Name: Vertex Top End Piston Kit - KTM / Husqvarna / GasGas 300 2-Stroke
Brand: All Balls RG
SKU: VTK24244A-1
Price: 336.95 USD
Availability: InStock

Vertex top end piston kit for KTM Husqvarna GasGas 300 2-stroke, view 1

Vertex top end piston kit for KTM Husqvarna GasGas 300 2-stroke, view 2

Vertex top end piston kit for KTM Husqvarna GasGas 300 2-stroke, view 3

Vertex top end piston kit for KTM Husqvarna GasGas 300 2-stroke, view 4

Vertex top end piston kit for KTM Husqvarna GasGas 300 2-stroke, view 5

Vertex top end piston kit for KTM Husqvarna GasGas 300 2-stroke, view 6

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$336.95

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Piston Size

Size A (71.925mm)

Size B (71.935mm)

Size C (71.945mm)

✓ Fits

KTM, Husqvarna, and GasGas 300 2-stroke models (2023-2025): KTM 300 SX (2024-2025), 300 XC (2023-2025), 300 XC-W and Hardenduro (2024-2025); Husqvarna TX 300 (2023-2025), TE 300 and Pro (2024-2025); GasGas EC 300 (2024-2025), EX 300 (2024-2025). 72mm bore, 300cc.

✓ About This Kit

A complete Vertex top end piston kit for your 300 2-stroke. Includes a cast replica piston kit, the top end gasket kit, and the wrist pin bearing, everything you need to freshen the top end. Vertex quality, built to OEM spec.

✓ Choose Your Piston Size (A / B / C)

Vertex pistons come in letter-graded sizes to match your cylinder's exact bore for correct piston-to-cylinder clearance. Measure your cylinder (or check the letter stamped on it) and select the matching piston:

Size A: 71.925mm piston
Size B: 71.935mm piston
Size C: 71.945mm piston

✓ What's Included

Cast replica piston kit (piston, rings, clips)
Top end gasket kit
Wrist pin bearing

MEASURE FIRST: The A, B, and C sizes step up by 0.01mm each. Choosing the correct letter to match your cylinder bore is critical for proper clearance. If unsure, measure your cylinder or consult your engine builder before ordering.

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📦 Shipping Information

In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.

Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.

Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.

Questions? Contact us, we respond within 24 hours.

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