System Type
Haldex AWD 4th Generation
Condition
New Fully Functional
Manufacturer
Aftermarket
Component
Pre-Charge Pump
Package Includes
Pump + 2 Screws
Warranty
12 Months
Tested & Ready for Installation
This new Haldex pump is a replacement for OEM references 22765779 and 13280095, designed to restore the hydraulic pressure needed for rear-wheel-drive engagement in Gen 4 Haldex AWD systems.
OEM Part Numbers
Main OEM Numbers:
22765779 • 13280095
Related Reference Numbers:
0404029 • 2004444
Always Verify Your Part Number
Before placing an order, check the OEM number printed directly on your existing Haldex pump and confirm it matches one of the listed references. If you are unsure about compatibility, contact us with your VIN number and we will help verify fitment.
Technical Specifications
System Type:
Haldex AWD 4th Generation
Component:
Pre-Charge Pump / AWD Coupling Oil Pump
Application:
Saab, Opel, Buick and Cadillac AWD vehicles with 4th Gen Haldex / LSD system
Manufacturer:
Aftermarket replacement
OEM Number:
22765779 / 13280095
Reference Number:
0404029 / 2004444
Included:
1x pump + 2x screws
Recommended Oil:
93165387 / 2000884
Warranty Period:
12 Months
Product Description
This new aftermarket Haldex pump with OEM references 22765779 / 13280095 is designed for 4th generation Haldex AWD systems used across selected Saab, Opel, Buick and Cadillac vehicles. The pump creates the hydraulic pressure required to activate the AWD coupling and engage rear-wheel drive when traction is needed.
What This Pump Does
- Builds hydraulic pressure for Haldex clutch engagement
- Restores rear-wheel drive activation in AWD conditions
- Supports correct operation of the AWD coupling and LSD system
- Helps eliminate traction loss caused by a weak, blocked, or failed pump
Service Recommendation
When replacing a Gen 4 Haldex pump, we strongly recommend replacing the hydraulic oil 93165387 / 2000884 and filter kit 20986573 / 20946129 at the same time. A clogged filter can overload a new pump and shorten its service life.
Vehicle Compatibility
The 22765779 / 13280095 pump is suitable for selected Saab, Opel, Buick and Cadillac vehicles equipped with 4th generation Haldex AWD. Always verify the exact OEM part number before ordering.
Suitable for the Following Vehicle Models
- Opel Insignia A (2008 - 2017)
- Saab 9-3 (2007 - 2011)
- Saab 9-4X (2011)
- Saab 9-5 II NG (2010 - 2012)
- Buick Regal (2008 - 2017)
- Buick LaCrosse 2 (2009 - 2016)
- Buick Allure 2 (2009 - 2016)
- Cadillac XTS (2013 - 2019)
- Cadillac SRX (2009 - 2016)
Not Sure About Compatibility?
If you are unsure whether this pump fits your vehicle, send us your VIN number or the OEM number from your existing pump. We will help confirm compatibility before you order.
Common Fault Codes & Symptoms
A faulty Gen 4 Haldex pump can cause AWD engagement problems, pump electrical faults and traction issues. Common pump-related symptoms and diagnostic signs include:
-
00448 Haldex clutch pump lower limit exceeded / intermittent
-
00448 Haldex clutch pump open circuit
-
ESP warning Warning lamp may be illuminated together with AWD fault
-
Traction loss Rear wheels do not engage correctly
-
Drivetrain fault AWD coupling pressure not built correctly
- Jumping or skipping wheel sensation during tight turns
- Binding sensation when doing tight turns
- Reduced stability in slippery conditions
Diagnostic Tip
A healthy Gen 4 Haldex pump typically measures around 5 to 8 ohms. If the pump is out of range, intermittently dead, or only runs after tapping, it is usually defective and should be replaced together with the filter service.
Installation & Service Notes
Recommended Steps
- Verify the exact OEM number on the original Haldex pump
- Replace the hydraulic pump according to the correct repair procedure
- Use fresh hydraulic oil 93165387 / 2000884
- Replace the filter kit 20986573 / 20946129 during pump replacement
- Check the pump wiring and connector if electrical faults are present
- Verify proper AWD operation after service
Important Service Note
On Gen 4 systems, replacing the pump without replacing a clogged filter can quickly damage the new pump. For reliable repair, service the filter and oil together with the pump.
Why Haldex Pumps Fail
1. Internal Wear
Gen 4 pumps can wear internally and lose the ability to create the oil pressure needed for clutch engagement.
2. Clogged Filter
A restricted filter forces the pump to work harder until it overheats or burns out.
3. Contaminated or Old Hydraulic Oil
Old oil increases wear inside the pump and reduces the performance of the AWD coupling.
4. Ignored AWD Fault Symptoms
Continuing to drive with AWD fault codes or warning symptoms can lead to worsening traction performance and additional system wear.
Quality Assurance & Warranty
12-Month Warranty: This new Haldex pump is supplied with a 12-month functionality warranty under normal operating conditions.
Warranty Coverage Includes:
- Pump motor malfunction
- Internal functional failure of the replacement unit
- Operational defects under normal use
Warranty Exclusions:
- Incorrect installation
- Failure to replace contaminated oil or clogged filter
- External wiring or control module faults
- Physical damage or misuse
Questions or Need Help?
Our technical team is ready to assist with compatibility checks, installation guidance and product selection.
Contact
Important Purchase Information
- Please verify this part fits your specific vehicle before placing an order
- Photos are for illustrative purposes only
- Worldwide shipping is available
- If your country is not listed at checkout, contact us and the order can be processed manually
- We recommend changing the hydraulic oil and filter when replacing the pump
- Please check if this product fits your car before purchase
