7E-5539 camshaft assembly CAT engine spare part

7E-5539 camshaft assembly CAT engine spare part Featured Image
  • 7E-5539 camshaft assembly CAT engine spare part
  • 7E-5539 camshaft assembly CAT engine spare part
  • 7E-5539 camshaft assembly CAT engine spare part

Short Description:

Part No.7E-4863, CAT fuel injection pump camshaft, installed inside mechanical injection pump, drives plunger movement to control injection timing and fuel delivery, overhaul spare part for classic heavy-duty CAT diesel pump.


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description

This 7E-5539 is complete camshaft assembly including main camshaft, woodruff key and thrust matching parts for one bank of 3516/3516B dual bank engine. Factory calibrated lobe lift and timing drive valve tappets to control intake and exhaust valve sequence. Forged alloy steel blank with deep high-frequency hardened and precision ground cam lobes. It resists heavy load and thermal cycling, widely used on 789B,793B mining truck, 5230 excavator, marine engine and generator set. Cam bearings, thrust washers and tappets are normally replaced together during overhaul.

Part No.：7E-5539
Name：CAT camshaft assembly
Fit engine：3516, 3516B
Mounting position：Single cylinder bank
Structure：One-piece single bank camshaft assembly
Material：Alloy steel forging
Surface treatment：Deep high-frequency hardening, mirror grinding

Advantages

1. Calibrated cam profile for 3516B, balanced cylinder combustion and stable high power output
2. Sufficient hardened layer, anti-pitting, anti-spalling and anti-scoring for long continuous running
3. Coaxiality inspected before delivery, lower risk of eccentric bearing wear and seizure
4. Single bank assembly, independent overhaul available without disassembling opposite bank, save service time

FAQ 

Q1：Can 7E-5539 fit 3508 engine directly?
A：No. Lobe quantity, layout and timing are different, only for 3516 and 3516B.

Q2：Must the opposite bank camshaft be replaced together?
A：Not mandatory. Inspect the other camshaft separately and replace if worn severely.

Q3：What typical faults will worn camshaft assembly cause?
A：Valve train noise, low power on single bank, unbalanced exhaust temperature, high fuel consumption and rough idle.

Q4：Can old cam bearings be reused with new camshaft?
A：Not recommended. Bearings and journals are mating friction pairs, better to replace together.

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