GM GENUINE PARTS 40009046 Injection Pump

( Brand: Gm Genuine Parts ), ( Part Type: Pump ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Make: Chevrolet ), ( Year: 2016 2017 2018 2019 2020 2021 2022 ), ( Replaces Part Number: 55493585, 55496866, 55593582 ), ( Manufacturer Part Number: 40009046 )

Review GM GENUINE PARTS Injection Pump fits 2016–2022

The GM 40009046 Injection Pump is a crucial component in the fuel delivery system of certain GM vehicles. This pump, specifically designed for diesel engines, is responsible for accurately metering and delivering fuel to the engine's combustion chamber at the right time and pressure.

The GM 40009046 Injection Pump is an advanced piece of engineering, featuring a robust and durable design. Its exterior casing is made of high-strength material, ensuring it can withstand the rigors of continuous operation under high pressure. The internal components are precision-machined to tight tolerances, ensuring consistent fuel delivery and optimal engine performance.

The pump operates using a camshaft and a series of injector plungers. Each plunger is actuated by the camshaft at the appropriate engine RPM, opening a valve and delivering a precise amount of fuel into the engine's combustion chamber. The pump is capable of delivering fuel at pressures up to 29,000 psi, ensuring efficient and complete combustion of the fuel.

The GM 40009046 Injection Pump also features advanced diagnostic capabilities. It is equipped with an electronic control module that monitors various parameters such as fuel pressure, injection timing, and injector performance. This information can be used by the vehicle's onboard diagnostics system to detect and diagnose any issues with the fuel delivery system.

The pump is designed to be easily serviced, with accessible components and clear maintenance instructions. However, it is recommended that the pump be serviced by a qualified professional to ensure that all components are properly installed and functioning correctly.

Overall, the GM 40009046 Injection Pump is a critical component in the fuel delivery system of eligible GM diesel vehicles. Its advanced design, durability, and diagnostic capabilities make it an essential part of maintaining optimal engine performance and ensuring efficient fuel consumption.

The GM 40009046 injection pump is a crucial component in diesel engines, responsible for delivering fuel to the engine at the right pressure and in the right quantity. Replacing a faulty injection pump can significantly improve the performance and fuel efficiency of a diesel vehicle. Here are some pros and cons of buying this particular injection pump.

1. OEM Quality: This injection pump is an Original Equipment Manufacturer (OEM) part, which means it is manufactured by the same company that originally built the part for the vehicle. This ensures a perfect fit and compatibility with the engine.

2. Improved Performance: A faulty injection pump can cause poor fuel injection, leading to rough idling, hesitation, and even engine damage. Replacing it with a new one can restore the engine's performance to its original specifications.

3. Longer Engine Life: By addressing the issue of a faulty injection pump, you can prevent further engine damage and extend the life of your diesel engine.

4. Better Fuel Efficiency: A properly functioning injection pump ensures that fuel is injected efficiently into the engine, which can lead to better fuel economy.

1. Cost: Replacing an injection pump can be an expensive repair, and the price of the GM 40009046 injection pump itself can be quite high.

2. Labor Costs: The installation of the new injection pump requires specialized tools and knowledge, which can add to the overall cost of the repair.

3. Availability: Depending on the specific make and model of the vehicle, the GM 40009046 injection pump may be difficult to find in local auto parts stores, requiring an order from a distributor or the dealership.

4. Time Consuming: The replacement of an injection pump can take several hours, depending on the complexity of the engine and the experience of the mechanic.

The GM 40009046 injection pump is an essential component for the proper functioning of a diesel engine. While the cost and time involved in replacing it can be significant, the benefits of improved performance, longer engine life, and better fuel efficiency can make it a worthwhile investment. If you are experiencing issues with your diesel engine's performance or fuel economy, it may be time to consider replacing the injection pump.

If you are in the market for a new injection pump, it is recommended to purchase it from a reputable auto parts supplier or dealership to ensure its authenticity and compatibility with your vehicle. Additionally, it is advisable to have the installation performed by a certified mechanic to ensure proper installation and function. This will help ensure that the repair is done correctly and that the benefits of the new injection pump are fully realized.

Details:

Gaskets are almost always sold individually. Express, savanna. The most common mistakes involve Quantity issues. Do your research before you make a purchase.

Parts must be resalable and in the original packaging. Electrical parts are not returnable. Almost all GM parts are sold as individual items.

High pressure pump. Defective parts will only be eligible for warranty exchange. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

part #: 40009046 prices

• $210.84-$350.99

specifications pumpunite:

• for years: 2016-2022
• brand: Gm Genuine Parts
• part type: Pump
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• make: Chevrolet
• year: 2016 2017 2018 2019 2020 2021 2022
• replaces part number: 55493585, 55496866, 55593582
• manufacturer part number: 40009046

offer pumpunite:

• availability: In Stock
• quantity: 1
• started: June 21, 2025
• sold: 0
• options: Ship-to-home

general pumpunite:

• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Pumps Sending Units
• condition: New

returns pumpunite:

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

shipping pumpunite:

• type: Fixed
• transit: 5-10 Days
• cost: $24.83
• service: Standard
• class: Standard

payments pumpunite:

• wallet: Paypal
• other
• credit card: Visa

seller pumpunite:

• city: Spencerport, New York
• rating: 98.4%
• # reviews: 908

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