Pistons, Rings, Wrist Pins, Bushings & More

Wrist Pin Lock Ring, Spirolox, 0.927 in. Diameter, .071 in. Thick, Each

Part Number: UEM-PRJ100-3

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Wrist Pin Retainers, Spirolox, .990 in. Diameter, Each

Part Number: UEM-PRG110-3

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Piston Rings, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in., Ductile, Plasma-moly, File Fit, 8-Cylinder, Set

Part Number: UEM-4000BD8-035

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

Wrist Pin Retainers, Spirolox, .981 in. Diameter, 0.072 in. Thick, Each

Part Number: UEM-PRH107-3

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Piston Rings, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000AM8-030

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Today

Lock Ring, Piston Wrist Pin Retainer, C-clip Type, Carbon Steel, 1.040 in. O.D., KB Claimer Series, Each

Part Number: UEM-93

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Wrist Pin, Lightweight, .927 in. Diameter, 2.500 in. Length, Each

Part Number: UEM-927X216K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Piston Oil Ring Spacers, United Engine and Machine Oil Ring Support Rails, 4.040 in. Bore, 3.615 in. Ring I.D., Each

Part Number: UEM-R08

Not Yet Reviewed

Estimated Ship Date: Today

Piston Rings, 4.155 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4125AM8-030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

PISTON RING SET

Part Number: UEM-22003-25MM

Not Yet Reviewed

Estimated Ship Date: Today

Piston Rings, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in., Ductile, Plasma-moly, File Fit, 8-Cylinder, Set

Part Number: UEM-4000BD8-045

Not Yet Reviewed

Estimated Ship Date: Today

Wrist Pin Lock Ring, Spirolox, .912 in. Diameter, .020 in. Thick, Each

Part Number: UEM-PRL99-3

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Piston Rings, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000AM8-060

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Piston Rings, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000BM8-030

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Piston Rings, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000AM8-040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Wrist Pin, Lightweight, .927 in. Diameter, 2.750 in. Length, 107 Grams, Each

Part Number: UEM-R61

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Piston Rings, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000BM8-040

Not Yet Reviewed

Estimated Ship Date: Today

Pistons, Speed of Air, Dimpled, 4032 Forged, 3.780 in. Bore, 3.622 in. Stroke, 6.098 in. Rod, +3.00cc Flat Top, Piston Rings, Chevy, 4.8L, 5.3L, Kit

Part Number: UEM-XA545-STDK2

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Wrist Pin, Lightweight, .927 in. Diameter, 3.000 in. Length, 145 Grams, Each

Part Number: UEM-0927X300K

Not Yet Reviewed

Estimated Ship Date: Today

Piston Rings, 4.310 in. Bore, 1/16 in., 1/16 in., 3/16 in., Ductile, Plasma-moly, File Fit, 8-Cylinder, Set

Part Number: UEM-4250BD8-065

Not Yet Reviewed

Estimated Ship Date: Today

Wrist Pin, Tool Steel, .984 in. Diameter, 2.750 in. Length, 107 Grams, Each

Part Number: UEM-R-73

Not Yet Reviewed

Estimated Ship Date: Today

Piston Rings, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in., Iron, Moly, 8-Cylinder, Set

Part Number: UEM-4000AM8-020

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Wrist Pin Retainers, Spirolox, 1.094 in. Diameter, .020 in. Thick, Each

Part Number: UEM-PRF116-3

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Pistons, Hyperformance Pistons, Cerakote, 4.035 in. Bore, 4.724 in. Stroke, 7.568 in. Rod, 44.90cc Dish, Piston Rings, Dodge, Cummins 5.9L, Kit

Part Number: UEM-XA7197-05K1

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

SRW-012 Lock Ring

Part Number: UEM-SRW-012

Not Yet Reviewed

Estimated Ship Date: Today