Dorman 54370 Engine Coolant Reservoir Cap

Reliable Engine Coolant Reservoir Cap for Acura and Honda Vehicles

The Dorman 54370 engine coolant reservoir cap is designed to maintain proper pressure and seal your vehicle's cooling system. Compatible with a wide range of Acura and Honda models, this cap ensures a secure fit and helps prevent coolant leaks.

• Constructed from durable plastic and rubber materials for long-lasting performance
• Threaded-on attachment type with a twist design for easy installation
• Measures 1.55 inches in diameter, 1.94 inches in width, and 8.5 inches in length
• Maximum pressure rating of 20 psi to maintain optimal cooling system pressure
• Available in black and yellow color options for clear identification
• Non-vented and non-pressurized design without a pressure release lever

Product Details and Specifications

The Dorman 54370 engine coolant reservoir cap is engineered with a combination of plastic and rubber materials to provide a reliable seal on the coolant tank. Its threaded-on, twist-type attachment ensures a secure fit on compatible Acura and Honda models, including the Accord, Civic, CR-V, Pilot, and more. The cap's 1.55-inch diameter and 20 psi maximum pressure rating help maintain the correct pressure within the cooling system, preventing overheating and coolant loss. The cap is designed without venting or pressurization features, making it suitable for specific cooling system configurations that require a sealed reservoir cap.

Compatible Acura and Honda Models

• Acura: CL, MDX, RL, RLX, RDX, TL, TSX, ZDX, Legend, Integra, S2000
• Honda: Accord, Accord Crosstour, Civic, Civic del Sol, CR-V, Crosstour, CRX, Element, Fit, Insight, Odyssey, Pilot, Prelude, Ridgeline

Common Issues Addressed by This Coolant Reservoir Cap

• Prevents coolant leaks caused by worn or damaged reservoir caps
• Maintains proper cooling system pressure to avoid engine overheating
• Eliminates coolant contamination by providing a secure seal
• Helps prevent air from entering the cooling system
• Replaces missing or broken caps to restore system integrity

Installation Notes and Tips

• Ensure the engine is cool before removing the old coolant reservoir cap
• Clean the reservoir neck to remove debris or residue before installation
• Thread the Dorman 54370 cap on firmly but avoid over-tightening
• Check for leaks after installation by running the engine and inspecting the cap area
• Refer to the vehicle’s service manual for specific torque specifications if available

Quality Assurance and Warranty Information

Dorman manufactures the 54370 engine coolant reservoir cap to meet or exceed OEM standards for fit, form, and function. The materials used provide durability and resistance to heat and pressure typical in automotive cooling systems. While specific warranty details are not provided, Dorman products generally come with a limited warranty against defects in material and workmanship. For exact warranty terms, consult the product packaging or Dorman’s official resources.