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- Accessories
- Brakes
- Chassis / Bodywork
- Clothing & Gifts
- Electrical & Relays
- Engine Cooling
- Engine Electrical
- Engine Rebuild Parts
- Engine Tuning
- Exhausts
- Exterior Styling / Spoilers
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Original Porsche Part Genuine Porsche part 64421100300
• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.
Before purchasing thoroughly check part to confirm compatibility.
- We are unable to provide fitting details for this product at this time. Please contact us for further information.
Fits:
Porsche 356 / 356A / 356B / 356C 1950-65
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64421100
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
The OE MATCH Heater Box, Black Powder Coated, Pair is a high-quality replacement set of heater boxes designed for classic Porsche heating systems. These heater boxes surround the exhaust heat exchangers and capture heat generated by the engine's exhaust system, directing warm air into the cabin through the vehicle's heating and ventilation ducts.
Fits:
- Porsche 356A 1955-59
Diagram Ref No 2
Finished in a durable black powder-coated coating, these heater boxes offer enhanced corrosion resistance, improved durability, and an original-style appearance. Manufactured to OE specifications, they provide proper fitment, efficient heat transfer, and reliable operation, making them ideal for restoration projects or replacing corroded and damaged original units.
What This Product Does:
- Captures heat generated by the exhaust heat exchangers
- Directs warm air into the cabin heating system
- Provides efficient cabin heating and demisting performance
- Helps maintain passenger comfort in cold weather
- Protects heating system airflow around the heat exchangers
- Supports proper operation of the vehicle's heating and ventilation system
Symptoms Of Wear Or Failure:
- Poor cabin heating performance
- Reduced airflow from heating vents
- Rust, corrosion, or perforation of the heater box housing
- Heat loss before warm air reaches the cabin
- Exhaust fumes entering the heating system
- Rattling or vibration from damaged housings
- Uneven cabin temperatures Visible deterioration of heater box components
Why Replacement Matters:
- Restores efficient cabin heating performance
- Improves airflow and heat delivery to the passenger compartment
- Helps prevent heat loss within the heating system
- Reduces the risk of exhaust fumes entering the cabin
- Protects heat exchangers and heating system components
- Improves vehicle comfort during cold weather operation
- Supports accurate restoration of classicPorsche models
- Provides long-term corrosion resistance and durability with black powder-coated protection
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64421102100
The product you are viewing cross references to these numbers
- Porsche 356A 1955-59
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 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 356C 1964-65
COUPE -REUTTER-
COUPE -KARMANN-
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64421100
The product you are viewing cross references to these numbers
- Porsche 356C 1963-65

Fits:
Porsche 356 B model T.5 Europe 1.6-2.0L
This kit doesn't come with gaskets, bolts, nuts etc. All available separately.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT13
The product you are viewing cross references to these numbers
- Porsche 356B 1959-63

Fits:
Porsche 356 A 1.6L 1955-59
This kit doesn't come with gaskets, bolts, nuts etc. All available separately.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT15
The product you are viewing cross references to these numbers
- Porsche 356A 1955-59

Fits:
Porsche 356 B model T.5 Europe 1.6-2.0L
This kit doesn't come with gaskets, bolts, nuts etc. All available separately.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT16
The product you are viewing cross references to these numbers
- Porsche 356B 1959-63
Sold as a pair
Fits:
Porsche 356A - 1955 to 1959
Porsche 356B - 1959 to 1963
Porsche 356C - 1963 to 1969
This is the heater cable control butterfly lever that is the one part that always bends. This is the heater cable lever that holds the two barrel bolts that controls the heat in your car.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64421176000
The product you are viewing cross references to these numbers
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 356C 1964-65
COUPE -REUTTER-
COUPE -KARMANN-
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64421100
The product you are viewing cross references to these numbers
- Porsche 356C 1963-65