The Vanair VP-543 is a compact powered roof vent for small RV spaces, built around a 6-1/4-inch round roof opening rather than a standard square vent cutout. The manufacturer's exploded view separates the smoke dome, centrifugal blower wheel, motor, switch and ceiling trim.
Ventline VP-543 original exploded parts drawing
Use the numbered manufacturer illustration to locate a component, then compare its original number in the table below. This is the Ventline by Dexter parts drawing; the PDF opens at its model's diagram page.
Open the manufacturer PDF to enlarge the numbered illustration.
Parts by drawing reference
Find the original Ventline part number beside its figure reference. Where a current NewRVParts listing matches the exact number, use the link to review its product details.
| Callout | Ventline number | Component | Product |
|---|---|---|---|
| Complete unit | VP-543 | 12V Vanair roof vent with smoke dome | View matching product |
| 1 | BVA0502-03 | Smoke plastic Vanair dome assembly | View matching product |
| 2 | C0119-00 | #8 × 1/4-inch sheet-metal screws | |
| 3 | BVD0217-00 | Centrifugal blower wheel for later motor | |
| 4 | M2.6 | Machine screws for later motor | |
| 5 | BVD0218-00 | 1-1/2-inch 12V DC blower motor | View matching product |
| 6 | BVC0515-05 | Polar-white screen frame | |
| 7 | BV0199-03 | Red push-button fan switch | |
| 8 | VA0212-00 | #6 × 7/16-inch screws (four) | |
| 9 | BVA0207-05 | Polar-white vent handle including two screws | |
| 10 | BVA0228-01-46 | Optional ceiling garnish extension ring | |
| 11 | BVA0205-07 | Polar-white ceiling garnish | |
| Earlier motor | VA0164-00 / VC0468-00 | Older 2-inch motors; see current replacement note | |
| Earlier blower | VA0211-00 / VC0467-00 | Older matching blower wheels; see shaft chart |
Photographs of matching replacement parts
These photographs come from the NewRVParts product listings linked below. Use the diagram and installed part markings to check the replacement before ordering.
Identify the correct version
Older Vanair motors used 2-inch housings with smooth or knurled shafts. The chart identifies the later BVD0218-00 1-1/2-inch replacement motor with BVD0217-00 blower wheel. A replacement motor must be paired with the correct wheel and shaft hardware rather than reusing an incompatible old fan blade.
The VP-543 uses a 12-volt motor rated around 1.5 amps and a 100 CFM centrifugal blower. Its smoke dome BVA0502-03 is not the square Ventadome BVD0449 lid. Match the 6-1/4-inch round opening and existing screen, handle and switch before ordering.
Read Dexter's roof-vent installation and wiring instructions (PDF)