Muffler Assembly for Cat 933, 933C Track Loader & D3C/D4C III – 1260734

Fits Models At A Glance:

Caterpillar Track Loaders:

• 933
• 933C

Caterpillar Track-Type Tractors:

• D3C III — Serial Number Prefix 7XL
• D4C III — Serial Number Prefix 7SL

Key Notes:

• Part Numbers: 1260734, 126-0734
• Weight: 24.00 lbs (10.91 kg)
• Dimensions: 45.00 cm wide × 51.50 cm deep
• Engine: Fits machines with the Cat 3046 engine
• Type: Exhaust muffler assembly
• Application: Reduces engine noise and routes exhaust gases away from the machine on the 933 and 933C track loaders and the D3C III and D4C III track-type tractors
• Note: Confirmed across all four machines on the Cat 3046 engine — match your serial number prefix (7XL for D3C III, 7SL for D4C III) before ordering

Common Use Case or Symptoms:
Use when the muffler is rusted through, leaking exhaust, excessively loud, or physically damaged — a failed muffler allows exhaust gases and noise to escape at the machine rather than being routed away safely.

Why Choose Broken Tractor:
✅ Direct-Fit for the Cat 3046 Engine Platform — matched to the 933/933C and D3C III/D4C III exhaust application
✅ Complete Muffler Assembly — ready to install, no fabrication needed
✅ Fast Shipping from a U.S.-Based Team — ready to ship from our U.S. warehouses