4S-7869 camshaft CAT engine spare part

4S-7869 camshaft CAT engine spare part Featured Image
  • 4S-7869 camshaft CAT engine spare part
  • 4S-7869 camshaft CAT engine spare part
  • 4S-7869 camshaft CAT engine spare part

Short Description:

Part No.4S-7869, CAT camshaft, fits D342 and G342 engine, drives valve train and controls valve timing, overhaul spare part for old heavy bulldozers and generator sets.


Product Detail

Product Tags

description

This 4S-7869 camshaft is dedicated for CAT D342 large displacement diesel engine. It drives tappets and rockers by cam profile to control intake and exhaust valve timing for stable engine operation. Forged from heavy alloy steel blank, cam lobes are carburized and hardened, with excellent impact and thermal fatigue resistance. It serves old heavy bulldozers and stationary generator sets, core overhaul spare part for D342 engine, cross reference 0R-4492.

Part No.：4S-7869
Name：CAT camshaft
Material: Carbon Steel
Application：CAT D342 / G342 engine
Cross reference：0R-4492
Drive type：Gear timing drive
Surface treatment：Cam lobe carburizing and quenching

Advantages

1. Cam lift follows OEM D342 specification, balanced air flow for large displacement, strong low-speed heavy load power
2. Thick carburized hardened layer, anti-pitting and anti-spalling under long high-temperature continuous load
3. Strict coaxiality of multiple journals, uniform clearance with cam bearings and stable lubrication
4. Factory dynamic balance, low vibration under high torque, reduce risk of valve train noise and fracture

FAQ 

Q1：Can 4S-7869 be directly replaced with 0R-4492?
A：Yes, they are cross-reference parts with identical dimension and cam profile.
Q2：Is tappet replacement recommended together with camshaft for D342?
A：Replacement is recommended. Mismatched old and new friction pairs will easily score cam lobes.
Q3：What commonly causes heavy resistance when turning crank after assembly?
A：Misaligned timing marks, too small valve clearance or over-tight bearings. Do not force cranking.
Q4：How to do anti-rust treatment for camshaft storage?
A：Clean cam surface, apply long-term anti-rust oil, wrap with anti-rust paper and support on multi-point bracket.

our warehouse

our warehouse

Pack and ship

Pack and ship


  • Previous:
  • Next:
    • Write your message here and send it to us

    Products categories