<div class="product-description">
<p>The Merchant Automotive LB7 Injector Gasket Kit includes every seal and gasket needed to reinstall 4 injectors and reseal the lower valve cover on one bank of a 2001–2004 LB7 6.6L Duramax Silverado or Sierra 2500HD/3500HD. On the LB7, the injectors sit under the lower valve cover, so every injector job means removing it. This kit combines our LB7 Injector Seal Kit (copper washers, injector O-rings and body seals), our LB7 Injector Return Line Seal Kit (return line seals and banjo seal) and a new lower valve cover gasket. Reused seals can let fuel leak under the valve cover and into the engine oil, and a reused valve cover gasket can leak oil.</p>
<h2>Key Features</h2>
<ul class="product-features">
<li>Complete injector and lower valve cover reseal for one bank</li>
<li>Injector copper washers, O-rings and body seals for 4 injectors</li>
<li>Large injector return line seals plus the small return line banjo seal</li>
<li>LB7 lower valve cover gasket (GM 97188896)</li>
<li>2 kits required per engine</li>
</ul>
<h2>Benefits</h2>
<ul>
<li>Everything to reseal one bank after injector work, in one package</li>
<li>Prevents fuel leaks under the valve cover and fuel in the oil</li>
<li>Prevents oil leaks at the lower valve cover</li>
</ul>
<h2>Frequently Asked Questions</h2>
<p><b>How many kits do I need?</b><br>Two. Each kit covers one bank (4 injectors and one lower valve cover), so replacing all 8 injectors takes 2 kits.</p>
<p><b>What's the difference between this kit and the 10409 kit?</b><br>This kit adds the lower valve cover gasket. If you only need the injector and return line seals, see our <a href="https://www.merchant-automotive.com/Injector-Seal-and-Return-Line-Kit-Duramax" style="color:#E6994C;">LB7 Injector and Return Line Seal Kit</a>.</p>
<p><b>Can I reuse my old injector seals or valve cover gasket?</b><br>No. The copper washers crush when the injector is torqued, and the O-rings, return line seals and valve cover gasket harden with heat. Reused seals are a common cause of fuel leaks, fuel in the oil and oil leaks on the LB7.</p>
<p><b>Does this kit include the valve cover grommets or bolts?</b><br>No. See our <a href="https://www.merchant-automotive.com/lower-valve-cover-grommet-24-pack-duramax-2001-2004/" style="color:#E6994C;">Lower Valve Cover Grommet 24 Pack</a> and <a href="https://www.merchant-automotive.com/complete-upper-and-lower-valve-cover-bolt-kit-lb7-2001-2004-duramax/" style="color:#E6994C;">Upper and Lower Valve Cover Bolt Kit</a>.</p>
<h2>Fitment</h2>
<ul>
<li>2001–2004 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LB7</li>
<li>2001–2004 GMC Sierra 2500HD / 3500HD 6.6L Duramax LB7</li>
</ul>
<p>Pulling injectors? See our <a href="https://www.merchant-automotive.com/Deluxe-Injector-Removal-Tool-2001-2004-Duramax" style="color:#E6994C;">LB7 Fuel Injector Removal Tool Kit</a>, <a href="https://www.merchant-automotive.com/injector-cup-puller-lb7-10526/" style="color:#E6994C;">LB7 Injector Cup Puller</a> and <a href="https://www.merchant-automotive.com/ma-heavy-duty-injector-return-line-bolt-01-04/" style="color:#E6994C;">Heavy Duty Injector Return Line Bolt</a>. Need extra banjo seals? See the <a href="https://www.merchant-automotive.com/gm-duramax-lb7-fuel-injector-return-line-banjo-seal-3-pack-kit-10383" style="color:#E6994C;">Return Line Small Banjo Seal 3 Pack</a>.</p>
<h2>What's Included</h2>
<ul class="product-includes">
<li>(1) LB7 lower valve cover gasket (GM 97188896)</li>
<li>(4) Injector copper washers (GM 98486346)</li>
<li>(4) Injector O-rings, Viton</li>
<li>(4) Injector body seals, Viton</li>
<li>(4) Large injector return line seals</li>
<li>(1) Injector return line small banjo seal</li>
</ul>
<p>For warranty information or to submit a claim, see our <a href="https://www.merchant-automotive.com/warranty-form" style="color:#E6994C;">Warranty Form</a>.</p>
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