CENTRI® Air Precleaners

Diesel Engine Guide — Turbocharged

  • Determine engine displacement in Cubic Inch Displacement (CID) or Liters, and if the engine is Turbocharged, Turbocharged Aftercooled or Normally Aspirated
  • Check that this is appropriate chart for your engine type. If you are unsure whether the engine is Turbocharged, Turbocharged Intercooled, or Normally Aspirated, please consult the manufacturer's specification sheet for the engine
  • Locate proper operating RPMs at the top of the columns. Then move down the column to the proper CID/Liters
  • Move across proper CID row to the column, labeled CENTRI® Model. The number in this column will be the CENTRI® Air Precleaner required for the engine
  • After selecting the proper CENTRI® unit, measure the O.D. of the air intake. If this size is larger or smaller than the CENTRI® unit, refer to the accessory pages for the adaptor required for installation. CENTRI® unit dimensions can be found on the main product page under specifications
  • Choose the precleaner size by engine air flow requirements, not intake diameter
  • If you do not find your engine here, please e-mail us at info@smartmaintenance.com or call 877-368-4766
2400 RPM 2200 RPM 2100 RPM 2000 RPM 1800 RPM
LTR CID CFM CENTRI®
MODEL
CFM CENTRI®
MODEL
CFM CENTRI®
MODEL
CFM CENTRI®
MODEL
CFM CENTRI®
MODEL
1.5 92 102 EX-25 93 EX-20 89 EX-20 85 EX-20 76 EX-20
2.0 122 136 EX-25 124 EX-25 119 EX-25 113 EX-25 102 EX-25
2.5 153 170 EX-25 155 EX-25 148 EX-25 141 EX-25 127 EX-25
3.0 183 203 EX-40 186 EX-25 178 EX-25 170 EX-25 153 EX-25
3.5 214 237 EX-40 218 EX-40 208 EX-40 198 EX-40 178 EX-25
4.0 244 271 EX-40 249 EX-40 237 EX-40 226 EX-40 203 EX-40
4.5 275 305 EX-40 280 EX-40 267 EX-40 254 EX-40 229 EX-40
5.0 305 339 EX-40 311 EX-40 297 EX-40 283 EX-40 254 EX-40
5.5 336 373 EX-40 342 EX-40 326 EX-40 311 EX-40 280 EX-40
6.0 366 407 EX-50 373 EX-40 356 EX-40 339 EX-40 305 EX-40
6.5 397 441 EX-50 404 EX-50 386 EX-40 367 EX-40 331 EX-40
7.0 427 475 EX-50 435 EX-50 415 EX-50 396 EX-50 356 EX-40
7.5 458 509 EX-50 466 EX-50 445 EX-50 424 EX-50 381 EX-40
8.0 488 542 EX-50 497 EX-50 475 EX-50 452 EX-50 407 EX-50
8.5 519 576 EX-50 528 EX-50 504 EX-50 480 EX-50 432 EX-50
9.0 549 610 EX-50 559 EX-50 534 EX-50 509 EX-50 458 EX-50
9.5 580 644 EX-50 590 EX-50 564 EX-50 537 EX-50 483 EX-50
10.0 610 678 EX-50 622 EX-50 593 EX-50 565 EX-50 509 EX-50
10.5 641 712 EX-60 653 EX-50 623 EX-50 593 EX-50 534 EX-50
11.0 671 746 EX-60 684 EX-50 653 EX-50 622 EX-50 559 EX-50
11.5 702 780 EX-60 715 EX-60 682 EX-50 650 EX-50 585 EX-60
12.0 732 814 EX-60 746 EX-60 712 EX-60 678 EX-50 610 EX-60