Air Conditioning Orifice Tube Four Seasons 38638 Machined Specific

Description

Product Overview

The Four Seasons 38638 air conditioning orifice tube is a precision‑engineered component designed to replace the original equipment part in a wide variety of automotive cooling systems. Manufactured by Four Seasons, a reputable brand known for durable automotive accessories, this orifice tube meets or exceeds OE design and performance standards. The tube features a machined metal exterior that provides a smooth, corrosion‑resistant surface, ensuring reliable operation even in harsh environments. With a compact size of 0.8 x 2 x 4.8 inches and a lightweight of just 0.211 ounces, it fits discreetly within the air conditioning system without adding unnecessary bulk. The part number 38638 is stamped on the tube for easy identification, and the ASIN B000C2QNZC links to the official product listing for reference.

Designed to be vehicle specific, the orifice tube aligns perfectly with the existing hose and connector geometry, eliminating the need for additional adapters or modifications. The machined interior passage is calibrated to the exact flow rate required by the original system, which helps maintain optimal refrigerant pressure and temperature control. This precise engineering reduces the risk of over‑pressurization, which can lead to compressor damage or reduced cooling efficiency. The tube’s durable construction also resists wear from vibration and thermal cycling, extending the service life of the entire air conditioning assembly.

Usage

This orifice tube is intended for use in standard automotive air conditioning systems that rely on a fixed‑orifice design to regulate refrigerant flow. It is suitable for both domestic and import vehicles that fall within the vehicle‑specific fit list provided by Four Seasons. Typical installation scenarios include routine AC system maintenance, replacement of a failed orifice tube, or upgrades during a complete AC overhaul. The part performs best when installed in a clean, dry environment, and it is compatible with a range of refrigerants commonly used in modern vehicles, including R‑134a and newer low‑global‑warming‑potential blends.

When installing the tube, technicians should first evacuate the system to remove any residual refrigerant, then disconnect the existing orifice tube and replace it with the Four Seasons 38638 model. The precise fit ensures a leak‑free seal, and the machined exterior helps the connector latch securely. After installation, the system should be recharged according to the manufacturer’s specifications, and a leak test should be performed to confirm proper operation. The result is a cooling system that delivers consistent cabin comfort, even in extreme temperature conditions.

Why Choose Us

Choosing the Four Seasons 38638 orifice tube means selecting a product that combines rigorous quality control with practical design features. Each tube undergoes a multi‑stage inspection process, including dimensional verification, material hardness testing, and flow rate calibration, to guarantee that it meets the exact standards required for reliable AC performance. The brand’s commitment to customer satisfaction is reflected in a 4.6‑star rating from over 350 verified buyers, indicating a high level of confidence in the product’s durability and fit. Additionally, Four Seasons offers responsive after‑sales support, providing technical assistance and warranty coverage for any issues that arise within the specified period.

Beyond the technical specifications, the Four Seasons orifice tube delivers tangible benefits to vehicle owners. By maintaining proper refrigerant flow, it helps the AC compressor operate more efficiently, which can translate into reduced fuel consumption and lower engine wear. The robust machined construction also minimizes the likelihood of premature failure, reducing the need for frequent replacements and associated labor costs. For fleet operators and individual drivers alike, this translates into long‑term savings and a more comfortable driving experience.

Key Features

• Precision‑machined metal design ensures exact OEM flow rate for optimal cooling performance.
• Vehicle‑specific fit eliminates the need for adapters, providing a secure, leak‑free installation.
• Durable construction resists corrosion, vibration, and thermal cycling for extended service life.
• Lightweight and compact dimensions allow easy integration into tight engine compartments.
• Four Seasons customer support offers technical assistance and warranty coverage for peace of mind.

FAQ

What vehicles are compatible with the Four Seasons 38638 orifice tube?

The 38638 model is designed to fit a broad range of passenger cars and light trucks that use a standard orifice tube in their air conditioning system. Compatibility lists are provided on the Four Seasons website and can be cross‑referenced with your vehicle’s make, model, and year to ensure a proper match.

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

While the installation process is straightforward for experienced DIY enthusiasts, it does require proper system evacuation, refrigerant handling, and a leak test. If you are not comfortable with these procedures, it is recommended to have a qualified automotive technician perform the replacement to guarantee safety and performance.

How does the machined metal construction improve performance compared to plastic alternatives?

Machined metal provides a more accurate and stable flow passage, which maintains consistent refrigerant pressure. Unlike plastic, metal does not deform under heat, ensuring the orifice size remains unchanged over time. This stability leads to better cooling efficiency and longer component lifespan.

What warranty does Four Seasons offer on this orifice tube?

Four Seasons provides a limited warranty that covers manufacturing defects for a period of one year from the date of purchase. The warranty includes replacement of the part and, if necessary, technical support to assist with installation issues.

Is this part compatible with newer low‑GWP refrigerants?

Yes, the Four Seasons 38638 orifice tube is compatible with both traditional R‑134a refrigerant and newer low‑global‑warming‑potential (GWP) blends that are increasingly used in modern vehicles. Always follow the vehicle manufacturer’s recommendations when selecting refrigerant type.