✅ Compatibility

• Make: Blue Bird / Caterpillar / Chevrolet / Ford / Freightliner / Kenworth / Ottawa / Sterling Truck / Thomas Bus / Western Star
• Compatible Engines: Caterpillar 3116 6.6L L6 (403CID) / Caterpillar 3126 7.2L L6 (441CID) / Caterpillar 8.3L L6 (504CID)
• Starter Family: Denso R OSGR — 12V / CW / 4.8kW heavy-duty commercial
• OEM / Cross Reference Part Numbers:
  • Denso: 228000-5850, 228000-5851, 428000-1610, TG228000-5851, TG428000-1610
  • Caterpillar: 0R9226
  • International Harvester: 2585347C91
  • Thomas Bus: 61230359, 61231320
  • Lester: 18989, 18994
• Fits Blue Bird School Buses:
  • Blue Bird All American FE / RE — Cat 3116 6.6L (1996–1999) / Cat 3126 7.2L (1999–2003)
  • Blue Bird TC2000 — Cat 3116 6.6L (1996–2000) / Cat 3126 7.2L (1997–2000)
  • Blue Bird Commercial Bus — Cat 3116 6.6L (1996–1997) / Cat 3126 7.2L (2003)
• Fits Ford Medium / Heavy-Duty Trucks:
  • Ford F-650 / F-750 — Cat 3126 7.2L (2000–2003)
  • Ford F-800 — Cat 8.3L (1992–1998)
• Fits Freightliner Trucks:
  • Freightliner FL50 / FL60 / FL70 / FL80 — Cat 3126 7.2L (1996–2003)
  • Freightliner M2 106 — Cat 3126 7.2L (2002–2007)
  • Freightliner Condor — Cat 3126 7.2L (2001–2003)
• Fits Kenworth Trucks:
  • Kenworth T300 — Cat 3126 7.2L (1996–1999) / Cummins 5.9L (2004–2007)
• Fits Ottawa Terminal Tractors:
  • Ottawa YT30 / YT50 / YT60T — Cat 3116 6.6L (1996–1999) / Cat 3126 7.2L (2000–2002)
• Fits Sterling Truck:
  • Sterling Acterra 5500 / 6500 / 7500 / 8500 — Cat 3126 7.2L (2001–2003)
  • Sterling L7500 / L8500 — Cat 3126 7.2L (1999–2004)
• Fits Thomas Bus School Buses:
  • Thomas Saf-T-Liner / Transit Liner — Cat 3126 7.2L (2000–2006)
• Fits Western Star Trucks:
  • Western Star 3700 / 4800 / 4900 / 4900SA / 5800 — Cat 3126 7.2L (2000–2002)
• Fits Chevrolet Medium-Duty Trucks:
  • Chevrolet C60 / C70 Kodiak — Cat 3116 6.6L (1996)
• Note: Verify your vehicle year, engine, and existing starter part number before ordering. Contact us with your VIN or unit serial for fitment confirmation.

🔧 Product Highlights

• Direct OEM Replacement: Drop-in fit for Caterpillar 3116 / 3126 commercial vehicle applications — matches original Denso R OSGR 12V / 10-tooth CW, 4.8kW, 2-bolt 10mm unthreaded mount specifications
• Denso OEM Starter — Original Equipment Supplier for Caterpillar 3116 / 3126 Commercial Vehicle Applications: Denso is the original equipment supplier for the Caterpillar 3116 / 3126 commercial vehicle starter motor — the 228000-5850 / 0R9226 is the Denso / Caterpillar OEM reference covering 10 major commercial vehicle brands across school buses, medium-duty trucks, heavy-duty trucks, and terminal tractors
• Caterpillar 3116 / 3126 — Caterpillar’s Most Widely Used Medium-Duty Commercial Vehicle Diesel Engine: The Caterpillar 3116 and 3126 are among the most widely used and trusted medium-duty diesel engines in the commercial vehicle industry — powering school buses, medium-duty trucks, terminal tractors, and specialty vehicles across Blue Bird, Freightliner, Kenworth, Sterling, Western Star, Thomas Bus, and many other major brands
• 4.8kW — Today’s Highest-Output Starter: At 4.8kW, this is the highest-output starter in today’s lineup — delivering the maximum cranking power required by the Caterpillar 3116 / 3126 in demanding commercial vehicle and fleet applications
• 10-Brand Commercial Fleet Coverage — School Buses / Medium-Duty Trucks / Heavy-Duty Trucks / Terminal Tractors: This single starter covers 10 major commercial vehicle brands across 40+ models — making it an essential part for commercial fleet operators, school bus fleets, and commercial vehicle service technicians
• Blue Bird All American — America’s Most Iconic School Bus: The Blue Bird All American FE and RE are among the most iconic and widely used school buses in North America — trusted by school districts across the US for their Blue Bird reliability and Caterpillar diesel durability. Starter reliability is mission-critical for school bus fleets to maintain student transportation schedules
• Restores Reliable Engine Cranking: Corrects no-crank, slow cranking, and starter engagement failure on Caterpillar 3116 / 3126 commercial vehicle applications across all 10 compatible brands

📦 What's Included

• 1× Starter Motor 12V / 10T OSGR CW 4.8kW (228000-5850 / 0R9226) — New Aftermarket

🔑 Key Specs

• Denso Part Numbers: 228000-5850, 228000-5851, 428000-1610, TG228000-5851, TG428000-1610
• Caterpillar Part Number: 0R9226
• International Harvester Part Number: 2585347C91
• Thomas Bus Part Numbers: 61230359, 61231320
• Voltage: 12V
• Power: 4.8kW / 5.36HP — highest-output starter in today’s lineup
• Pinion Teeth: 10T
• Rotation: Clockwise (CW)
• Type: OSGR (Over-running Sprag Gear Reduction) — Denso R family
• Mounting: 2-bolt 10mm unthreaded
• Weight: 23.51 lbs / 10.69 kg
• Compatible Engines: Caterpillar 3116 6.6L L6 (403CID) / Caterpillar 3126 7.2L L6 (441CID) / Caterpillar 8.3L L6 (504CID)
• Compatible Vehicles: Blue Bird / Ford / Freightliner / Kenworth / Ottawa / Sterling / Thomas Bus / Western Star / Chevrolet Kodiak (1992–2007)
• Condition: New Aftermarket
• SKU: 228000-5850

⚠️ Please verify your vehicle year, engine, and existing starter part number before purchasing. Contact us with your VIN or unit serial number if unsure.