Availability
PLYMOUTH Pistons & Piston Rings
Pistons, Hypereutectic, Step, 4.342 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB251-STD
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Piston, Cast, Flat, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Small Block, Each
Part Number: UEM-S1273-STD
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Pistons, Forged, Dish, 4.000 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Mopar, Small Block, Set of 8
Part Number: UEM-IC742-STD
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Pistons, Forged, Flat, 4.382 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Mopar, Big Block, Set of 8
Part Number: UEM-IC825-040
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Pistons, Cast, Dish, 93mm Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Mopar, Eagle, V6, Set of 6
Part Number: UEM-3212C-STD
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Pistons, Hypereutectic, Dome, 96.5mm Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Mopar, Set of 6
Part Number: UEM-3214HC-5MM
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Dome, 3.970 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-KB399KTM-060
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Piston, Hypereutectic, Step Dish, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Each
Part Number: UEM-SKB362-STD
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.070 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Each
Part Number: UEM-SKB107-070
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Piston, Hypereutectic, Step, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Each
Part Number: UEM-SKB356-060
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Piston, Hypereutectic, Dome, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Each
Part Number: UEM-SKB373-040
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Pistons, Hypereutectic, Dome, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB191-040
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Pistons, Hypereutectic, Dome, 4.255 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB210-005
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Pistons, Hypereutectic, Step, 4.402 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB215-060
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Pistons, Hypereutectic, Flat, 88.5mm Bore, 1.5mm, 1.5mm, 4.0mm Ring Grooves, Mopar, Set of 4
Part Number: UEM-KB239-1-0MM
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.250 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Each
Part Number: UEM-SKB162-STD
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 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: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Pistons, Hypereutectic, Dome, 4.290 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB211-040
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
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: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Pistons, Hypereutectic, Step, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB356-040
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Dome, 4.040 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-KB191KTM-040
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Step Dish, 4.040 in. Bore, Mopar, Small Block, Kit
Part Number: UEM-KB232KTM-040
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Pistons, Hypereutectic, Dome, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB191-020
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Pistons, FHR Forged, 4.070 in. Bore, Dish, 1.450 in. Compression Height, Press/Float Pin, 1/16 x 1/16 x 3/16 Ring Grooves, Mopar, Set of 8
Part Number: UEM-IC9977070
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Piston, Hypereutectic, Dome, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Each
Part Number: UEM-SKB191L-060
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster