Nissens 9991024 A/C Expansion Valve

Overview

Nissens A/C Expansion Valve 9991024 is a block-style thermal expansion valve for R134 refrigerant systems. It is built with an aluminum body and is listed with included O-rings and mounting bolts where applicable, making it a direct service part for select BMW, Mercedes-Benz, and Toyota applications.

Compatible With BMW 230i, 430i, M2, M240i, M3, M340i, M4, M440i, X4, Z4, and X3 applications, plus Mercedes-Benz CLA250, CLA35 AMG, CLA45 AMG S, EQB 250+, EQB 300, EQB 350, GLA250, GLA35 AMG, GLB250, GLB35 AMG, A220, A35 AMG, and GLA45 AMG applications. It also fits Toyota GR Supra applications. Part number 9991024 is cross-referenced to 64116994989 and UAC EX10717C for the same application.

Key Features

• Block-style A/C expansion valve for refrigerant flow control
• Aluminum construction for service durability
• Configured for R134 refrigerant systems
• O-rings included for sealing at installation
• Mounting bolts included where applicable
• OE-matching pressure performance, tightness, opening, and set-point control

Detailed Description

Nissens 9991024 is engineered as a thermal expansion valve for automotive air conditioning systems that require precise refrigerant metering. The block design and aluminum construction support stable operation in service applications, while Nissens testing focuses on pressure performance, sealing integrity, opening behavior, set-point accuracy, and internal finish to match OE standards. This part number 9991024 is used across a wide range of BMW, Mercedes-Benz, and Toyota platforms, including BMW 330i, BMW X3, Mercedes-Benz CLA250, Mercedes-Benz GLB250, and Toyota GR Supra applications.

What It Helps Solve

• Inconsistent refrigerant metering through the A/C system
• Loss of cooling performance from a worn expansion valve
• Seal leakage at the valve connection points
• Improper system pressure control during A/C operation
• Fitment issues when replacing an OE-style block expansion valve

Installation Notes

Verify refrigerant type before installation; this valve is specified for R134 systems. Replace sealing components as required and follow the vehicle service procedure for evacuation, recharge, and leak checking after installation. Confirm the application by part number 9991024 and match the OE-style block configuration before service.

Quality Assurance

Nissens manufactures this expansion valve to precise OE matching standards and validates pressure performance, tightness, opening characteristics, set-point setting, and inner finish through comprehensive testing. Part number 9991024 cross-references 64116994989 and UAC EX10717C.