Ring Compressor, Aluminum, Black Anodized, 4.030 in. Bore, Each

Part Number: SME-904030

4.94 out of 5 stars ( 143 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

Assembly Lubricant, Piston & Piston Ring, 8 fl.oz. Bottle, Each

Part Number: TSR-AL8

5.0 out of 5 stars ( 16 )

Cannot be shipped Internationally if shipped by air

• Restricted

Dry-Film Lubricant, Quick Seat, Cylinder Wall, 2 grams, Each

Part Number: TSR-QS

4.67 out of 5 stars ( 18 )

Cannot be shipped Internationally if shipped by air

• Restricted

Piston Rings, Plasma-moly, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR9090-30

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

• Free Shipping

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

Part Number: SUM-134-CM553130

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

Piston Rings, Plasma-moly, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-R9903030

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

• Free Shipping

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: Monday 10/19/2026 if shipped by air

Piston Ring Compressor, Aluminum, Black Anodized, PTFE Coated, Tapered, 4.030 in./102.36mm Bore, Each

Part Number: WIS-RCS40300

4.67 out of 5 stars ( 12 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

Ring Compressor, Aluminum, Red Anodized, 4.030 in. Bore, Each

Part Number: PRO-67445

4.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

Piston Ring Compressor, Solid, Aluminum, Black Anodized, 4.030 in. Diameter, Each

Part Number: BTC-BTRRC4030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

Piston Rings, Plasma-moly, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-40564CP030

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

Piston Rings, Plasma-moly, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-3150034030

Not Yet Reviewed

Estimated Ship Date: Nov 4, 2026 if ordered today

• Special Order

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

Part Number: SUM-135-2M550830

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 8, 2026 if ordered today

• Free Shipping
• Special Order