88964358 Power Steering Pump

Power Steering Pump 88964358

The 88964358 Power Steering Pump, also known as OE 88964358 Power Steering Pump, 88964358 Power Steering Pump for CHEVROLET, 88964358 88964571 for CHEVROLET and 88964358 15267585 Car Power Steering Pump, is a high-quality hydraulic steering component designed to provide stable hydraulic pressure for the vehicle's power steering system. Driven by the engine, this premium vane-type pump continuously supplies hydraulic fluid to the steering gear, ensuring smooth steering response, reduced steering effort, and reliable vehicle handling under various driving conditions.

Manufactured according to OE specifications, this power steering pump delivers dependable performance, excellent durability, and long service life. Designed as a direct replacement for the original equipment unit on compatible General Motors V6 vehicles, it helps restore proper steering assistance and driving comfort.

OE-quality replacement for OEM 88964358

Provides stable hydraulic pressure for consistent steering assistance

Remotely reservoir-fed hydraulic pump design (Reservoir not included)

Smooth and responsive steering performance

Precision-machined internal components for reliable operation

Leak-tested and performance-tested before shipment

Durable cast iron housing construction

Direct-fit replacement for easy installation

Long service life and dependable performance

Pump Housing: Heavy-duty cast iron housing designed for maximum wear resistance, structural strength, and stability under high hydraulic pressure.

Rotor and Vane Assembly: Precision-engineered internal rotor and vane mechanism generates stable and uniform hydraulic pressure for steering assistance.

Drive Shaft Assembly: Smooth-end drive shaft designed specifically for press-fit pulley installation, transferring engine power to the pump for continuous circulation.

Hydraulic Inlet and Outlet Ports: OE-style fluid connections, including a specialized high-pressure outlet, ensure precise, leak-free alignment with the vehicle's steering lines.

Shaft Seal System: High-quality, temperature-resistant sealing components help prevent internal hydraulic fluid leakage.

Bearing Assembly: Low-friction, heavy-duty bearings support smooth shaft rotation and reduce internal mechanical wear.

● Disconnect the vehicle battery before starting the installation.

● Always verify compatibility using the VIN number and OEM part number before installation.

● Important: Since this pump comes without a pulley and reservoir, use a professional power steering pulley installer/remover tool to press-fit the original pulley onto the smooth shaft; never hammer it on, as internal damage to the cast iron pump will occur.

● Thoroughly flush the entire steering system with fresh fluid to remove contaminated fluid, sludge, and metallic debris before installing the new pump.

● Inspect all hydraulic hoses, high-pressure lines, and the vehicle's remote fluid reservoir before connecting to the new pump.

● Use only the specific GM-approved power steering fluid required by the vehicle manufacturer; do not use regular automatic transmission fluid (ATF).

● Ensure all hydraulic connections and mounting bolts are tightened properly to OE torque specifications to prevent fluid weeping.

● Crucial: Bleed the steering system thoroughly after installation (with front wheels off the ground, turning the steering wheel slowly lock-to-lock at least 20 times before starting the engine) to completely remove trapped air and prevent pump whining noise.

● Start the engine, check for hydraulic fluid leaks, and inspect the remote reservoir for signs of foaming or aeration.

● Verify proper steering assistance during the initial road test, and recheck the fluid level after the vehicle reaches operating temperature.

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