Autolite APP5325 Spark Plug

Autolite Double Platinum Spark Plug APP5325

Autolite APP5325 is a Double Platinum spark plug built for OE-style replacement performance in a wide range of import and domestic applications. It uses platinum on both the center and ground electrodes for consistent firing, easier starts, quicker throttle response, and improved fuel efficiency.

With a 14 mm thread diameter, 1.000 inch reach, flat seat, 5/8 inch hex, and a 0.044 inch pre-gap, this spark plug is a direct service option for many vehicles including Toyota Camry, Lexus ES350, Volkswagen GTI, and Audi Q5 applications.

Key Features

• Double platinum firing design for longer service life and stable spark delivery
• OE-style form, fit, and function for many foreign and domestic vehicles
• Pre-gapped at 0.044 inch (1.10 mm)
• Resistor spark plug with 4,000 ohm resistance
• Ceramic insulator with mid-projection design
• 14.0 mm thread diameter, 1.000 inch reach, flat seat, 5/8 inch hex
• Platinum center and ground electrode tip materials

Product Details

The Autolite Double Platinum Spark Plug line is engineered for drivers who want OE replacement performance with platinum-to-platinum firing. That design helps maintain consistent ignition performance over time and supports smoother starts and acceleration. APP5325 is a strong match for many late-model vehicles that specify a 0.044 inch gap, including Toyota 4Runner, Lexus RX350, and Volkswagen Atlas applications. This part cross-references Autolite 1116 and Anchor 3381 for the same application.

Common Issues This Part Can Help Address

• Hard starting or extended crank time
• Rough idle caused by worn spark plugs
• Reduced throttle response during acceleration
• Declining fuel economy from aged ignition components
• Misfire concerns related to worn electrode surfaces

Installation Notes and Tips

Verify engine-specific fitment before installation, since some applications require special gap settings or two plugs per cylinder. Confirm the vehicle’s OE gap specification and compare it to the plug’s preset 0.044 inch gap before use. For best results, install on a cool engine and torque to the manufacturer’s specification. Compatible With 2022-2026 Dodge Durango, 2022-2025 Lexus ES350, 2015-2025 Volkswagen GTI, 2018-2024 Volkswagen Atlas, and many other listed applications.

Quality Assurance

Autolite supplies ignition products to the automotive aftermarket and original equipment manufacturers, with OE-style replacement coverage across many makes and models. APP5325 is built to match the form, fit, and function expected for service replacement use.