4P-8338 rear camshaft CAT engine spare part

Advantages

• 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

1. Exclusive rear locating shoulder, different cam lift from front camshaft for stable timing phase
2. Uniform hardened layer, cam lobes resist softening under continuous high temperature, reliable durability
3. Strict roundness tolerance of journals, reduce bearing eccentric wear and abnormal oil pressure risk
4. Factory dynamic balance calibrated for rear transmission load, low running vibration and protect cylinder head valve parts

FAQ 

Q1：Can 4P-8338 rear camshaft be installed on single-cam 3304 engine?
A：No. The valve train structure of single-cam version is different, not compatible.
Q2：Must front camshaft be replaced together with 4P-8338 rear camshaft?
A：Single replacement is acceptable. Inspect front camshaft carefully, replace both if worn seriously.
Q3：What parts should we check first for intermittent noise from rear camshaft?
A：Check cam bearing clearance, stuck tappets and timing mark alignment first.
Q4：Is it ok to support the camshaft only by two end journals during storage?
A：Long shaft may sag if only supported at both ends, add middle support points.