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Heater box return spring (early style). Porsche 356, 356A ❭ 53906644
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 356, 356A
Click 'Zoom in' for large parts diagram.
Diagram ref no 32
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
53906644
The product you are viewing cross references to these numbers
- Porsche 356B 1959-63
- Porsche 356C 1963-65
The OE MATCH Heater Box, Black Powder Coated, Pair is a premium-quality replacement set of heater boxes designed for classic Porsche heating systems. These heater boxes enclose the exhaust heat exchangers and channel heated air into the vehicle's cabin heating and ventilation system, providing effective interior heating, demisting, and occupant comfort.
Fits:
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Diagram Ref No 1
Manufactured to OE specifications and finished with a durable black powder-coated coating, these heater boxes offer excellent corrosion resistance, long-term durability, and an original-style appearance. They are ideal for restoration projects or replacing rusted, damaged, or deteriorated original units, helping to restore heating system efficiency and reliability.
What This Product Does:
- Captures heat generated by the exhaust heat exchangers
- Directs heated air into the cabin heating and ventilation system
- Provides effective interior heating and windscreen demisting
- Supports proper airflow through the heating system
- Helps maintain passenger comfort in colder weather
- Protects and channels airflow around the heat exchanger assemblies
Symptoms Of Wear Or Failure:
- Poor cabin heating output
- Reduced airflow from heating vents
- Rust, corrosion, or holes in the heater box housing
- Heat loss before warm air reaches the passenger compartment
- Exhaust fumes entering the cabin heating system
- Rattling or vibration caused by deteriorated housings
- Uneven cabin temperatures
- Visible deterioration or structural damage to the heater boxes
Why Replacement Matters:
- Restores efficient cabin heating and demisting performance
- Improves airflow through the heating system
- Reduces heat loss and improves heating efficiency
- Helps prevent exhaust fumes from entering the cabin
- Protects heating system components and heat exchangers
- Supports accurate restoration of classic Porsche models
- Provides long-lasting corrosion protection with black powder-coated finish
- Maintains vehicle comfort, safety, and reliability in all weather conditions
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64421102505
The product you are viewing cross references to these numbers
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Fits:
Porsche 356 A/B/C (1950 to 1965)
Click 'Zoom in' for large parts diagram.
Diagram ref nos 5, 6, 7, 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG35621100
The product you are viewing cross references to these numbers
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 356 (1950 to 1959; excluding Carrera)
Porsche 356 B/C (1960 to 1965)
Click 'Zoom in' for large parts diagram.
Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64421175501
The product you are viewing cross references to these numbers
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