Aisin Power Steering Pumps: Finding the Right OEM-Grade Replacement

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Replacing a worn hydraulic steering unit requires matching the pump casting, hose fittings, and shaft dimensions directly to your engine bay. Drivers evaluating an aisin power steering pump face choices between lightweight aluminum castings and heavy cast iron housings, factory-pressed pulleys versus bare spline shafts, and integrated fluid tanks versus remote hose plumbing. Selecting an incorrect configuration leads to belt alignment failure, fluid leaks under operating pressure, or the need to source specialized press tools mid-job. Comparing these direct replacements ensures you secure the correct mechanical configuration for your steering rack.

The catalog from AISIN organizes hydraulic steering replacements strictly around vehicle manufacturer architecture, engine family, and mounting specifications. Units designated under the PSPH line address Honda and Acura engines, PSPGM targets General Motors trucks and sport utility platforms, and PSPT supports Toyota and Lexus drivetrains. Across these model codes, the brand balances aluminum and cast iron housings to replicate original engine bay dynamics while minimizing internal operating friction and noise. Checking mounting style and port architecture within each series confirms a straightforward installation.

Criteria matrix What each model in this report is credited with

Rows are the criteria that come up in the pros and cons listed for this lineup. A check means the criterion is named in this report’s write-up of that model; a dash means it is not. Criteria that apply to every model, or to only one, are left out because they separate nothing.

Criterion	PSPH-00224 Power Steering Pump 8.8/10	PSPH-00148 Power Steering Pump 8.2/10	PSPGM-00008 Power Steering Pump 8.6/10	PSPH-00164 Power Steering Pump 8.6/10	PSPT-00424 Power Steering Pump 8.4/10	PSPT-00242 Power Steering Pump 9.4/10
High-pressure outlet	✓Named	Not named	✓Named	Not named	Not named	✓Named
M16x1.5 threaded	Not named	Not named	✓Named	Not named	✓Named	✓Named
Drive pulley	✓Named	✓Named	Not named	Not named	✓Named	Not named
Four-cylinder engines	✓Named	✓Named	Not named	Not named	Not named	Not named
Bolt-on hydraulic	✓Named	✓Named	Not named	Not named	Not named	Not named
Aluminum housing	✓Named	✓Named	Not named	Not named	Not named	Not named
Press-on pulley	Not named	Not named	✓Named	Not named	✓Named	Not named
Fluid reservoir	Not named	Not named	✓Named	Not named	✓Named	Not named
Criteria named	5 / 8	4 / 8	4 / 8	0 / 8	4 / 8	2 / 8

Built from the wording of this report, not from a bench test. A dash is not a fault: it only means the write-up does not mention that point for that model. Scores next to each model are out of 10, based on listed specifications and buyer feedback.

Aisin Power Steering Pumps Lineup at a Glance

The Models in Detail

AISIN AFTERMARKET PSPH-00224 Power Steering Pump

Best for: Honda and Acura V6 platform drivers

Pros

• Pre-installed spline pulley
• Lightweight aluminum housing
• Direct bolt-on hydraulic outlet

Cons

• Requires separate remote reservoir reuse
• Not compatible with four-cylinder engines

The AISIN AFTERMARKET PSPH-00224 Power Steering Pump is an engineered hydraulic solution for Honda and Acura transverse V6 platforms. Built with a machined aluminum housing, this 5.29-pound unit features an included drive pulley mounted to a spline attachment shaft. The fluid interface consists of a pipe-style low-pressure inlet and a bolt-on high-pressure outlet, designed to link with the vehicle’s factory remote reservoir layout. Operating parameters are optimized to lower internal friction and reduce noise, vibration, and harshness across varied steering angles.

This unit is specifically mapped to high-displacement family haulers and luxury sedans, including the 2005-2008 Honda Pilot 3.5L, 2005-2010 Odyssey 3.5L, 2003-2013 Acura MDX 3.5L/3.7L, and 2004-2008 Acura TL 3.2L. Because it supplies the higher flow rates demanded by these larger multi-valve V6 platforms, it is not suitable for four-cylinder applications. When completing an engine compartment overhaul alongside maintaining mobile gear powered by a champion power generator, having an exact-fit pump with an attached pulley eliminates the hassle of transferring critical drive components.

If your vehicle is a smaller inline-four commuter such as an early CR-V or Accord, this V6 pump yields ground to the PSPH-00148. However, for mid-size SUV and minivan owners experiencing hydraulic whine or assist dropouts under load, the AISIN PSPH-00224 delivers a precise factory replacement with pre-assembled components.

AISIN AFTERMARKET PSPH-00148 Power Steering Pump

Best for: Honda and Acura four-cylinder commuter vehicles

Pros

• Factory bolt-on pulley configuration
• Durable aluminum construction
• Covers extensive CR-V and TSX years

Cons

• Incompatible with later 2008 Accord redesigns
• Inlet hose hardware not specified

Designed for compact Honda and Acura powertrains, the AISIN AFTERMARKET PSPH-00148 Power Steering Pump utilizes an aluminum housing combined with a bolt-on pulley attachment. Weighing 6.04 pounds, this direct-fit component incorporates precision internal geometry to control operating temperatures and eliminate steering shudder. The exterior features a machined finish that matches OEM specifications, and the unit is supplied with the drive pulley pre-installed.

Vehicle fitment targets high-volume four-cylinder engines spanning 2.0L, 2.3L, and 2.4L displacements. Supported models include the Honda CR-V (2002, 2005-2011), Accord (2006-2007), Element (2006-2011), Acura RDX (2007-2012), TSX (2006-2008), and RSX (2002-2006). The bolt-on pulley design matches the specific belt offset used on these K-series engine blocks, providing reliable alignment without the need for press tools during installation.

While this unit provides broad coverage for older K-series engines, it gives way to the PSPH-00164 on 2008-2012 Accord models due to changes in bracket layout and pulley attachment styles. For eligible four-cylinder crossover and sedan platforms, the AISIN PSPH-00148 represents an accessible, bolt-on hydraulic pump replacement.

AISIN AFTERMARKET PSPGM-00008 Power Steering Pump

Best for: General Motors full-size truck and SUV owners

Pros

• Integrated reservoir included
• Heavy-duty cast iron housing
• Standard M16x1.5 high-pressure outlet

Cons

• Pulley not included in box
• Requires press-on pulley installation tool

The AISIN AFTERMARKET PSPGM-00008 Power Steering Pump addresses the heavy-duty hydraulic requirements of full-size domestic trucks and sport utility vehicles. Unlike the aluminum models found in passenger cars, this assembly is manufactured with a cast iron body to endure severe belt tension and extended heat cycles. It features an integrated, body-mounted fluid reservoir and utilizes a standard M16x1.5 threaded high-pressure outlet port.

This heavy-duty casting serves a broad range of General Motors platforms, including the Chevrolet Silverado 1500 and GMC Sierra 1500 (1999-2013), Tahoe and Suburban 1500 (2007-2014), Yukon (2007-2014), Cadillac Escalade (2007-2014), and select 1996 C2500/K2500 Suburban platforms. Displacement compatibility covers the 4.3L V6 as well as V8 powerplants ranging from 4.8L up to big-block 7.4L iterations. Keeping garage tools charged via a samsung wireless portable charger power bank android fast charging setup lets technicians focus on installation details.

Because the pump uses a press-on pulley shaft and does not include a pulley in the box, mechanics must transfer the original pulley using a dedicated installation kit. When selecting an aisin aftermarket power steering pump for GM trucks, the AISIN PSPGM-00008 provides the rugged cast iron strength necessary for towing and utility duties.

AISIN AFTERMARKET PSPH-00164 Power Steering Pump

Best for: Eighth-generation Honda Accord four-cylinder sedans

Pros

• Pre-mounted drive pulley
• Corrosion-resistant aluminum body
• Engineered for reduced noise and vibration

Cons

• Single-engine displacement application
• Press-on pulley design limits serviceability

The AISIN AFTERMARKET PSPH-00164 Power Steering Pump is a specialized replacement tailored specifically to eighth-generation Honda sedans. Fabricated from aluminum with a clean machined exterior, this 6.02-pound assembly includes a factory-installed pulley mounted via a press-on attachment. The internal valving is designed to reduce parasitic drag on the engine while suppressing fluid resonance inside the steering system.

Application coverage for this specific model is precise: it fits the 2008-2012 Honda Accord equipped with the 2.4L four-cylinder engine. During this vehicle generation, engine compartment geometry and belt routing shifted compared to earlier generations, requiring this specific pump casting over universal alternatives. It carries reference part numbers including 56110-R40-325 and 56100-R40-A03.

This unit yields to the PSPH-00148 if you are servicing a 2006-2007 Accord, and to the PSPH-00224 for any V6 Accord applications. For owners of the 2008-2012 2.4L Accord, the AISIN PSPH-00164 is the exact match for maintaining fluid control and smooth rack assist.

AISIN AFTERMARKET PSPT-00424 Power Steering Pump

Best for: Modern Toyota and Lexus V6 platforms

Pros

• Pulley included in assembly
• Machined aluminum housing
• Precision M16x1.5 threaded outlet

Cons

• Remote fluid reservoir not included
• Does not fit older 3.0L or 3.3L platforms

Covering modern front-wheel-drive Toyota and Lexus platforms, the AISIN AFTERMARKET PSPT-00424 Power Steering Pump features a lightweight aluminum casting fitted with a factory-installed pulley. Built with a press-on pulley attachment and a metric M16x1.5 threaded outlet connection, the unit interfaces directly with high-pressure steering lines without secondary adaptors. Internal components are built to AISIN OEM tolerances to lower operational friction and reduce fluid shear.

Fitment focuses squarely on the popular 3.5L V6 engine family across the Toyota Camry (2007-2011), Toyota Avalon (2005-2012), and Lexus ES350 (2007-2012). These platforms require balanced hydraulic volume to ensure responsive assist at parking speeds without over-boosting on highways. Sourcing an assembly that comes pre-fitted with the drive pulley reduces shop time and removes the risk of bent flanges during assembly.

When performing suspension checks alongside tire maintenance using a craftsman tire inflator portable air compressor, verifying hydraulic integrity keeps the steering responsive. This modern 3.5L pump gives way to the PSPT-00242 when servicing older 3.0L and 3.3L platforms. For post-2005 3.5L Toyota vehicles, the AISIN PSPT-00424 delivers direct-fit performance.

AISIN AFTERMARKET PSPT-00242 Power Steering Pump

Best for: Legacy Toyota and Lexus 3.0L/3.3L platforms

Pros

• Sturdy cast iron build
• Standard spline pulley shaft
• Matches classic Toyota V6 configurations

Cons

• Pulley not included in packaging
• Heavier cast construction

The AISIN AFTERMARKET PSPT-00242 Power Steering Pump provides replacement coverage for earlier generations of Toyota and Lexus V6 powertrains. Constructed with a robust cast iron housing, this 5.14-pound pump is designed to withstand continuous hydraulic duty. It features a spline-style pulley attachment shaft and an M16x1.5 threaded high-pressure outlet port, matching original factory plumbing routes.

Compatible vehicles include the Toyota Camry (1995-2006), Highlander (2004-2007), Sienna (1998-2003), Avalon (1995-2004), Solara (1999-2003), Lexus RX330 (2004-2006), and Lexus ES300 (1999-2001). All applications run either the 3.0L or 3.3L V6 engine. Because this unit relies on a spline shaft, it matches original Toyota drive pulleys designed for splined locking systems.

Unlike newer aluminum counterparts, this cast iron model does not include a pulley in the box, requiring you to retain and install your original splined pulley. Drivers with 2007 and newer 3.5L engines should opt for the aluminum PSPT-00424. For maintaining veteran Toyota and Lexus family vehicles, the AISIN PSPT-00242 delivers dependable hydraulic durability.

Matching a Model to Your Setup

• Honda and Acura V6 Platforms: Choose the AISIN PSPH-00224 for Pilot, Odyssey, MDX, and TL models requiring an aluminum pump with an integrated spline pulley and bolt-on outlet.
• Early Honda Four-Cylinder Models: Select the AISIN PSPH-00148 for 2002-2011 CR-V, Element, or 2006-2007 Accord platforms utilizing a bolt-on pulley interface.
• General Motors Half-Ton Trucks and SUVs: Pick the AISIN PSPGM-00008 for Silverado, Sierra, Tahoe, and Yukon models that demand a cast iron pump body with an attached reservoir.
• Eighth-Generation Honda Accord 2.4L: Install the AISIN PSPH-00164 to match the specific casting offsets and pre-pressed pulley requirements of 2008-2012 models.
• Modern Toyota and Lexus 3.5L V6 Vehicles: Fit the AISIN PSPT-00424 for Camry, Avalon, and ES350 platforms that utilize an aluminum body with a pre-mounted press-on pulley.
• Classic Toyota and Lexus 3.0L and 3.3L V6 Vehicles: Deploy the AISIN PSPT-00242 for older Camry, Sienna, and Highlander models requiring a cast iron body with a splined shaft.

Before You Buy

Reviewing what is excluded from replacement packaging is essential for an uninterrupted repair. The listings reveal differences across the lineup regarding included hardware. For instance, the AISIN PSPGM-00008 includes an attached reservoir but omits the drive pulley, while the AISIN PSPH-00224 includes a pre-mounted pulley but specifies that a remote reservoir is required and not included. Similarly, the PSPT-00242 arrives as a bare pump without a pulley. The product listings do not specify whether replacement O-rings, crush washers, or mounting bolts are packed inside the carton.

Furthermore, fluid specifications and flushing guidelines are not detailed in the catalog descriptions. Hydraulic systems are sensitive to fluid chemistry, particularly Honda platforms which require dedicated steering fluids rather than standard automatic transmission fluids. The listings do not specify the exact fluid volume required to complete a full system bleed, nor do they detail the thread pitch of the pipe inlet connections on models like the PSPH-00224. Confirm your factory fluid type and inspect your return lines prior to initiating disassembly.

FAQ

How do I know which aisin power steering pump to buy?

Determine your vehicle make, engine displacement, model year, and existing pulley mounting style. Look at your current pump to verify whether the drive pulley is attached via splines, retaining bolts, or a press-fit hub. Comparing these mechanical details against the application lists for PSPH, PSPGM, and PSPT models ensures you order the correct casting.

Are drive pulleys included with every AISIN replacement pump?

No, pulley inclusion varies across individual part numbers. Models such as the AISIN PSPH-00224, PSPH-00148, PSPH-00164, and PSPT-00424 state that pulleys are included. Conversely, the PSPGM-00008 and PSPT-00242 listings do not include a pulley, requiring the reuse of your factory hardware or separate sourcing.

What is the difference between aluminum and cast iron pump bodies?

Aluminum housings, featured on the PSPH series and PSPT-00424, offer weight savings and heat dissipation suited for passenger cars. Cast iron housings, found on the PSPGM-00008 and PSPT-00242, provide structural rigidity to resist deflection under high belt tension in trucks and older V6 layouts.

Do these pumps include replacement high-pressure O-rings?

The product listings do not specify whether new sealing O-rings or outlet crush washers are provided in the packaging. Because hydraulic lines depend on fresh elastomeric seals to prevent aeration and leaks, sourcing replacement seals matching your vehicle’s OEM part numbers is recommended.

Can I use automatic transmission fluid in Honda AISIN pumps?

The listings do not specify approved fluid formulations, but standard automotive engineering practices require Honda and Acura steering systems to use vehicle-specific power steering fluid. Using generic transmission fluid can degrade internal seals and lead to premature failure.