Engine Parts
Valve Exh St Bd Yz250f 19
Part # 0926-3179
$31.01
NY: 0
National: 12
- —Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel
- —Lightweight, strong, one piece forging with profiles that provide excellent flow characteristics
- —Valve is infused by a special German process to a depth of .002, with a surface build up of .0002 which improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating
- —Each valve is designed using Finite Element Analysis (F.E.A) software, and profiles are tested on a computerized flow bench
- —Stems are coated with black nitroneg
- —Made in the USA
Calculated shipping at checkout
30-day returns on unused parts
Ships in 1–3 business days
Specifications
Stem Diameter4.50 mm
Head Diameter0.984"
MaterialStainless Steel
Product NameValve
SizeStandard
ApplicationExhaust
Head Diameter25.00 mm
Length3.235"
ModelBlack Diamond™
UnitsEach
Riding StyleOff-Road
Stem Diameter0.1760"
Tulip Angle30°
Weight0.06 lbs
Dimensions (L x W x H)3.23" x 0.99" x 0.98"
Fits These Vehicles (7)
YZ250F2025
YZ250F2024
YZ250F2023
YZ250F2022
YZ250F2021
YZ250F2020
YZ250F2019
Not sure it fits? Call our Harley techs at 607-654-7431.













































































