Cylinder head assembly 3041993 fits Cummins NT855 and NTA855 engines. Cast in high-nickel alloy cast iron, it weighs 115 kg and measures 1080 × 410 × 370 mm. The head runs four valves per cylinder — 24 in total — with 48 mm single-nickel intake seats and 42 mm dual-nickel exhaust seats, at a compression ratio of 14.0:1 to 14.5:1. It ships complete with valves, springs, guides, seats, seals and injector sleeve.
Specifications
| Weight |
115kg |
| Dimension |
1080×410×370mm |
| Main Material |
High strength alloy cast iron |
| Valve Configuration |
4 valves per cylinder, total 24pcs |
| Inlet Valve |
48mm, Single-Ni seat |
| Exhaust Valve |
42mm, Dual-Ni seat |
| Compression Ratio |
14.0:1-14.5:1 |
| Included Components |
Head body, valves, valve springs, guides, seats, seals, injector sleeve |
| Application |
Construction machinery, generator set, marine, oilfield equipment |
Key Features
- High-strength high-nickel alloy cast iron casting
- 115 kg, 1080 × 410 × 370 mm
- Four valves per cylinder, 24 in total
- 48 mm single-Ni intake seats, 42 mm dual-Ni exhaust seats
- Compression ratio 14.0:1 to 14.5:1
- Supplied with valves, springs, guides, seats, seals and injector sleeve
Typical Applications
- Construction machinery
- Generator sets
- Marine engines
- Oilfield equipment
Ordering from Sino Bus Parts
- Wholesale pricing; bulk orders welcome
- Global shipping
- Fitment confirmed against your engine serial or CPL before dispatch
- Contact us on WhatsApp for a quotation
