• SILMAR9A9S NGK iridium spark plug
1 1

SILMAR9A9S Iridium Spark Plug | Genuine NGK Spark Plug

SILMAR9A9S Iridium Spark Plug | Genuine NGK Spark Plug

$80.00 AUD
$80.00 AUD
Sale Sold out
Shipping calculated at checkout.

✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide

🔧 Product Description

NGK Iridium Spark Plug – Part Number: SILMAR9A9S

NGK iridium spark plugs feature an iridium alloy on the centre electrode, welded on with a laser – one of the world's hardest metals, with a melting point of 2450°C, giving very high resistance to spark erosion and, on average, double the service life of a standard nickel spark plug.

📏 Specifications

  • NGK stock number: 6213
  • Thread: 10 mm x 1.0 mm
  • Reach: 26.5 mm (1.04 in)
  • Hex: 14 mm (9/16 in)
  • Seat: Gasket
  • Terminal: Solid
  • Gap as supplied: 0.9 mm (.035 in)
  • Heat range: 9
  • Resistor: Yes (5 kilohm)
  • Centre electrode: Iridium, fine wire, 0.6 mm, projected
  • Ground electrode: Platinum

🔄 Supersession & Cross Reference

NGK's cross-reference tables list this plug against these part numbers.

  • Honda: 31909-MEN-A310-M1

📦 Condition

  • Brand new genuine product
  • Supplied in original packaging

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

View full details