Vacuum leaks? Cracked plenum? Broken mounting tabs? Or refreshing your 2.1L intake system the right way?
This is a USED Genuine Volkswagen Intake Air Distributor (upper intake plenum) for 1986–1991 VW Vanagon 2.1L Waterboxer (Digifant) models.
This cast aluminum unit distributes intake air evenly to the intake runners and supports multiple vacuum connections essential to proper engine operation.
Factory cast. Proper fit. No aftermarket guesswork. 👍
🔹 Part: Intake Air Distributor (Upper Plenum)
🔹 Condition: USED – Genuine OEM Volkswagen
🔹 VW Part Number: 025 133 055 D
🔹 Vehicle: VW Vanagon
🔹 Years: 1986–1991
🔹 Engine: 2.1L Waterboxer (Digifant Fuel Injection)
🔹 Material: Cast Aluminum
⚠️ 2.1L ONLY
❌ Not compatible with 1.9L (1983–1985)
⚠️ Verify part number before purchasing
The intake air distributor:
✅ Distributes intake air to both cylinder banks
✅ Provides mounting points for throttle body and sensors
✅ Houses vacuum ports for fuel pressure regulator, brake booster, etc.
✅ Supports proper air/fuel mixture distribution
Common failure issues include:
⚠️ Vacuum leaks at ports
⚠️ Cracked fittings
⚠️ Damaged threads
⚠️ Warped or corroded mating surfaces
If your 2.1 WBX is idling poorly or running lean, intake leaks are often the cause.
📦 (1) USED OEM Intake Air Distributor – 025133055D
📸 Exactly what’s shown in the photos
🛠️ Sensors, fittings, or hardware included only if pictured
No additional components unless visible in listing photos.
🧽 USED original VW component
🕰️ Normal wear from engine heat cycles
🔍 Threads and vacuum ports intact unless otherwise shown
📸 Review ALL photos carefully for exact condition
🌲 North Westy started as a group of passionate Vanagon enthusiasts in the Pacific Northwest and has grown into one of the most trusted names in VW Vanagon restoration, upgrades, and adventure-ready builds. We’re a full-service Vanagon shop handling everything from Digifant diagnostics and vacuum leak repair to full engine conversions and restorations.
In addition to our in-house services, we stock a wide range of new and used OEM Vanagon engine components, including hard-to-find 2.1L intake system parts like this distributor.
🌲 Not sure if this matches your setup? Message us.
We’re happy to confirm before you buy.
📦 Ships carefully packed
🔁 Returns accepted per seller policy (item must be uninstalled)