Vertex Top End Kit Cast 66.36/Std Kaw

• New T-box forgings and DLC coated wrist pins on forged pistons with highest compression ratios for increased strength and performance.
• All piston skirts are coated with a high-tech Molybdenum Disulfide coating for faster break-in time and increased piston life
• Cast piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston.
• Forged pistons are forged from 2618 aluminum for superior strength and durability.
• Forged High Compression pistons improve power and torque across entire rpm range.
• Forged Replica pistons are forged OE replacements
• All pistons are heat treated with a T-5 hardening and tempering cycle.
• Replica KTM 2-stroke pistons are factory supplied to KTM
• All rings are OEM replacements.
• Top end piston kit includes piston, rings, pins, circlips, top end gaskets, and wrist pin bearing or cam chain where applicable.

Piston Type

Cast Replica

Piston Size

66.36 mm

Shipping weight

1.45 lb

Package size

10.1 × 4.3 × 6.6 in

Salto part #

174-22521B

Vertex part #

VTK22521B

In stock at a distributor warehouse. Ships in 2–4 business days by ground.

Ground shipping is $14.95, free on orders over $150. Stock is re-checked with the warehouse before your card is charged.

Is it in stock?

Yes — the distributor shows it on a shelf at a regional warehouse right now. We check again the moment you order, before anything is charged.

How fast will it get to me?

Usually 2–4 business days by ground.

Will it fit my machine?

The distributor doesn’t publish a vehicle fitment list for this part. Call the counter at 801-361-3010 with your year, make and model and we’ll check it with you before you order.

Is this genuine Vertex?

Yes. It ships new from the same distributors the big online stores buy from — Vertex part #VTK22521B.