T1,T2,G1 Oil Cooler Seal - Type 1 Twinport, Type 4, 1.6 (EC,EG), 1.8 (DX)

This oil cooler seal is designed to ensure a proper, leak-free seal between the oil cooler and engine case on a wide range of Volkswagen air-cooled engines. It is suitable for late single-port and all twin-port Type 1 engines (1300cc–1600cc), as well as all 1700cc, 1800cc, and 2000cc Type 4 “pancake” engines fitted to Baywindow Buses and air-cooled Type 25 (T3) Buses.

The oil cooler seal plays a critical role in maintaining correct oil pressure and cooling efficiency. A hardened, flattened, or incorrect seal can lead to oil leaks, pressure loss, and reduced cooling effectiveness—issues that can quickly result in engine damage if left unresolved. Replacing these seals whenever the oil cooler is removed is essential for reliable engine operation.

This seal is also compatible with Mk1 Golf GTI engines (1.6 EC/EG and 1.8 DX), certain late single-port engines, and a wide range of other VW air-cooled and early water-cooled applications, making it a highly versatile service item.

Quantity Requirements

• Late single-port Type 1 engines: 2 seals required

• Type 4 engines (1700–2000cc): 2 seals required

• Twin-port Type 1 engines: 4 seals required

Sold individually – please order the correct quantity for your engine.

Notes:

• For early single-port engines, use part number 111117151

• For twin-port oil cooler conversions, use kit 111198029

Engine & Vehicle Fitment

Type 1 Air-Cooled Engines:

• Late single-port & all twin-port 1300cc–1600cc engines

• Beetle, Beetle Cabrio, Karmann Ghia, Type 3

Type 4 Air-Cooled Engines:

• 1700cc, 1800cc, 2000cc

• Baywindow Bus (1972–1979)

• Type 25 / T3 air-cooled (1980–1983)

• Porsche 912E (1976)

• Porsche 914 (1970–1976)

Water-Cooled Applications:

• Golf Mk1 GTI 1.6 (EC, EG)

• Golf Mk1 GTI 1.8 (DX)

• Golf Mk1 / Cabriolet, Caddy Mk1, Scirocco (various years)

Key Features

• Ensures a tight, leak-free oil cooler seal

• Maintains correct oil pressure and cooling efficiency

• Compatible with late single-port, all twin-port & Type 4 engines

• Ideal for maintenance, rebuilds, and oil cooler servicing

• Sold individually for flexible ordering