When maintaining older Isuzu diesel engines, choosing the right glow plug can significantly impact cold starting and long-term engine health. Many users face slow starts or premature failures with poorly matched aftermarket parts. Boxonly's 3-Pack 10V Diesel Glow Plug Set is engineered to provide efficient, consistent preheating for Isuzu 3LB1, 3LD1, 4LB1, and 4LE1 engines. Whether you operate Hitachi EX-series mini excavators or Daewoo machines, this glow plug ensures fast installation and stable cold starts. Designed for technicians, mechanics, and owners of diesel-powered construction equipment, this glow plug set addresses durability and fitment concerns found in generic brands. 📌 Product Details: Voltage: 10V Condition: New Fitment: Direct OE replacement Package: 3-Pack Application: Diesel engines for compact excavators 📌 Compatibility (by Year): Isuzu 3LB1 (1997–2003) Isuzu 3LD1 (1998–2005) Isuzu 4LB1 (1999–2006) Isuzu 4LE1 (2000–2007) 📌 Compatible Equipment: Hitachi Mini Excavators: EX29, EX30, EX32, EX35, EX36 Daewoo Construction Equipment with Isuzu diesel engines 📌 OE Numbers Supported: 8-97106549-4 8-97106549-1