Part Reference:

Below: Type 4 Bus Motor from the top rear. Note: a fuel-injected 1978 motor is shown.

Type 4 motors were used in 1972-1979 Buses. 1972-1974 motors had basically the same parts, 1975-1978 were similar to each other and 1979 had an injected motor like the 1975-1978 motor, but had similar exhaust and engine tin parts to the 1972-1974 motors.

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1972-1974 & 1979 VW Bus Motors.

’72-’74 and ’79 VW Buses have similar exhaust, engine tin, heater boxes and heat tubes, although there are some differences. The ’72-’74 Buses were carbureted whereas the 1979 Buses were fuel injected. Because of that the fuel injected ’79 Bus did not have the pre-heat duct on the front right of the motor. Also the ’79 heater boxes have the air-cooled Vanagon style, square exhaust ports, so they are different from the ’72-’74 heater boxes and are one-year-only items.

’72-’74 Bus engine – the right side of the engine looking from the front

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’72-’74 & ’79 Bus Engine – The left side of the engine looking from the front

Note: The left front tube pictured below is missing it’s bottom clamp and is not connected to the heater box.

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A ’72-’74 & ’79 Motor looking at the right heater box

Note: The bus shown is a (rusty) 1979 Bus

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A ’79 Bus engine looking at the right heater box from the front

Note: the Lower Right Warm Air Duct Tin is missing in the photo below, although it is the same as ’80-’83 Vanagon and is the same as ’72-’74 tin except it doesn’t have the extra hole.

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Below: A Bus motor from the rear right without the alternator installed.

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