Product Overview:
The 4025271 is genuine upper gasket overhaul kit for Cummins 6CT8.3/6CTA8.3 diesel engines, serving as the core mainstream repair part for upper engine maintenance. It covers full upper sealing accessories to eliminate oil and air leakage. Widely applicable to heavy-duty trucks, construction machinery, generator sets and marine industrial equipment, it adapts to high-load and long-duration working conditions. With strong universality and stable interchangeability, it is the preferred stock part for global repair shops for routine overhaul and fault repair of 6CT series engines.
4025271 Upper Gasket Set Specification:
| Item | Specification |
|---|---|
| Part Number | 4025271 (Upper Engine Gasket Set) |
| Interchange PN | 5579026, 3800750, 3802360, 3802268 |
| Compatible Engine | Cummins 6CT8.3 / 6CTA8.3 (8.3L, inline 6‑cylinder, bore 114mm) |
| Kit Contents | Cylinder head gasket, intake manifold gasket, 6 pcs exhaust manifold gaskets, full set valve stem seals, rocker cover gasket & bolt seals, injector gaskets, assorted O‑rings, copper washers, lock tabs |
| Gross Weight | 3.5 kg |
| Package Dimensions | 345 ×130 ×19 mm |
| Power Range | 220‑300HP for 6CT series |
| Application | Heavy‑duty trucks, excavators, construction machinery, land‑based generator sets |
Why Choose US?
✅100% Genuine Parts: Directly supplied by DCEC with official certification
✅Wholesale Discounts: Tiered pricing for bulk orders and long-term cooperation
✅Professional Support: Free technical guidance from certified engineers
✅Fast Global Delivery: 24h dispatch, worldwide shipping in 3-15days
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