453-1873 rear camshaft CAT engine spare part

Short Description:

Part No.453-1873, caterpillar rear camshaft for motor grader, receives timing torque from front camshaft, controls valve and fuel timing for rear cylinders, matched with grader assembly 453-1872, shaft only without gear.


Product Detail

Product Tags

description

This 453-1873 rear camshaft is forged from fine-grain alloy steel. Its cam profile is optimized for rear cylinders of grader to improve exhaust scavenging during long leveling work. It connects to front camshaft via flange coupling with integrated thrust shoulder. Gear and spacer are sold separately. It solves weak rear-bank power, high exhaust temperature and coupling noise under sustained grading load. It must be paired with front grader camshaft and is not interchangeable with loader, excavator or compressor camshafts.

Part No.:453-1873
Name:Rear Camshaft for Motor Grader
Material:Fine-grain alloy steel
Process:Integral forging, carburizing quenching, segmented precision grinding, cam profile inspection, flange runout check
Package:Camshaft only, gear, thrust washer and spacer sold separately
Application:Cat motor grader, subgrade leveling and slope cutting power unit

Advantages

1. Rear-bank cam profile with extended exhaust duration, reducing carbon buildup during long continuous grading
2. Integrated thrust shoulder, minimizing axial shift caused by worn thrust washers and stabilizing timing
3. Uniform hardened journal surface, good resistance to fatigue wear under steady moderate alternating load
4. Split single shaft layout, replace only rear segment instead of full timing assembly to cut overhaul cost
5. Cam lift, concentricity and flange alignment checked individually, convenient for separate spare stocking

FAQ 

Q:Can 453-1873 grader rear camshaft replace grader assembly 453-1872?
A:Not interchangeable. Different mounting and timing design will cause binding and valve collision.

Q:Can the camshaft be reused after light journal scratches polished?
A:It can be used temporarily within tolerance. Deep grooves require replacement to avoid seizure during grading.

Q:How to store this rear camshaft?
A:Rest horizontally on multi-point supports, coat cams, journals and flange with anti-rust grease and cover with dust shield.

Q:Is oil and filter change recommended after installation?
A:Recommended, to prevent hard particles from scratching new cam lobes.

our warehouse

our warehouse

Pack and ship

Pack and ship




  • Previous:
  • Next:

  • Write your message here and send it to us