This brand-new bull gear is a direct replacement for Detroit Diesel Series 60 12.7L engines, responsible for driving key engine components including the camshaft, fuel pump, and air compressor. Built to OEM specifications, it ensures precise gear timing, optimal performance, and long-lasting durability in high-demand diesel applications.

Fits:

• Detroit Diesel Series 60 12.7L
  (Typically DDEC III & IV systems – confirm with engine serial number)

OEM Reference:

• 8929168

Condition: Brand new, OEM-spec replacement
Application: Bull gear (timing gear) for camshaft/fuel pump drive

Features & Benefits:

• Precision-machined and heat-treated for long service life

• Ensures proper timing system function and engine performance

• Direct bolt-on fit – no modifications required

• Ideal for in-frame overhauls, timing gear replacements, or preventative maintenance

• Manufactured to withstand the demands of heavy-duty engine operation

Note:
Timing cover gasket, thrust washer, and retaining hardware are sold separately unless bundled. Always confirm fitment using your engine serial number (ESN) for accuracy.