Fel-Pro 35404 Engine Coolant Thermostat O-Ring

Reliable Engine Coolant Thermostat O-Ring for Ford and Mazda Vehicles

The Fel-Pro 35404 Engine Coolant Thermostat O-Ring is designed to provide a secure seal in your vehicle's cooling system. Engineered as a premium-grade O-ring, it ensures proper thermostat function and prevents coolant leaks in select Ford and Mazda models.

• Premium grade material for durability and heat resistance
• Specifically designed as an engine coolant thermostat O-ring
• Compatible with Ford Aerostar, B4000, Bronco II, Escape, Explorer, Focus, Ranger, Tribute
• Also fits Mazda Navajo models
• Part number 35404 for precise identification and replacement

Product Details and Specifications

This Fel-Pro 35404 O-ring is manufactured to meet strict quality standards, ensuring a tight seal around the engine coolant thermostat housing. Its premium grade construction helps maintain system integrity under high temperature and pressure conditions common in automotive cooling systems. The O-ring is a critical component that prevents coolant leaks, which can lead to engine overheating or inefficient temperature regulation.

Compatible Vehicles and Applications

This engine coolant thermostat O-ring is compatible with a range of Ford and Mazda vehicles, including the Ford Aerostar, B4000, Bronco II, Escape, Explorer, Focus, Ranger, Tribute, and the Mazda Navajo. Using the correct O-ring like the Fel-Pro 35404 ensures proper fitment and reliable sealing performance in these models.

• Prevents coolant leaks around the thermostat housing
• Helps maintain optimal engine temperature regulation
• Reduces risk of engine overheating due to seal failure
• Supports efficient coolant flow within the cooling system

Installation Notes and Tips

When installing the Fel-Pro 35404 O-ring, ensure the thermostat housing and surrounding surfaces are clean and free of debris. Lubricate the O-ring lightly with coolant or a compatible lubricant to ease installation and prevent damage. Verify proper seating of the O-ring to avoid leaks. Follow vehicle-specific service manual instructions for thermostat removal and installation.

Quality Assurance and Warranty

Fel-Pro parts are engineered to meet or exceed OEM specifications. The 35404 Engine Coolant Thermostat O-Ring undergoes rigorous quality control to ensure consistent performance and durability. While specific warranty details may vary, Fel-Pro products typically come with a limited warranty against defects in material and workmanship.