Home / 8 Pack ACDelco MR43T Spark Plug - For 1982-1987 Mercruiser 260 Thunderbolt IV
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8 Pack ACDelco MR43T Spark Plug - For 1982-1987 Mercruiser 260 Thunderbolt IV
$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 smooth starts, efficient combustion, and consistent performance for boat engine applications. Built for reliable performance and convenient replacement, this item helps support marine engine maintenance with trusted quality and dependable operation.
Features & Benefits:
🔧 Includes a set of 8 spark plugs for convenient multi-cylinder replacement
🔧 Reliable spark output helps support smooth starts and steady engine operation
🔧 Durable construction intended for demanding marine conditions
🔧 Practical replacement set for boat engine service and maintenance
Specifications:
Brand & Part Number: Not specified
Quantity: Set of 8
Product Type: Spark Plug
Application: Marine / Boat
Choose this Set of 8 Spark Plugs for dependable performance, convenient replacement, and trusted quality—order today!
Quicksilver 33-898264001 ACDelco MR43T for Thunderbolt IV / early Mag years. Not 2002+ MPI (33-8M2018369). Not every 454/7.4.
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.
