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Home / 8 NGK Spark Plugs - For Mercury 50 504 4-Stroke 2006- Outboard Motor

8 NGK Spark Plugs - For Mercury 50 504 4-Stroke 2006- Outboard Motor

$62.77

Free shipping on all orders.

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The NGK 3932 Spark Plug (DCPR7E) is engineered for high-performance outboard motors, delivering cleaner ignition, reduced misfires, and long service life in marine environments.

Features & Benefits:

🔧 Resistor design prevents radio frequency noise
🔧 Copper core ensures excellent conductivity
🔧 Long reach plug supports EFI and 4-stroke applications
🔧 Ideal for Mercury and Honda outboard systems

Specifications:

Brand & Part Number: NGK 3932 DCPR7E
Material: Copper
Thread Size: 12mm
Reach: 19mm (0.75 in.)
Hex Size: 5/8 in. (16mm)
Seat Type: Gasket
Resistor: Yes
Gap: 0.031 in. (0.8mm)

Use NGK DCPR7E to maintain top-tier performance in marine 4-stroke engines—available 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.