Engine & Drive Parts
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NGK Spark Plugs 2522 Spark Plug 2522
NGK Spark Plugs
$10.59 $5.89NGK Spark Plugs 2522 Spark Plug 2522Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.•?Triple gasket sealing process...- Part Number:
- 41-BUHX
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 2522
- Pack:
- 10
- Pkg.:
- Boxed
$10.59 $5.89 -
NGK Spark Plugs 4055 Spark Plug 4055
NGK Spark Plugs
$17.29 $9.36NGK Spark Plugs 4055 Spark Plug 4055Designed specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling.Fine-tipped iridium-center electrode ensures high durability and...- Part Number:
- 41-BPR7EIX
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 4055
- Pack:
- 4
$17.29 $9.36 -
NGK Spark Plugs 7696 Spark Plug Las-Plat 7696
NGK Spark Plugs
$24.49 $12.79NGK Spark Plugs 7696 Spark Plug Las-Plat 7696Original equipment on many late model applicationsPlatinum at the fine-wire center electrode as well as at the ground electrode provides extended service lifeThe platinum at the ground electrode adds extra...- Part Number:
- 41-PZFR6H
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 7696
- Pack:
- 4
$24.49 $12.79 -
Sold Out, please call for ETA.
NGK Spark Plugs 95897 Spark Plug 95897
NGK Spark Plugs
$18.09 $9.73NGK Spark Plugs 95897 Spark Plug 95897Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.•?Triple gasket sealing process...- Part Number:
- 41-MR7F
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 95897
- Pack:
- 10
- Pkg.:
- Boxed
$18.09 $9.73 -
NGK Spark Plugs Bp8Hs-15 Spark Plug 6729
NGK Spark Plugs
$5.89 $4.13NGK Spark Plugs Bp8Hs-15 Spark Plug 6729Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.•?Triple gasket sealing process...- Part Number:
- 41-BP8HS15
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 6729
- Pack:
- 4
- Pkg.:
- Boxed
$5.89 $4.13 -
Sold Out, please call for ETA.
NGK Spark Plugs 1116 Spark Plug Shop Pack 25/P 1116
NGK Spark Plugs
$376.39 $170.61NGK Spark Plugs 1116 Spark Plug Shop Pack 25/P 1116- Part Number:
- 41-LFR5A11SP
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1116
- Type:
- V-Power
- Pack:
- 25
$376.39 $170.61 -
NGK Spark Plugs 3035 Spark Plug 3035
NGK Spark Plugs
$27.89 $13.83NGK Spark Plugs 3035 Spark Plug 3035Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.•?Triple gasket sealing process...- Part Number:
- 41-BR8ECM
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 3035
- Pack:
- 10
- Pkg.:
- Boxed
$27.89 $13.83 -
NGK Spark Plugs 3754 Spark Plug 3754
NGK Spark Plugs
$5.79 $3.29NGK Spark Plugs 3754 Spark Plug 3754V-Power plugs offer economical performance and improved ignitability over nickel spark plugs. OEM and racer approved.Lowers ignition system voltage requirementsIncreased fuel economyHigh durability resists electrical...- Part Number:
- 41-TR4
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 3754
- Pack:
- 4
- Pkg.:
- Boxed
$5.79 $3.29 -
NGK Spark Plugs 707 P Spark Plugs Shop Pack 707
NGK Spark Plugs
$140.19 $67.99NGK Spark Plugs 707 P Spark Plugs Shop Pack 707- Part Number:
- 41-BR9HS10SP
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 707
- Type:
- Standard
- Pack:
- 25
$140.19 $67.99 -
Sold Out, please call for ETA.
NGK Spark Plugs 708 Spark Plug Shop Pack 708
NGK Spark Plugs
$140.19 $64.75NGK Spark Plugs 708 Spark Plug Shop Pack 708- Part Number:
- 41-BR6FSSP
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 708
- Type:
- Standard
- Pack:
- 25
$140.19 $64.75 -
NGK Spark Plugs 709 Spark Plug Shop Pack 709
NGK Spark Plugs
$140.19 $64.75NGK Spark Plugs 709 Spark Plug Shop Pack 709- Part Number:
- 41-BR8HS10SP
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 709
- Type:
- Standard
- Pack:
- 25
$140.19 $64.75 -
Sold Out, please call for ETA.
NGK Spark Plugs 710 Spark Plug Shop Pack 710
NGK Spark Plugs
$143.69 $66.34NGK Spark Plugs 710 Spark Plug Shop Pack 710- Part Number:
- 41-BP8HN10SP
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 710
- Type:
- Standard
- Pack:
- 25
$143.69 $66.34 -
NGK Spark Plugs 93322 Spark Plug 93322
NGK Spark Plugs
$40.29 $19.67NGK Spark Plugs 93322 Spark Plug 93322- Part Number:
- 41-PFR7AB
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 93322
- Pack:
- 4
$40.29 $19.67 -
AC Delco Spark Plugs 41-993 Iridium Professional Spark Plug 419934
AC Delco Spark Plugs
$25.99 $11.99AC 41993 Iridium Professional Spark PlugSmaller, more efficient, Iridium electrode designs improve cold starting and quicker acceleration. Designed to last over 100,000 miles in most applications. Require reduced ignition system voltage which increases...- Part Number:
- 603-419934
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 41993
- What's in the Box:
- (1) Spark Plug
$25.99 $11.99 -
Sold Out, please call for ETA.
NGK Spark Plugs 1068 Spark Plug 1068 Dp6Ea9
NGK Spark Plugs
$5.89 $4.13NGK Spark Plugs 1068 Spark Plug 1068 Dp6Ea9Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.•?Triple gasket sealing process...- Part Number:
- 41-DP6EA9
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1068
- Pack:
- 10
- Pkg.:
- Boxed
$5.89 $4.13 -
NGK Spark Plugs 1090 Spark Plug 1090
NGK Spark Plugs
$5.89 $4.13NGK Spark Plugs 1090 Spark Plug 1090Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.•?Triple gasket sealing process...- Part Number:
- 41-BR6HS10
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1090
- Pack:
- 10
- Pkg.:
- Boxed
$5.89 $4.13 -
NGK Spark Plugs 1092 Spark Plug 1092
NGK Spark Plugs
$5.89 $4.13NGK Spark Plugs 1092 Spark Plug 1092Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.•?Triple gasket sealing process...- Part Number:
- 41-BPR7HS10
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1092
- Pack:
- 10
- Pkg.:
- Boxed
$5.89 $4.13 -
Sold Out, please call for ETA.
NGK Spark Plugs 1111 Spark Plug B7Es
NGK Spark Plugs
$4.29 $0.00NGK Spark Plugs 1111 Spark Plug B7EsChosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.•?Triple gasket sealing process...- Part Number:
- 41-B7ES
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1111
- Pack:
- 4
- Pkg.:
- Boxed
$4.29 $0.00 -
Sold Out, please call for ETA.
NGK Spark Plugs 1113 Spark Plug Shop Pack 1113
NGK Spark Plugs
$140.19 $62.68NGK Spark Plugs 1113 Spark Plug Shop Pack 1113- Part Number:
- 41-BR7HS10S25
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1113
- Type:
- Standard
- Pack:
- 25
$140.19 $62.68 -
Sold Out, please call for ETA.
NGK Spark Plugs 1119 Spark Plug Shop Pack 1119
NGK Spark Plugs
$376.39 $170.61NGK Spark Plugs 1119 Spark Plug Shop Pack 1119- Part Number:
- 41-LFR6A11SP
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1119
- Type:
- V-Power
- Pack:
- 25
$376.39 $170.61
Spark Plugs for Power Boats
Keep your engine performing at its best with high-quality boat spark plugs designed for outboards, inboards, and sterndrives. At PowerBoatSupply.com, we carry a full selection of NGK spark plugs, AC Delco spark plugs, and other trusted marine brands to fit a wide variety of engines. Whether you’re replacing a single spark plug for a boat motor or outfitting an entire set, you’ll find durable, OEM-recommended options that deliver reliable ignition, smooth starts, and long-lasting performance on the water.
Why Spark Plugs Matter for Marine Engines
Spark plugs are a small but critical part of your boat’s ignition system. They provide the spark that ignites the fuel-air mixture, powering your engine forward. Worn or fouled boat motor spark plugs can lead to misfires, poor fuel economy, hard starts, or even engine damage. That’s why routine replacement with the right spark plug type is essential for keeping your boat running smoothly all season long.
Our Spark Plug Selection
We stock a wide range of marine spark plugs to cover all your needs, including:
- Standard spark plugs – affordable and dependable for routine use
- V-Power spark plugs – improved ignitability for better performance
- Iridium spark plugs – advanced durability and longer service life
- OEM-specific plugs – designed to fit Mercury, MerCruiser, and other popular marine engines
From Mercury outboards to MerCruiser sterndrives, our inventory includes the correct Mercury boat motor spark plugs to keep your engine running at peak efficiency.
When to Replace Your Spark Plugs
Most marine experts recommend inspecting and replacing spark plugs every season, or at least every 100 hours of operation. Signs that your plugs need replacement include difficulty starting, engine hesitation, reduced fuel efficiency, or visible carbon buildup on the electrodes. Swapping them out regularly is an inexpensive way to protect your boat engine and prevent costly repairs.
Shop Spark Plugs Online With Confidence
PowerBoatSupply.com makes it easy to find the exact boat spark plugs you need. With fast shipping, competitive pricing, and our decades of marine parts experience, we’re your trusted source for boat motor spark plugs and engine tune-up parts. Order today and get back on the water with confidence.