Intake Valve, 1.299 Head Diameter, Duramax | 2001 - 2016

This intake valve replaces GM part number 97366945 (now superseded by 12638805) in the 6.6L Duramax diesel, from the 2001 LB7 through the 2016 LML, including Express and Savana vans and Kodiak and TopKick medium-duty trucks. It is built to the factory dimensions: a 1.299 in head, a 0.274 in stem and a 4.89 in overall length. A bent, burned or worn valve causes low compression, a misfire and hard starting. When a cylinder head is apart for a rebuild, valves with worn faces or stems should be replaced. Each Duramax cylinder uses two intake valves, so a full engine takes 16.

Key Features

• Replaces GM 97366945, 12638805 and 97225507
• Head diameter 1.299 in (33 mm)
• Stem diameter 0.274 in (6.96 mm)
• Overall length 4.89 in (124.2 mm)
• 45 degree seat angle, single lock groove
• Sold individually, 16 per engine
• Individually bagged and labeled by Merchant Automotive

Benefits

A new valve with a fresh face and stem seats properly and seals compression, which restores power and smooth running after head work. For a complete valve job, pair it with the Exhaust Valve, 1.220 Head Diameter, the Intake Valve Seat and the Valve Keepers. Use the 2001-2010 Valve Guide Seal 32 Pack or the 2011-2016 Valve Guide Seal 32 Pack to match your engine.

Fitment

Fits 2001-2016 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD with the 6.6L Duramax diesel: LB7 (2001-2004), LLY (2004.5-2006), LBZ (2006-2007), LMM (2007.5-2010) and LML (2011-2016). Also fits 2006-2016 Chevrolet Express and GMC Savana 2500 and 3500 vans (LLY, LMM and LGH), 2009-2016 Express and Savana 4500, and 2003-2006 Chevrolet Kodiak and GMC TopKick C4500 and C5500 with the 6.6L Duramax.

What's Included

• (1) Intake valve, 1.299 in head diameter