8N-9245 Caterpillar engine camshaft for engine spare part

Short Description:

8N-9245 Caterpillar engine camshaft, fits 3406 / 3406B / 3406C mechanical engine, controls valve and mechanical injection timing, widely used on D8N dozer, 980C wheel loader, oilfield generator sets and marine power units.

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Product Detail

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Product Advantages

1. OEM low-lift timing profile matched to mechanical pump, stable for continuous constant-load operation
2. One-piece forging with heat-fitted gear, good concentricity and strong fatigue resistance
3. Thick hardened lobe surface resists abrasive wear in dusty sites
4. Gear pre-assembled, reduces timing error from separate gear matching

FAQ

1. Can 8N-9245 interchange with 100-7409?
No. Lift and timing are different. Swap causes poor power, high fuel consumption and smoke.

2. Does it fit 3408 engine?
No. 3406 and 3408 have different bore, stroke and pump plunger travel, non-interchangeable.

3. Can the camshaft stay in service with minor pitting?
Mechanical pump carries heavy impact. Pitting spreads fast and replacement is recommended.

4. Can the fitted gear be reused on an old camshaft?
Not recommended. Gear is heat-fitted and matched; reuse leads to uneven tooth wear and timing shift.