Cummins 4059448 Piston Pin Bushing PAI 151539 (Pack6)CROSS REFERENCE: 4059448 APPLICATION: Cummins ISX Multiple Use Application. DETAILS: Drilled Machine Cut Connecting Rods BRAND: PAI 151539 Cummins 4059448 Piston Pin Bushing PAI 151539 intended for aftermarket truck and heavy truck. Ensures durable fit and stable operation in heavy duty conditions. All components are proudly manufactured in the U. S. A. by PAI Industries Inc., an ISO9001 certified company with over 50 years of experience in the heavy