A1 CARDONE 21-5439 power steering pump for the 2005-2010 Chrysler 300 and other vehicles supplies hydraulic pressure for power-assisted steering. The A1 CARDONE power steering pump is remanufactured; original designs are reviewed for improvement and upgrades are added where applicable.
- Critical components, including campacs and spool valves, are triple-tested
- 100% new O-rings and HNBR seals; HNBR does not break down at high temperatures like conventional seal material
- Shaft surfaced to precise specifications to limit premature seal wear and extend pump life
- Pressure relief valve is tested and calibrated
- Aluminum housing with a press-on shaft
Quick facts
- Part: A1 CARDONE 21-5439 power steering pump
- Fits: 2005-2010 Chrysler 300 and other vehicles
- Material: Aluminum housing
- Condition: Remanufactured
A whining noise or stiff steering can mean the pump is wearing out. A binding steering gear, a loose or damaged pulley or contaminated fluid can be behind those signs too, so find the cause before you buy a pump.
Fits
It is a power steering pump for the 2005-2010 Chrysler 300, the 2006-2010 Dodge Charger and the 2009-2010 Dodge Challenger, and each takes one. If your car is not named here, look it up in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Inlet diameter: 14.5542 mm (0.573 in)
- Inlet attachment: barb, 1 inlet
- Outlet attachment: threaded, 1 outlet
- Outlet thread size: 16x1.5
- Hose port type: O-ring
- Shaft type: press-on
Build and materials
- Housing material: aluminum
- Seals: HNBR, with new O-rings
- Condition: remanufactured
- Country of origin: Mexico
In the box
One hydraulic pump, one instruction sheet and one sealing kit. Mounting hardware, a pulley, a reservoir, a reservoir cap and a filter are not included, so plan on new mounting hardware.
Installation notes
- An instruction sheet comes with the pump for the steps.
- If debris is found in the flow control valve bore, the system must be checked for contamination and flushed.
Interchange: 4782523AC · 4782523AD · 4782523AE · 4782523AF
This part cross-references / interchanges with the following part numbers:
4782523AC, 4782523AD, 4782523AE, 4782523AF
Frequently Asked Questions
Is this the right power steering pump for a 2005-2010 Chrysler 300?
Yes, A1 CARDONE 21-5439 is listed for the 2005-2010 Chrysler 300 and takes one pump per car. For a different model, look in the "Vehicles it fits" section.
Does the 21-5439 pump come with a pulley or reservoir?
No, A1 CARDONE 21-5439 comes with the hydraulic pump, an instruction sheet and a sealing kit. The pulley, reservoir, reservoir cap, filter and mounting hardware are not included.
What fittings does the 21-5439 power steering pump have?
This power steering pump has one barb-type inlet with a 14.5542 mm (0.573 in) diameter and one threaded outlet with a 16x1.5 thread. The hose port type is O-ring.
My old pulley fits loosely on the new pump shaft. What should I do?
The old pulley must be replaced; if the shaft was mushroomed before removal, its bore has enlarged. This pump has a press-on shaft and no pulley.
Is each remanufactured 21-5439 pump tested?
Yes, every unit goes through a hydraulic efficiency test, and the final assembly is computer-tested for pressure, bypass, fluid flow, valve operation, steering effort and noise.
