OVERVIEW
Genuine VW/Audi 803-260-749-B is an individual O-ring for the original assigned air-conditioning connection. It renews the specified joint seal during hose or A/C component service on the confirmed vintage vehicle configurations below.
Technical details and what is included
- Factory part number: 803-260-749-B / 803260749B.
- Component: air-conditioning connection O-ring.
- Quantity supplied: one individual sealing ring.
- Exact B suffix must match the original fitting's seal assignment.
- The archive photograph shows the individual ring and central opening.
- The confirmed Coupe GT catalog includes an NW13 hose application; that is a line designation rather than a measurement of this ring.
Air-conditioning diagrams can list several similar ring numbers for different connection sizes. Unsuffixed 803260749, 803260749A and other neighboring sealing rings are separate parts. Select this B-suffix ring by the original fitting and catalog assignment rather than its appearance.
Common reasons to replace
- The original ring is damaged when an assigned A/C connection is opened.
- A cut, pinched or deformed seal cannot seat correctly.
- Inspection identifies deterioration at the joint.
- Leak testing identifies the assigned sealing connection as the source of a leak.
- The factory procedure requires a fresh seal during hose or component replacement.
Inspect the hose fitting, sealing groove and mating surface before replacing the ring. A damaged hose, corroded fitting or another leaking component requires separate repair. Replacing this ring alone does not diagnose a compressor fault or establish that the A/C system is leak-free.
Vehicle fitment
These profiles require the original air-conditioning connection that specifies 803260749B. Verify the installed fittings carefully on older vehicles, especially where hoses or system components have been replaced or converted.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Volkswagen Scirocco | 1984–1985 | 1.8L gasoline inline-four | Mk2 coupe; front-wheel drive; original air conditioning; Original factory drivetrain; A/C connection determines fitment | Original A/C sealing joint assigned 803260749B. For the identified 1985 compressor-to-evaporator hose point, VIN from 53-E-022216; other assigned B-ring points must be matched individually. |
| Volkswagen Vanagon | 1985 | 1.9L water-cooled gasoline flat-four | T3 van / camper; two-wheel drive; original air conditioning; Original factory drivetrain; A/C connection determines fitment | Original air-conditioning connection assigned 803260749B. Match installed hose, fitting and ring assignment; converted or replacement systems require exact component verification. |
| Audi Coupe GT | 1985 | 2.2L gasoline inline-five | B2 coupe; front-wheel drive; original air conditioning; Original factory drivetrain; A/C connection determines fitment | Original A/C hose joint assigned 803260749B; includes the specified NW13 connection. NW13 identifies the hose application, not a ring-diameter measurement. Match original fitting. |
| Volkswagen Fox | 1993 | 1.8L gasoline inline-four | Sedan; front-wheel drive; original air conditioning; Original factory drivetrain; A/C connection determines fitment | Original A/C evaporator/hose assembly joint assigned 803260749B. Confirm installed fitting and seal assignment; body and engine availability varies by year. |
Installation and service guidance
Follow the factory A/C service procedure for the installed system. Have the circuit prepared using the appropriate recovery and service equipment before opening a refrigerant connection.
Remove the old ring without damaging its groove. Inspect and clean the mating surfaces using the approved method, and use only the assembly lubricant specified for the installed system. Seat the replacement without twisting, stretching or pinching it.
Follow the prescribed connection tightening procedure, then complete the required evacuation and leak checks before the specified system charge and operating checks. Confirm seal and lubricant compatibility when working on a converted system.
This listing supplies one sealing ring. Refrigerant, compressor oil, hoses, fittings, other seals and A/C components are separate.