The Story
With the shallow head on the stock bolt in the LB7 Duramax engine, it is common for the head to round out during removal. The Merchant Automotive Heavy Duty LB7 Injector Return Line Bolt has been redesigned to allow nearly double the tool engagement. Proper engagement of the Allen wrench is crucial for accurate torque during reassembly to avoid a fuel leak at the return line fitting. The unique head shape offers the needed strength while maintaining proper clearance on other engine components. Each kit comes with 8 bolts, enough for one engine.
Description
With the shallow head on the stock bolt in the LB7 Duramax engine, it is common for the head to round out during removal. The Merchant Automotive Heavy Duty LB7 Injector Return Line Bolt has been redesigned to allow nearly double the tool engagement. Proper engagement of the Allen wrench is crucial for accurate torque during reassembly to avoid a fuel leak at the return line fitting. The unique head shape offers the needed strength while maintaining proper clearance on other engine components. Each kit comes with 8 bolts, enough for one engine.
