Pistons & Piston Rings

Oil Ring Support Rail, 4.310-4.349 in. Bore, Spring Steel, Each

Part Number: JEP-4310-193

Not Yet Reviewed

Estimated Ship Date: Today

Oil Ring Support Rail, 4.600-4.635 in. Bore, 0.203 in. Radial Depth, Spring Steel, Each

Part Number: JEP-4600-203

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Piston Lock Rings, Wire Lock, Carbon Steel, .990 in. Pin Diameter, 0.072 in. Wire Diameter, Pair

Part Number: WIS-W5242

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Wrist Pin Retainer, Wire Locks, 0.591 in. Diameter, 0.039 in. Thick, Steel, Pair

Part Number: WIS-CW15

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Wrist Pin, 0.912 in. Diameter, 3.000 in. Length, Each

Part Number: UEM-912X300K

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Wrist Pin, Lightweight, .990 in. Diameter, 3.000 in. Length, 163 Grams, Each

Part Number: UEM-0990X300K

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Wrist Pin Retainers, Wire Lock Type, Steel, 0.049 in. Thick, 0.787 in. Diameter, Pair

Part Number: WIS-CW20

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Oil Rail Support, Dimpled, 4.155 in. up to 4.193 in. Bore, Each

Part Number: WIS-W4956

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Piston Rings, Oil Support Rail, 4.280 in-4.309 in. Bore, 9g weight, Single Piston, Each

Part Number: JEP-4280-193

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Piston Oil Ring Spacer, Support Rail, 3.935 in.-3.950 in. Bore, 2mm Thick, Each

Part Number: MLE-1979644

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Piston Pin Locks, Wire Lock, Steel, 0.787 in. Diameter Pin, 0.050 in. Thick, Motorcycle, ATV, Each

Part Number: CPD-787-050SWL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

ROUND WIRE PIN LOCKS (PAIR)

Part Number: WIS-W5595

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

LOCKS-.042 SPIRAL

Part Number: MAN-42271-1

Not Yet Reviewed

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FLAT WIRE SPIRAL PIN LOCKS 13MM(PR)

Part Number: WIS-CS13

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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• Special Order

Wrist Pin Retainer, Wire Lock Type, Chrome Silicon, 0.050 in. Thick, for 0.787 in. Wrist Pin Diameter, Each

Part Number: JEP-787-050-MW

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Oil Rail Support, Dimpled, 3.970 in. up to 4.029 in. Bore, Each

Part Number: WIS-W4953

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Wrist Pin, Lightweight, .927 in. Diameter, 2.500 in. Length, 102 Grams, Each

Part Number: UEM-0927X216K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Wrist Pin Retainer, SpiroLox, for .975 in. Pin Diameter, .042 in. Width, Each

Part Number: ROS-4004-E

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Wrist Pin Lock Ring, C-clip Type, Steel, 0.063 in. Thick, 1.100 in. O.D., 0.927 in. Pin Diameter, Each

Part Number: MLE-6436901

Not Yet Reviewed

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Piston Oil Rail Support, 4.530 in. Min Bore, 4.559 in. Max Bore, 0.030 in. Thick, Each

Part Number: JEP-4530-203

Not Yet Reviewed

Estimated Ship Date: Nov 25, 2025 if ordered today

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Wrist Pin Lock Ring, Wire Lock, Chrome Silicon Steel, .827 Pin Diameter, Each

Part Number: JEP-827-063-MW

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Oil Rail Support, Dimpled, 4.060 in. up to 4.080 in. Bore, Each

Part Number: WIS-W5080

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Oil Rail Support, Dimpled, 4.194 in. up to 4.220 in. Bore, Each

Part Number: WIS-GLS12

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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• Special Order

SUPPORT RAILS 4.600-4.639 WALL .158

Part Number: DPP-019010600

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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• Special Order

Piston Wrist Pin Retainers, Lock Rings, Wire Lock Type, Clip Has No Tang, Steel, 0.866 in. Pin Diameter, Each

Part Number: MLE-2042968

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Estimated Ship Date: Today