343-2871 camshaft CAT engine spare part

Short Description:

Part No.343-2871, caterpillar engine camshaft, controls opening and closing timing of intake and exhaust valves, replacement spare part for cat inline heavy-duty diesel engine on excavators and dump trucks.


Product Detail

Product Tags

description

This 343-2871 camshaft is integrally forged from refined alloy steel. Cam profiles are precision CNC ground with uniform hardness after induction hardening. Designed for single-camshaft engine layout, it synchronizes fuel injection and air exchange, fixing slow throttle response, high fuel consumption and valve noise. It is suitable for heavy-duty, dusty and rough construction sites as a key overhaul spare part.

Part No.:343-2871
Name:Engine Camshaft
Material:Corrosion Preventative Fluid
Process:Integral forging + induction hardening + precision grinding
Package:Bare shaft, tappets and gear not included
Application:Diesel engine for caterpillar excavators and mining dump trucks

Product Advantages

• Withstands mechanical stress, without compromising performance or safety
• Helps in controlling the valve timing, the camshaft optimizes the engine’s power output, fuel efficiency, and exhaust emissions

1. Uniform hardened layer by induction hardening, cam lobe resists impact and pitting
2. Strict concentricity control for journals, reduces uneven bearing wear and extends overhaul interval
3. Same cam lift and timing parameters as OEM, no extra timing adjustment after installation
4. Smooth oil passages guarantee stable lubrication and lower risk of shaft seizure under high temperature
5. Full inspection on runout, profile and hardness, suitable for bulk maintenance stock

FAQ 

Q:Can 343-2871 be interchanged with other camshaft part numbers?
A:Interchange is not allowed. Different cam lift and timing curve may cause power loss and valve damage.

Q:Can the camshaft be reused if journals have light scratches?
A:Light scratches can be polished and measured. Deep grooves require immediate replacement to avoid bearing failure.

Q:How to protect camshaft during storage?
A:Hang vertically, apply anti-rust oil, keep dust cover and avoid stacking heavy loads.

Q:What mistake is easy to make during timing assembly?
A:After aligning timing marks, valve lash still needs rechecking. Mark alignment does not guarantee correct clearance.

our warehouse

our warehouse

Pack and ship

Pack and ship




  • Previous:
  • Next:

  • Write your message here and send it to us