WAI 31257N Starter

Reliable Starter for Infiniti and Mercedes-Benz Vehicles

The WAI 31257N starter is designed to provide dependable engine starting performance for select Infiniti and Mercedes-Benz models. Featuring a permanent magnet gear reduction design, this starter ensures efficient power delivery and smooth operation for your vehicle.

• Permanent magnet gear reduction design for improved efficiency
• Power rating of 1.7 kW for consistent starting power
• Clockwise (right) starter rotation compatible with specific vehicle applications
• 13-tooth pinion gear for precise engagement
• Flange mounting type for secure installation

Technical Details and Compatibility

This WAI starter, part number 31257N, belongs to the Denso family of starters, known for their reliable engineering and compatibility with various automotive applications. The 12-volt starter features a 1.7 kW power rating, making it suitable for the electrical demands of modern vehicles. Its permanent magnet gear reduction design helps reduce weight and improve torque output, which is essential for smooth engine cranking.

The starter rotates clockwise (right), matching the specifications required by the listed Infiniti and Mercedes-Benz models. With 13 teeth on the pinion gear and a flange mounting type, this starter ensures proper fit and function when replacing the original equipment.

Compatible Infiniti and Mercedes-Benz Models

This starter is compatible with a range of Infiniti and Mercedes-Benz vehicles, including:

• Infiniti Q50 and Q60
• Mercedes-Benz C300, C350e, E300
• Mercedes-Benz GLC300, GLC350e
• Mercedes-Benz SLC300, SLK300
• Mercedes-Benz Metris
• Mercedes-Benz Sprinter 1500 and 2500

Common Issues Addressed by the WAI 31257N Starter

• Failure to start or slow engine cranking
• Intermittent starting problems
• Grinding noises during engine start
• Starter motor overheating or electrical faults
• Wear or damage to original starter components

Installation Notes and Tips

When installing the WAI 31257N starter, ensure the vehicle battery is fully charged and disconnected to prevent electrical shorts. Verify the clockwise rotation and flange mounting compatibility with your specific Infiniti or Mercedes-Benz model. Proper torque specifications should be followed to secure the starter and avoid misalignment. It is recommended to inspect related components such as the flywheel teeth and electrical connections during installation.

Quality Assurance and Warranty

WAI starters are manufactured to meet industry standards for durability and performance. While specific warranty details for part number 31257N are not provided here, WAI products typically come with a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.