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Wiseco Piston Oil Rail Supports

5.0 out of 5 stars 1 Customer Reviews

Wiseco piston oil rail supports are effective in applications where the piston oil ring groove intersects the pinhole. They can be used only in pistons that have the groove machined 0.030 in. wider than the oil ring. They're manufactured from spring steel and install against the bottom sill of the oil ring groove. Available in different bore diameters to suit your specific engine's needs, Wiseco piston oil rail supports will keep your pistons working smoothly throughout the entire operating range.

Results 1 - 25 of 47

Oil Rail Support, Dimpled, 4.038 in. up to 4.075 in. Bore, Each

Part Number: WIS-GLS26

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Oil Rail Support, Dimpled, 4.000 in. up to 4.037 in. Bore, Each

Part Number: WIS-GLS25

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Oil Rail Support, Dimpled, 4.030 in. up to 4.059 in. Bore, Each

Part Number: WIS-W4954

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Oil Rail Support, Dimpled, 4.060 in. up to 4.080 in. Bore, Each

Part Number: WIS-W5080

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Oil Rail Support, Dimpled, 4.290 in. up to 4.350 in. Bore, Each

Part Number: WIS-W5159

5.0 out of 5 stars ( 1 )

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Oil Rail Support, Dimpled, 4.155 in. up to 4.193 in. Bore, Each

Part Number: WIS-W4956

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Oil Rail Support, Dimpled, 3.894 in. up to 3.950 in. Bore, Each

Part Number: WIS-GLS41

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Oil Rail Support, Dimpled, 3.970 in. up to 4.029 in. Bore, Each

Part Number: WIS-W4953

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Oil Rail Support, 3.365 in. up to 3.406 in. Bore, Each

Part Number: WIS-GLS33

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Oil Rail Support, 3.365 in. up to 3.406 in. Bore, Each

Part Number: WIS-GLS20

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Estimated Ship Date: Apr 2, 2026 if ordered today

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Estimated Ship Date: Apr 2, 2026 if ordered today

Oil Rail Support, 3.465 in. up to 3.510 in. Bore, Each

Part Number: WIS-GLS35

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Oil Rail Support, Dimpled, 4.420 in. up to 4.475 in. Bore, Each

Part Number: WIS-W5111

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Oil Rail Support, Dimpled, 4.375 in. up to 4.405 in. Bore, Each

Part Number: WIS-W5110

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Oil Rail Support, Dimpled, 3.795 in. up to 3.845 in. Bore, Each

Part Number: WIS-W5347

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Oil Rail Support, Dimpled, 3.759 in. up to 3.790 in. Bore, Each

Part Number: WIS-GLS5

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Oil Rail Support, Dimpled, 4.076 in. up to 4.113 in. Bore, Each

Part Number: WIS-GLS27

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Estimated Ship Date: Apr 2, 2026 if ordered today

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Oil Rail Support, 3.307 in. up to 3.347 in. Bore, Each

Part Number: WIS-GLS32

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Estimated Ship Date: Apr 2, 2026 if ordered today

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Estimated Ship Date: Apr 2, 2026 if ordered today

Oil Rail Support, 3.523 in. up to 3.565 in. Bore, Each

Part Number: WIS-GLS36

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Oil Rail Support, 3.582 in. up to 3.622 in. Bore, Each

Part Number: WIS-GLS37

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Oil Rail Support, 4.053 in. up to 4.111 in. Bore, Each

Part Number: WIS-W5953

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Oil Rail Support, Dimpled, 4.340 in. up to 4.374 in. Bore, Each

Part Number: WIS-W5158

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Oil Rail Support, Dimpled, 4.081 in. up to 4.120 in. Bore, Each

Part Number: WIS-W5161

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Oil Rail Support, Dimpled, 3.870 in. up to 3.935 in. Bore, Each

Part Number: WIS-W5162

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Oil Rail Support, Dimpled, 4.121 in. up to 4.154 in. Bore, Each

Part Number: WIS-W4955

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Oil Rail Support, Dimpled, 3.331 in. up to 3.369 in. Bore, Each

Part Number: WIS-GLS15

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today