POLARIS Namura Engines & Components

Repair Kit, Top End, 99.150mm Bore, 10.80 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50005K

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Estimated Ship Date: Dec 31, 2025 if ordered today

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Piston Rings, Powersports, Steel, Gas Nitrided Top, 99.20mm Bore, Polaris, Kit

Part Number: NTI-NA-50005R

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Piston Rings, Powersports, Steel, Gas Nitrided Top, 83.00mm Bore, Polaris, Kit

Part Number: NTI-NA-50002R

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Repair Kit, Top End, 93.47mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50004-6K

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TOP END REPAIR KIT

Part Number: NTI-NA-50070-BK1

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Repair Kit, Top End, 79.960mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50080-BK

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Repair Kit, Top End, 75.97mm Bore, 8.60 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50003K

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Repair Kit, Top End, 92.47mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50004-2K

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50015-2K

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Repair Kit, Top End, 74.97mm Bore, 8.60 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50003-2K

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Estimated Ship Date: Jan 5, 2026 if ordered today

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Repair Kit, Top End, 75.47mm Bore, 8.60 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50003-4K

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Estimated Ship Date: Jan 5, 2026 if ordered today

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TOP END KIT TWIN CYLINDER 90.42/STD POL

Part Number: NTI-NA-50093K

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Estimated Ship Date: Dec 30, 2025 if ordered today

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RING SET

Part Number: NTI-NA-50000-4R

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Estimated Ship Date: Dec 31, 2025 if ordered today

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RING KIT

Part Number: NTI-NA-50000-6R

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Estimated Ship Date: Dec 31, 2025 if ordered today

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Piston Rings, Powersports, Steel, Gas Nitrided Top, 72.00mm Bore, Polaris, Kit

Part Number: NTI-NA-50000R

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Estimated Ship Date: Dec 31, 2025 if ordered today

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Repair Kit, Top End, 83.44mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-2K

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Estimated Ship Date: Dec 31, 2025 if ordered today

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Repair Kit, Top End, 83.94mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-4K

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Estimated Ship Date: Dec 31, 2025 if ordered today

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Repair Kit, Top End, 84.44mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-6K

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Estimated Ship Date: Dec 31, 2025 if ordered today

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Repair Kit, Top End, 82.94mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002K

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Estimated Ship Date: Dec 31, 2025 if ordered today

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RING KIT

Part Number: NTI-NA-50003-2R

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Estimated Ship Date: Dec 31, 2025 if ordered today

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RING KIT

Part Number: NTI-NA-50004-2R

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Repair Kit, Top End, 92.97mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50004-4K

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Estimated Ship Date: Dec 31, 2025 if ordered today

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RING KIT

Part Number: NTI-NA-50004-4R

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Estimated Ship Date: Dec 31, 2025 if ordered today

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Repair Kit, Top End, 91.97mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50004K

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Estimated Ship Date: Dec 31, 2025 if ordered today

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Piston Rings, Powersports, Steel, Gas Nitrided Top, 92.00mm Bore, Polaris, Kit

Part Number: NTI-NA-50004R

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Estimated Ship Date: Dec 31, 2025 if ordered today

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