3925400 is the cylinder head fitted to Cummins 6BTA and 6BT engines. It is made from high-Nickel Alloy Cast Iron. Published figures include matching compression ratio 17.5:1, net weight 60–63 kg, valve stem diameter 7.935–7.960 mm. It cross-references 3922691, 3934742, 3934747, 3966452.
Specifications
| Part Number |
3925400 |
| Cross Reference |
3922691, 3934742, 3934747, 3966452, 3966454 |
| Fit Engine |
Cummins 6BT / 6BTA5.9 / QSB5.9 5.9L |
| Valve Layout |
12-valve |
| Matching Compression Ratio |
17.5:1 |
| Net Weight |
60–63 kg |
| Base Material |
High-nickel alloy grey cast iron |
| Valve Stem Diameter |
7.935–7.960 mm |
| Valve Spring |
60lb heavy-duty upgraded spring |
| Valve Stem Seal |
High-temperature Viton seal |
| Max Stable RPM |
3400 RPM, prevents valve float under high boost |
Key Features
- High-Nickel Alloy Cast Iron
- Cross Reference: 3922691, 3934742, 3934747, 3966452, 3966454
- Fit Engine: Cummins 6BT / 6BTA5.9 / QSB5.9 5.9L
- Valve Layout: 12-valve
- Matching Compression Ratio: 17.5:1
- Net Weight: 60–63 kg
Typical Applications
- Diesel generator sets
- Construction machinery
- Marine propulsion engines
- Industrial power units
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
