Your machine or engine must have a functional exhaust scavenger connection already incorporated or retrofitted to the muffler/silencer. If the exhaust system on your machine does not have a scavenger port, we recommend the Series 9000 Single-Stage Precleaner.
This assembly is designed to be mounted on the hood. The connection to the filter housing is normally made with a 7-inch diameter hump hose or suitable soft connection. Additional parts or adaptation (sold separately) may be required due to variations in filter housing orientation or inlet size.

| 67011 | OPTIMAX - Service Part - 7-inch ID to 11-inch OD Adapter |
| 67090 | 7-inch to 9-inch Metal Expansion Adapter |
| 68011 | 8-inch to 11-inch Metal Expansion Adapter |
| 68013 | 8-inch to 13-inch Metal Expansion Adapter |
| 78016 | 8-inch to 16-inch Metal Expansion Adapter |
| 7H5 | Rubber Hump Hose 7 inch to 5 inch |
| 7H6 | Rubber Hump Hose 7 inch to 6 inch |
| 7H7 | Rubber Hump Hose 7 inch to 7 inch |
| 8H7 | Rubber Hump Hose 8 inch to 7 inch |
| 9003SC | 8-inch Heavy Debris Screen |
| 9003SCKIT | 8-inch Heavy Debris Screen Kit |
| 9003SCKIT2 | 8-inch Heavy Debris Screen Kit - for 7-inch air inlet |
| 9003SCR2 | 8-inch Heavy Debris Screen - Short |
| 9004 | 8-inch Sy-Klone Series 9000 Precleaner for 1150 to 1400 CFM (32.56 to 39.64 m3 m) |
| FH20-001 | 2-inch Rubber Flex Hose - by the foot, 2-foot minimum |
| HEATSHD-001 | Heat Shield for 2-inch Scavenger Hose |
| OA11004 | OPTIMAX - 9-inch Metal Installation Bracket for STD7OPTIB/BS2/BS3 cans |
| OA09007 | Check Valve - 2 inch |
| SYK20015 | 8-inch to 13-inch Flanged Metal Expansion Adapter Kit |