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GMB 120-4040 Engine Water Pump
| Brand | GMB 120-4040 |
|---|---|
| Pulley Included | Yes |
| Mounting Hardware Included | No |
| Impeller Material | Plastic |
| Impeller Rotation | Standard |
| Includes Back Housing | Yes |
| Water Pump Drive Type | Serpentine belt |
| Casting Material | Aluminum |
| Gaskets Included | No |
| Hub Diameter (in) | 3.36 |
| Instructions Included | Yes |
| Pulley Type | Serpentine belt |
| Fits | Jeep · 6 vehicles |
OEM-spec quality. Manufactured to meet or exceed OEM specifications.
Complete pump assembly. Includes pulley and back housing for a cleaner install.
Aluminum housing. Lightweight construction with a plastic impeller.
Cross-references 5048283AB, 5048283AC and 5048283AD for the same application. See all 5.
Engine Water Pump for Jeep Wrangler
This GMB engine water pump is built for 2018-2023 Jeep Wrangler applications and is manufactured to meet or exceed OEM specifications. It features an aluminum casting, plastic impeller, and serpentine belt drive for direct-fit cooling system service.
Key Features
- Fits 2018-2023 Jeep Wrangler
- GMB Part Number: 120-4040
- Aluminum casting with plastic impeller
- Serpentine belt drive type with standard impeller rotation
- Includes back housing and pulley
- Instructions included for installation reference
- Cross-references Mopar 5048283AB and 5048283AC for the same application
Detailed Description
The GMB 120-4040 engine water pump is a direct replacement cooling component for Jeep Wrangler models from 2018 through 2023. Built with an aluminum housing and plastic impeller, it is engineered to match OEM-level fit and function while supporting reliable coolant circulation through the engine. The included pulley and back housing help simplify replacement of the original water pump assembly on serpentine belt-driven systems.
Use this water pump when servicing a Jeep Wrangler cooling system that requires a replacement for part number 120-4040. The design supports standard impeller rotation and is intended for vehicles originally equipped with this configuration. GMB 120-4040 is a practical choice for Jeep Wrangler owners looking for an OE-style water pump replacement that aligns with factory specifications.
What This Water Pump Helps Address
- Coolant circulation problems caused by a worn water pump
- Engine overheating related to reduced coolant flow
- Noise or bearing wear from a failing pump assembly
- Leaks from an aging cooling system component
- Service replacement for Jeep Wrangler cooling maintenance
Installation Notes and Tips
Confirm engine application and belt routing before installation. This pump uses a serpentine belt drive and includes instructions, but mounting hardware and gaskets are not included. Inspect the cooling system, belt condition, and mating surfaces during service, and replace any worn related components as needed.
Quality Assurance
Manufactured to meet or exceed OEM specifications for fit and function. GMB 120-4040 is built for dependable cooling system service on compatible Jeep Wrangler applications.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Notes |
|---|---|---|---|---|---|---|
| 2023 | Jeep | Wrangler | 2.0L | L4 | GAS | — |
| 2022 | Jeep | Wrangler | 2.0L | L4 | GAS | — |
| 2021 | Jeep | Wrangler | 2.0L | L4 | GAS | — |
| 2020 | Jeep | Wrangler | 2.0L | L4 | MILD HYBRID EV-GAS (MHEV) | — |
| 2019 | Jeep | Wrangler | 2.0L | L4 | GAS | — |
| 2018 | Jeep | Wrangler | 2.0L | L4 | MILD HYBRID EV-GAS (MHEV) | — |
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