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Upper Engine Gasket Set Top End Overhaul Seal Kit Description
Product Overview
Our Cum mins N14 Upper Engine Gasket Set is a premium OEM-grade top-end sealing solution specially engineered forCum mins N14, N14 CELECT, CELECT+ and NTA14 heavy-duty 14L diesel engines. This complete upper gasket kit covers all professional sealing components required for top-end overhaul, cylinder head replacement, valve train service and upper engine in-frame repair. It thoroughly eliminates common upper engine failures including cylinder head blowing, coolant cross-leakage, intake/exhaust air leakage, valve cover oil seepage and compression pressure loss. Adopting upgraded reinforced MLS multi-layer steel and high-temperature anti-aging composite materials, this N14 top end gasket kit delivers outstanding high-pressure resistance, heat stability and fatigue resistance, perfectly adapting to heavy-load, high-temperature and long-hour continuous operation of N14 series heavy-duty engines, effectively restoring full engine power and eliminating recurring top-end seal failures.
Compatible Engine & Equipment Applications
This Cum mins N14 top end gasket set strictly complies with OEM dimensional and tolerance standards, achieving 100% precise direct fit for all Cum mins N14 series heavy-duty diesel engines, including standard N14, N14 CELECT and N14 CELECT+ versions. It serves as a dedicated top-end repair kit for global heavy-duty commercial and industrial equipment:
Heavy-Duty Semi-Trucks: Freightliner, Kenworth, Peterbilt, International long-haul trucks equipped with Cum mins N14 powertrain
Large Construction Machinery: Heavy loaders, motor graders, off-road dump trucks and mining engineering machinery powered by N14 industrial engines
Industrial Power Generation Units: Stationary diesel generator sets, emergency power supply systems and continuous-operation industrial power equipment
Marine & Special Heavy Equipment: Commercial marine auxiliary diesel engines and large industrial supporting power devices
Official OEM Part Numbers
Item
OEM Part Number
Complete Upper Engine Gasket Set
4089368 / 4089371
Alternative Top Overhaul Kit
3803606 / 3803444
MLS Cylinder Head Gasket
3076831 / 4022133
Kit Components List
This Cum mins N14 upper gasket kit provides fully complete OEM-matched top-end sealing parts for professional engine overhaul, covering all upper engine sealing positions with no missing parts or extra auxiliary purchases required. All components are precision manufactured to original factory assembly standards:
Upgraded thickened MLS multi-layer steel cylinder head gasket, anti-blowout and high-pressure resistant for 14L high-power engines
Full set of heat-resistant valve stem oil seals, preventing valve train oil leakage and blue smoke emission
Heavy-duty reinforced valve cover gasket with excellent compression resilience and vibration resistance
Precision intake manifold & exhaust manifold gaskets for tight air sealing and stable intake/exhaust efficiency
Upper engine cooling system gaskets and coolant passage sealing rings to avoid coolant leakage and engine overheating
Turbocharger mounting gasket and upper engine auxiliary O-ring seal set
All matched upper engine paper gaskets, rubber seals and precision sealing accessories
Key Features & Advantages
100% OEM Exact Fit & Zero Modification: Manufactured strictly according to Cum mins original factory specifications and precision tolerance standards. This N14 upper gasket set supports direct bolt-on installation without cutting, grinding or secondary modification, perfectly matching stock N14, CELECT and CELECT+ engines, eliminating assembly gaps and hidden leakage risks.
Upgraded MLS Anti-Blowout Sealing Performance: Adopts upgraded multi-layer steel composite structure and high-temperature resistant materials, specially optimized for N14 14L large-displacement high-power engines. It effectively resists extreme combustion pressure and ultra-high operating temperature, thoroughly solving the common failure of head gasket blowout, maintaining stable cylinder compression and original engine power output.
Extreme High-Temperature & Anti-Aging Durability: All sealing accessories adopt premium oil-resistant, heat-resistant and anti-aging composite materials. They maintain stable sealing performance under long-term high-temperature, high-vibration and heavy-load working conditions, avoiding seal hardening, aging and failure caused by long-hour continuous operation, greatly extending top-end maintenance cycles.
Full Top-End Fault Repair Capability: This all-in-one N14 upper gasket kit completely covers all upper engine sealing points, one-time solving typical faults such as cylinder pressure drop, engine overheating, air leakage, coolant mixing and valve train oil seepage, realizing thorough and permanent top-end repair.
Cost-Effective & Downtime Reduction: Effectively eliminates recurring top-end sealing failures of N14 series engines, avoiding repeated disassembly and maintenance. It significantly reduces equipment downtime loss and daily operating costs, fully restoring engine operational stability and fuel economy for heavy-duty equipment.
Important Compatibility Notes
This Cum mins N14 upper engine gasket set is exclusively designed for Cum mins N14, N14 CELECT, CELECT+ and NTA14 14L heavy-duty diesel engines. It cannot be interchanged with other Cum mins engine series such as M11, X15, K19, ISF and 6BT due to differences in cylinder structure, top-end layout and sealing parameters. Please confirm your exact engine version and matching OEM part number before ordering to avoid installation mismatch and mechanical failure.
Warranty & Service
Cum mins N14 upper gasket sets. Every kit undergoes strict multi-process factory inspection on material durability, compression performance and dimensional accuracy, providing reliable and long-lasting top-end sealing protection for heavy-duty trucks, mining machinery and industrial power generation units.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Ecer Certification：
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Guangzhou Tianhe District Qianjin Yiling Machinery Parts Business Department, established in 2013, is a professional supplier focusing on high-performance engine repair kits and cylinder gaskets for construction machinery excavators, boasting solid capabilities in both standard product supply and cu... Guangzhou Tianhe District Qianjin Yiling Machinery Parts Business Department, established in 2013, is a professional supplier focusing on high-performance engine repair kits and cylinder gaskets for construction machinery excavators, boasting solid capabilities in both standard product supply and cu...
