100% Original Part – Not an aftermarket substitute
Manufacturer: Cummins
Every Order Comes With a 90-day Return
This Product Ships From China
The item ships from China about 45-60 days to deliver
The item is in pre-sale
The Cummins 3630986 Plain Hose Coupling is an essential structural link in your engine's plumbing system. In high-output engines like the KTA38-G9, maintaining the integrity of the cooling and air-induction paths is critical to preventing overheating and ensuring turbocharger efficiency. This coupling provides a stable mounting surface that prevents flexible hoses from collapsing or slipping under suction and pressure cycles.
By choosing the genuine 3630986, you avoid the risks of "thin-wall" aftermarket connectors that can deform under the heat and pressure of heavy-duty cycles. Genuine Cummins couplings are designed with the correct surface roughness to "bite" into the hose liner when clamped, providing superior blow-off resistance. For mission-critical standby power, using OEM fittings is the best way to ensure your engine remains leak-free during sudden load applications.
The 3630986 Cummins Plain Hose Coupling is compatible with the following engine power models:
Cummins: KTA38-G2B, KTA38-G4, KTA38-G, KTA38-G2A, KTA38-G9, KTA38-G5
Note: Please confirm that your engine model is compatible before purchasing. You can also contact customer service for assistance at any time.
Specification
Product Name: 3630986 Cummins Plain Hose Coupling
Part Number: 3630986
Part Brand: Cummins
Status: Genuine
Item Dimension: 5*2*2 cm/1.97*0.79*0.79 in
Note: The dimensions are manually measured and may have slight variations.



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