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Class A Scheduled Maintenance - Part 1 | Engines


Maintenance Banner Photo - Part 1

Proper Maintenance is important to the longevity of your motorhome. Secure the copy of the Chassis Lubrication Chart from your owner's Manual. Sit down with the Service Advisor after the work is done to ensure that all maintenance was performed.

The following are Spartan Maintenance Guidelines for some of the more common Systems found in many of today's Motorhomes.


Engine - Oil Change & Fuel Filter Service





Cummins Engine - ILS

Cummins ISL and '03 ISL 370-400 HP


Engine Oil

  • Service (Pre '03): 18,000 miles or yearly
  • Service ('03 & Up): 20,000 miles or yearly
  • Oil Filter: Fleetguard LF-9009
  • Oil Type: SAE 15W40
  • Oil Capacity (Pre '03): 24 Quarts (US)
  • Oil Capacity ('03 & Up): 25 Quarts (US)
  • Oil Capacity ('03 & Up): (Composite Pan Stamped Steel) 24 Quarts (US)

Fuel Filter Type: Fleetguard

  • Service: Filter should be changed at every oil change.
  • Filter (Pre '03): FS-1022
  • Primary Filter ('03 & Up): FS-1003
  • Secondary Filter ('03 & Up): FF-5488





Cummins Engine - ISC

Cummins ISC and ISC '03 300-350 HP


Engine Oil

  • Service: 15,000 miles or yearly
  • Oil Filter: Fleetguard LF-9009
  • Oil Type: SAE 15W40
  • Oil Capacity (Pre '03): 22 Quarts (US)
  • Oil Capacity ('03 & Up): 25 Quarts (US)
  • Oil Capacity ('03 & Up): (Composite Pan Stamped Steel) 25 Quarts (US)

Fuel Filter Type: Fleetguard

  • Service: Filter should be changed at every oil change.
  • Filter (Pre '03): FS-1022
  • Primary Filter ('03 & Up): FS-1003
  • Secondary Filter ('03 & Up): FF-5488





Cummins Engine - ISB

Cummins ISB 210-300HP


Engine Oil

  • Service: 15,000 miles or yearly
  • Oil Filter: Fleetguard LF-3970
  • Oil Type: SAE 15W40
  • Oil Capacity: 19 Quarts (US)

Fuel Filter Type: Fleetguard

  • Service: Filter should be changed at every oil change.
  • Service: Every 15,000 miles
  • Spin On Cartridge: FS-19519
  • Drop In Cartridge: FS-19579





Cummins Engine - ISM

Cummins ISM 400-500 HP


Engine Oil

  • Service: 15,000 miles or yearly
  • Oil Filter: Fleetguard LF-9000
  • Oil Type: SAE 15W40
  • Oil Capacity: 41.2 Quarts (US)

Fuel Filter Type: Fleetguard

  • Service: Filter should be changed at every oil change.
  • Primary Filter: FS-1003
  • Secondary Filter: FS-1242B, RAYCOR





Caterpillar - 3126E

Caterpillar 3126E 330HP


Engine Oil

  • Service: 11,000 miles or yearly
  • Oil Filter: 1R-0739
  • Oil Type: SAE 15W40
  • Oil Capacity: 20 Quarts (US)

Fuel Filter Type: Caterpillar

  • Service: Filter should be changed at every oil change.
  • Filter: CAT 1R-0751





Caterpillar - C7

Caterpillar C7 300-350 HP


Engine Oil

  • Service: 11,000 miles or yearly
  • Oil Filter: 1R-1807
  • Oil Type: SAE 15W40
  • Oil Capacity: 22 Quarts (US)

Fuel Filter Type: Caterpillar

  • Service: Every 11,000 miles or 6 months.
  • Filter: CAT 1R-0751





Caterpillar - C9

Caterpillar C9 400 HP


Engine Oil

  • Service: 20,000 miles or yearly
  • Oil Filter: 1R-1808
  • Oil Type: SAE 15W40
  • Oil Capacity: 34 Quarts (US)

Fuel Filter Type: Caterpillar

  • Service: Every 30,000 miles or 600 hours.
  • Filter: CAT 1R-0749





Caterpillar - C13

Caterpillar C13 470-525 HP


Engine Oil

  • Service: 20,000 miles or yearly
  • Oil Filter: 1R-1808
  • Oil Type: SAE 15W40
  • Oil Capacity: 36 Quarts (US)

Fuel Filter Type: Caterpillar

  • Service: Every 30,000 miles or 600 hours.
  • Filter: CAT 1R-0749







Caution: The maintenance recommendations on this page are meant as general guidelines only. Always consult with a professional RV mechanic, your owner's manual, and/or your authorized RV dealer BEFORE performing any maintenance procedures. See 'Legal Disclaimer' below.






Legal Disclaimer & Caution: Before using any advice, and/or performing any maintenance procedures recommended on this website you should consult with your RV dealer, and/or a professional Motorhome or RV mechanic. The recommendations and advice given on this website are intended as general guidelines ONLY, and may not pertain to your particular make and/or model of RV or Motorhome. Use these suggestions, repair tips, and/or maintenance advice AT YOUR OWN RISK. Under no circumstances will this website, or any of its officers or employees be liable for any consequential, incidental, special or exemplary damages even if appraised of the likelihood of such damages occurring. The owners of this website do not warrant the information against errors, omissions or deficiencies of any kind.



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