Oil Pipes & Hoses

To Fit:
Porsche 911 (964 Turbo) 1990-1994 3.3 turbo Engines
DO88 hoses are entirely manufactured in high quality silicone for best finish and durability. With three to five layers of reinforcement depending of the inner diameter, the hoses withstand high pressure rates and high temperatures for a long time. The original hoses are manufactured in rubber that often cracks from age. This is a durable solution that in addition improves the looks!
These hoses feature an extra flourosilicone layer to make them more oil resistant than normal hoses for better performance!
Hoses included:
• Oil thermostat hose 96420724101, 96420724104, 96420724106
• Oil thermostat hose 96420725102, 96420725103
• Oil tank hose Reference: 96420721700
• Oil tank hose 96420713002, 96420713004
• Oil tank hose 96420724702
• Oil tank hose 96420717700
• Breather hose 93020704301
• Breather hose 93020731400
• Breather hose 93020731600
• Breather hose 93020714503
• Oil tank hose 93010739402, 99923600750, 00004320495
• Breather hose * 93010739703
• Breather hose * 93010739703
• Breather hose * 93020714502
Important information! * The pressed hose clamps needs to be cut on the two original hoses and then the hose connection and the steel pipe must be reused. They are installed on the new silicone hoses with regular hose clamps.
All part numbers from the vehicle manufacturer are only stated as reference.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DO88-KIT158S
The product you are viewing cross references to these numbers
- Porsche 964 (911) TURBO 3.3L 1991-93

To Fit:
Porsche 911 (964 Turbo) 1990-1994 3.3 turbo Engines
Kit of 29 clamps:
The kit contains all necessary hose clamps to install the specified hose kit. The included clamps are a high quality standard design type in all stainless steel (W4 class) with a stamped band to minimise impact on hose surface.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
CLAMP-KIT158
The product you are viewing cross references to these numbers
- Porsche 964 (911) TURBO 3.3L 1991-93
Connecting hose vent cover
Fits:
Porsche 964 C2 / C4 1989-94
Diagram ref no 36
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420732700
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
Connecting hose vent cover
Fits:
Porsche 964 C2 / C4 1989-94
Diagram ref no 36
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420732700
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
Fits:
Porsche 964 1989-94
* For cars with thermostat part number:
96420704703
96420704706
Diagram Ref No 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420724104
The product you are viewing cross references to these numbers
- 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
Fits:
Porsche 964 1989-94
* For cars with thermostat part number:
96420704703
96420704706
Diagram Ref No 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420724104
The product you are viewing cross references to these numbers
- 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
Fits:
Porsche 964 1989-94
* For cars with thermostat part number:
96420704705
96420704307
96420704308
Diagram Ref No 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420724107
The product you are viewing cross references to these numbers
- 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
Fits:
Porsche 964 1989-94
* For cars with thermostat part number:
96420704705
96420704307
96420704308
Diagram Ref No 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420724107
The product you are viewing cross references to these numbers
- 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
Fits:
Porsche 964 1989-94
*For cars with Thermostat Part Number:
96420704703
96420704306
Diagram ref no 22
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420725102
The product you are viewing cross references to these numbers
- 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
Fits:
Porsche 964 1989-94
*For cars with Thermostat Part Number:
96420704703
96420704306
Diagram ref no 22
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420725102
The product you are viewing cross references to these numbers
- 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

To Fit:
Porsche 911 (964 Turbo) 1990-1994 3.3L turbo engines
These DO88 hoses are entirely manufactured in high quality silicone for the best possible finish as well as strength and durability. With three to five layers of reinforcement dependent on the inner diameter, these hoses withstand high pressure rates and high temperatures for extended periods of time. The original hoses are manufactured in rubber that often crack and perish with age. This kit is a durable solution that also improves the appearance under the bonnet!
Please refer to the product images for confirmation of position of the hose.
*** The factory pressed hose clamps needs to be cut on these hoses and reuse the original hose connection and the steel pipe. They are installed on the new silicone hoses with regular hose clamps. See large images for more details ***
Hoses included in this kit:
• Oil thermostat hose - Reference: 96420724101, 96420724104, 96420724106
• Oil thermostat hose - Reference: 96420725102, 96420725103
• Oil tank hose - Reference: 96420721700
• Oil tank hose - Reference: 96420713002, 96420713004
• Oil tank hose - Reference: 96420724702
• Oil tank hose - Reference: 96420717700
• Breather hose * - Reference: 93010739703
• Breather hose * - Reference: 93010739703
• Breather hose * - Reference: 93020714502
• Breather hose - Reference: 93020704301
• Breather hose - Reference: 93020731400
• Breather hose - Reference: 93020731600
• Breather hose - Reference: 93020714503
• Oil tank hose - Reference: 93010739402, 99923600750, 00004320495
All OEM part numbers from the vehicle manufacturer are only stated as a reference.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DO88-KIT158S
The product you are viewing cross references to these numbers
- Porsche 964 (911) TURBO 3.3L 1991-93

To Fit:
Porsche 911 (964 Turbo) 1990-1994 3.3 turbo Engines
The kit contains all necessary hose clamps to install the specified hose kit. The included clamps are a high quality standard design type in all stainless steel (W4 class) with a stamped band to minimize impact on hose surface.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
DO88-CLAMPKIT158
The product you are viewing cross references to these numbers
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95

Fits:
Porsche 964 C2 1990-94 Tiptronic
Click 'Zoom in' for large parts diagram.
Diagram ref no 15
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94330707002
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93

Fits:
Porsche 911 1984-89
Porsche 964 1989-94
Porsche 993 1995-98
Click 'Zoom in' for large parts diagram.
Diagram ref no 10
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951116202
The product you are viewing cross references to these numbers
- 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 964 1989-94
Click 'Zoom in' for large parts diagram.
Diagram Ref No 27.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951235602
The product you are viewing cross references to these numbers
- 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
Fits:
Porsche 964 1989-94
Diagram Ref No 30
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420713004
The product you are viewing cross references to these numbers
- 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
Engine Oil Pipes & Hoses – Reliable Lubrication Flow for Porsche Performance
The engine oil pipes and hoses in your Porsche are essential components of the lubrication system, responsible for transporting oil between the engine, oil cooler, and various internal components. These lines maintain the correct oil pressure and flow, ensuring smooth operation, reduced friction, and long-term protection of your high-performance engine.
At Design911, we supply a wide range of oil pipes and hoses developed to meet the high standards of Porsche vehicles. Manufactured using heat-resistant rubber, reinforced steel, or braided lines, these components are designed for durability, leak prevention, and perfect fitment. Whether you’re maintaining a classic 911 or servicing a modern Cayman or Panamera, our manufacturer-quality oil hoses ensure reliable oil circulation and peak performance.
What Do Engine Oil Pipes and Hoses Do?
Oil pipes and hoses are critical for transporting pressurised oil through the engine’s lubrication and cooling circuits.
Core Functions:
- Carry
oil between the engine block, oil cooler, and filter housing.
- Maintain
consistent oil pressure for proper lubrication.
- Prevent
leaks and ensure stable oil flow under all conditions.
- Assist with cooling, transferring hot oil to radiators or heat exchangers.
Without functioning oil pipes and hoses, oil flow becomes inconsistent — leading to reduced lubrication, overheating, and potential engine damage.
Why Do Oil Pipes and Hoses Fail?
Over time, exposure to heat, pressure, and oil contamination causes hoses and pipes to weaken or deteriorate.
Common Causes of Failure Include:
- Age-related
hardening or cracking of rubber hoses.
- Corrosion
or fatigue in metal or braided lines.
- Loose
fittings or clamps leading to leaks.
- Oil
degradation that damages internal linings.
- Vibration and heat cycles, especially in performance engines.
Symptoms of failure include visible oil leaks, burning smells, low oil pressure, or warning lights — all of which indicate it’s time for inspection or replacement.
Why Replace Oil Pipes & Hoses?
Replacing damaged or leaking oil pipes ensures reliable lubrication and pressure regulation throughout your engine. Our high-quality, direct-fit replacements are designed to restore original flow characteristics, prevent leaks, and resist the extreme conditions found in performance driving.
Key Benefits:
- Restores correct oil pressure and flow.
- Prevents leaks and contamination.
- Improves lubrication and cooling efficiency.
- Constructed from durable, oil- and heat-resistant materials.
- Compatible with air-cooled and water-cooled Porsche models.
- Ideal for engine rebuilds, servicing, and preventive maintenance.
Precision oil hoses and pipes are essential for keeping your Porsche’s lubrication system performing at its best — ensuring reliability and longevity on road or track.
Highlights:
- Precision-engineered oil pipes and hoses for Porsche engines.
- High-strength, corrosion-resistant materials for long service life.
- Direct-fit replacements designed for leak-free operation.
- Improves lubrication reliability and oil pressure stability.
- Perfect for maintenance, upgrades, or full engine rebuilds.
- Suitable for classic air-cooled and modern Porsche models.