ACDelco 41-993 Professional Iridium Spark Plugs are a top-of-the-line choice for most vehicle models. These plugs are manufactured to meet rigorous quality requirements and ensure excellent fuel economy and smooth performance.

Key Features

  • Iridium construction
  • One-piece suppressor seal
  • Reduces Radio Frequency Interference (RFI)

Features and Specs for Each Model

  • Thread size: 14mm
  • Thread Pitch: 1.25mm
  • Hex size: 5/8″ (16mm)

Pros

  • Reliable performance
  • Reduces engine knocking
  • Great fuel efficiency

Cons

  • It may not be compatible with all vehicle models

Amazon Customer Review

★★★★★ “These plugs made my old car run like new again! Great performance and fuel economy!” – Sarah W.

Conclusion

If you’re looking for a durable and efficient spark plug, ACDelco 41-993 is an excellent choice. Though compatibility may be an issue for some, its performance makes it worth considering.

NGK Spark Plug Standard BPR5ES - Pack of 2
4.8 out of 5 stars(432)
$9.00 (as of May 11, 2024 02:26 GMT -05:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Item Category: Spark Plug Item Trademark: Ngk Manu... read more
Autolite Iridium XP Automotive Replacement Spark P...
4.6 out of 5 stars(953)
Available for Amazon Prime 29% Off $35.16 $24.95 (as of May 11, 2024 02:26 GMT -05:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
EXTENDED CHANGE INTERVAL: The Autolite Iridium XP ... read more
NGK 7090 G-Power Platinum Spark Plugs BKR5EGP - 6 ...
4.7 out of 5 stars(4396)
Available for Amazon Prime $22.79 (as of May 11, 2024 02:26 GMT -05:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Trapezoid cut ground electrode reduces quenching T... read more
(Pack of 2) Champion Spark Plugs for John Deere M7...
4.8 out of 5 stars(445)
Available for Amazon Prime $8.19 (as of May 11, 2024 05:05 GMT -05:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Genuine OEM (Pack of 2) Champion Spark Plugs for J... read more