastercard
• wallet: Paypal

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