andy@partscummins.com
+86 19924579082
Product Overview:
3925878 heavy‑duty upgraded piston for Cummins 6CTA 6CTAA 8.3L 300HP engine. Reinforced ring‑groove structure resists high combustion pressure, built for mining trucks, heavy‑haul machinery and marine duty. Delivers stable performance under continuous severe working conditions.
3925878 Piston Specification:
| Item | Parameter |
|---|---|
| Part Number | 3925878 |
| Supersession / Interchange PN | 4309095 (Direct replacement) |
| Fit Engines | 6CTA, 6CTAA‑8.3, 300HP |
| Manufacturer | DCEC Dongfeng Cummins |
| Displacement | 8.3L |
| Bore | 114 mm (STD standard size) |
| Piston Pin Diameter | 56 mm |
| Ring Grooves | 3 grooves (2 compression rings + 1 oil ring) |
| Material | Eutectic Al‑Si alloy, anodized hardening for top ring groove, with internal oil cooling gallery |
| Combustion Chamber | P60D bowl‑type chamber |
| Matching Piston Pin | 3925879 |
| Matching Circlip | 3901436 |
| Typical Working Conditions | Mining dump trucks, heavy‑duty construction machinery, continuous full‑load marine operation |
✅100% genuine Cummins DCEC parts
✅Professional technical support for fitment verification・
✅Competitive wholesale pricing
✅Fast global shipping
Name: Andy
Mobile：+86 19924579082
Tel：+86 19924579082
Whatsapp：8619924579082
Email：andy@partscummins.com
Add：5F, Block 4, Next Industrial Park, 136 Zhongkang Road, Futian Dist, Shenzhen
We chat
