Vertex Top End Rebuild Kit - KTM 250 EXC-F 14-15 HI COMP 14.5:1 77.97MM (V-23870B)

Vertex Top End Rebuild Kit - KTM 250 EXC-F 14-15 HI COMP 14.5:1 77.97MM (V-23870B)

Marsoni

M251S

$256.12

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

Vertex Top End Rebuild Kit - KTM 250 EXC-F 14-15 HI COMP 14.5:1 77.97MM (V-23870B)VERTEX 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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Used it in a pinch for stater relay... it works great. Be aware... Mine required metric sockets for the nuts... 10mm for large terminals - 3/8 was too tight and same for smaller terminals 7mm fit better than 5/16 that was too loose. The mounting holes are also spaced closer together than the OEM on a mercruiser 260 in a mid 1980's boat but easy to remedy with a 1/4" drill bit.

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Reviewed in the United States on August 4, 2023

Verified Purchase

Don

Phoenix, US

★★★★★ 5

Fixed 4.3 Merc IO

Size: 96158T-1PCS

Engine wouldn't start reliably or consistently. I had no clicking either from the old solenoid even though it would start from time to time...motor starts perfect after install. Pretty easy install as long as you reconnect the right wires. This worked perfect!

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Reviewed in the United States on August 8, 2023

Verified Purchase

Mr Sexy

Carnegie, US

★★★★★ 5

Quality

Size: 96158T-2PCS

Worth the money. Quality. Fit good. Easy too install.

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Reviewed in the United States on September 21, 2025

Verified Purchase

Amazon Customer

New York, US

★★★★★ 5

Solenoid replacement

Size: 96158T-2PCS

No changes were needed, fit exactly as the oem. Happy Happy.

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Reviewed in the United States on September 10, 2025

Verified Purchase

SOmeone

Pawtucket, US

★★★★★ 1

Did not work.

Size: 96158T-2PCS

I went to double check that I can read but it says 35hp-275hp and it sure didn’t work on my 200ho mercury so I do not recommend. If you’re on a time crunch don’t push your luck buy OEM like I am doing right after this review.

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Reviewed in the United States on May 13, 2026