You could get any random marine spark plugs, but if you’re looking for expert advice on choosing the best one for your needs then you’ve arrived at the right place.
It doesn’t matter what your marine spark plugs needs are or what your budget is, because I’ve done an in-depth analysis to include the best-rated options suitable for diversified usage needs and different budget ranges.
To make this list, I’ve spent 40 hours researching marine spark plugs from the best brands such as: Champion828M QL77JC4, NGK, Quicksilver.
Note: Make sure that option you’re choosing has all the features you need. Afterall, is there any point in purchasing something that’s not usable?
44 Best marine spark plugs in 2023: After 40 Hours of Research
To make this list an unbiased resource for choosing the best marine spark plugs, I contacted 16 experts and discussed various aspects to consider. After a huge discussion, I went across customer reviews, researched the reputed brands, and a lot of other things. Because my aim is to recommend products that are highly value for your money.
1. Champion 828M Pack of 4 Copper Marine Spark Plugs (QL77JC4) -Automotive
By Champion828M QL77JC4
- 828m 4 pack
2. Nkg Spark Plug Marine, Motorcycle, Watersport 4 Pack BR8HS-10 -Automotive
By NGK
- Sold in packs of 4
3. Quicksilver 97182Q NGK BUHW-2 Surface Gap Spark Plug, 1-Pack -Spark Plugs
By Quicksilver
- Don’t just clean used spark plugs, replace them with new plugs for better performance
- Check your engine owner’s manual for the correct spark plug and use only the plug as recommended by your engine’s original equipment manufacturer
- Replace all the engine plugs at the same time
- NGK Trivalent metal plating also provides superior anti-corrosion in the marine environment and anti-seizing for easier removal
- NGK BUHW-2 surface gap plugs feature a tungsten center electrode and a solid terminal
4. Champion QL77JC4 (828M) Pack of 8 Spark Plugs -Automotive
By Champion
- Please consult owner’s manual for proper part number identification and proper installation
- Reach: 12.7mm (1/2″), Hex Size: 13/16″ (21mm), Terminal Type: Solid, Gap: .039″ (1.0mm)
- Pack of 8
- Genuine OEM Champion Spark Plugs
- Thread Size: 14mm, Seat Type: Gasket, Resistor Type: Inductive
5. Quicksilver 898264001 AC Delco MR43T Spark Plug -Automotive
By Quicksilver
- Replace all the engine plugs at the same time
- Made by AC Delco with nickel alloy tip, copper core and ribbed suppressor seal for durability and performance
- Nickel-chrome alloy sheathing on the ground and center electrodes help resist wear from spark erosion and the corrosive environment of the combustion chamber
- Don’t just clean used spark plugs, replace them with new plugs for better performance
- Check your engine owner’s manual for the correct spark plug and use only the plug as recommended by your engine’s original equipment manufacturer
6. ACDelco MR43LTS Specialty Marine Spark Plug (Pack of 1) -Automotive
By ACDelco
- Made by AC Delco with nickel alloy tip, copper core and ribbed suppressor seal for durability and performance
- Replace all the engine plugs at the same time
- Don’t just clean used spark plugs, replace them with new plugs for better performance
- Fit type: Vehicle Specific
- Check your engine owner’s manual for the correct spark plug and use only the plug as recommended by your engine’s original equipment manufacturer
7. NGK 4838 Pack of 4 Spark Plugs BP8H-N-10 -Automotive
By NGK
- Tip material: Nickle with V-groove
- Genuine OEM NGK parts
- Pack of 4
8. Quicksilver 13686Q NGK BU8H Semi-Surface Discharge Design Spark Plug, 1-Pack -Spark Plugs
By Quicksilver
- The copper core aids in heat removal to keep the spark plug operating efficiently
- NGK Trivalent metal plating also provides superior anti-corrosion in the marine environment and anti-seizing for easier removal
- NGK BU8H surface gap plugs feature a semi-surface discharge design to improve ignition and burn off any carbon before it can build up to foul the plug
- Spark plugs are easy to change with common spark plug sockets.
- Check your engine owner’s manual for the correct spark plug and use only the plug as recommended by your engine’s original equipment manufacturer
9. QL78YC SPARK PLUG, Pack of 4 -Spark Plugs
By Champion
- CHAMPION SPARK PLUG CO
- QL78YC, CHPQL78YC
- Sold 4 per pack
10. NGK 3108 Pack of 4 Spark Plugs -Automotive
By NGK
- Corrugated Ribs Prevent Flash Over
- Copper Core Aids In Heat Removal
- Standard Plugs Are Constructed For Longer Life And Optimum Performance
- Pure Alumina Silicate Ceramic Insulator Provides Superior Strength And Better Heat Transfer
- Trivalent Metal Plating Provides Superior Anti-Corrosion And Anti-Seizing Properties
11. Champion 827M L76V Marine Spark Plug Pack of 4 -Automotive
By Champion827M
- PACK OF 4
- Genuine brand, not used, may not be in original packaging.
12. Champion L77JC4 Pack of 4 Spark Plugs -Automotive
By Champion
- Replaces various spark plugs including: AC Delco M40FFX, M41FF, S40F, Accel 156, Autolite 2634, 4092, Beck Arnley 176-5006, Beru 14Z-3AU, Beru Z37, Bosch 241256512, 241256519, W250T1, W275T1, W280S1S, W280T13S, W340S1S, W3AC, W3AS, W4A, W4A1, W4A2, W4A5, W4AC, W4AS, WO8AS, Brisk N14C-1, Champion L3G, L4G and various others
- Genuine OEM Champion Spark Plugs
- Pack of 4
13. Champion 827M L76V Marine Spark Plug Pack of 6 -Automotive
By Champion827M
- Thread: 14mm, Reach: 12.7mm, Seat type: flat, Hex size: 21mm, Type: Semi or surface discharge, Terminal type: Solid, New, Bulk Packed.
- Includes (6) Spark Plug.
- Please refer to list for compatibility.
- Genuine Champion Spark Plugs.
- Consult owners manual for proper part number identification and proper installation.
14. Champion Copper Marine Spark Plug 828M QL77JC4 Pack of 6 -Automotive
By Champion828M QL77JC4
- Genuine Champion Spark Plugs.
- Includes (6) Spark Plug.
- Consult owners manual for proper part number identification and proper installation.
- Thread: 14mm, Reach: 12.7mm, Seat type: flat, Hex size: 21mm, Tip configuration: non projected, Type: Standard, Terminal type: Solid, New, Bulk Packed.
- Please refer to list for compatibility.
15. NGK 3481 Pack of 4 Spark Plugs (DCPR6E) -Automotive
By NGK
- Consult owners manual for proper part number identification and proper installation.
- Includes (4) DCPR6E-4PK Spark Plugs.
- Genuine OEM NGK Replacement Part.
- New, Bulk Packed.
- Please refer to list for compatibility.
16. NGK 3672 Pack of 4 Spark Plugs LFR6A-11 -Automotive
By NGK
- Research Applications Prior to Purchase To Make Sure This OEM Part Fits Your Vehicle, Including Engine, Drivetrain and Quantity Needed.
- Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity.
- Offering the Quality, Reliability and Durability You’d Expect from an OEM Manufacturer
- This Listing is for 4 Spark Plugs
- NGK is the world’s largest supplier of OEM spark plugs
17. NGK 3133 Standard Spark Plug – BPZ8HS-10, 1 Pack -Automotive
By NGK
- Designed to operate over a much wider heat range than ordinary plugs
- High alumina ceramics for better heat transfer and electrical insulation
- Fit type: Vehicle Specific
- Resists carbon buildup and pre-ignition
- Solid copper core and nickel tipped electrode provide a longer plus life
18. Quicksilver 816336Q NGK BPR6EFS Standard Spark Plug, 1-Pack -Spark Plugs
By Quicksilver
- NGK Trivalent metal plating also provides superior anti-corrosion in the marine environment and anti-seizing for easier removal
- This NGK standard plug features a copper core to promote heat dissipation and more efficient spark plug operation and a removable terminal
- Check your engine owner’s manual for the correct spark plug and use only the plug as recommended by your engine’s original equipment manufacturer
- Replace all the engine plugs at the same time
- NGK BPR6EFS Standard plugs are pre-gapped to your engine manufacturer’s specifications
19. L78V SPARK PLUG, Pack of 4 -Automotive
By Champion
- Sold 4 per pack
- CHAMPION SPARK PLUG CO
- L78V, CHPL78V
20. NGK Spark Plug Stock # 7162 (Motorcycle/Marine) -Automotive
By NGK
- NGK Spark Plug Stock # 7162 (Motorcycle/Marine)
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21. PARTSRUN Hi Performance 18-5227-1 Premium MagForce 9″ Marine 7MM Spark Plug Wire Lead for Mercury/Mariner Outboard Engines Replaces Mercury 84-813715A1,ZF696 -Spark Plugs
By PARTSRUN
- PARTSRUN 100% New Quality Guaruntee！
- PARTSRUN Part Easier to insall and works perfect！Make Your Engine Great Again！
- Ships Fast From The USA,We will answer any questions in 24 Hours!
- PARTSRUN Part Repalces OEM Part Save Your Time and Money！
- Hi Performance 18-5227-1 Premium MagForce 9″ Marine 7MM Spark Plug Wire Lead for Mercury/Mariner Outboard Engines Replaces Mercury 84-813715A1,ZF696
22. NGK 5110 Standard Spark Plug – B7HS, 1 Pack -Automotive
By NGK
- package width :2.5 cm
- package height : 8.7 cm
- package length : 2.2 cm
- country of origin :China
23. New NGK Standard Spark Plug BR7HS10, 1098 Set of 4 Spark Plugs -Automotive
By NGK
- Sold in packs of 4
24. Champion 931M QL82C Marine Spark Plug Pack Of 4 -Automotive
By Champion931MQL82C
- PACK OF 4
- 931M QL82C
25. Champion Copper Marine Spark Plug 821M L77JC4 Pack of 6 -Automotive
By Champion821M L77JC4
- Genuine Champion Spark Plugs.
- Includes (6) Spark Plug.
- Thread: 14mm, Threadeach: 12.7mm, Seat type: flat, Hex size: 21mm, Type: Standard, Terminal type: Solid, New, Bulk Packed.
- Please refer to list for compatibility.
- Consult owners manual for proper part number identification and proper installation.
26. Champion Copper Plus Small Engine 938M Spark Plug (Carton of 1) – QL78YC -Automotive
By Champion
- Copper Plus – Dependable Performance and Durability
- OE type replacement plug
- Built to ISO and SAE standards for proven performance
- Copper core center electrode allows for accurate control of heat range for longer life
- Inhibits corrosion
27. Spark Plug, Marine, BR8HS-10 -Automotive
By NGK
- Ngk replacement , part number 1134
- Genuine, OEM Ngk Replacement Part
28. Dcpr6E Blyb Spark Plug -Automotive
By NGK
29. Sierra International 18-8802-1 Spark Plug Wire Set – 8 Cylinder, Conventional Ignition -Automotive
By Sierra International
- Corrosion resistant stainless steel spark plug and distributor terminals for maximum conductivity
- Superior RFI suppression for the most sensitive electronic system
- Kevlar core for maximum durability and long life
- Premium silicone jacketing and boots for the ultimate in high temperature protection
- Durable stainless steel wound conductor for maximum horsepower and engine performance
30. NGK 5126 Spark Plug – B8HS-10, 4 Pack -Automotive
By NGK
- Patented triple gasket sealing process eliminates the possibility of combustion gas leakage
- Designed to operate over a much wider heat range than ordinary plugs
- High alumina ceramics for better heat transfer and electrical insulation
- Fit type: Vehicle Specific
- Resists carbon buildup and pre-ignition
- Solid copper core and nickel tipped electrode provide a longer plus life
31. NGK New Standard Spark Plug BR9HS10, 4551 Set of 4 Spark Plugs -Automotive
By NGK
- REDUCE EMISSIONS AND MISFIRES: This tried-and-true Spark Plug boosts performance, and enables better performance so that your engine runs at its best
- Their attention to performance excellence is what has differentiated them from the competition and allowed them to be the number one supplier of spark plugs and oxygen sensors
- The durable shell reliably protects the spark plug from damage, ensuring long-lasting sparking capabilities
- The damage-tolerant center and ground electrodes minimize spark gap growth and provide greater ignitability and spark efficiency
- TRUST IN NGK NTK: Explore components built by the world leader in the design of spark plugs and oxygen sensors
- This 4 pack NGK Standard 4551 Spark Plug replaces Suzuki 09482-00467, Yamaha 94701-00309, Yamaha 94702-00309, Yamaha 94709-00309, DENSO Auto Parts 6055, DENSO Auto Parts W27FSRU10, Champion Spark
- In order to deliver high-quality spark plugs and oxygen sensors to the automotive community, NGK has partnered with auto manufacturers to engineer automotive parts that fit both the vehicles of today and of the future
- IMPROVE IGNITION AND SPARK EFFICIENCY: This Spark Plug employs advanced center and ground electrodes to produce complete and efficient combustion and deliver an outstanding spark for faster, stronger, and more powerful combustion over the life of the spark plug
- The center and ground electrodes promote sharper spark focus for fewer misfires
- RELY ON QUALITY IGNITION COMPONENTS: From their start in 1936 through today, the NGK product line is proof of their dedication to innovation, performance, and quality
32. Champion Copper Plus Small Engine 821 Spark Plug (Carton of 1) – L77JC4 -Automotive
By Champion
- Copper core center electrode allows for accurate control of heat range for longer life
- OE type replacement plug
- Copper Plus – Dependable Performance and Durability
- Inhibits corrosion
- Built to ISO and SAE standards for proven performance
33. TORCH E9Y-13 Marine Boat Spark Plug Replace for Autolite 2852 Spark Plug, for NGK BUHW 2622 BU8H 6431 Spark Plug, for Denso 6001 Spark Plug , for Champion QL76V Spark Plug, OEM, ea -Automotive
By TORCH
- 🟢PERFORMANCE – Longer Service Life · Fast Starts · Reduce Emissions · Improve Fuel Efficiency · Stable Performance.
- 🟢LONG HISTORY – In 1961, Zhuzhou torch spark plug
- In 2003，TORCH has become china’s largest spark plug production and R&D base
- Co.,ltd
- Spark plug factory, ride into the forefront of the world!
- specifically designed to increase power, reduce fuel consumption and improve hydrocarbon emissions.
- 🟢COMPATIBILITY – TORCH spark plugs E9Y-13 Replace for Autolite 2852 Spark Plug, for NGK BUHW Spark Plug, for Denso 6001 Spark Plug , for Champion QL76V Spark Plug, OEM.
- Subsequently, TORCH bought the full set of equipment and technical patent from DELPHI U.S.A
- was established at Lukou, Zhuzhou, CHINA
- 🟢APPLICATIONS – Spark plugs are an important part of the ignition system of gasoline or gas engines, and are widely used in many fields such as automobiles, motorcycles, aircraft, garden tools, yachts and industrial engines
- 🟢SPECIFICATIONS – Thread diameter: 14mm/Thread length:19mm/Hex size:20.8mm
- Please check for correct specifications and measurements for your application!!!
- In 1993，TORCH was listed as Shenzhen stock exchange
34. Champion 833M L78V Spark Plug Copper Marine Pack Of 4 -Automotive
By CHAMPION833ML78V
- PACK OF 4
- 833M L78V
35. Champion Copper Plus Small Engine 883 Spark Plug (Carton of 1) – QL78C -Automotive
By Champion
- OE type replacement plug
- Inhibits corrosion
- Built to ISO and SAE standards for proven performance
- Copper Plus – Dependable Performance and Durability
- Copper core center electrode allows for accurate control of heat range for longer life
36. NGK Spark Plug, NGK DPR8EA-9, ea, 1 -Automotive
By NGK
- Trivalent plating eliminates need for anti-seize and corrugated ribs prevent flashover
- 98% pure copper core increases heat dissipation for more reliable starts and prevents spark plug from overheating
- Quantity: 1 per package
- Cold-rolled threads to prevent cross-threading and damage to cylinder heads
- High-grade alumina silicate ceramic insulator for superior strength and heat transfer
37. Champion 838M QL78V Marine Spark Plug Pack Of 4 -Automotive
By CHAMPION838MQL78V
- PACK OF 4
- 838M QL78V
38. (2-Pack) NGK Spark Plugs BP8H-N-10 (Stock # 4838) -Automotive
By NGK
- Sold in packs of 2
39. NGK BPR6EFS Standard Spark Plug -Automotive
By NGK
- Longer insulator nose
- High alumina ceramics for better heat transfer and electrical insulation
- Corrugated ribs on insulator prevents flashoverZinc dipped shell
- Triple gasket seal eliminates combustion gas leakage
- Solid copper core and nickel tipped electrode provide a longer plus life
- Designed to operate over a much wider heat range than ordinary plugs
- Resists carbon buildup and pre-ignition
- Patented triple gasket sealing process eliminates the possibility of combustion gas leakage
- Solid copper core for greater spark
40. (4-Pack) NGK Spark Plugs LFR5A-11 (Stock # 6376) -Automotive
By NGK
- Sold in packs of 4
Related Posts:
41. Champion Iridium 9005 Spark Plug (Carton of 1) – QC10WEP -Automotive
By Champion
- Heat-Active alloy allows electrodes to reach optimal temperature quickly
- Iridium center electrode delivers maximum life
- Premium Spark Plug
- Fine-wire center electrode and V-trimmed for greater ignitability
- Champion Iridium – Maximum Performance
- Maintains stable operating temperature under all engine loads
- V-trimmed ground electrode promotes sharper spark focus
42. Nkg Spark Plug Marine, Watersport Br6fs – 4323 Boxed -Automotive
By NGK
- Sold in packs of 4
43. Champion Copper Plus Small Engine 827M Spark Plug (Carton of 1) – L76V -Automotive
By Champion
- Built to ISO and SAE standards for proven performance
- Inhibits corrosion
- OE type replacement plug
- Copper core center electrode allows for accurate control of heat range for longer life
- Copper Plus – Dependable Performance and Durability
44. Champion 833M L78V Spark Plug Copper Marine Pack Of 8 -Automotive
By CHAMPION833ML78V
- PACK OF 8
- 833M L78V
Best Brands
Buying a product from a reputable manufacturer that provides high brand value is one of the most essential things. Based on my research, here are the top brands that make the best marine spark plugs.
- Champion828M QL77JC4
- NGK
- Quicksilver
- Champion
- ACDelco
- Champion827M
- PARTSRUN
- Champion931MQL82C
- Champion821M L77JC4
- Sierra International
The Buyer’s Guide
Although the aim of this list is to help you choose the best option for your needs. This guide shall help you make an informed purchase decision. Here are the few things to consider when choosing a marine spark plugs.
1. Features
There’s no point in purchasing a marine spark plugs that doesn’t solve your usage needs. Sometimes, even the best option wouldn’t have all the options you’d need. That’s why list down all your feature requirements and make sure that the option you’ve chosen comes with all of them.
2. Budget
Budget plays an important role, if it wasn’t for the budget, wouldn’t everyone purchase the most expensive option? However, before you decide the budget, I’d recommend you to make a list of features you’d need. In case a feature you need the most isn’t available in your budget range, then there’s no point in buying it, is there?
My advice is to make sure that the product has all the features you need then decide the budget. If a product you’ve chosen isn’t having all the features you need, then you should consider increasing your budget.
3. Value For Money
There are times when you shall come across various marine spark plugs that shall have all the features you need. However, the price difference shall exist. In a situation like this, it is recommended to value each feature and make sure that you’re not overpaying for a feature you wouldn’t use.
4. Brand, Customer Support, & Warranty
Purchasing a product from a reputed brand is very important. Not only does it guarantee high-quality build, but you also get much better customer support.
You should also make sure that it has a decent warranty, it is really helpful in case a product breaks down due to manufacturing defects. Also, repairs during warranty are generally free of cost (depends on service terms).
5. Individual Product Reviews
You don’t have to watch individual reviews of each marine spark plugs in this list. However, pick 2-3 options that have all the technical aspects according to your usage needs. Once you’re ready with it, go to YouTube/Amazon and look at video/customer reviews to make sure that the existing buyers are satisfied with the product.
The FAQs
Which is the best marine spark plugs?
According to my research, the Champion 828M Pack of 4 Copper Marine Spark Plugs (QL77JC4) is the best option.
Is Champion828M QL77JC4 a reliable brand?
It’s one of the best brands, not only does it make the top-rated marine spark plugs, but it also is known for its exceptional service.
Which is the cheapest yet powerful marine spark plugs?
According to me, the NGK 3108 Pack of 4 Spark Plugs is one of the cheapest options available and yet has all the features.
Are there deals going on?
A few of the options in our article are currently available for a discounted price. However, check out the product listing to find more information.
What brands should I consider when purchasing?
Based on my research, these are the top 5 brands: Champion828M QL77JC4, NGK, Quicksilver, Champion, and Quicksilver.
Should I buy it online or go to an offline store?
Shopping online comes with a few advantages such as discounted pricing, quick delivery at home. However, if you’re in a hurry or can find the product for a cheaper price in the offline market, consider visiting the offline store.
The Verdict
Choosing the right product isn’t easy and for many of them it could be a time consuming task. However, with this guide, my aim is to help you guys find the perfect marine spark plugs for your needs.
I’ve done a huge research to ensure that options I’ve listed are among the best. Like mentioned above, I also interviewed many experts to make sure that the enlisted models are high quality.
I hope that you’re able to find the right marine spark plugs for your usage. If you are still struggling to find one, feel free to comment below or contact me.
