GENUINE MERCURY REPLACEMENT PART
SPARK PLUG
Part no. 803990
US$ 18≈ 895.11 ₺ + VATincl. VAT (20%): ₺ 1,074.14
₺ equivalent is calculated at the current CBRT rate (2026-10-23); prices exclude VAT
Out of stockSuperseded by: 8M0046007
Check compatibility first.
The model name alone may not be enough; the same model uses different parts across serial ranges.
Verify by serial numberYour cart becomes a quote request for our sales team; no payment is taken.
What does this part do?
Ignites the fuel-air mixture in the cylinder. Worn plugs cause hard starting and misfires; inspect every 100 hours, replace as a set every 300 hours.
- Brand
- Mercury Marine
- Product group
- Spark Plugs
- Part number
- 803990
- Menşei
- JP
- Paket adedi
- 4.0
- Tehlike kodu
- 0.0
- Sınıf
- 33.0
- Mercury durumu
- SS
- Paket ağırlığı
- .102 LBS (0.05 kg)
- Yükseklik
- 1.0 IN (2.5 cm)
KNOW THE PART BETTER
Make the choice clear.
For spark plugs the engine name is not enough; the exact part code and gap (e.g. 0.8 mm) come from the manual. Quantity equals the cylinder count.
Explore inside the engineHave this ready when asking for a quote
Engine serial number, the code on the current plug and the cylinder count.
Used on these engines
- 350 MAG MPI HORIZON MIE — Distributor and Ignition ComponentsPos. 18 · qty 8 · go to diagram →