Nissens 891634 A/C Compressor

Overview

The Nissens 891634 A/C compressor is built to OE standards for dependable refrigerant circulation and stable HVAC performance. It is a fitment-based replacement for select Toyota SUV applications, including the Toyota 4Runner and Toyota FJ Cruiser.

This compressor uses R134A refrigerant, PAG 46 oil, and a 10S17C compressor design with a serpentine pulley setup. The 891634 part number is also referenced in cross-application listings for the same service need.

Key Features

• OE-standard compressor construction from Nissens
• 10S17C compressor type with 12-volt operation
• R134A refrigerant and PAG 46 oil specification
• Clutch included with 7-groove serpentine pulley
• Pre-filled with oil and supplied with O-rings
• Designed for low noise, reduced vibration, and consistent pumping performance

Product Details

Nissens engineers the critical compressor components, including the pulley, clutch, hub, bearing, and wobble plate, to handle demanding operating conditions while maintaining efficient refrigerant flow. That focus on component control helps support smooth operation and durability in HVAC systems that rely on precise compressor performance. The 891634 compressor is a direct replacement choice for Toyota 4Runner and Toyota FJ Cruiser applications that use the listed refrigerant and electrical specifications.

This part cross-references UAC (e.g., CO10834C) for the same application.

Common Issues This Part Can Address

• Weak or inconsistent cabin cooling
• Noisy compressor operation
• Excessive vibration from worn internal components
• Loss of refrigerant compression efficiency
• Failure of the existing A/C compressor clutch or pulley assembly

Installation Notes

Fits 2003-2009 Toyota 4Runner, N/A. Fits 2007-2009 Toyota FJ Cruiser, N/A. The fitment notes state that the compressor is filled with shipping oil only and must be drained and refilled before installation. Verify refrigerant type, oil specification, connector pin count, and pulley groove count before service. The 891634 should be matched to the vehicle's HVAC system requirements before charging.

Quality Assurance

Nissens manufactures compressors to OE standards and test-proves them for high-stress operation. The brand's component-level design focus supports consistent performance and durability in service.