ARP 900-3900 4.390-Inch Tapered Piston Ring Compressor

The ARP 900-3900 tapered piston ring compressor is designed for use with a 4.390-inch bore. Its tapered design supports piston ring compression during engine assembly, helping position the piston and rings for installation into the cylinder bore.

Manufactured from aluminum and finished with a black anodized surface, this ring compressor combines a durable construction with a professional appearance. The ARP 900-3900 is supplied as an individual compressor for applications requiring a 4.390-inch bore size.

With its tapered aluminum design, the ARP 900-3900 provides a purpose-built solution for piston installation work. Verify the bore size and application requirements before use.

Features:

• Bore Size: Designed for a 4.390-inch bore
• Design: Tapered piston ring compressor
• Material: Aluminum construction
• Finish: Black anodized finish
• Quantity: Sold individually