Autowxjq Iridium Spark Plugs 16pcs — Pre-Gapped Replacement for Chrysler Dodge Jeep Ram V8 (4.7L/5.7L/6.4L)

Autowxjq Iridium Spark Plug 16pcs is a direct-fit, pre-gapped iridium electrode set designed to replace factory plugs on Chrysler, Dodge, Jeep and Ram V8 engines (4.7L, 5.7L, 6.4L).

This 16-piece kit supplies every cylinder with a high-melting-point iridium center electrode and robust construction engineered for modern performance engines. Each plug ships pre-gapped for convenient installation and matches common OEM part numbers for a straightforward swap. The plugs are specified with a 14 mm thread diameter, 26.5 mm reach, 55 mm insulator height and a 5/8-inch hex to fit typical V8 service tools.

Will these Autowxjq plugs fit my Chrysler, Dodge, Jeep or Ram V8?

These spark plugs are sold as compatible replacements for many factory part numbers used across several V8 engines. Confirm thread size, reach and hex size against your vehicle’s service manual before purchase to ensure an exact match.

• Replaces BY481LFR5A, MZ602090, 4469, XP5325 and similar OEM numbers
• Thread diameter: 14 mm; reach: 26.5 mm; insulator height: 55 mm
• Hex size: 5/8 inch — fits standard spark plug sockets

How do Autowxjq Iridium plugs benefit engine performance?

Iridium center electrodes use a higher melting-point metal that resists wear and maintains a consistent spark gap longer than conventional alloys. While not a performance guarantee, the design supports stable ignition and predictable combustion behavior across a range of driving conditions.

• Iridium tip and core for prolonged electrode life and stable firing
• 5000 ohm resistance to suppress radio interference in ignition systems
• Pre-gapped to manufacturer-style settings for reliable initial operation

What should I expect during installation and maintenance?

Each plug arrives pre-gapped, so you can install them right away, but you should still check the gap with a feeler gauge and use a torque wrench to the vehicle maker’s specified setting. Inspect the old plugs and ignition components for signs of wear to ensure the new plugs perform as intended.

• Pre-gapped for quick install; always verify gap before final torquing
• Use anti-seize sparingly if recommended by vehicle manufacturer
• Replace in sets and check ignition coils or wires during service

What warranty and quality details come with this 16-piece kit?

The Autowxjq kit includes a two-year warranty covering manufacturing defects with free replacement service. Specifications listed by the manufacturer help technicians verify fitment and electrical characteristics prior to installation.

• 2-year warranty with free replacement for qualifying defects
• Specified resistance: 5000 ohms; ideal hex and thread specs listed
• Center electrode material: iridium for durability

Who is this for: This 16-piece Autowxjq iridium spark plug set is intended for DIY mechanics, fleet service shops and enthusiast owners of Chrysler, Dodge, Jeep and Ram V8 vehicles that require 14 mm, 26.5 mm reach plugs. Choose this kit when you want pre-gapped iridium electrodes that match common OEM numbers and come with a two-year warranty; always verify your engine’s exact plug specifications before ordering.