Four Seasons 38812 A/C Expansion Valve - Rear

Reliable A/C Expansion Valve for Ford, Lincoln, Mercury, and Nissan

The Four Seasons Expansion Valve 38812 is engineered to regulate refrigerant flow in your vehicle's air conditioning system. Designed specifically for select Ford, Lincoln, Mercury, and Nissan models, this aluminum block-type valve ensures precise temperature control and system efficiency.

• Constructed from durable aluminum material
• Compatible with R134a refrigerant systems
• Block type design with 2 mounting holes for secure installation
• Female suction and liquid inlet/outlet fittings with standardized thread sizes
• Includes green O-rings [24606] and [24608] for leak-free sealing
• Meets or exceeds OEM specifications for reliable performance

About the Four Seasons Expansion Valve Product Line

The Expansion Valve line by Four Seasons focuses on delivering precise refrigerant flow control components for automotive HVAC systems. This product line emphasizes OEM compatibility and material quality, such as aluminum construction and proper fitting configurations, to maintain optimal air conditioning performance in vehicles like the Ford Expedition, Lincoln Navigator, Mercury Villager, Nissan Quest, and Ford Windstar.

Detailed Product Description

The Four Seasons Expansion Valve 38812 is a block-type A/C flow restrictor made from aluminum, designed for use with R134a refrigerant. It features two mounting holes for secure attachment and female suction inlet and outlet fittings with No. 10 thread diameters (7/8" - 18 thread type). The liquid inlet and outlet fittings are also female, with No. 6 and No. 8 thread diameters respectively, using O-ring seals to prevent leaks. The liquid inlet size measures 0.520 inches (13.2 mm), while the liquid outlet size is 0.64 inches (16.2 mm). This valve is engineered to meet or exceed OEM standards, ensuring compatibility and durability in your vehicle's HVAC system.

Common Issues Addressed by This Expansion Valve

• Inconsistent cabin temperature due to faulty refrigerant flow
• Reduced A/C cooling efficiency in Ford Expedition or Lincoln Navigator
• Leaks or pressure drops caused by worn or damaged expansion valves
• System contamination from improper sealing or fitting failures
• Replacement for OEM valves in Nissan Quest, Mercury Villager, and Ford Windstar models

Installation Notes and Tips

• Ensure system is fully evacuated and depressurized before removal
• Verify thread sizes and fitting types match vehicle specifications
• Replace O-rings with those provided to maintain proper sealing
• Use proper torque on mounting bolts to avoid damage
• Test A/C system for leaks and proper operation after installation

Quality Assurance and Warranty

The Four Seasons Expansion Valve 38812 is manufactured to meet or exceed OEM quality standards. It includes factory-installed green O-rings for reliable sealing and is constructed from corrosion-resistant aluminum. This part is backed by Four Seasons' quality assurance protocols to ensure consistent performance and durability in compatible Ford, Lincoln, Mercury, and Nissan vehicles.