Rebuild with confidence – Ruich Value’s Cummins NT855 Cylinder Block (OEM# 3938460) delivers OEM-grade durability for mining trucks, marine engines, and industrial generators. ISO-certified sand-cast design with bulk discounts for wholesalers.
Product Overview
The Cummins NT855 Cylinder Block is engineered for extreme-duty applications, featuring reinforced cast iron construction to withstand compression ratios up to 16.5:11. Compatible with NT855, N14, and ISM engines, it’s ideal for:
- Mining Equipment: CAT 785D haul trucks, Komatsu HD605-7
- Marine Engines: Auxiliary power units, tugboat propulsion
- Industrial Generators: 500-1500 kVA standby power systems
Key Features
- Sand-Cast Grade 30 Cast Iron: Resists thermal fatigue in high-load environments (up to 2,500 RPM)1.
- Precision Machining: CNC-bored cylinder sleeves (139.7mm diameter) ensure piston alignment accuracy1.
- Multi-Engine Compatibility: Direct replacement for NT855 (OEM# 3938460), N14, and ISM engines.
- Certified Quality: Produced under ISO 9001 & IATF 16949 standards.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Number | 3938460 (Cummins NT855) |
| Material | Grade 30 Cast Iron |
| Bore Diameter | 139.7 mm (5.5″) |
| Deck Height | 432 mm |
| Main Bearing Caps | 7-bolt design with cross-bolted reinforcement |
| Applications | Mining, Marine, Power Generation, Oil & Gas |
Other Supported Cummins Cylinder Blocks
| Engine Model | OEM Number | Key Application |
|---|---|---|
| 6CT (Double Thermo) | 4946587 | High-Temp Industrial Engines |
| X15 | 4311622 | EPA Tier 4 Final Compliance |
| K19 | 3088303 | Mining & Oilfield Machinery |
| QSC8.3 | 4946587 | Marine & Generator Sets |
| ISM11 | 4060393 | Long-Haul Truck Engines |
Custom solutions available! Submit your engine code for tailored quotes.
Why Partner With Us?
- B2B Focus: MOQ 50 units with negotiable bulk pricing.
- Global Stock: Shipped from EU/APAC hubs in 48 hours.
- Quality Assurance: 12-month warranty with MPI test reports.
Contact Us
Email: [email protected]
Phone/WhatsApp: +86 13889277673
Request a Quote Today! Get OEM-grade blocks with bulk pricing and logistics support.
