Premium Cum mins QSB8.3 head gasket (OE: 4981330, 5529514) engineered to meet OEM specifications, providing perfect fit and reliable sealing performance for Case Komatsu PC270-7/PC300-7 Excavator equipped with Cum mins QSB8.3 engines.
| Brand | Cum mins |
| Engine Model | QSB8.3 |
| OE Numbers | 4981330 (supersedes 5529514, 3928109) |
| Gasket Type | Cylinder Head Gasket |
| Material | MLX Multi-Layer Stainless Steel with Viton Coating (heat-resistant to 250℃/482℉) |
| Compressed Thickness | 0.060"-0.068" |
| Bore Size | 4.41" (112mm) |
| Layer Quantity | 5 Layers |
| Application | Case Komatsu PC270-7/PC300-7 Excavator |
| Quality Standard | ISO 9001 Certified, OEM Equivalent |
| Warranty | 6 Months |
High-performance sealing solution designed for Case Komatsu PC270-7/PC300-7 Excavator. Crafted with MLX multi-layer stainless steel and Viton coating, it withstands high temperatures, high pressure, and harsh working conditions, delivering superior sealing performance and durability that meets or exceeds OEM standards.