Vertex Top End Rebuild Kit - WR450F 12,5:1 2016-18 (V23958D) 96.97mm

Vertex Top End Rebuild Kit - WR450F 12,5:1 2016-18 (V23958D) 96.97mm

Marsoni

M251S

$247.30

Get it in 3 business days with 1 day shipping. Friday, May 29

Vertex Top End Rebuild Kit - WR450F 12,5:1 2016-18 (V23958D) 96.97mmVERTEX TOP END REBUILD KITS Piston Kit Vertex pistons have an outstanding reputation for quality and performance. Each gravity cast piston is created with only premium aluminium alloys utilizing a 12 21% silicon content. The silicon content in Vertex pistons is crucial to the quality of the piston. Silicon is critical in decreasing thermal expansion which, when an engine reaches normal operating temperatures, can change the geometry of the piston.

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Buy a longer launcher!!! I got what I paid for! A 12.2 inch launcher does not build up enough energy to throw it very far and it is tweaking my elbow. The dog is very disappointed since the ball only goes about 30 feet. I’ll keep it for small dog park use. The balls are hard and my 22 pound Cockapoo can’t get it to squeak.

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Reviewed in the United States on May 10, 2026

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Rob Settle

Lexington, US

★★★★★ 5

These are dog tested and approved.

Size: 1-pack

The launcher works very well and will probably last forever unless your dog chews it up while bring it to you to get you to play, but the balls, well, they're not made for labs, that's for sure. That's the bad news. The good news is that worn out or abandon tennis balls fit the launcher just fine. Save your throwing arm. Do your dog(s) a favor. Buy this thing.

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Reviewed in the United States on October 13, 2022

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DoubleM

New York, US

★★★★★ 1

No angle for correct throwing

Size: 1-pack, Size: 1-pack

This item does not work. It is about ) inches tall. It’s tiny to bend over and pick up the ball. Has no angel for the ball to throw accurately. Ball goes downward. Would not recommend

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Reviewed in the United States on June 30, 2024

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Michelle W.

West Palm Beach, US

★★★★★ 5

👍

Size: 1-pack

Good travel size. Works well.

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Reviewed in the United States on August 24, 2025

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