Our Best Picks:
Our Favorite Spark Plugs For Fuel Efficiency Reviews:
Bestseller No. 1 
Micro Traders 2pcs CR8E Spark Plug Motorcycle Spark Plug Replacement Spark Plug 10mm Thread Improved Fuel Efficiency Compatible with SUZUKI YAMAHA BOSCH
- Compatible with SUZUKI 09482-00457, 09482-00456; Compatible with APRILIA 297920; Compatible with HONDA 98059-58817-00, 98059-58916-00, 98059-5881, 98059-58816-H0; Compatible with KAWASAKI 9207 00019, 9207 01169 B, 9207 01169; Compatible with YAMAHA 94701-00330, 94703-00330, 94700-0041, 94701-00411,94703-00329, 94703-00411, 94700-00330; Compatible with KAWASAKI E 9207 01169 B, 9207 01169, 9207 00019; NGK 4854; Compatible with CHAMPION RG94C; Compatible with BOSCH UR2CC, 0242060501.
- This can avoid hot spots that can lead to pre-ignition.
- Solid copper core for greater spark, Longer insulator nose avoid fouling. Corrugated ribs on insulator avoid flash over. Zinc dipped shell avoid corrosion.
- Copper cored electrodes dissipates the heat combustion away from the firing end.
- Easy to replace the old and broken one, improve the engine performance, please check the model you want before place the order.
Bestseller No. 2 
E3 Spark Plugs E3.36 Powersports Spark Plug, Pack of 1
- Fit Type: Universal Fit
- The Patented Diamondfire Ground Electrode Is Secured To The Shell With Two Legs To Help Facilitate Heat Transfer, And To Withstand The Intense Vibration Of Powersport Engine Applications
- Improved Starts: Patented Edge-To-Edge Design Concentrates Spark Energy, Which Results In Quick And Easy Starts In Any Conditions
- For High-Performance Engines: Motorcycle Spark Plug For A Variety Of Powersport Applications, Specifically Designed To Increase Power, Reduce Fuel Consumption, And Improve Hydrocarbon Emissions
Bestseller No. 3 
E3 Spark Plugs E3.108 Premium Racing Spark Plug w/ DiamondFIRE Technology (Pack of 1)
- High performance racing spark plug for a variety of applications, specifically designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions
- E3's patented DiamondFIRE edge-to-edge electrode provides maximum performance with increased efficiency, and a faster more complete burn
- Faster flame propagation initiated by ground electrode results in a more complete burn of the fuel and air mixture for smoother acceleration and idle
- Includes one (1) E3.108 spark plug with a limited lifetime warranty
- Crosses with Autolite AR473, AR474; and Champion 286, 683, S59C, S61C
Bestseller No. 4 
NGK LKAR7BIX-11S Iridium IX Spark Plug (93501 Iridium Ix), 4 Pack
- Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling
- The 0.6 millimeter laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect
- Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage
- Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines
- Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties
SaleBestseller No. 5 
HiVehicle New Iridium Spark Plug OE19299585 41 962 - Specially For Chevrolet, GMC, Cadillac, Buick,Hummer,Oldsmobile,Pontiac,8pcs set.
- 【High quality from high quality material】:Purified alumina powder insulator from Germany ALMATIS(Model:HVA FG Q06) and Full-automatic isopressing;Iron shell(Model:20# 08 AL) and automatic welding/rolling bending;Central electrode Iridium alloy and 360 degree laser welding
- 【Reduce the risk】:HiVehicle Updated design reduce the risk of breaking off during working
- 【Increases Fuel Efficiency】: G-Power Iridium Alloy Spark Plugs offer superior performance with improved fuel efficiency, HiVehicle lower emissions, and quicker starts
- 【Increased conductivity】: Increased conductivity and heat control for good overall. Stability: 0.5mm laser welded fine Iridium tip reduces required voltage ensuring high durability and a consistently stable spark
- 【Durability】:Trivalent Metal Plating offers superior anti corrosion and anti seizing properties while the triple gasket seal eliminates combustion gas leakage
Bestseller No. 6 
NGK Spark Plug, NGK DPR8EA-9, ea, 1
- 98% pure copper core increases heat dissipation for more reliable starts and prevents spark plug from overheating
- High-grade alumina silicate ceramic insulator for superior strength and heat transfer
- Cold-rolled threads to prevent cross-threading and damage to cylinder heads
- Trivalent plating eliminates need for anti-seize and corrugated ribs prevent flashover
- Quantity: 1 per package
SaleBestseller No. 7 
Autolite Iridium XP Automotive Replacement Spark Plugs, XP5702 (4 Pack)
- EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine type making it one of the most durable spark plugs on the market today
- FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption
- OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and optimal performance
- AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plug needs
- CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems and a V-trimmed ground electrode for improved ignitability
Bestseller No. 8 
E3 Spark Plugs E3.22 Lawn and Garden Spark Plug, Pack of 1
- FOR OPTIMAL PERFORMANCE: Spark plug that fits a variety of 4-cycle engines, designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions
- PATENTED TECHNOLOGY: DiamondFIRE features a unique design with an edge-to-edge spark path, which allows replenishment of the spark zone with a fresh fuel/air charge
- INCREASED DURABILITY: Near elimination of performance inhibiting carbon deposits, which dramatically extends the life of the spark plug
- WHAT'S INCLUDED: One (1) E3.22 spark plug with a limited lifetime warranty. Features 14mm thread diameter; 0.750-inch thread reach plug with gasket seat; 13/16-inch hex size
- REPLACES: Champion N9YC, N11YC, N12YC, RN9YC, RN11YC, RN12YC; NGK B5EB-11, B5ES, BP5ES, BP6ES, BPR7ES, BPR5ES, BPR6ES, BPR7ES, BR5ES
Bestseller No. 9 
6 PCS NEW -- DENSO # 5358 IRIDIUM Power Spark Plugs -- IK20L
- IRIDIUM POWER
- DENSO 5358
- 1order = 6 Pieces
SaleBestseller No. 10 
E3 Spark Plugs E3.66 Premium Automotive Spark Plug w/ DiamondFIRE Technology (Pack of 1)
- Automotive spark plug that fits a variety of domestic applications, designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions
- E3's patented DiamondFIRE edge-to-edge electrode provides maximum performance with increased efficiency, and a faster more complete burn
- Designed with colder heat ranges to enable performance modifications, and contains Yttrium-enhanced alloy for a reduction in side wire temperature for less pre-ignition
- Includes one (1) E3.66 spark plug with a limited lifetime warranty
- Primarily used in a wide variety of automotive and truck applications
SaleBestseller No. 11 
E3 Spark Plug E3.48 Automotive Spark Plug
- Automotive spark plug that fits a variety of domestic applications, designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions
- E3's patented DiamondFIRE edge-to-edge electrode provides maximum performance with increased efficiency, and a faster more complete burn
- Designed with colder heat ranges to enable performance modifications, and contains Yttrium-enhanced alloy for a reduction in side wire temperature for less pre-ignition
- Includes one (1) E3.48 spark plug with a limited lifetime warranty
- Primarily used in a wide variety of automotive and truck applications
Bestseller No. 12 
Autolite APP5224 Double Platinum Automotive Replacement Spark Plugs (4 Pack)
- MAXIMUM PERFORMANCE: Every Double Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker acceleration. Full copper core electrode provides better performance in all conditions
- IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode provides superior heat transfer
- CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion for longer plug life
- high nickel alloy side electrode maintains precise gap
- AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plugs needs
SaleBestseller No. 13 
NGK Spark Plug, NGK BKR5E-11, ea, 1, One Size
- Package Dimensions: 2.2 cms (L) x 2.8 cms (W) x 8.6 cms (H)
- Product Type: Spark Plug
- Package Quantity: 1
- Country Of Origin: Japan
Bestseller No. 14 
Autolite Platinum AP5263 Automotive Replacement Spark Plugs (4 Pack)
- MAXIMUM PERFORMANCE: Every Platinum spark plug is necked-down center electrode fires quicker and cleaner, with less voltage for easier starts and quicker acceleration.
- IMPROVED DURABILITY: Our spark plugs are platinum-to-platinum firing for superior durability and super conductive Yttrium enhanced ground electrode provides superior heat transfer
- CONSTRUCTION: These spark plugs are platinum enhanced high nickel alloy side electrode maintains precision gap and assures virtually no gap erosion for longer plug life
- FUEL EFFICIENCY: The Autolite Platinum automotive replacement spark plug works to optimize engine performance for a longer life and improved fuel economy.
- AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plugs needs
Bestseller No. 15 
Chainsaw Accessory, Aluminum Carburetor Spark Plug Fuel Filter Pipe Primer Bulb Kit for Poulan P3314 P3416 P4018 PP3816 C1M‑W26C
- Chainsaw tune up kit, designed for Poulan P3314 P3416 P4018 PP3816 C1M‑W26C. How to Use: Disassemble the accessories on the original machine; Check if the location is appropriate; It can be installed when appropriate (no need to plug in)
- Good compatibility, highly matching with the original equipment, improving efficiency.
- Selected high‑quality aluminum material, durable and long‑lasting, wear‑resistant.
- Garden tool replacement accessories, high reliability, perfectly mach your equipment.
- High accuracy and superb craftsmanship ensure good working performance.
Bestseller No. 16 
Bosch Automotive (9603) OE Fine Wire Double Iridium Spark Plug - Single
- Double Iridium firing pin and ground electrode inlay provide 4X longer service life compared to standard copper plugs
- 0.6mm fine wire firing pin provides superior ignitability and performance
- 360° continuous laser weld fuses corrosion resistant iridium firing pin to base for increased durability
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.
SaleBestseller No. 17 
NGK 7090 BKR5EGP G-Power Spark Plug, Pack of 4
- NGK 7090 Spark Plug - Pack of 4 (7090)
SaleBestseller No. 18 
E3 Spark Plugs E3.58 Premium Automotive Spark Plug w/ DiamondFIRE Technology (Pack of 1)
- Automotive spark plug that fits a variety of domestic applications, designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions
- E3's patented DiamondFIRE edge-to-edge electrode provides maximum performance with increased efficiency, and a faster more complete burn
- Designed with colder heat ranges to enable performance modifications, and contains Yttrium-enhanced alloy for a reduction in side wire temperature for less pre-ignition
- Includes one (1) E3.58 spark plug with a limited lifetime warranty
- Primarily used in a wide variety of automotive and truck applications
SaleBestseller No. 19 
E3 Spark Plugs E3.20 Lawn and Garden Spark Plug, Pack of 1
- FOR OPTIMAL PERFORMANCE: Spark plug that fits a variety of 4-cycle engines, designed to increase power, reduce fuel consumption, and improve hydrocarbon emissions
- PATENTED TECHNOLOGY: DiamondFIRE features a unique design with an edge-to-edge spark path, which allows replenishment of the spark zone with a fresh fuel/air charge
- INCREASED DURABILITY: Near elimination of performance inhibiting carbon deposits, which dramatically extends the life of the spark plug
- REPLACES: Champion RC12YC, RC14YC; NGK BCP4ES-11, BKR4E, BKR4E-11, BKR5E, BKR5E-11, BKRES, BKR6EKB-11, FR4, FR5
- Compatible with vehicle type: lawn and garden applications
SaleBestseller No. 20 
ACDelco Gold 17 RAPIDFIRE Spark Plug (Pack of 1)
- Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures
- Pure copper core provides great heat transfer and helps maximize plug durability
- Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
- Ribless insulator helps optimize plug to boot seal
- Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Last update on 2023-01-12 / Affiliate links / Images from Amazon Product Advertising API