Exhaust Valve. Fits Twin Cam 2005-2017. OEM Replacement.

* Stock length & head diameter

* Triple Groove

* Extreme Duty

* High Flow

* one piece forged racing grade stainless steel alloy.

* Black Nitride process creates a valve that is smoother and stronger than O.E.M.

* Stems are centerless ground for a longer life

* 45o angle below the lock groove to facilitate the valve seal installation

* Replaces OEM # 18085-05

Head Dia = 1.575"

OAL = 4.530"

Stem Dia = 0.2755"