Stant 13948 Engine Coolant Thermostat

Reliable Engine Cooling with Stant OE Type Thermostat 13948

The Stant OE Type Thermostat 13948 is engineered to maintain optimal engine temperature for select INFINITI, Mercury, and Nissan vehicles. Designed with precise dimensions and a 180-degree Fahrenheit temperature rating, this thermostat ensures consistent coolant flow and engine protection.

• Bypass Plate Diameter: 0.925 inches for accurate coolant regulation
• Flange Diameter (Without Seal): 2.52 inches for secure fitment
• Height from Flange to Bottom: 1.91 inches for proper housing alignment
• Height from Flange to Top of Bridge: 0.7 inches ensuring correct installation depth
• Temperature Rating: 180 degrees Fahrenheit for reliable engine temperature control
• Freight Class: 70

About the Stant OE Type Thermostat Product Line

The OE Type Thermostat line by Stant is designed to meet original equipment specifications, providing a direct replacement for factory-installed thermostats. This product line focuses on precise temperature control and durability, making it suitable for maintaining engine performance and efficiency in vehicles like the Nissan 300ZX and INFINITI QX4.

Detailed Product Description

The Stant 13948 engine coolant thermostat is crafted to regulate coolant flow by opening at 180 degrees Fahrenheit, helping prevent engine overheating and promoting efficient warm-up. Its 0.925-inch bypass plate diameter allows controlled coolant circulation when the thermostat is closed, reducing thermal shock. The 2.52-inch flange diameter without seal and specific height measurements ensure compatibility with thermostat housings on models such as the Nissan Pathfinder, Mercury Villager, and INFINITI M30. This thermostat supports consistent engine temperature management, which is critical for engine longevity and performance.

Compatible Vehicles and Common Applications

• INFINITI models: J30, M30, QX4
• Mercury models: Villager, Mountaineer (if applicable)
• Nissan models: 200SX, 300ZX, D21, Frontier, Maxima, Pathfinder, Pickup, Quest, Xterra
• Helps resolve engine overheating issues
• Prevents poor heater performance due to thermostat failure
• Addresses irregular engine temperature fluctuations
• Supports efficient engine warm-up times

Installation Notes and Tips

Ensure the engine is cool before removing the old thermostat to avoid injury. Verify the thermostat housing matches the flange diameter of 2.52 inches for proper fit. Install the thermostat with the bypass plate oriented correctly to maintain coolant flow. Replace any gaskets or seals as needed to prevent leaks. Proper installation will help maintain the 180-degree temperature regulation designed for your vehicle.

Quality Assurance and Warranty

Stant OE Type Thermostats are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. While specific warranty details for part number 13948 are not provided here, Stant products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.