634-2552 left cylinder bank camshaft CAT spare part

Advantages

• Maintains valve timing across the engine speed range.
• Promotes effective fuel combustion and exhaust regulation
• Supports variable valve timing mechanisms.

1. High-power dedicated cam profile, phase matched with 634-2551 for stable power delivery
2. Deep hardened layer, reduce pitting and spalling under continuous high temperature load
3. Strict coaxiality for multiple journals, uniform bearing load and slow eccentric wear
4. Single left bank replacement available, no right bank disassembly required, save overhaul cost

FAQ 

Q1：Can 634-2552 replace 634-2550 left bank camshaft directly?
A：No. Lift and timing calibration differ, they are designed for different power ratings.
Q2：Must 634-2551 right bank camshaft be replaced together with 634-2552?
A：Not mandatory. Inspect right bank camshaft separately and replace it if worn severely.
Q3：What to check first if left bank fuel consumption rises and power drops after installation?
A：Check timing phase, valve clearance, stuck tappets and cam bearing clearance first.
Q4：How to protect cam lobes during long time storage?
A：Clean surface, apply anti-rust oil, wrap with anti-rust paper, support on journals instead of cam lobes.