A-Premium Iridium Platinum Spark Plugs Pack of 8 - Durable Fit

In this review the A-Premium Iridium Platinum Spark Plugs (pack of 8) are examined for drivers who maintain Ford V8 engines from model years listed in the fitment. The bottom line is straightforward: these plugs are for owners seeking long-life ignition parts with precise electrode materials and OEM-style dimensions. Our review finds them most valuable for routine maintenance on F-150, F-250/F-350 Super Duty, Mustang and E-Series trucks where durability and correct gap specification matter.

Key Features

• Iridium center tip: Provides a durable, high-temperature contact that helps maintain consistent ignition performance over long service intervals.
• Platinum core: Reinforces the electrode for longevity and reduced wear compared with standard copper plugs.
• Exact fitment specs: Thread diameter, reach and hex size match common Ford V8 applications so installation is straightforward and reliable.
• Dual gap options: Available gap sizes of 0.044 in and 0.052 in match factory recommendations for the listed engines to preserve timing and combustion efficiency.
• High resistance rating: The 5000 ohm resistance helps suppress radio interference while maintaining reliable spark delivery.

Who It's For

This pack suits owners or independent mechanics who service Ford V8 engines including F-150 5.0L, F-150 6.2L, F-250/F-350 Super Duty 6.2L (dual plug systems) and Mustang 5.0L/5.2L models across the covered years. It is also a practical choice for fleet vehicles such as E-350 and E-450 Super Duty models that require matched plug sets and predictable replacement intervals.

Shoppers who need exact factory-style replacement parts and who plan to follow the longer 80,000 to 100,000 mile replacement guidance will find value here. Those who want plug options for nonlisted engines or who require OEM-brand warranty coverage should consider other branded OEM alternatives.

Pros & Cons

Pros

• Durable iridium tip combined with a platinum core delivers extended service life and stable ignition.
• Fits a range of Ford V8 applications with correct gap sizes of 0.044 in and 0.052 in for matched performance.
• Designed with a 5/8 in hex and 14 mm thread diameter for standard wrench fit and straightforward installation.

Cons

• Some users report mixed feedback on functionality, so outcomes can vary depending on engine condition and installation quality.

Specifications

Center Electrode Tip Material	Iridium
Center Electrode Core Material	Platinum
Resistance (ohms)	5000
Gap Size	0.044 in / 0.052 in
Hex Size	5/8 in
Reach	17.98 mm
Thread Diameter	14.00 mm

Our Verdict

The A-Premium Iridium Platinum spark plugs are a sensible, value-focused replacement for the Ford V8 models listed, offering durable materials, correct fitment and radio interference suppression. For owners wanting long service intervals and predictable installation dimensions, this pack of 8 is a practical choice; those seeking manufacturer OEM branding or who experience inconsistent results should verify gap and installation practices before purchase.

Frequently Asked Questions

Are these plugs compatible with dual-plug Super Duty engines?
Yes; the listing notes compatibility with 6.2L Super Duty dual-plug engines where 16 plugs are required overall, and these come as a pack of 8.

What gap should be used for F-150 5.0L and Mustang 5.0L?
For the 5.0L V8 applications the recommended gap noted in the fitment is 0.052 in.

How long do these plugs typically last?
They are engineered with iridium and platinum for longevity and are recommended for replacement at roughly 80,000 to 100,000 miles under normal conditions.