ATC-8065 / PT-8065 Standard Top Deck Repair Bushing Detroit Diesel 60 Series

The ATC-8065 (PT-8065) Top Deck Repair Bushing is a precisely machined standard replacement insert designed for Detroit Diesel 60 Series engine blocks. It is intended to restore or repair the top deck / shim ledge of the cylinder block when the original surface is worn, damaged, or cracked. Standard size top deck repair counterbore bushing for Detroit Diesel 60 Series.Outside diameter 6.375", and Sleeve Length .602".

When installed correctly into a block, the LS-8065 bushing reinstates a true, concentric surface for liner seating and shim control. This helps maintain proper liner protrusion, improve sealing, and reduce the risk of gasket blowouts or leaks caused by an imperfect top deck.

Key Features & Benefits

• Standard OD  Oversize bushings availible See below

• Standard (nominal) size—no oversize cutting required

• Helps restore accurate liner shim geometry and sealing integrity

• Enables reuse of engine blocks when the upper deck surface is compromised

• Precision machining ensures true alignment and concentricity

Typical Applications

• Repairing worn or damaged top deck surfaces in Detroit Diesel 60 engine rebuilds

• Replacing or reinforcing shim ledge surfaces to restore factory tolerances

• Engine shops and rebuild facilities seeking cost-effective bock repair

Availible Detroit Diesel 60 Series Upper Deck Bushings

1. ATC-8065 Standard
2. ATC-8075 + .010 Oversize
3. ATC-8085 + .020 Oversize
4. ATC-8095 + .030 Oversize