Available to order

Genesis Coupe (BK) 2.0T / Elantra N (CN7) / Kona N (OS) / Veloster N (JS)Forged Piston 9.25:1 (Single)

Wiseco

$217.99 plus any local taxes
Delivery starting at ~$13 Rates dependent on location and calculated live at checkout
Ordering this with other parts?

If your cart mixes direct-ship parts with items we hold locally, checkout combines them into one delivery charge and picks the cheapest service for each automatically.

To see and choose from the full list of delivery services, we recommend ordering direct-ship parts on their own.

Not CARB-approved. Not eligible for delivery to California, New York or Colorado, and not for use on pollution-controlled vehicles.

Bore86.0mm (Standard)

This one isn't in our US warehouse right now — we'll order it in from the manufacturer when you buy. Please allow extra time on top of the usual delivery estimate.

Stock shown is what's on the shelf in our US warehouse and is kept up to date. This part ships direct to you from there — see how direct shipping works below.

  • Ships direct from our US warehouse — tracked to your door
  • Brand new and factory sealed, straight from the distributor
  • Fitment & tuning advice from real technicians

Direct shipped from our US warehouse

What Is Direct Shipping?

This part ships straight to you from our US warehouse rather than sitting on our shelf in Clyde. You get a wider range and current pricing — the trade-off is that it takes a little longer to arrive than something we stock locally.

  1. You Order

    Check out as normal and you will get an order confirmation straight away.

  2. We Place The Order

    We order the part the same business day and it is picked from our US warehouse, brand new and factory sealed.

  3. It Ships To You

    It flies direct to your door by courier — it does not route through our workshop. You get the tracking number as soon as it leaves.

  4. It Arrives

    If you ordered anything we stock locally, that ships separately from Clyde — so an order can arrive in more than one delivery.

Delivery Time

Our supplier quotes 2–4 weeks from order to delivery.

No Import Fees

This part ships to you from inside the United States, so there is no customs clearance, no import duty and no brokerage fee.

Any applicable sales tax is calculated at checkout.

Product details

A single Wiseco forged piston for the Theta II 2.0T (G4KF) in the 2010-2014 Genesis Coupe - a spare, or a one-cylinder replacement to match a Wiseco set already in the engine.

  • Forged 2618 aluminium, 9.25:1 with a -4cc dish
  • 86.0mm for a standard bore, or 86.5mm for a +0.5mm rebore
  • 86mm stroke, 146mm rod, 30mm compression height, 22mm pin

For a full rebuild, the four-piston set is the better buy. Some catalogues label this piston '4B11-T': it is the Hyundai G4KF piston, not a Mitsubishi Evo X part. Wiseco catalogues it for the G4KF; the 2.0 T-GDi (G4KH) in the i30 N, i30 Sedan N, Kona N and Veloster N shares the G4KF's internals, so it suits those engines too. Does not fit the 3.8 V6.

Good to know

No claims are made regarding the legality of any parts for road use. Parts are supplied for off-road/competition use only — it is the customer's responsibility to confirm local regulations before fitting parts for road use.