✅ Compatibility

• Make: Isuzu / Doosan Daewoo
• Engine Family: Isuzu B-series industrial diesel engines (4BD1 / 4BG1 / 6BB1 / 6BD1 / 6BG1)
• OEM / Cross Reference Part Numbers:
  • Isuzu: 5811001690 / 5-81100169-0, 5811001691 / 5-81100169-1, 5811001692 / 5-81100169-2, 58110016910, 5811001081 / 5-81100108-1, 8973580621 / 8-97358062-1
  • Hitachi / Hino: 65.26201.7050 / 65262017050
  • Denso: 0280005490, 0280006560, 0280006561
  • Denso / Lester: 1280007750, 1280007751, 1280007752, 1280007753
  • Lester / Remy: LRS01194, LRS1194
  • Bosch: 031115021
• Fits Isuzu B-Series Industrial Diesel Engines:
  • Isuzu 4BD1 — 3.9L 4-cylinder diesel — forklift / construction / industrial
  • Isuzu 4BG1 — 4.3L 4-cylinder turbocharged diesel — forklift / excavator / industrial
  • Isuzu 6BB1 — 6-cylinder diesel — industrial / construction
  • Isuzu 6BD1 — 5.8L 6-cylinder diesel — heavy-duty forklift / construction
  • Isuzu 6BG1 — 6.5L 6-cylinder turbocharged diesel — heavy-duty forklift / excavator / crane
• Fits Doosan Daewoo Forklift:
  • Doosan Daewoo D30S-2 — 3-tonne diesel counterbalance forklift (Isuzu 4BD1 engine)
• ⚠️ Fitment Note: Verify your Isuzu engine designation (4BD1 / 4BG1 / 6BB1 / 6BD1 / 6BG1) or Doosan Daewoo forklift model and serial number, and existing starter part number before ordering. Contact us for fitment confirmation.

🔧 Product Highlights

• Direct OEM Replacement — Isuzu 5-81100169-0 12V 11T Starter for Isuzu B-Series Industrial Diesel Engines: Drop-in fit for all compatible Isuzu 4BD1, 4BG1, 6BB1, 6BD1, and 6BG1 industrial diesel engine applications — matching original Isuzu / Hitachi starter specifications including 12V voltage and 11-tooth drive gear for reliable starting across Isuzu’s B-series industrial engine family
• 21 OEM Cross-Reference Numbers — Isuzu / Hitachi / Denso / Lester / Bosch: With 21 cross-reference numbers across Isuzu, Hitachi, Denso, Lester / Remy, and Bosch — this is one of the most extensively cross-referenced Isuzu B-series industrial starter motors in the global aftermarket, covering both hyphenated (5-81100169-0) and continuous (5811001690) formats across all major parts catalogs
• Isuzu B-Series — Isuzu’s Most Widely Deployed Industrial Diesel Engine Family in Global Forklifts, Excavators, and Construction Equipment: The Isuzu 4BD1, 4BG1, 6BD1, and 6BG1 B-series engines are among the most widely used industrial diesel engines in the global forklift, excavator, and construction equipment market — powering equipment from brands including Toyota, Doosan, Daewoo, Komatsu, Hitachi, and many others. Isuzu’s B-series engines are renowned for their exceptional fuel efficiency, long service life, and global parts availability
• Isuzu 4BD1 / 4BG1 — The Most Common Isuzu Engine in Global Forklift Fleets: The Isuzu 4BD1 (3.9L) and 4BG1 (4.3L turbocharged) are the most widely installed Isuzu engines in global counterbalance forklift fleets — used in Toyota, Doosan, Daewoo, Nissan, and TCM 2.5–5-tonne diesel forklifts across warehouse, port, manufacturing, and logistics operations worldwide. The 4BD1 in particular is one of the most recognizable industrial diesel engines across Asia, North America, and Europe
• Doosan Daewoo D30S-2 — Doosan’s 3-Tonne Isuzu 4BD1-Powered Diesel Forklift for Heavy Warehouse and Distribution Operations: The Doosan Daewoo D30S-2 is Doosan’s 3-tonne capacity diesel counterbalance forklift — widely deployed in warehouse, container terminal, and heavy manufacturing operations across Asia and globally. Powered by the Isuzu 4BD1 diesel engine, the D30S-2 is a high-duty-cycle forklift with strong demand for quality aftermarket maintenance components
• Starter Motor Failure on Isuzu B-Series Engines — High-Impact Downtime for Forklift and Construction Equipment Fleets: A failed starter on an Isuzu 4BD1 or 4BG1-powered forklift or excavator causes immediate operational downtime — directly impacting warehouse throughput, construction site productivity, and fleet scheduling. For fleet operators maintaining multiple Isuzu-powered machines, rapid starter replacement is a critical maintenance priority

📦 What's Included

• 1× Starter Motor 12V 11T — New Aftermarket (Isuzu 5-81100169-0 / 5811001690)

🔑 Key Specs

• Isuzu Part Numbers: 5-81100169-0 / 5811001690 — 5-81100169-1 / 5811001691 — 5-81100169-2 / 5811001692 — 5-81100108-1 / 5811001081 — 8-97358062-1 / 8973580621 — 58110016910
• Cross-Reference: Hitachi 65.26201.7050 — Denso 0280005490 / 0280006560 / 0280006561 — Denso 1280007750–1280007753 — Lester LRS01194 / LRS1194 — Bosch 031115021
• Voltage: 12V
• Drive Gear Teeth: 11T (11-tooth)
• Compatible Engines: Isuzu 4BD1 / 4BG1 / 6BB1 / 6BD1 / 6BG1 (B-series industrial diesel)
• Compatible Equipment: Doosan Daewoo D30S-2 forklift / Isuzu B-series powered forklifts, excavators, and construction equipment
• Application: Industrial forklift / excavator / construction equipment / heavy industrial
• Condition: New Aftermarket
• SKU: 5-81100169-0

⚠️ Please verify your Isuzu engine designation (4BD1 / 4BG1 / 6BB1 / 6BD1 / 6BG1) or Doosan Daewoo forklift model and serial number, and existing starter part number before purchasing. Contact us if unsure — we are happy to confirm fitment for your Isuzu-powered equipment or Doosan Daewoo D30S-2 forklift.