Dorman 918-177 Engine Variable Valve Timing (VVT) Solenoid - Intake

Overview of Dorman 918-177 Engine Variable Valve Timing Solenoid

The Dorman 918-177 Engine Variable Valve Timing (VVT) Solenoid is designed to optimize engine performance for select Mazda Miata models. This 12-volt solenoid features a silver zinc-plated finish and durable plastic housing, ensuring reliable operation in variable valve timing systems.

• Voltage: 12V for standard automotive electrical systems
• Color/Finish: Silver zinc-plated with stainless steel solenoid finish
• Housing Material: Durable plastic construction
• Connector Type: Plug and socket with one male connector
• Terminal Type and Quantity: Two terminals (pin and clavija), female terminal gender
• Dimensions: Overall height 4.2 inches, width 2.8 inches, shaft diameter 0.7 inches
• Wire Quantity: Two wires for secure electrical connection
• Compatible with Mazda Miata models requiring VVT solenoid replacement

Detailed Product Description

The Dorman 918-177 VVT solenoid is engineered as a standard replacement part to maintain proper variable valve timing function in compatible Mazda Miata engines. Its silver zinc-plated finish and stainless steel solenoid components provide corrosion resistance, while the plastic housing offers lightweight durability. The solenoid’s plug and socket electrical connector with two terminals ensures a secure and reliable connection to the vehicle’s wiring harness. Measuring 4.2 inches in height and 2.8 inches in width, this solenoid fits precisely within the engine assembly, supporting optimal valve timing adjustments for improved engine efficiency.

Common Applications and Issues Addressed

• Restores proper variable valve timing control in Mazda Miata engines
• Resolves engine performance issues related to faulty VVT solenoids
• Eliminates rough idling and poor acceleration caused by solenoid failure
• Helps reduce engine noise and improve fuel efficiency
• Prevents check engine light triggers related to VVT system faults

Installation Notes and Tips

• Ensure vehicle ignition is off and engine is cool before installation
• Disconnect the battery to avoid electrical shorts during replacement
• Locate the existing VVT solenoid on the engine and disconnect the electrical connector
• Remove mounting bolts and carefully extract the old solenoid
• Install the Dorman 918-177 solenoid, secure mounting bolts, and reconnect the electrical plug
• Verify proper installation by starting the engine and checking for error codes

Quality Assurance and Warranty

Dorman manufactures the 918-177 VVT solenoid to meet or exceed OEM standards for fit, form, and function. This part is a standard replacement grade component designed for reliable performance in Mazda Miata vehicles. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship to ensure customer confidence in product durability.