ACDelco Expansion Valve Kit 15-51325 Metal Machined Dual Port Design

Description

Product Overview

ACDelco’s Expansion Valve Kit 15-51325 is engineered to meet the exacting standards of original equipment manufacturers, delivering a metal‑based solution that combines durability with precision engineering. The valve housing is forged from high‑grade steel, then machined to a smooth finish that resists corrosion and wear even in the harsh environment of automotive air‑conditioning systems. Featuring two ports—one inlet with a National Pipe Tapered (NPT) connection and one outlet with a standard NPT thread—the kit ensures a leak‑free seal when installed correctly. The component measures 5.4 by 4.3 by 5.5 inches and weighs just over five ounces, making it compact enough to fit within tight engine compartments while still providing the robust performance required for consistent refrigerant flow. Every unit is tested against GM OEM specifications, guaranteeing that the expansion valve will regulate pressure accurately, maintain optimal evaporator temperature, and protect the compressor from overload. The machined exterior not only contributes to a professional appearance but also facilitates easier handling during installation, reducing the risk of damage to surrounding components. The kit carries the manufacturer part number 22989959 and matches the GM OEM part number, ensuring a direct fit for a wide range of models that use the 15‑51325 specification. Its global trade identification number (GTIN) 00808709079910 and UPC 808709079910 further confirm its authenticity, while the inclusion of a machined metal valve body guarantees long‑term service life even under continuous cycling. During production, each valve undergoes a rigorous pressure‑testing cycle that simulates real‑world operating conditions, confirming its ability to maintain precise flow control across a range of temperatures. The precision‑engineered inlet and outlet ports align perfectly with standard NPT fittings, simplifying the installation process and reducing the need for additional adapters. Additionally, the compact dimensions allow the valve to be positioned in confined spaces without compromising the surrounding hose routing or coolant pathways.

Usage

The Expansion Valve Kit is a vehicle‑specific component, meaning it has been calibrated to match the refrigerant flow requirements of particular makes and models that use the GM OEM standard. When paired with the correct refrigerant type and system pressure, the valve modulates the flow to the evaporator, preventing over‑cooling and ensuring the cabin temperature remains comfortable. The kit arrives in a compact package measuring 6.35 L × 12.446 H × 9.398 W cm and weighing only 0.272 kg, which includes the valve, mounting hardware, and a detailed installation guide. The included guide provides step‑by‑step instructions, torque specifications, and safety warnings, allowing both professional technicians and experienced DIY enthusiasts to complete the replacement with confidence. Because the valve conforms to GM OEM standards, it integrates seamlessly with existing system components such as the compressor, condenser, and receiver‑drier, eliminating the need for additional modifications or custom fittings. The robust metal construction also offers resistance to vibration and thermal expansion, extending the service interval and reducing the likelihood of premature failure. In practice, the kit is ideal for a wide range of passenger cars, light trucks, and SUVs that rely on a conventional vapor‑compression air‑conditioning cycle. Whether the vehicle is undergoing a routine service, a major component overhaul, or a retrofit to improve cooling efficiency, the expansion valve serves as a critical control point that maintains system balance and protects downstream components from pressure spikes. Technicians appreciate the straightforward installation process, while vehicle owners benefit from restored cooling performance and reduced energy consumption.

Why Choose Us

Choosing the ACDelco Expansion Valve Kit means selecting a part that carries the legacy of GM Genuine Parts, a brand synonymous with reliability and engineering excellence. ACDelco’s long history of supplying OEM‑approved components ensures that each valve meets the stringent quality criteria set by General Motors, providing peace of mind that the part will perform exactly as the original equipment did. The kit is backed by a comprehensive warranty that covers manufacturing defects, reflecting the confidence the company has in its product durability. In addition to the warranty, ACDelco offers dedicated technical support staffed by engineers familiar with automotive HVAC systems, ready to assist with installation queries, troubleshooting, and performance optimization. This level of after‑sales service distinguishes the brand from generic aftermarket alternatives that may lack consistent quality control. Moreover, the expansion valve’s metal construction and machined finish contribute to a longer service life, reducing the frequency of replacements and minimizing total ownership cost. By investing in a genuine part, customers also help preserve the resale value of their vehicles, as OEM components are often a factor in appraisal assessments. The combination of brand reputation, rigorous testing, warranty coverage, and responsive support creates a compelling value proposition for both professional service centers and independent car owners.

Key Features

• Durable metal construction with a precision‑machined finish that resists corrosion and extends service life.
• Dual‑port design with NPT connections provides a secure, leak‑free seal for reliable refrigerant flow.
• OEM‑approved part number ensures a perfect fit for GM vehicles that use the 15‑51325 specification.
• Compact dimensions and lightweight design allow easy installation in tight engine bays without additional adapters.
• Comes with a detailed installation guide and backed by ACDelco technical support for hassle‑free setup.

FAQ

What vehicles are compatible with this expansion valve?

The valve is designed for GM‑based models that specify the 15‑51325 part number. It fits a broad range of cars, trucks, and SUVs that use the GM OEM standard for air‑conditioning systems.

Can I install the valve myself, or do I need a professional?

While professional installation is recommended for optimal results, the kit includes a step‑by‑step guide and all necessary hardware, making it feasible for experienced DIY enthusiasts with basic HVAC knowledge.

What warranty does ACDelco provide for this product?

ACDelco offers a limited warranty covering manufacturing defects, typically ranging from one to two years, and provides access to technical support for any installation or performance questions.

How does this valve improve my vehicle’s AC performance?

By precisely regulating refrigerant flow, the valve prevents over‑cooling, maintains consistent cabin temperature, and protects the compressor from pressure spikes, resulting in more efficient and reliable cooling.

Is the valve compatible with aftermarket refrigerants?

The valve works with standard automotive refrigerants such as R‑134a. For alternative refrigerants, consult the vehicle’s service manual or a qualified technician to ensure compatibility.