HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsAtlantic Automotive Enterprises 5598N Power Steering Pump
Part #: 5598N

Atlantic Automotive Enterprises 5598N Power Steering Pump

New Power Steering Pump
8 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
New Power Steering Pump
Fitment: Lexus and Toyota, Highlander and RX300
Easy Returns — Return within 60 days for a full refund
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New Hydraulic Power Steering Pump

Atlantic Automotive Enterprises New Power Steering Pump 5598N is an application-specific hydraulic replacement for select Lexus and Toyota vehicles. It is built with OE-quality components, 100% hydraulically tested under load in the USA, and supplied without a reservoir or pulley.

Key Features

  • Application-specific fitment for select 1999-2003 Lexus RX300 and 2001-2003 Toyota Highlander models
  • Each unit is 100% hydraulically tested under load in the USA
  • Upgraded shaft is heat treated to help resist premature failure
  • OE-quality component construction with inspection and testing before shipment
  • Sold without a core charge
  • Without reservoir or pulley

Product Details

AAE New Power Steering Pump 5598N is a hydraulic power steering pump for drivers replacing a worn or noisy pump on a Lexus RX300 or Toyota Highlander. The pump is built to OE fitment expectations and tested for operation before it leaves the facility. For long service life and proper steering performance, the steering system should be flushed and refilled with an OE-approved power steering fluid during service. This part cross-references OE-style numbers 443248020 and 4431028240 for the same application.

What It Helps Address

  • Whining or groaning from the power steering pump
  • Heavy or inconsistent steering effort
  • Fluid leakage from a worn hydraulic pump assembly
  • Poor steering assist caused by internal pump wear
  • Noise or vibration after pump deterioration

Installation Notes

Confirm vehicle application before installation. This pump is for 1999-2003 Lexus RX300 and 2001-2003 Toyota Highlander models listed below, with notes for new, without pulley, without reservoir, and with return pipe. Inspect the steering system for contamination, flush the system thoroughly, and refill with OE-approved power steering fluid to protect the replacement pump.

  • Fits 1999-2003 Lexus RX300, N/A
  • Fits 2001-2003 Toyota Highlander, N/A

Quality Assurance

Atlantic Automotive Enterprises 5598N is manufactured with OE-quality components and undergoes inspection and testing procedures to verify fitment and operation. Each unit is 100% tested in the USA. Warranty coverage is 24 months or 24,000 miles.

BrandAtlantic Automotive Enterprises
Part Number5598N
PositionNew Power Steering Pump
Application TypeApplication specific
Bullet Point 1Each unit is 100% hydraulically tested under load in the usa.
Bullet Point 2Upgraded shaft is heat treated to prevent premature failure.
Bullet Point 3Aae new p/s pumps are sold without a core charge.
Bullet Point 4Without reservoir or pulley.
Warranty Distance24000
Warranty Distance UOMMi
Warranty Time24
Warranty Time UOMMo

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003LexusRX3003.0LV6N/ANew, w/o Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2003ToyotaHighlander3.0LV6N/ANew, w/o Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2002LexusRX3003.0LV6N/ANew, w/o Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2002ToyotaHighlander3.0LV6N/ANew, w/o Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2001LexusRX3003.0LV6N/ANew, w/o Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2001ToyotaHighlander3.0LV6N/ANew, w/o Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
2000LexusRX3003.0LV6N/ANew, w/o Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump
1999LexusRX3003.0LV6N/ANew, w/o Pulley, w/o Reservoir, w/Return Pipe; New Power Steering Pump

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

44310282404431048030443248020

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.