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Spark Plug NGK 6521Spark Plug NGK 6521 (2)
6521EAN 087295165218

Spark Plug NGK 6521

Spark Plug NGK 6521. Replaces 8 OE numbers.

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Specification. From the manufacturer's data.

Brand
NGK
Thread Size
M14 x 1.25
Spanner Size
19 mm
Thread Length [mm]
9.5 mm
Spark Position [mm]
1.0 mm
Category
Spark Plug
MPN
6521
SKU
0015-6521
GTIN / EAN
087295165218
What's included
1x Spark Plug

OE numbers. The originals this part replaces.

Numbers the vehicle makers and other brands use for this part. Only a confirmed OE number links to its own page; other brands' equivalents are under “Equivalent products”.

Equivalent products. They fit in the same place.

1 available · 28 numbers

All Spark Plug
All 28 cross-reference numbers

Numbers other makers give for this part. They are aftermarket numbers, not the vehicle maker's OE numbers; a linked number is one we sell.

  • ACDelco CS40
  • ACDelco CS41
  • ACDelco CS42
  • ACDelco CS42S
  • BOM-Prestolite 14-3N
  • BOSCH 0241245554
  • BOSCH WKA225T3
  • BOSCH WS5E
  • BRISK P 15
  • CHAMPION 5843
  • CHAMPION CCH849C
  • CHAMPION CJ3
  • CHAMPION CJ4
  • CHAMPION CJ6
  • CHAMPION CJ6/T10
  • DENSO 6026
  • DENSO W22M
  • DENSO W22M-U
  • DENSO W22M-US
  • DENSO W22MU
  • DENSO W22MUS
  • EYQUEM 755CT
  • MAGNETI MARELLI AW 56 C
  • Motorcraft A2NX
  • PAL P15
  • TORCH L 7
  • TORCH L 7 Y
  • TORCH L 9

Compatible cars. Being checked.

We could not confirm which vehicles this part fits — check before buying.

Fitment not confirmed for this part

Always verify compatibility with your vehicle before ordering.

More about this part. Related categories and similar parts.

NGK

More NGK parts

Related categories

All Spark Plug

Customers also bought

Common OE numbers for this part

Common original equipment numbers linked to replacement-part pages.

Related Guides

Spark Plugs Buying GuideCopper, platinum, or iridium? Understand heat ranges, gap settings, and when to replace spark plugs.

Delivery and returns. No small print.

£5.99

Standard delivery

See the delivery estimate beside the price.

£50.00

Free delivery

Orders from £50.00

14 days

Returns

Money back if the part does not fit.

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2-year warranty against manufacturing defects on all parts, counted from delivery. 14-day money-back guarantee if the part doesn't fit your vehicle. Delivery terms

We ship from the EU to 201 countries. Deliveries within the EU carry no customs charges; outside the UK and the EU, the destination country may charge import duties and taxes, paid on delivery. Delivery times and prices by country

Delivery times to EU countries (working days)

Austria 4–7, Belgium 4–7, Bulgaria 5–9, Croatia 5–9, Cyprus 4–19, Czechia 4–7, Denmark 4–8, Estonia 3–4, Finland 6–10, France 5–8, Germany 3–5, Greece 6–10, Hungary 4–7, Ireland 5–9, Italy 5–9, Latvia 2–3, Lithuania 2–3, Luxembourg 4–7, Malta 4–9, Netherlands 4–7, Poland 3–6, Portugal 6–10, Romania 4–8, Slovakia 4–7, Slovenia 4–8, Spain 6–9, Sweden 5–10