Pistons & Piston Rings

Wrist Pin Retainer, Spiral, 0.927 in. Diameter, .073 in. Thick, Each

Part Number: JEP-927-073-AS

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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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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 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

Oil Ring Support Rails, 4.125 in-4.185 in. Bore, 3.mm, Each

Part Number: MLE-9290032

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Piston Pin Lock Rings, Round Wire, 0.912 in. Pin, Pair

Part Number: WIS-W5075

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WRIST PIN LOCK EACH

Part Number: DPP-015103

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Wrist Pin Locks, Spirolox, 1.094 in. Pin Diameter, 0.050 in. Thick, Carbon Steel, Each

Part Number: JEP-094-050-CS

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

Part Number: WIS-W4956

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Wrist Pin Retainers, Spiro Lox, .866 in. Diameter, .043 in. Thick, Pair

Part Number: WIS-CS22

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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

SUPPORT RAILS 4.600-4.639 WALL .158

Part Number: DPP-019010600

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

• Drop Ship
• Special Order

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

ROUND WIRE PIN LOCKS (PAIR)

Part Number: WIS-W5595

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

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: Dec 23, 2025 if ordered today

• Drop Ship
• Special Order

FLAT WIRE SPIRAL PIN LOCKS 13MM(PR)

Part Number: WIS-CS13

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Estimated Ship Date: Dec 29, 2025 if ordered today

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• Special Order

Piston Rings, Performance, Napier, Second Ring, 4.615 in. Bore, 1/16 in. Thickness, 0.170 in. Ring Width, Each

Part Number: MAH-3021237B

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Estimated Ship Date: Today

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

Part Number: WIS-W5080

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Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Special Order

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 29, 2025 if ordered today

• Drop Ship
• Special Order

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

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Estimated Ship Date: Today

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 Ring Support Rail, 4.250 in.-4.310 in. Bore, 3/16 in. Thickness, Each

Part Number: MLE-9290040

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Estimated Ship Date: Today

PISTON PIN RETAINER

Part Number: NAL-12569638

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Estimated Ship Date: Today