Piston ring set 3802230 is the standard-bore three-ring set for Cummins 4BT3.9, 4BTA3.9, 6BT5.9, 6BTA5.9, ISB5.9 and QSB5.9 engines at 102 mm, cross-referencing 3802050, 3802056, 3802421 and 3802746. The top compression ring is 3.0 mm and the second 2.35 mm, both hard chrome plated, with a 4.0 mm spring-loaded oil control ring given a nitrided anti-corrosion finish. Material is high-tough ductile iron with a stainless steel spring insert.
Specifications
| OEM Part Number |
3802230 (STD Standard Bore) |
| Cross Reference PN |
3802050, 3802056, 3802421, 3802746 |
| Compatible Engines |
Cummins 4BT3.9 / 4BTA3.9 / 6BT5.9 / 6BTA5.9 / ISB5.9 / QSB5.9 |
| Standard Bore Size |
102 mm |
| Piston Ring Configuration |
3-ring set • Top compression ring: 3.0 mm • Second compression ring: 2.35 mm • Spring loaded oil control ring: 4.0 mm |
| Material |
High-tough ductile iron + stainless steel spring insert |
| Surface Treatment |
Compression rings: Hard chrome plated Oil ring: Nitrided anti-corrosion finish |
| Packaging Option |
Neutral export cartons / Cummins branded color boxes, single-cylinder individual packing |
Key Features
- Three-ring set for 102 mm standard bore
- Top compression ring 3.0 mm, second 2.35 mm, oil ring 4.0 mm
- Hard chrome plated compression rings
- Nitrided anti-corrosion finish on the oil control ring
- High-tough ductile iron with stainless steel spring insert
- Single-cylinder individual packing
- Cross-references 3802050, 3802056, 3802421 and 3802746
Typical Applications
- Light and medium trucks
- Excavators and loaders
- Generator sets
- Industrial power units
Ordering from Sino Bus Parts
- Wholesale pricing; bulk orders welcome
- Global shipping
- Fitment confirmed against your engine serial or CPL before dispatch
- Contact us on WhatsApp for a quotation
