Autowxjq Iridium Spark Plug 16‑Pack for Chrysler Dodge Jeep Ram V8 (4.7L/5.7L/6.4L) — Pre‑Gapped, Long‑Life

Autowxjq Iridium Spark Plug 16-piece set is a direct-fit replacement for Chrysler, Dodge and Jeep V8 engines (4.7L, 5.7L, 6.4L), pre-gapped and ready for bolt-in installation.

These Autowxjq iridium spark plugs are engineered to match OE form and fit for many Chrysler, Dodge, Jeep and Ram V8 applications. Built with a high-melting-point iridium tip and a precision core, the plugs are pre-gapped to the listed specification so you can install them without additional adjustment. The kit includes 16 plugs — ideal for engines that require a full set — and lists several cross-reference part numbers to help confirm compatibility with your vehicle.

How do these plugs fit my Chrysler/Dodge/Jeep/Ram V8?

Autowxjq designed this 16-pack to replace factory spark plugs used in a number of Chrysler Group V8 engines. Check your vehicle’s engine displacement and existing plug reach and hex size to confirm fit. The listing cross-references common part numbers, making it easier to verify compatibility before purchase.

• Compatible with 4.7L, 5.7L and 6.4L V8 applications
• Replaceable part numbers: BY481LFR5A, MZ602090, 4469, XP5325 and others
• Thread diameter 14 mm and reach 26.5 mm match many OE specs
• 5/8-inch hex for standard spark plug sockets

What performance features does an iridium tip provide?

Iridium is used on the center electrode for its high melting point and durability under high heat, which helps preserve the electrode profile over longer service intervals. That stable electrode geometry can support more consistent spark characteristics compared with softer metals. While results vary by driving style and engine condition, iridium tips are commonly chosen for longevity and sustained ignition reliability.

• Center electrode tip and core made of iridium for heat resistance
• High-resistance 5000-ohm suppressor for electrical noise control
• Designed to withstand thermal and electrical wear in modern engines

Are these plugs ready to install and what are the installation tips?

Yes — the Autowxjq plugs come pre-gapped to the specified value so they can be installed directly in most cases. Always double-check the gap against your vehicle manufacturer’s spec before installation. Use the correct torque and a 5/8-inch socket, and replace boots or coil-on-plug seals as needed to maintain proper connection and prevent misfires.

• Pre-gapped for convenience; verify gap before final installation
• Use 5/8-inch hex socket and torque to vehicle manufacturer spec
• Inspect ignition boots and seals during replacement to avoid leaks

What are the technical specifications and warranty details?

The kit includes technical details to match OE requirements: 14 mm thread diameter, 26.5 mm reach, 55 mm insulator height, and a 5/8-inch hex size. The plugs include a 5000-ohm resistor to reduce radio frequency interference. Autowxjq backs these plugs with a two-year warranty and offers free replacement within that period for eligible defects.

• Thread diameter: 14 mm; reach: 26.5 mm; insulator height: 55 mm
• Hex size: 5/8 inch; internal resistance: 5000 ohms
• 2-year warranty with free replacement for qualifying issues

Who is this for: This 16-piece Autowxjq iridium spark plug set is aimed at owners and technicians who need a full-set replacement for Chrysler, Dodge, Jeep or Ram V8 engines (4.7L, 5.7L, 6.4L). It’s useful for fleet maintenance, performance-minded drivers who prefer iridium tips for durability, and DIY mechanics who want pre-gapped, ready-to-install plugs that match common OEM dimensions and cross-reference numbers.