Quick Answer: A-5440 with A-5439 is a Sakura primary and secondary air filter set for International truck applications including ProStar, TranStar and WorkStar series.
| Jinguan / reference model | A-5440 + A-5439 / International 3551815-C1 |
| Product type | Engine Air Filter Set |
| Matching method | Confirm by OE number, cross reference number, filter photo, dimensions or sample before bulk order. |
| Primary A-5440 | H1 408 mm x H2 399 mm x OD 305.5/305 mm x ID 193.5 mm |
| Secondary A-5439 | H1 392 mm x H2 386 mm x OD 253/137 mm x ID 174 mm |
| Set | Sakura A-5441-S primary + secondary set |
Cross references are for identification only. Final fitment should be confirmed by OE number, dimensions, photo or sample.
| Sakura | A-5440, A-5439, A-5441-S |
| International Harvester | 3551815-C1 |
| Application | International ProStar, WorkStar, TranStar |
| Buyer confirmation | Confirm both primary and secondary elements before order |
Send OE number, filter photo, dimensions, equipment model and quantity. Jinguan will confirm replacement fitment and prepare export quotation.