Hot Cams Steel Exhaust Valve for 2000-2002, 2004-2007 Beta/KTM/Polaris 400 EXC Racing & More - 8400038-1

The Hot Cams Steel Exhaust Valve 8400038-1 is designed for the Beta, KTM, Polaris models listed below. It provides an application-specific valvetrain or timing-system component while keeping the product tied to the correct manufacturer part number.

This Hot Cams steel exhaust valve is an application-specific replacement for the listed cylinder head. It is intended for valvetrain rebuilding where the correct valve position, material, stem dimensions, installed height, seat contact, and clearance are confirmed before assembly.

Features

• Steel valve construction
• Exhaust valve position
• Application-specific cylinder-head fitment
• Designed for valve replacement and complete cylinder-head service

Specifications

• Brand: Hot Cams
• Product Type: Valve Exhaust Steel
• Valve Position: Exhaust
• Valve Material: Steel
• Manufacturer Part Number: 8400038-1

Vehicle Fitment

Compatible Make(s): Beta, KTM, Polaris

• 400 EXC Racing (2000-2002, 2004-2007)
• 400 EXC Racing Six Days (2001-2003)
• 400 MXC (2001-2002)
• 400 SX (2000-2002)
• 400 XC-W (2007)
• 450 EXC (2007)
• 450 EXC Racing (2003-2007)
• 450 MXC-G (2003-2004)
• 450 SX (2003)
• 450 SXS (2003)
• 450 XC (2007)
• 450 XC ATV (2008-2010)
• 450 XC-W (2007)
• 520 EXC Racing (2001-2002)
• 520 EXC Racing Six Days (2001-2002)
• 520 EXC-G Racing (2002)
• 520 MXC Racing (2001-2002)
• 520 SX (2001)
• 525 EXC (2003-2007)
• 525 EXC Racing Six Days (2003-2007)
• 525 EXC-G (2003-2006)
• 525 MXC-G (2003-2004)
• 525 SX (2003-2004, 2006)
• 525 SX Supermoto (2004-2005)
• 525 XC (2006-2007)
• 525 XC ATV (2008-2012)
• 525 XC-G (2006)
• 525 XC-W (2007)
• 540 SXS (2001-2004)
• 400 SX (2000-2002)
• 525 EXC (2007)
• 525 MXC-G (2003-2004)
• 525 XC (2007)
• Outlaw 450 MXR (2009)
• Outlaw 450 S (2008, 2010)
• Outlaw 525 IRS (2007-2011)
• Outlaw 525 S (2008-2010)
• RR 4T 400 (2005-2009)
• RR 4T 450 (2005-2009)
• RR 4T 525 (2005-2009)

Fitment Note: Confirm the exact year, model, engine, valve-train configuration, and required component quantity before ordering. Cam timing, valve lash, installed height, spring clearance, and related engine measurements must be verified during installation where applicable.