4P-8321 camshaft assembly CAT engine spare part

4P-8321 camshaft assembly CAT engine spare part Featured Image
  • 4P-8321 camshaft assembly CAT engine spare part
  • 4P-8321 camshaft assembly CAT engine spare part

Short Description:

Part No.4P-8321, CAT camshaft assembly, fits 3304 engine, integrated with camshaft and thrust flange, drives valve train and controls valve timing, overhaul spare part for old loaders and bulldozers.


Product Detail

Product Tags

description

This 4P-8321 camshaft assembly is dedicated for CAT 3304 engine, equipped with integrated thrust positioning structure. It drives tappets and rockers via cam profile to precisely control intake and exhaust valve timing for stable engine operation. Forged from alloy steel, cam lobes are medium-frequency hardened, thrust surface precision ground, resisting axial movement, wear and impact. It is suitable for long continuous operation of field construction equipment and generator sets, a complete replacement assembly for 3304 engine valve train overhaul.

Part No.：4P-5457
Name：CAT gear assembly
Height (mm): 96.52
Width (mm): 370.84
Length (mm): 391.16
Matching part：4P-4332 camshaft
Gear type：Helical gear
Surface treatment：Tooth carburizing & quenching

Application：G3508 gas engine, G3508 generator set, G3508 generator set engine, SR4B generator

Advantages

1. Pre-assembled integrated thrust flange, controllable axial clearance and less camshaft axial noise
2. Cam lift follows OEM specification, accurate valve timing and stable low-speed torque
3. High precision ground thrust surface, strong axial load capacity and slow thrust plate wear
4. Complete assembly ready for installation, no extra thrust parts selection, save overhaul time

FAQ 

Q1：Can 4P-8321 be interchanged with 4P-4332 camshaft?
A：No. 4P-8321 has integrated thrust flange with different structure, not direct replacement.
Q2：Can the assembly be used with scratches on thrust flange?
A：Light scratches can be monitored temporarily. Replace whole set if grooves, peeling or deformation occurs.
Q3：Is axial clearance adjustment required after installing this camshaft assembly?
A：Yes, re-measure and adjust axial clearance according to OEM spec after assembly.
Q4：What causes excessive axial movement of camshaft?
A：It is mainly caused by worn thrust surface, thin thrust plate or out-of-spec assembly clearance.

our warehouse

our warehouse

Pack and ship

Pack and ship


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

    Products categories