This Cum mins NT855 K1 Full Gasket Kit (Core OE No. 3801330 / 3801468 / 4024945) is a professional heavy-duty sealing solution engineered exclusively for Cum mins NT855 K1, NT855-C, NTA855 inline 6-cylinder turbocharged diesel engines — the legendary power core for 30-50 ton class mining excavators, large bulldozers, and heavy construction machinery.
Designed to match the NT855 K1 engine's 14L (855 cu.in) displacement (140*152mm bore-stroke), 280–480 HP (209–358kW) power output, and 1044–1491 N·m torque range, this gasket kit excels in extreme operating conditions (temperatures up to 650℃, pressure up to 18MPa) common in heavy-duty construction scenarios.
| Compatible Engine | Cum mins NT855 K1, NT855-C, NTA855, NT855-C250/C280/C400 Inline 6-Cylinder 4-Stroke Turbocharged Diesel Engine |
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| Core OE Numbers | Upper Gasket Set: 3801330, 4024945, 3801754; Lower Gasket Set: 3801468, 3801235; Cylinder Head Gasket: 3047402, 3325462 |
| Aftermarket Part No. | CUM MINS-NT855-K1-GASKET-KIT (Independent Site Exclusive) |
| Gasket Type & Material | Graphite Composite Gaskets (non-asbestos, steel core); MLS (Multi-Layer Stainless Steel) Head Gasket; Oil Seals (Fluororubber FKM/NBR); Rubber O-Rings (NBR); Manifold Gaskets (Steel + Graphite) |
| Kit Components | Full Gasket Set: Cylinder Head Gasket, Upper Engine Gasket Set, Lower Engine Gasket Set, Oil Pan Gasket, Valve Cover Gasket, Intake/Exhaust Manifold Gaskets, Turbocharger Gasket, Cylinder Liner O-Rings, Injector Seals, Timing Cover Gasket, Front/Rear Crankshaft Seals, Water Pump Gasket, Thermostat Housing Gasket, All Necessary Seals & O-Rings for NT855 K1 |
| Engine Specs (Fitment) | Displacement: 14L (855 cu.in); Bore * Stroke: 140mm * 152mm; Compression Ratio: 14.0:1; Fuel System: PT (Pressure Time); Rated Speed: 1600–2100 RPM |
| Gasket Performance | Temperature Resistance: -40℃~650℃; Pressure Resistance: Up to 18MPa; Sealing Type: Oil/Water/Gas 3-in-1 Sealing; Compression Permanent Deformation ≤12%; Non-Asbestos, Environmentally Friendly |
| Material Standard | High-Purity Graphite Composite, MLS Stainless Steel, Fluororubber (FKM), Nitrile Rubber (NBR); Meets ASTM D2000 & SAE J1940 Standards |
| Manufacturing Standard | ISO9001/IATF16949 Certified, OEM-Matched Tolerances, 100% Pre-Shipment Sealing Test (0.3MPa Gas/0.5MPa Liquid), Dimensional Accuracy Inspection |
| Compatible Models | Excavators: Komatsu PC300-1, PC300-2, PC400-1 (30-50 ton class) Bulldozers: Komatsu D80A-18, D85A-18, D95S-2; Shantui SD22, SD32 Other: NT855 K1-Powered Mining Trucks, Generator Sets, Construction Machinery |
| Net Weight | Approx. 11–16 kg (24.2–35.3 lbs) |
| Packaging | Neutral Industrial Carton (Export-Standard, Anti-Collision Packaging for Gasket Protection) |
| Warranty Period | 12 Months (Under Normal Heavy-Duty Operating Conditions, Excluding Misinstallation & Engine Contamination) |
| Installation Recommendation | Professional Engine Overhaul Workshop; Cylinder Head Torque: 75Nm + 90° (two-step torque); Clean Sealing Surfaces (Remove Oil Stains & Debris); Use OEM Torque Wrench; Store in Dry, Cool Environment |
If you need this Cum mins NT855 K1 Gasket Kit or any related engine sealing products for your excavators, bulldozers, or other heavy machinery, please feel free to contact us. Our professional team will provide you with detailed product catalogs, customized quotes, bulk order discounts, and technical support to meet your specific maintenance needs.