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Home / NGK 6869 Spark Plug MAR9A-J - 1 Pack

NGK 6869 Spark Plug MAR9A-J - 1 Pack

$35.77

Free shipping on all orders.

Qty In Stock: 20

The NGK 6869 Spark Plug (MAR9A-J) is specifically engineered for high-performance marine engines and powersport applications. Featuring an iridium center electrode and compact design, it offers superior ignitability, corrosion resistance, and long-lasting performance in harsh environments such as outboards and watercraft.

Features & Benefits:

🔧 Iridium tip provides exceptional durability and spark efficiency
🔧 Anti-corrosion construction ideal for marine environments
🔧 Compact design fits tight, high-RPM engine compartments
🔧 Pre-gapped for fast, OE-spec installation

Specifications:

Brand & Part Number: NGK 6869 (MAR9A-J)
Material: Iridium
Thread Size: 10mm
Reach: 19mm (0.75 in)
Hex Size: 5/8 in (16mm)
Heat Range: 9
Seat Type: Gasket
Resistor: Yes
Gap: 0.7mm (0.028 in)

Choose NGK MAR9A-J for high-performance marine ignition, corrosion resistance, and dependable starts in extreme conditions—order now!

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.