fits model: Blazer, Jimmy. year: 1988–1990.

( Manufacturer Part Number: 400-01904B ), ( Model: SUBCHEV20 ), ( Part Type: Transmission ), ( Conditions Options: Call For Better Price ), ( Genuine Oem: Yes ), ( Designation: Used ), ( Stock : 181196 )
The 400-01904B Automatic Transmission is a high-quality replacement part specifically designed for 1987 to 1992 models of Chevrolet Blazer and Jimmy, as well as submodels such as the 218987 and Subchev20. This transmission is a crucial component of your vehicle's powertrain, responsible for smoothly transferring engine power to the wheels.
The 400-01904B is a rebuilt transmission, meaning it has been disassembled, inspected, cleaned, and rebuilt with new or refurbished parts. This ensures that the transmission operates at its optimal performance level, providing smooth shifts and reliable operation. The transmission features a durable torque converter, precision-machined gears, and high-quality seals to prevent leaks and maintain proper lubrication.
The transmission is easy to install, with clear instructions and diagrams included in the packaging. The transmission is also backed by a warranty, providing peace of mind to the customer that the part will perform as expected. The 400-01904B Automatic Transmission is a reliable and cost-effective solution for replacing a faulty or worn-out transmission in your 1987 to 1992 Blazer or Jimmy.
Pros of buying a 400-01904B automatic transmission for 1987-1992 Blazer/Jimmy, Suburban (218987), and S10:1. Widely available and readily available in the aftermarket, making it easy to find and purchase.
2. Compatible with various models, making it a versatile option for vehicle owners.
3. Relatively affordable compared to buying a new transmission or having a custom one built.
4. Well-known and proven reliable, having been used in many GM vehicles over the years.
Cons of buying a 400-01904B automatic transmission:1. While it's widely available, finding a rebuilt or remanufactured unit that meets your specific needs and requirements may be challenging.
2. The transmission may require additional repairs or modifications to work efficiently in your vehicle, depending on its condition.
3. Some older units may have worn-out components that could lead to transmission failure if not addressed before installation.
Conclusion:The 400-01904B automatic transmission is a reliable and affordable option for 1987-1992 Blazer/Jimmy, Suburban (218987), and S10 owners. However, it's crucial to thoroughly inspect the unit and ensure it meets your vehicle's specific needs before purchasing. If you're unsure, consider consulting a professional mechanic or transmission specialist for advice.
Recommendation:If you decide to purchase a used 400-01904B automatic transmission, consider buying it from a reputable and reliable source. Ensure that the unit has been thoroughly inspected, rebuilt, or remanufactured, and comes with a warranty. Additionally, invest in professional installation to ensure the transmission is properly installed and aligned, reducing the risk of transmission failure in the future.
Pre-installation requirements: drain and replace engine oils to manufacture suggested levels. Replace valve cover gaskets.
If needed replace timing gears, chains or belts gaskets. Engines are guaranteed against knocking and excessive smoking. Pre-installation requirements: replace all seals.
Adjust throttle position sensor cable.
Flush and inspect cooling lines.
Flush cooling system and re-fill. Fill trans with manufacture specified fluid.
Replace oil pan gasket and rear main seal. Clear all transmission computer codes prior to starting or operating vehicle.
Align and engage torque converter into front pump. Install new filter kit.
Install new spark plugs wires. Replace thermostat gasket.
Install new belts and hoses.
Replace oil, air and fuel filters.