258-8835 Caterpillar rear engine camshaft for engine spare part

258-8835 Caterpillar rear engine camshaft for engine spare part Featured Image
  • 258-8835 Caterpillar rear engine camshaft for engine spare part
  • 258-8835 Caterpillar rear engine camshaft for engine spare part

Short Description:

258-8835 Caterpillar rear engine camshaft, fits C15 inline six-cylinder engine, controls intake and exhaust valve and fuel drive timing for rear cylinders, widely used on 777 mining dump trucks, large wheel loaders and oilfield stationary power units.


Product Detail

Product Tags

description

The 258-8835 is dedicated rear camshaft for C15 engine, matched with front camshaft. It drives roller lifters of rear cylinders and synchronizes valve and fuel pump events. This heavy-duty engine runs continuously under heavy shock load in mines and oilfields. Lobe pitting, spalling or journal scoring causes unbalanced cylinder performance, power loss, high exhaust temperature and excessive fuel consumption. Severe damage triggers valve-to-piston contact. Its timing profile is exclusive for rear section and cannot be swapped with front camshaft.

Part No.：258-8835
Name：Rear Engine Camshaft (without gear)
Fit Models：CAT C15
Equipment：777 mining truck, 988H wheel loader, industrial generator set
Material：Forged alloy steel with induction hardened cam lobes
Matching Components：Roller lifters, cam bearings, timing gear, thrust washer

Product Advantages

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

Applications:
An Engine Rear Camshaft to precisely control the opening and closing of the engine valves. As the lobes come into contact with the valve lifters, pushrods, or cam followers, they impart the necessary motion to open and close the valves and ensure the correct timing and duration of valve operation, influencing engine performance and efficiency.

FAQ 

1. Can 258-8835 be installed on the front side?
No. Front and rear camshafts have different lift and timing, mixing them breaks engine timing.

2. Does it fit C18 engine?
No. C15 and C18 differ in journal size, cam lift and timing parameters, non-interchangeable.

3. Can the camshaft stay in service with minor scattered pitting and no cracks?
Pitting spreads rapidly under mining truck shock load, replacement is recommended.

4. What risk if I install new camshaft and reuse old lifters?
Mismatched contact surfaces accelerate lobe spalling during break-in and lead to early failure.

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