Exhaust Muffler (Turbo) for John Deere 450J–650J Dozers & 230LCR Excavators – AT220299

Fits Models At A Glance:

• John Deere Crawler Dozers — Turbo Only:
  • 450J (Before Serial Number 159986)
  • 550H
  • 550J (Before Serial Number 159986)
  • 650H
  • 650J (Before Serial Number 159986)
• John Deere Excavators — Turbo Only:
  • 230LCR
  • 230LCRD

Key Notes:

• Part Number: AT220299
• Weight: 18 lbs (8.16 kg)
• Inlet Size: 4-1/8"
• Outlet Size: 2-3/8"
• Overall Length: 24-1/2"
• Diameter: 7-3/4"
• Application: Engine exhaust muffler — reduces exhaust noise while maintaining proper exhaust backpressure on turbocharged engine configurations of applicable John Deere crawler dozers and excavators
• Serial Number Note: 650J fitment applies to machines Before Serial Number 159986 only
• Important: Fits turbocharged engines only — non-turbo machines require a different muffler. Will NOT fit 650J LGP — confirm your model configuration before ordering

Common Use Case or Symptoms: Use when the muffler is rusted through, cracked, has blown-out baffles, or has damaged inlet and outlet flanges — a failed muffler causes excessive exhaust noise, loss of proper backpressure, and raw exhaust discharge near the operator on applicable John Deere crawler dozers and excavators.

Why Choose Broken Tractor:

• ✅ Turbo-Specific Fitment Verified: AT220299 is specifically identified for turbocharged engine configurations — confirm your machine has a turbocharger before ordering to ensure correct exhaust backpressure and proper inlet/outlet flange fitment
• ✅ Precise OEM Dimensions: 4-1/8" inlet, 2-3/8" outlet, 24-1/2" overall length, and 7-3/4" diameter — direct bolt-on replacement with no modification required on applicable John Deere dozers and excavators
• ✅ Fast Shipping from a U.S.-Based Team: In-stock and ready to ship from our U.S. warehouses