Cylinder Head Bolts Not Included; Cylinder Head Bolt Replacement Recommended<p>This Part Fits:</p><table border="1"> <tr> <th align="left" width="100">Year</th> <th align="left" width="125">Make</th> <th align="left" width="150">Model</th> <th align="left" width="80">Submodel</th> </tr> <tr> <td>2001-2004</td> <td>Chevrolet</td> <td>Silverado 2500 HD</td> <td>Base</td> </tr> <tr> <td>2001-2004</td> <td>Chevrolet</td> <td>Silverado 2500 HD</td> <td>LS</td> </tr> <tr> <td>2001-2004</td> <td>Chevrolet</td> <td>Silverado 2500 HD</td> <td>LT</td> </tr> <tr> <td>2004-2005</td> <td>Chevrolet</td> <td>Silverado 2500 HD</td> <td>WT</td> </tr> <tr> <td>2001-2004</td> <td>Chevrolet</td> <td>Silverado 3500</td> <td>Base</td> </tr> <tr> <td>2001-2004</td> <td>Chevrolet</td> <td>Silverado 3500</td> <td>LS</td> </tr> <tr> <td>2001-2004</td> <td>Chevrolet</td> <td>Silverado 3500</td> <td>LT</td> </tr> <tr> <td>2004</td> <td>Chevrolet</td> <td>Silverado 3500</td> <td>WT</td> </tr> <tr> <td>2002-2004</td> <td>GMC</td> <td>Sierra 2500 HD</td> <td>Base</td> </tr> <tr> <td>2001-2002</td> <td>GMC</td> <td>Sierra 2500 HD</td> <td>SL</td> </tr> <tr> <td>2001-2004</td> <td>GMC</td> <td>Sierra 2500 HD</td> <td>SLE</td> </tr> <tr> <td>2001-2004</td> <td>GMC</td> <td>Sierra 2500 HD</td> <td>SLT</td> </tr> <tr> <td>2003-2004</td> <td>GMC</td> <td>Sierra 2500 HD</td> <td>WT</td> </tr> <tr> <td>2002-2004</td> <td>GMC</td> <td>Sierra 3500</td> <td>Base</td> </tr> <tr> <td>2001-2002</td> <td>GMC</td> <td>Sierra 3500</td> <td>SL</td> </tr> <tr> <td>2001-2004</td> <td>GMC</td> <td>Sierra 3500</td> <td>SLE</td> </tr> <tr> <td>2001-2004</td> <td>GMC</td> <td>Sierra 3500</td> <td>SLT</td> </tr> <tr> <td>2004</td> <td>GMC</td> <td>Sierra 3500</td> <td>WT</td> </tr> </table>