Engine & Drive Parts
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NGK Spark Plugs Bp6Hs-10 Spark Plug 6326
NGK Spark Plugs
$6.51 $4.12NGK Spark Plugs Bp6Hs-10 Spark Plug 6326 Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-6326
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- BP6HS-10
- Pkg.:
- Boxed
$6.51 $4.12 -
NGK Spark Plugs CR7E Spark Plug 4578
NGK Spark Plugs
$15.83 $8.89NGK Spark Plugs 4578 Spark Plug 4578 Standard spark plugs are chosen by more automotive, motorcycle and marine engine manufacturers than any other. The unique copper core and exclusive electrode...- Part Number:
- 41-4578
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 4578
- Pack:
- 10
- Pkg.:
- Boxed
$15.83 $8.89 -
NGK Spark Plugs Spark Plug #4218 Cr8Eix
NGK Spark Plugs
$18.49 $14.36NGK Spark Plugs Spark Plug #4218 Cr8Eix Designed specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling...- Part Number:
- 41-CR8EIX
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 4218
$18.49 $14.36 -
NGK Spark Plugs Sparkplug 2120
NGK Spark Plugs
$6.59 $4.47NGK Spark Plugs Sparkplug 2120 Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance...- Part Number:
- 41-D8EA
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- D8EA
- Pkg.:
- Boxed
$6.59 $4.47 -
AC Delco Spark Plugs 41-101 Spark Plug 4 Pack ACP41-101
AC Delco Spark Plugs
$29.59 $17.96Smaller, 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...- Part Number:
- 603-411014
- Availability:
- In Stock - Ships same or next business day.
$29.59 $17.96 -
NGK Spark Plugs 1068 Spark Plug 1068 Dp6Ea9
NGK Spark Plugs
$6.59 $4.47NGK 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...- Part Number:
- 41-DP6EA9
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1068
- Pack:
- 10
- Pkg.:
- Boxed
$6.59 $4.47 -
NGK Spark Plugs 1090 Spark Plug 1090
NGK Spark Plugs
$6.59 $4.50NGK 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...- Part Number:
- 41-BR6HS10
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1090
- Pack:
- 10
- Pkg.:
- Boxed
$6.59 $4.50 -
NGK Spark Plugs 1092 Spark Plug 1092
NGK Spark Plugs
$6.69 $4.52NGK 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...- Part Number:
- 41-BPR7HS10
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1092
- Pack:
- 10
- Pkg.:
- Boxed
$6.69 $4.52 -
Sold Out, please call for ETA.
NGK Spark Plugs 1466 Spark Plug 1466
NGK Spark Plugs
$34.99 $26.17NGK Spark Plugs 1466 Spark Plug 1466Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-BR8HSBLYB
- Availability:
- Out of Stock - Call 856-232-6969 for availability.
- Model #:
- 1466
- Pack:
- 6
- Pkg.:
- Blister
$34.99 $26.17 -
NGK Spark Plugs 1468 Spark Plug 1468
NGK Spark Plugs
$26.99 $7.29NGK Spark Plugs 1468 Spark Plug 1468Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-BR8HS10BLYB
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1468
- Pack:
- 6
- Pkg.:
- Blister
$26.99 $7.29 -
NGK Spark Plugs 1472 Spark Plug 1472
NGK Spark Plugs
$7.15 $4.44NGK Spark Plugs 1472 Spark Plug 1472Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-BR9HS10BLYB
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1472
- Pack:
- 6
- Pkg.:
- Boxed
$7.15 $4.44 -
NGK Spark Plugs 1473 Spark Plug 1473
NGK Spark Plugs
$8.85 $7.39NGK Spark Plugs 1473 Spark Plug 1473Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-BU8HBLYB
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1473
- Pack:
- 6
- Pkg.:
- Blister
$8.85 $7.39 -
Sold Out, please call for ETA.
NGK Spark Plugs 1475 Spark Plug 1475
NGK Spark Plugs
$4.99 $2.92NGK Spark Plugs 1475 Spark Plug 1475Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-BUHW2BLYB
- Availability:
- Out of Stock - Call 856-232-6969 for availability.
- Model #:
- 1475
- Pack:
- 6
- Pkg.:
- Blister
$4.99 $2.92 -
Sold Out, please call for ETA.
NGK Spark Plugs 1505 Spark Plug 1505
NGK Spark Plugs
$6.29 $4.95NGK Spark Plugs 1505 Spark Plug 1505Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-BP8HN10BLYB
- Availability:
- Out of Stock - Call 856-232-6969 for availability.
- Model #:
- 1505
- Pack:
- 6
- Pkg.:
- Boxed
$6.29 $4.95 -
NGK Spark Plugs 1506 Spark Plug 1506
NGK Spark Plugs
$22.37 $14.22NGK Spark Plugs 1506 Spark Plug 1506Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-BPZ8HS10BLYB
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 1506
- Pack:
- 6
- Pkg.:
- Boxed
$22.37 $14.22 -
NGK Spark Plugs 2262 Spark Plug 2262
NGK Spark Plugs
$7.49 $4.71NGK Spark Plugs 2262 Spark Plug 2262V-Power plugs offer economical performance and improved ignitability over nickel spark plugs. OEM and racer approved.Lowers ignition system voltage...- Part Number:
- 41-ZFR5F11
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 2262
- Pack:
- 4
- Pkg.:
- Boxed
$7.49 $4.71 -
Sold Out, please call for ETA.
NGK Spark Plugs 2360 Spark Plug Cr10Ek
NGK Spark Plugs
$21.69 $15.80NGK Spark Plugs 2360 Spark Plug Cr10EkChosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-CR10EK
- Model #:
- 2360
- Pack:
- 10
- Pkg.:
- Boxed
$21.69 $15.80 -
NGK Spark Plugs 2430 Spark Plug 2430
NGK Spark Plugs
$4.52NGK Spark Plugs 2430 Spark Plug 2430Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-CR4HSA
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 2430
- Pack:
- 10
- Pkg.:
- Boxed
$4.52 -
Sold Out, please call for ETA.
NGK Spark Plugs 2622 Spark Plug 2622
NGK Spark Plugs
$4.79 $2.81NGK Spark Plugs 2622 Spark Plug 2622Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-BUHW
- Availability:
- Out of Stock - Call 856-232-6969 for availability.
- Model #:
- 2622
- Pack:
- 10
- Pkg.:
- Boxed
$4.79 $2.81 -
NGK Spark Plugs 2633 Spark Plug 2633
NGK Spark Plugs
$6.49 $4.30NGK Spark Plugs 2633 Spark Plug 2633Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-BPR6HS10
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 2633
- Pack:
- 10
- Pkg.:
- Boxed
$6.49 $4.30
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.