Pistons

Pistons, Premium Forged, 3.918 in. Bore, Dome, 1.209 in. Comp. Height, Press/Float Pin, 1.2mm x 1.2mm x 2.0mm Ring Grooves, w/Rings, Subaru, H4, Kit

Part Number: UEM-IC537CK25MM

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Estimated Ship Date: Feb 18, 2026 if ordered today

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Piston and Ring Kits, Premium, Forged 4032 Aluminum, 3.918 in. Bore, 2.756 in. Stroke, Dish, Subaru, Set of 4

Part Number: UEM-IC992CKSTD

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Estimated Ship Date: Feb 18, 2026 if ordered today

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Pistons, Subaru EJ25 - Ultra Series

Part Number: JEP-361327-4

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Pistons, Premium Forged, 3.918 in. Bore, Dome, 1.209 in. Comp. Height, Press/Float Pin, 1.2mm x 1.2mm x 2.0mm Ring Grooves, w/Rings, Subaru, H4, Kit

Part Number: UEM-IC537CK038MM

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Estimated Ship Date: Feb 18, 2026 if ordered today

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Pistons, Single - Subaru EJ25 - Ultra Series

Part Number: JEP-361330L

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Pistons, Single - Subaru EJ25 - Ultra Series

Part Number: JEP-361330R

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Piston, Forged, Dish, 4-Valve Reliefs, 3.918 in. Bore, 3.110 in. Stroke, 5.138 in. Rod, 1.209 in. Compression, Subaru, Left, Each

Part Number: JEP-291059L

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Piston, Forged, Dish, 4-Valve Reliefs, 3.917 in. Bore, 3.110 in. Stroke, 5.138 in. Rod, 1.209 in. Compression, Subaru, Left, Each

Part Number: JEP-291061L

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Piston, Forged, Dish, 4-Valve Reliefs, 3.917 in. Bore, 3.110 in. Stroke, 5.138 in. Rod, 1.209 in. Compression, Subaru, Right, Each

Part Number: JEP-291061R

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Pistons, Subaru EJ25 - Ultra Series

Part Number: JEP-361330-4

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Pistons, Single - Subaru EJ25 - Ultra Series

Part Number: JEP-361327L

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Estimated Ship Date: Feb 2, 2026 if ordered today

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