GMC TRUCK SIERRA150 Automatic Transmission 400-01343 4.3L 1KBD

( Brand: Gmc Truck ), ( Manufacturer Part Number: SIERRA150 ), ( Part Type: Transmission ), ( Conditions Options: Nck, 4.3, At, Kbd, 4x4, On ), ( Genuine Oem: Yes ), ( Ipn: 400-01343 )

Review GMC TRUCK Automatic Transmission 4.3l Id Pickup fits SIERRA 1500 4WD 2011

The GMC 400-01343 automatic transmission is a high-performance unit specifically designed for the 4.3L 4WD Sierra 1500. This transmission is a key component of your vehicle's powertrain, responsible for smoothly and efficiently transferring the engine's power to the wheels.

The 400-01343 transmission is a 4-speed automatic unit, offering a balance between fuel efficiency and power delivery. It features advanced hydraulic control systems, allowing for quick and precise shifts, ensuring a smooth driving experience. The transmission is equipped with a robust torque converter, designed to handle the power output of the 4.3L engine, providing reliable and consistent performance.

The 4WD capability of this transmission is a significant advantage, allowing your Sierra 1500 to tackle various road conditions with ease. It features a sophisticated 4-wheel drive system that automatically distributes power to the wheels as needed, enhancing traction and stability.

The 400-01343 transmission is also equipped with a 1-kilobyte electronic control unit (ECU). This advanced technology allows for precise control over various transmission functions, improving fuel efficiency, reducing emissions, and enhancing overall performance.

In summary, the GMC 400-01343 automatic transmission is a robust, reliable, and high-performing component for your 4.3L 4WD Sierra 1500. Its advanced features, including hydraulic control systems, robust torque converter, 4-wheel drive capability, and 1-kilobyte ECU, ensure a smooth and efficient driving experience, regardless of the road conditions.

1. Reliability: The 4.3L V6 engine is known for its durability and longevity, making it a reliable choice for daily driving.

2. Power: With a 4-speed automatic transmission, the vehicle provides adequate power for towing and off-road adventures.

3. Capacity: The 4WD system allows for better traction on various terrains and the ability to carry heavy loads, making it suitable for work and recreational use.

4. Affordability: Compared to newer models, the price point of this Sierra 1500 is more affordable, making it a cost-effective choice for many buyers.

1. Fuel efficiency: The older 4-speed automatic transmission may not be as fuel-efficient as newer, more advanced transmissions.

2. Limited features: The 1KBD model may not have as many modern features as newer models, such as infotainment systems, advanced safety features, and comfort features.

3. Limited interior space: Compared to newer models, the interior may not offer as much space for passengers and cargo.

4. Maintenance costs: Older vehicles may require more frequent maintenance and repairs, which can add up over time.

The GMC 400-01343 automatic transmission 4.3L 4WD 1KBD Sierra 1500 is a reliable and capable option for those looking for a cost-effective truck with good power and off-road capabilities. However, it may not offer the same fuel efficiency, features, or interior space as newer models. Prospective buyers should consider their driving needs, budget, and preferences before making a decision.

If you prioritize reliability, power, and off-road capabilities and have a limited budget, the GMC 400-01343 automatic transmission 4.3L 4WD 1KBD Sierra 1500 may be a good fit for you. However, if you value fuel efficiency, modern features, and interior space, you may want to consider newer models that offer these benefits. It's always a good idea to test drive the vehicle and have it inspected by a trusted mechanic before making a purchase decision.

Details:

Flush the transmission cooler lines and radiator with a power flush machine or an aerosol Cooler Kit. Replace front seal. Remove all cap-plugs from lines and orifices. Change over sensors as needed.

Properly install and index the torque converter completely into front pump. SIERRA 1500 PICKUP 11 AT; 4.3L, 4x4, ID 1KBD. Verify the differential portion of transmission is full fluid. Fill the transmission with OEM recommended fluids.

Transfer cases are not included with transmission from AWD vehicles. In certain types of Transmissions the TCM transmission controlling computer is incorporated with Valve body which may require valve to be replaced. Clear all transmission computer codes in the vehicle prior to starting or operating. Remove torque converter strap.

Replace the radiator or cooler if recommended by manufacturer. Warranty does NOT cover labor, diagnostic, towing or rental car costs. Warranty does NOT cover labor, diagnostics, towing, rental car, or any other expense related to an item being defective/damaged. We employ over 135 people.

Inspect and replace rear seal as needed. Most 4WD 2WD vehicles must re-learn the shift logic to transmission after installation. This transmission may need reprogrammed at your local dealer. This will ensure the cooling system is flowing.

SILVERADO 1500 PICKUP 11 AT; 4.3L, 4x4, ID 1KBD.

part #: sierra150 prices

• $575.00-$1335.60

specifications autotransmissionsgo:

• for models: 1500, 4wd, Sierra
• for makes: Gmc
• for years: 2011
• brand: Gmc Truck
• mpn: Sierra150
• part type: Transmission
• conditions options: Nck, 4.3, At, Kbd, 4x4, On
• genuine oem: Yes
• ipn: 400-01343

seller autotransmissionsgo:

• # reviews: 8372
• rating: 98.6%
• city: Feasterville-Trevose, Pennsylvania

offer autotransmissionsgo:

• quantity: 1
• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: February 20, 2025

returns autotransmissionsgo:

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

general autotransmissionsgo:

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

payments autotransmissionsgo:

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• wallet: Google-pay
• other

shipping autotransmissionsgo:

• carrier: UPS
• service: UPS Ground
• class: Standard
• transit: 4-9 Days
• cost: $175.00
• type: Fixed

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