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Engine Tinware
Designed for classic air-cooled engines, this duct plays a crucial role in managing airflow within the engine bay. It ensures that sufficient cooling air reaches the oil cooler, which is essential for maintaining proper oil temperature and overall engine health.
Fits:
Porsche 911 - 1972 to 1989
Porsche 914-6 - 1970 to 1976
Diagram ref no 3
The air duct channels cooling air directly to the oil cooler, ensuring efficient heat dissipation from engine oil. This helps maintain stable oil temperatures and prevents overheating in air-cooled engines. Proper airflow management is critical for consistent engine performance and longevity.
Function
• Directs cooling air to the oil cooler
• Improves heat dissipation from engine oil
• Supports stable engine operating temperatures
• Ensures efficient airflow within engine tinware system
Over time, air ducts can crack, warp, or go missing during engine work. A damaged or missing duct reduces airflow to the oil cooler, leading to higher oil temperatures and potential engine wear. Replacing this component ensures proper cooling airflow, protects engine components, and maintains optimal performance - especially important for air-cooled engines.
When to replace:
• Cracked, broken, or missing duct
• Overheating or high oil temperatures
• During engine rebuild or restoration
• Poor airflow or incorrect engine tinware setup
• Preventative maintenance on classic vehicles
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110640601
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Fits:
Porsche 911 SC 3.0L 1978>>1983
Porsche 911 3.2L 1984>>1989
Porsche 911 Turbo (930) 3.3L 1978>>1989
Porsche 964 Carrera 3.6L1989>>1994*
Porsche 964 Turbo 3.3L 1991>>1992
Porsche 964 Turbo 3.6L 1993>>1995
Porsche 993 Carrera 3.6L 1994>>1998*
Porsche 993 Turbo 3.6L 1995>>1998*
Porsche 959 2.8L 1987>>1988
*NOTE: On 964 Carrera And All 993 Models, This Bolt Is Used Only For The Engine Cover—Not For The Fan Shroud.
Diagram Ref No 10 | Fan Shroud
Diagram Ref No 11 | Engine Cover
- The Diagrams Shown Are From A 1989 911 3.2L. Placement And Quantities Will Vary Slightly By Model.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99907503903
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 911 SC 3.0L 1978-83
Porsche 911 3.2L 1984-89
Porsche 911 Turbo (930) 3.3L 1978-89
Porsche 964 Carrera 3.6L1989-94*
Porsche 964 Turbo 3.3L 1991-92
Porsche 964 Turbo 3.6L 1993-95
Porsche 993 Carrera 3.6L 1994-98*
Porsche 993 Turbo 3.6L 1995-98*
Porsche 959 2.8L 1987-88
*NOTE: On 964 Carrera and all 993 models, this bolt is used only for the engine cover—not for the fan shroud.
Diagram Ref. 10 | Fan Shroud
Diagram Ref. 11 | Engine Cover
- The diagrams shown are from a 1989 911 3.2L. Placement and quantities will vary slightly by model.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99907503903
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits
Porsche 911 - 2.4ltr
Porsche 911 - 2.7ltr / 3.0ltr
Porsche 911 - 3.2ltr
Improve the look of your engine bay with this full carbon fibre fan shroud.
These come in a high gloss finish and are a perfect fit.
These can have a 6 week lead time from order
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SC1
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
-
air duct 911 1978-83 105-05
-
air duct engine cover 911 1978-83 105-10
-
air duct and engine cover 911 1970-73 105-05
-
air duct 911 1987-89 105-05
-
air duct engine cover 911 1987-89 105-10
-
air injection 911 TURBO 930.66/68 1987-89 108-07
-
Air duct 911 1984-86 105-05
-
air duct engine cover 911 1984-86 105-10
-
Air injection 911 TURBO 930.66/68 1984-86 108-07
-
Air Duct 911 1974-77 105-05
-
air duct 911 TURBO 1975-77 105-05
Engine Tinware – Precision Fit, Cooling Efficiency, and Protection for Porsche Engines
Engine tinware plays a crucial role in maintaining the cooling performance and efficiency of air-cooled Porsche engines. These panels, shrouds, and covers are designed to channel air precisely around the cylinders and heads, ensuring even temperature control and optimal performance. Without properly fitted tinware, your Porsche’s engine can overheat, lose efficiency, or suffer premature wear.
At Design911, we supply a comprehensive range of precision-engineered engine tinware crafted to match original design specifications. Each piece is manufactured from high-quality pressed steel or aluminium, ensuring accurate fitment, corrosion resistance, and durability.
Perfect for restoration projects and rebuilds, our heritage-grade tinware helps maintain proper airflow management and engine bay protection — essential for both performance and longevity.
What Does Engine Tinware Do?
In air-cooled Porsche engines, tinware serves as a thermal management system, directing airflow from the cooling fan to vital engine areas while shielding components from debris and heat.
Core Functions:
- Directs
airflow to cool cylinders, heads, and vital engine parts.
- Prevents
heat soak into the intake system and engine bay.
- Shields
electrical and mechanical components from dirt and debris.
- Maintains efficient combustion through stable engine temperatures.
Properly fitted tinware ensures your Porsche runs at the correct operating temperature, maximising efficiency, power output, and engine life.
Why Does Engine Tinware Fail?
Although made from durable materials, tinware is constantly exposed to vibration, moisture, oil, and heat. Over time, this environment can lead to corrosion, cracking, or warping.
Common Causes of Failure Include:
- Corrosion
and rust, especially in older or unrestored vehicles.
- Warping
or fatigue from repeated heat cycles.
- Vibration
damage or poor fitment during previous rebuilds.
- Oil
contamination, softening paint or coatings.
- Missing or ill-fitting panels, disrupting airflow and cooling balance.
Why Replace with Precision-Fit Engine Tinware?
Installing high-quality replacement tinware ensures that your Porsche’s cooling system performs as intended. Each component is precision-stamped and finished for accurate alignment and long-lasting corrosion protection.
Key Benefits:
- Restores proper airflow and cooling efficiency.
- Prevents overheating and extends engine life.
- Improves under-bonnet appearance and authenticity.
- Manufactured from premium-grade steel or aluminium.
- Perfect fitment for classic air-cooled Porsche engines.
- Ideal for restoration, rebuilds, or preventative maintenance.
Whether you’re restoring a 356, 911, 964 or 993 precision-engineered tinware is vital to achieving both period-correct presentation and peak mechanical performance.
Highlights:
- Full
range of engine tinware, shrouds, and panels for Porsche engines.
- Precision-formed
components for excellent fit and finish.
- High-strength,
corrosion-resistant materials for long-term reliability.
- Restores efficient cooling and protects internal components.
- Ideal for restoration and engine rebuild projects.
- Designed for classic air-cooled and early water-cooled Porsche models.