Availability
Pistons, KB Performance, 4.000 in. Bore, Step, 1.465 in. Compression Height, Press/Float Pin, 5/64 x 5/64 x 3/16 Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB416-STD
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Pistons, Hypereutectic, Dome, 3.930 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB399-020
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Pistons, Hypereutectic, Dome, 3.940 in. Bore, Chrysler, Dodge, Plymouth, Set of 8
Part Number: UEM-KB399-030
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Pistons, Hypereutectic, Dome, 3.910 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB399-STD
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Pistons, Hypereutectic, Step, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB356-STD
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Step Head, 4.020 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-KB356KTM-020
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Pistons, Hypereutectic, Flat, 4.100 in. Bore, Dodge, Plymouth, Set of 8
Part Number: UEM-KB243-060
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Flat, 4.040 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-KB243KTM-STD
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Pistons, Hypereutectic, Quench Head, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in., Mopar, Set of 8
Part Number: UEM-KB373-020
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Pistons, Hypereutectic, Quench Head 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB373-060
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Pistons, Hypereutectic, Quench Head 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB373-STD
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Dome, 4.020 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-KB373KTM-020
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Dome, 4.060 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-KB373KTM-060
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Dome, 4.000 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-KB373KTM-STD
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Piston and Ring Kit, PowerPak, 4.030 in. Bore, 4.000 in. Stroke, 6.123 in. Rod, Dish, Forged, Mopar, Small Block LA, Kit
Part Number: MLE-930271130
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
Pistons, Forged, Dish, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Mopar, Small Block, Set of 8
Part Number: UEM-IC742-030
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Piston and Ring Kit, Forged, 4.030 in. Bore, Chrysler, Dodge, Plymouth, Kit
Part Number: MLE-930270230
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
Piston and Ring Kit, Forged, Flat, 3.950 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-IC846KTD-040
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Pistons, Forged, Flat, 3.940 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Mopar, Small Block, Set of 8
Part Number: UEM-IC844-030
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Pistons, Forged, Flat, 3.970 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Mopar, Small Block, Set of 8
Part Number: UEM-IC844-060
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Piston and Ring Kit, Forged, Flat, 3.950 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-IC844KTD-040
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Pistons, Forged, Dome, 3.950 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Mopar, Small Block, Set of 8
Part Number: UEM-IC845-040
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Piston and Ring Kit, Forged, Dome, 3.940 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-IC845KTD-030
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Piston and Ring Kit, Forged, Dome, 3.970 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-IC845KTD-060
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
Pistons, Forged, Dome, 3.940 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Mopar, Small Block, Set of 8
Part Number: UEM-IC845-030
Not Yet Reviewed
Estimated Ship Date: Jan 12, 2026 if ordered today
Estimated Ship Date: Jan 12, 2026 if ordered today
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