Autolite XP5325 Spark Plug

Autolite Iridium XP Spark Plug XP5325

Autolite XP5325 is an iridium spark plug built for stable ignition performance, cleaner combustion, and long service life in a wide range of import and domestic applications. The fine-wire iridium center electrode and platinum ground electrode are engineered for durability, while the tapered ground wire supports efficient flame travel and consistent ignitability.

Compatible With vehicles such as Volkswagen Jetta, Audi Q5, Lexus ES350, and Toyota Camry, this plug is a direct-fit option for many OE-style ignition service jobs. The Autolite Iridium Spark Plug line focuses on dependable secondary ignition performance with OE-style dimensions and performance-oriented electrode design.

Key Features

• Iridium fine-wire center electrode for precise spark delivery
• Platinum ground electrode for added durability
• Taper-cut ground electrode tip design for efficient combustion
• Resistor design with 4,000 ohms resistance
• Ceramic insulator and copper core center electrode
• Flat seat, M14 x 1.25 thread, 5/8 hex
• Performance-grade spark plug for OE-style replacement service

Product Details

Autolite XP5325 is designed around an iridium-enhanced fine-wire center electrode and a proprietary platinum ground electrode to maintain consistent spark quality under demanding operating conditions. The mid-projection, ceramic-insulated construction and non-removable nut terminal support reliable fitment in applications that call for this plug specification. This part number is used across a broad range of vehicles, including Volkswagen GTI, Audi S3, Lexus RX350, and Toyota Tacoma applications listed in the fitment data.

This part cross-references Bosch 96300 and Champion Spark Plug 9033 for the same application.

What It Helps Address

• Hard starting caused by worn or weakened spark plugs
• Rough idle from inconsistent ignition firing
• Misfire conditions related to electrode wear
• Reduced throttle response from degraded spark quality
• Fuel economy loss tied to inefficient combustion

Installation Notes

Verify thread size, seat type, heat range, and gap specification against the vehicle service information before installation. This plug uses a flat seat and M14 x 1.25 thread, so correct torque and clean cylinder-head threads are important for sealing and heat transfer. For vehicles noted in the fitment data with special requirements, follow the application notes exactly, including models that specify OE-style iridium plug service or dual-plug cylinder arrangements.

Fits 2013-2026 Volkswagen Jetta, N/A; Fits 2015-2025 Volkswagen GTI, N/A; Fits 2018-2024 Volkswagen Atlas, N/A; Fits 2020-2025 Audi Q5 PHEV, N/A; Fits 2022-2025 Lexus ES350, N/A; Fits 2022-2024 Toyota Camry, N/A.

Quality Assurance

Autolite designs the Iridium XP line for durability and consistent ignition performance in everyday driving and performance-oriented service applications. XP5325 is built to OE-style dimensional standards for the listed applications and uses iridium and platinum electrode materials to support long-term service life.