Side Pin Tooth (SHORT) Part Number 6I6601 Family J600 Standard Pin Part No. 6I6608 Standard Retainer Part No. 6I6609 Heavy Duty Pin Part No. 1139608 Heavy Duty Retainer Part No. Pocket Size 55=5.5in Machine: CATERPILLAR 988G, 992, 235, 245, 345, 350, 375 IF YOU CAN'T FIND WHAT YOU ARE LOOKING FOR, PLEASE CONTACT US. PRICE AND PART NUMBERS ARE USED FOR REFERENCE PURPOSES ONLY.