2001–2004 LB7 Duramax Valve Cover Bolts Kit Zinc Plated Upper & Lower Set of 46
2001–2004 Chevy Silverado 2500HD / 3500HD 6.6L LB7 Duramax. 2001–2004 GMC Sierra 2500HD / 3500HD 6.6L LB7 Duramax. This complete kit includes all 46 bolts needed — both upper and lower — with corrosion-resistant zinc plating for long service life.