This 50mm cardboard corrugated warm-air hose is primarily used on air-cooled Volkswagen engines to connect the fan shroud outlets to the heat exchangers (heater boxes), ensuring correct airflow for cabin heating and proper engine cooling.
The hose measures 1000mm long with a 50mm internal diameter. One length is normally sufficient to cut in half and replace both left and right heater box hoses on Type 1 engines. If replacing the air cleaner warm-air pre-heat hose at the same time, a second length will be required.
Manufactured from traditional corrugated paper material, this hose closely replicates the original factory fitment used across classic VW air-cooled models. It can also be used anywhere a 50mm ID warm-air duct is required, including selected water-cooled applications.
Internal diameter: 50mm
Length: 1000mm
Material: Paper / cardboard
Use: Fan shroud to heat exchanger, air cleaner warm-air feed
Vehicle fitment
Air-cooled fitment
VW Beetle Type 1 / 1200–1600
1960–1985 (Saloon & Convertible, incl. 1302 & 1303)
VW Karmann Ghia (T14 / T34)
1964–1974 (Coupe & Convertible)
VW The Thing / Type 181
1969–1979
VW Transporter T1 (Split Bus)
1962–1968 (Bus, Van & Platform/Chassis)
VW Transporter T2 (Baywindow)
1967–1979 (Bus, Van & Platform/Chassis)
Porsche 914 (air-cooled Type 4)
1969–1976 (1.7, 1.8 & 2.0)
Air-cooled engine codes:
D, F, AB, AR, H, L, B, AD, AE, AF, AH, AJ, AK, AS, CT, CZ, CU, GD, GE
Water-cooled fitment
VW Transporter T3 / T25 (Petrol)
1979–1992 – 1.6 & 1.9 petrol (Bus, Van, Platform/Chassis)
VW Transporter T4
1990–2003 – 1.9 Diesel, 2.4 Diesel, 2.5 Petrol (Bus, Van, Platform/Chassis)
VW Caddy Mk1 (Pickup)
1982–1983 – 1.5 & 1.6 Petrol
VW Golf Mk1
1975–1984 – 1.6 Petrol (Hatchback & Cabriolet)
VW Golf Mk2
1983–1992 – 1.0 & 1.3 Petrol
VW Golf Mk3
1991–1997 – 1.4 Petrol
VW Jetta Mk1 & Mk2
1978–1991 – 1.3–1.6 Petrol
VW Vento
1991–1998 – 1.4 Petrol
VW Polo Mk2 (86C)
1982–1994 – 1.0–1.3 Petrol (all body styles)
VW Scirocco Mk1 & Mk2
1975–1989 – 1.3–1.6 Petrol
VW K70
1970–1974 – 1.6 Petrol
VW LT Mk1
1975–1983 – 2.0 Petrol
Water-cooled engine codes:
DF, DG, SP, 1X, ABL, AAB, AAF, ACU, AEN, HK, GH, JB, EM, FP, FT, HZ, 2G, GT, MH, NU, NZ, EW, HN, ABD, 3F, AAK, AAU, AAV, ACM, GK, HB, HH, PY
