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About Hummer

Hummer is a truck, and SUV brand introduced in 1992, discontinued in 2010, and relaunched as a sub-brand of GMC in 2021. In the late 1980s, AM General developed a civilian version of the Hummer that resembled military vehicles in design and mechanical components. It was equipped with a sleek automatic transmission. In 1992, AM General began selling a civilian version of the Humvee M998 under the Hummer brand. The original 6.2L V8 diesel engine was produced in 1993. However, it was designed to easily replace the V8 petrol engine and used the same mounts and transmission components as all GM truck engines. The overall weight of the engine is slightly higher than that of the 7.4L petrol engine.

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Some diesel engines were installed in two-door trucks before official production began in 1981. They were then supplied to the US government and distributed to various federal agencies and military units. They were used as test vehicles in long-term reliability and fuel economy tests. A 6.5L version was introduced in 1992. It replaced the 6.2L version. Most 6.5L engines are equipped with a turbocharger. The simple design ensures reliable operation, low fuel consumption, and meets truck emission requirements. The 4L80-E is a series of automatic transmissions manufactured by General Motors. This series is designed for longitudinal engine configurations and has four speeds. It is a four-speed version of the electronically controlled three-speed Turbo-Hydramatic 400 transmission introduced in October 1963. The 4L80 and 4L85 transmissions are manufactured at the Willow Run Transmission plant in Ypsilanti, Michigan. The 4L80-E is designed for a maximum gross weight of 18,000 pounds. The 4L80-E uses two clutch solenoids, originally called A and B, but later changed to 1-2 and 2-3 to comply with OBD II regulations. When the PCM activates and deactivates the solenoids in a predetermined way, four different gear ratios can be achieved.

The Allison 1000 transmission was originally a 5-speed transmission. In 2005, a new version of the 1000 was introduced with a sixth gear in the top gear, making it a two-speed. A manual transmission was introduced in 2006. This feature gives the driver better control over the transmission and improves performance in situations where engine braking or shifting is required. Lower pressure improves the contact between the tire and the ground, making it easier to drive on softer surfaces. In addition, there is less damage to the tire surface. This is important on construction sites and in agricultural areas. Since the driver can directly control the air pressure in each tire, handling is greatly improved. Softer tires also absorb road surface shocks and damage such as scratches better. Lower tire pressures also reduce friction on rough terrain and significantly reduce dust and dirt.

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Another function of CTIS is to maintain tire pressure in the event of slow leakage or punctures. In this case, the system automatically adjusts the tire pressure to the pressure selected by the driver. The bumper of a Hummer SUV should be as strong as the Hummer itself. As technology advances in vehicles' design, so do the parts needed to maintain them. That's why we work hard to make sure our parts and accessories are at the top of their engineering game. We help ensure the safety of your vehicle by providing OEM parts. We are committed to giving you a better driving experience. Our OEM Hummer parts and accessories are manufactured to original equipment specifications for fit, form, and function. It has enjoyed a reputation for its quality and reliability. It has produced high-performance vehicles throughout its history. Today, it continues to build on that reputation and is supported by many brand loyalists. Click the pictures to view more. You may want to maintain, repair, or equip your vehicle with OEM repair parts. You can be sure to get the right product at an affordable price.