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Fuel Pump and Level Sensor Module with Seals - ACDelco (MU2123)

ACDelco - mu2123

ACDelcoMPNMU2123
Sale Price$295.60
Description : GM Genuine Parts Fuel Pump Module Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These module assemblies help deliver fuel to your vehicle's fuel injectors, providing a steady, reliable fuel supply to your vehicle's engine. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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Product Details

Description

GM Genuine Parts Fuel Pump Module Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These module assemblies help deliver fuel to your vehicle's fuel injectors, providing a steady, reliable fuel supply to your vehicle's engine. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Part Number (MPN)
MU2123
Brand
SKU
MU2123
UPC / GTIN
808709441236 / 00808709441236
Condition
New
Other Names
19332949
Brand
GM Genuine Parts
Connector Gender
Female
Connector Shape
Oval
Depth (in)
11.26
Depth (mm)
286
FAQ - Answer 1
Yes. Refer to a parts catalog for specific applications.
FAQ - Answer 2
Yes. GM Original Equipment fuel pumps have gone through the same rigorous testing and meet the specifications of the production pump your vehicle was built with.
FAQ - Answer 3
No. Noise, exhaust smoke, warning lights, hard starting, stalling, and hesitation can all be signs of a failing fuel pump. However, it is also possible that none of these signs could be present.
FAQ - Answer 4
Yes. Inspecting fuel pressure and/or examining engine data and codes with a scan tool can help determine potential concerns.
FAQ - Answer 5
Yes. It is good practice to refuel with high quality fuel from well known, high volume, trusted fuel stations whenever possible.
FAQ - Answer 6
Yes. Special tools may be required, e.g., a wire connector crimper, fuel pressure gauge, and lock ring removal tool.
FAQ - Question 1
Do I need to buy a specific version of this pump to fit my particular vehicle?
FAQ - Question 2
Are there benefits to replacing my fuel pump with a GM Original Equipment fuel pump?
FAQ - Question 3
Will my fuel pump always exhibit warning signs if it is failing?
FAQ - Question 4
Are there ways to test my fuel pump to see if it is performing efficiently?
FAQ - Question 5
Are there preventative measures I can take to help prevent/minimize fuel contamination that could damage my fuel pump?
FAQ - Question 6
Could special tools be required for fuel pump installation?
Features & Benefits - Bullet 1
Helps provide a reliable fuel supply to your vehicle's engine
Features & Benefits - Bullet 2
Electrical connections are designed to help eliminate high resistance due to vehicle vibration
Features & Benefits - Bullet 3
Designed to optimize pump life and reduce fuel pump noise
Features & Benefits - Bullet 4
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
Features & Benefits - Bullet 5
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
Features & Benefits - Bullet 6
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
Features & Benefits - Bullet 7
GM regularly updates production and service part designs to integrate new materials and technologies
Gasket Or Seal Included
Yes
Gasket Or Seal Material
PLASTHALL
Good Maintenance Practices - Section 1 - Bullet 1
Fuel contamination is one of the top reasons for fuel pump failure. For proper operation and longevity, it is critical to have a clean fuel system.
Good Maintenance Practices - Section 1 - Bullet 2
When servicing a fuel pump, always replace the strainer, and inspect the inline fuel filter for contamination (if equipped).
Good Maintenance Practices - Section 1 - Bullet 3
Before replacing a fuel pump, check for proper electrical connections, pressure, and volume.
Good Maintenance Practices - Section 1 - Bullet 4
Make a service appointment if your vehicle shows any of the following symptoms: 'Service Engine Soon' light is illuminated, improper engine idling, hesitation, or stalling, excessive exhaust smoke, abnormal engine noises, or noticeable fuel odors.
Good Maintenance Practices - Section 1 - Bullet 5
Refer to your Vehicle Owner's manual for additional vehicle maintenance practices.
Height
11.5
Inlet Outside Diameter
0.375<br />9.5
Inlet Quantity
1
Inlet Type
Quick Connect
Length
12.74<br />323.5
Lock Ring Included
No
Meets or Exceeds Original Equipment Manufacture Specifications
Yes
Mounting Hardware Included
No
Negative Ground
Yes
Outlet Outside Diameter
0.375<br />9.5
Outlet Quantity
1
Outlet Type
Quick Connect
Port 3 Outside Diameter (in)
0.62
Port 3 Outside Diameter (mm)
15.82
Port 4 Outside Diameter (in)
0.31
Port 4 Outside Diameter (mm)
7.9
Programming Required
No
Signs of Wear & Troubleshooting - Section 1 - Bullet 1
Excessive noise
Signs of Wear & Troubleshooting - Section 1 - Bullet 2
Fuel gauge reading incorrectly
Strainer Included
Yes
Tank Seal Outside Diameter (in)
5.33
Tank Seal Outside Diameter (mm)
135.5
Tank Seal Rim Shape
Round
Tank Seal Thickness (in)
0.24
Tank Seal Thickness (mm)
6
Terminal Gender
Male
Terminal Quantity
7
Terminal Type
Blade
Weight (lb)
5.62
Width
14.12
Wire Harness Included
No
Wire Quantity
0

YearMakeModelBody & TrimEngine & Transmission
Vehicle #1
Year
Make
Model
Body & Trim
Engine & Transmission

BrandEquivalent Part Numbers

Rows per page:

0-0 of 0

BrandEquivalent Part Numbers
ACDelco
M100037
Agility Fuel Solutions
4011331
Airtex
E3840M, E4039M
AutoZone
DFG1295
Carter
P76866M
DELPHI
FG1295
GM
19332949

Shipping Policy

  • In stock orders ship within 24 hours.
  • Weekend orders will be processed the next business day.
  • If a part is not in stock and must be ordered from the manufacturer, it usually takes 2-3 days to arrive to us and will be promptly shipped to you. Most of the orders are shipped complete within 2-3 business days. A few of the parts ordered from the manufacturer may take up to 5-6 business days to arrive and will shipped to you immediately.
  • Depending upon location, ground shipments usually take 2-7 days.
  • Your order may be shipped Overnight for an additional cost.
  • Oversized shipments will be additional; you will be contacted prior to shipping for approval.
  • We cannot guarantee transit times for ground and oversize orders.
  • Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost to the customer.
  • We do not ship internationally.
  • In the unlikely event that a part has been placed on backorder or discontinued, we will do our best to try and find one for you as quickly as possible.
  • We do not ship COD orders.

We use the following shipping parties:

  • UPS
  • USPS

Some products available are shipped directly from the manufacturer or supplier rather than from our own warehouse. This allows us to offer you a wider selection of parts at competitive prices. When an item shows "Drop Ship" the supplier currently has it in stock and it will typically ship within 1–2 business days

Check out our Shipping Policy for more details.

Return Policy

30-Day Return Policy – Upgrade Auto Parts

At Upgrade Auto Parts, we want you to be completely satisfied with your purchase. If for any reason you are not happy with your order, you can return it within 30 days of receiving your item for a refund or exchange, subject to the following conditions:

  1. Eligibility: Returns are accepted on parts that are unused, in original condition, and in the original packaging. Items that have been installed, used, or modified are not eligible for return.

  2. Shipping Costs: The customer is responsible for return shipping costs unless the return is a result of a Upgrade Auto Parts error (e.g., wrong part sent or defective item). We recommend using a trackable shipping service to ensure your return reaches us safely.

  3. Refunds & Exchanges: Once the return is received and inspected, we will issue a refund to your original payment method or process an exchange if preferred. Refunds typically take 5-7 business days to be processed.

If you have any questions or need assistance with your return, our customer service team is here to help!

Thank you for shopping with Upgrade Auto Parts!

Check out our Return Policy for more details.

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Welcome to Upgrade Auto Parts​, your trusted source for premium automotive components. We understand that finding the right parts for your vehicle can be a challenge, which is why we've made it our mission to simplify the process. From essential maintenance items to performance upgrades, our extensive catalog is built on a foundation of quality, reliability, and customer satisfaction. We're here to provide the expertise and the products you need to keep your vehicle running at its best. Drive smarter, choose Upgrade Auto Parts.​