Home / ACDelco MR43T Copper Spark Plug - 8 Pack - For Mercruiser 305 350 454 5.0L 5.7L 7.4L Boats
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ACDelco MR43T Copper Spark Plug - 8 Pack - For Mercruiser 305 350 454 5.0L 5.7L 7.4L Boats
$36.77
Free shipping on all orders.
Qty In Stock: 20
The Set of 8 Spark Plugs for Mercruiser 305 350 454 5.0L 5.7L 7.4L Boat is designed for dependable marine ignition, delivering reliable starts and consistent engine performance for boat and Mercruiser applications. Built for reliable performance and convenient replacement, this item helps support marine engine operation with trusted quality and dependable operation.
Features & Benefits:
🔧 Includes a set of 8 spark plugs for convenient replacement
🔧 Helps support reliable ignition, smooth starts, and steady engine operation
🔧 Durable construction designed for marine and boat engine use
🔧 Convenient multi-pack quantity for complete engine service
Specifications:
Quantity: Set of 8
Product Type: Spark Plug
Application: Marine / Boat
Engine Reference: Mercruiser 305, 350, 454, 5.0L, 5.7L, 7.4L
Choose this Set of 8 Spark Plugs for reliable performance, convenient replacement, and trusted quality—order today!
Shipping Info
Free shipping on every US order. In-stock parts typically ship within 1 business day from Texas.
Returns
30-day returns on unused parts in original packaging. Wrong or defective items are replaced or refunded. See the return policy.
How do I confirm this part fits?
Match the brand and part number to your vehicle, or use the Parts Finder on the homepage. Contact us before ordering if you are unsure.
Are these parts new?
Yes. TXN Supply Co sells new parts from trusted OEM-quality brands — not remanufactured cores.
How fast will my order ship?
In-stock orders ship within 1 business day. Delivery time depends on your ZIP; most US addresses arrive in 2–5 business days.
What is your return policy?
Unused items can be returned within 30 days in original packaging. Customer-initiated returns may include a restocking fee and return shipping.
