Availability
Pistons
Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock
Part Number: SUM-326S454040-2
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pistons, Hypereutectic, Dome, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-9903HC-040
Not Yet Reviewed
Estimated Ship Date: May 22, 2026 if ordered today
Estimated Ship Date: May 22, 2026 if ordered today
Pistons, Hypereutectic, Dish, 4.040 in. Bore, Chevy, GMC, Set of 8
Part Number: SLP-H815DCP40
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pistons, Hypereutectic, Flat, 4.040 in. Bore, 1.5mm, 1.5mm, 4.0mm Ring Grooves, Ford, Set of 8
Part Number: UEM-3173HC-040
Not Yet Reviewed
Estimated Ship Date: May 22, 2026 if ordered today
Estimated Ship Date: May 22, 2026 if ordered today
Pistons, Cast, Dish, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Small Block, Set of 8
Part Number: UEM-1441-040
Not Yet Reviewed
Estimated Ship Date: May 22, 2026 if ordered today
Estimated Ship Date: May 22, 2026 if ordered today
Pistons, Hypereutectic, Dish, 4.040 in. Bore, 1.5mm, 1.5mm, 4.0mm Ring Grooves, Mopar, Set of 8
Part Number: UEM-3222HC-040
Not Yet Reviewed
Estimated Ship Date: May 21, 2026 if ordered today
Estimated Ship Date: May 21, 2026 if ordered today
Pistons, Hypereutectic, Dish, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-1476HC-040
Not Yet Reviewed
Estimated Ship Date: May 20, 2026 if ordered today
Estimated Ship Date: May 20, 2026 if ordered today
Piston, 23 Degree. Forged, Flat Top, 2-Valve Reliefs, 4.040 in. Bore, 3.500 in. Stroke, 6.000 in. Rod, 1.250 in. Compression, Chevy, Right, Each
Part Number: JEP-181918R
Not Yet Reviewed
Estimated Ship Date: May 5, 2026 if ordered today
Estimated Ship Date: May 5, 2026 if ordered today
Pistons, Cast, Flat, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring, Mopar, Small Block, Set of 8
Part Number: UEM-1273-040
Not Yet Reviewed
Estimated Ship Date: May 21, 2026 if ordered today
Estimated Ship Date: May 21, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.040 in. Bore, Chevy, Each
Part Number: MAH-2243497040
Not Yet Reviewed
Estimated Ship Date: May 18, 2026 if ordered today
Estimated Ship Date: May 18, 2026 if ordered today
Pistons, Hypereutectic, Dish, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, Set of 6
Part Number: UEM-3490HC-040
Not Yet Reviewed
Estimated Ship Date: May 22, 2026 if ordered today
Estimated Ship Date: May 22, 2026 if ordered today
Pistons, Hypereutectic, Flat, 4.040 in. Bore, Chrysler, Dodge, Plymouth, Set of 8
Part Number: SLP-H405CP40
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Piston, Hypereutectic, Step Dish, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, Each
Part Number: UEM-SKB366-040
Not Yet Reviewed
Estimated Ship Date: May 20, 2026 if ordered today
Estimated Ship Date: May 20, 2026 if ordered today
SB Chevy FT 4.040B/1.000CD
Part Number: DPP-11158
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Piston, Hypereutectic, Flat, 4.040 in. Bore, Ford, SBF, Each
Part Number: SUM-17302C-40-1
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Piston, Hypereutectic, Dished, 4.040 in. Bore, Chevy, Single replacement, Each
Part Number: SUM-17383C-40-1
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Piston and Ring Kit, Hypereutectic, Flat, 4.040 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-KB106KTD-040
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pistons, Hypereutectic, Flat, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8
Part Number: UEM-KB281-040
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pistons, Hypereutectic, Flat, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-KB228-040
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Piston, Flat Top, 4.040 in. Bore, 3.500 in. Stroke, 6.125 in. Rod Length, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy Small Block, Set of 8.
Part Number: PIS-1001020
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Piston, Flat Top, 4.040 in. Bore, 3.480 in. Stroke, 5.700 in. Rod Length, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy Small Block, Set of 8.
Part Number: PIS-1000104
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Piston, Flat Top, 4.040 in. Bore, 3.480 in. Stroke, 6.125 in. Rod Length, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy Small Block, Set of 8.
Part Number: PIS-1000116
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pistons, Hypereutectic, Dish, 4.040 in. Bore, Chevy, GMC, Set of 8
Part Number: SLP-H580CP40
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pistons, SB Chev, DM, 4.040"
Part Number: HRS-840412608R
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Pistons, Hypereutectic, Dish, 4.040 in. Bore, L6, Ford, Set of 6
Part Number: SLP-H554CP40
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster