21-5442 Power Steering Pump with Pulley Fit for Honda Pilot & Odyssey

In this review the 21-5442 power steering pump with pulley is assessed as a focused replacement option for owners of select Honda and Acura V6 models. It is best for someone who needs a direct-fit pump to restore steering assist quickly; the single biggest reason to buy is the pump's compatibility with multiple OEM numbers and model years, making it a convenient swap for a leaking or weak original unit. The review notes real-world tradeoffs such as mixed reports on noise and variable longevity so buyers should weigh cost and installation care.

Key Features

• Direct OEM fit: Matches multiple part numbers including 56110-RGL-A03 and 56110-PVJ-A01 so it installs as a direct replacement for the listed Pilot, Odyssey, and MDX years.
• Pre-tested unit: Each pump is 100% tested before shipment, which helps reduce early failures out of the box when installed correctly.
• Durable construction: Built from high-grade aluminum alloy with a corrosion-resistant finish for longer service life compared with untreated replacements.
• Hydraulic performance: The optimized internal hydraulic design converts drive power to fluid pressure to restore smooth, responsive steering control.
• Installation guidance: The listing includes clear pre-install steps such as flushing the system, replacing O-rings, and bleeding air to reduce noise and leaks after fitting.

Who It's For

This pump is for owners of 2005-2008 Honda Pilot 3.5L, 2005-2010 Honda Odyssey 3.5L, and Acura MDX 2003-2013 V6 models who need a cost-effective direct replacement for a failing power assist pump. Mechanics and DIYers who can flush the steering system, replace O-rings, prime the pump with fluid before installation, and properly bleed air will get the best results.

It is not the ideal choice for drivers who require a lifetime quiet operation guarantee or those unwilling to follow the recommended installation steps; several customers reported noise issues linked to trapped air or hose restriction, and a small number reported premature failure after months of use.

Pros & Cons

Pros

• Wide compatibility with many OEM numbers simplifies replacement across Honda and Acura V6 models.
• Reasonable price delivers clear value for owners needing a direct-fit restore of steering function.
• Constructed from aluminum alloy with corrosion-resistant finish for improved durability versus untreated parts.

Cons

• Some users report higher noise levels if the system is not bled correctly or if suction resistance is high.
• Mixed long-term reliability reports mean buyers should follow installation recommendations and inspect related hoses and filters.

Specifications

Part Number	21-5442 (includes references such as 56110-RGL-A03, 56110-PVJ-A01)
Fitment	2005-2008 Honda Pilot 3.5L; 2005-2010 Honda Odyssey 3.5L; 2003-2013 Acura MDX 3.5/3.7L
Engine Type	V6 J35/J37 3.5L and 3.7L gasoline naturally aspirated
Construction	High-grade aluminum alloy with corrosion-resistant finish
Testing	100% tested before shipment
Included	Power steering pump with pulley (replace O-rings and seals separately)

Our Verdict

The 21-5442 power steering pump is a practical, cost-conscious replacement for Honda Pilot, Odyssey, and Acura MDX owners who need to restore steering assist quickly. It offers good compatibility and durable materials, but achieving quiet, long-lasting operation depends on correct flushing, priming, and bleeding during installation. For those willing to follow the installation guidance, it represents solid value as a direct-fit repair option.

Frequently Asked Questions

Will this pump fit my vehicle?
Check the listed years and engine types against your VIN and OEM part number; this pump fits specified 3.5L and 3.7L V6 Pilot, Odyssey, and MDX models.

Why is the pump noisy after installation?
Noisy operation is commonly caused by trapped air, high suction resistance, or incorrect pressure setting; ensure the system is flushed, O-rings replaced, pump primed with fluid, and air is bled fully.

What should be replaced during installation?
Always replace return and high-pressure hose O-rings and seals, flush the system, and use the manufacturer-recommended power steering fluid for best results.