Nissens 890191 A/C Compressor

Nissens 890191 A/C Compressor Overview

The Nissens 890191 is a direct-fit A/C compressor for select Porsche applications, built for R134A systems and filled with PAG 46 oil. It uses a 7SEU17C compressor design and a 6-groove pulley for OE-style replacement on the 911, Boxster, and Cayman.

Compatible with 2009-2017 Porsche 911, 2009-2016 Porsche Boxster, and 2009-2012 / 2014-2016 Porsche Cayman applications, this compressor is built for straightforward service on vehicles that require a first-fit replacement.

Key Features

• Part number: 890191
• Refrigerant type: R134A
• Compatible refrigerant oil: PAG 46
• Pre-filled with PAG oil
• 7SEU17C compressor type
• 6-groove pulley design
• First Fit configuration for time-saving installation
• Includes O-rings when needed

Detailed Product Description

Nissens develops thermal management components to OE-level standards, and this A/C compressor reflects that focus with application-specific fitment and service-ready specifications. The 890191 is engineered for Porsche HVAC systems that use R134A refrigerant and PAG 46 oil, helping restore proper compressor operation in vehicles such as the Porsche 911, Boxster, and Cayman. The first-fit format supports efficient replacement where the original system calls for a direct-match compressor.

This part cross-references UAC CO29251C and CO105109C for the same application.

What This Compressor Helps Address

• Weak or no cabin cooling from a worn compressor
• Noisy compressor operation caused by internal wear
• Loss of refrigerant circulation in the A/C system
• Compressor seizure or failure that stops system performance
• Service delays when a direct-fit Porsche A/C compressor is needed

Installation Notes and Tips

Verify refrigerant type, oil specification, and pulley groove count before installation. This compressor is specified for R134A systems with PAG 46 oil and a 6-groove pulley. Confirm vehicle fitment by year and model before service on the Porsche 911, Boxster, or Cayman. Proper evacuation, leak checking, and system recharge are required after compressor replacement.

Quality Assurance

Nissens is a market-leading manufacturer of thermal and engine efficiency components, and its products are developed and manufactured to consistent quality standards across the range. The 890191 is part of that Genuine Nissens Quality approach, with specifications aligned to the listed Porsche applications.