M20111-A Headbolt Hole Repair Fixture — Cummins NT / NH / Big & Small Cam / N14 Detroit 60 Series

The M20111-A Headbolt Hole Repair Fixture is a precision alignment tool engineered for restoring damaged or misaligned headbolt holes in Cummins NT / NH / N14 engines, including both Big Cam and Small Cam variations. Also will do Detroit Diesel 60 Series 

Key Features & Benefits

• Specifically built for Cummins NT, NH, Big Cam, Small Cam, N14 headbolt repair

• Also will do Detroit Diesel 60 Series with included install nut (Use with headbolt)

• Dual-hole fixture supports accurate tap and ream alignment  Allows use on other engine series by adding adapter kits (eg M20111-70)

• Maintains bolt axis, preventing misalignment or head gasket issues

• Durable construction for repeated shop use

• Ideal for heavy duty engine rebuilders, remanufacturers, and service shops

Typical Use Cases

Use the M20111-A in scenarios such as:

• Repairing stripped or cross-threaded headbolt holes

• Rebuilding NT / NH / N14 engine blocks during overhauls

• Rebuilding Detroit Diesel 60 Series