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Design 911
Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors.
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Original Porsche Part Genuine Porsche part 99923601000
Code: 99923601000
Genuine Porsche part
Original Porsche Part
Additional information:
• 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.
• 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.
Vehicle Group
- We are unable to provide fitting details for this product at this time. Please contact us for further information.
Price: £25.87
Orderable - 14 - 28 Days
Related products
PCG236008A/1
Product Information
The OE Match 700mm Long Cloth Covered Rubber Breather Hose is a high-quality replacement hose designed for Porsche 911 engine breather and oil ventilation systems. Manufactured from durable oil-resistant rubber with a traditional cloth-braided outer covering, it replicates the appearance and function of the original factory component while providing reliable performance and longevity.
Fits:
Diagram Ref No 12
This breather hose forms a vital connection within the engine's crankcase ventilation system, allowing oil vapours and excess pressure to be safely routed away from the engine. The cloth-covered construction helps maintain an authentic factory-correct appearance, making it ideal for both maintenance and restoration projects.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG236008A
The product you are viewing cross references to these numbers
Product Information
700mm Long Cloth Covered Rubber Breather Hose.The OE Match 700mm Long Cloth Covered Rubber Breather Hose is a high-quality replacement hose designed for Porsche 911 engine breather and oil ventilation systems. Manufactured from durable oil-resistant rubber with a traditional cloth-braided outer covering, it replicates the appearance and function of the original factory component while providing reliable performance and longevity.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- 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
Diagram Ref No 12
This breather hose forms a vital connection within the engine's crankcase ventilation system, allowing oil vapours and excess pressure to be safely routed away from the engine. The cloth-covered construction helps maintain an authentic factory-correct appearance, making it ideal for both maintenance and restoration projects.
What This Product Does:
- Connects key components within the engine breather and oil ventilation system.
- Allows crankcase gases and oil vapours to circulate correctly.
- Helps regulate internal engine pressure.
- Supports efficient engine operation and oil system performance.
- Reduces the risk of oil leaks caused by excessive crankcase pressure.
Symptoms Of Wear Or Failure:
- Cracks, splits or perished rubber.
- Oil leaks or oil residue around the hose and connections.
- Strong oil vapour smells from the engine bay.
- Hardened, brittle or collapsed hose sections.
- Excessive crankcase pressure.
- Increased oil mist contamination within the engine compartment.
- Poor engine breathing and ventilation performance.
Why Replacement Matters:
- Breather hoses are constantly exposed to engine heat, oil vapours, pressure fluctuations and vibration. Over time, the rubber can harden, crack or deteriorate, compromising the integrity of the ventilation system. A damaged breather hose can lead to oil leaks, pressure build-up, contamination of engine components and increased wear on seals and gaskets.
- Replacing a worn breather hose helps maintain correct crankcase ventilation, prevents unnecessary oil leaks, protects surrounding engine components and ensures the engine's oil system continues to operate as intended. Regular replacement is an important part of maintaining reliability and preserving the performance of your classic Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG236008A
00004320516
90110739300
90110739400
90110739301
99923600850
PCG236008A
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- 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
Price: £25.00
In Stock - 3- 5 Days Dispatch
PCG236008A
Product Information
Fits:
Porsche 911 1965-83
This hose runs from the oil reservoir tank to the rear of the engine. Fits all 2.7L and 3.0L naturally aspirated 911 models built between 1974 and 1983, as well as all 3.0L 911 Turbo models built between 1976 and 1977.
This product supersedes Porsche's old part numbers:
- 90110739300
- 90110739400
- 90110739301
- 99923600850
- 00004320516
Diagram Ref No 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG236008A
The product you are viewing cross references to these numbers
Product Information
Breather hose. 645mmFits:
Porsche 911 1965-83
This hose runs from the oil reservoir tank to the rear of the engine. Fits all 2.7L and 3.0L naturally aspirated 911 models built between 1974 and 1983, as well as all 3.0L 911 Turbo models built between 1976 and 1977.
This product supersedes Porsche's old part numbers:
- 90110739300
- 90110739400
- 90110739301
- 99923600850
- 00004320516
Diagram Ref No 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG236008A
00004320516
90110739300
90110739301
90110739400
90110739401
90110739402
90110739403
90110739404
90110739405
91110739400
93010739405
95920711400
95920721500
99923600850
PCG236008A
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- 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
Price: £84.80
In Stock - 3- 5 Days Dispatch
KIT141S
Product Information
Made from high quality silicone rubber with 3 layer polyester reinforcement.

To Fit:
Porsche 911 (930 Turbo) 1978 to 1989 all models with 3.3 Turbo engine
Hoses included:
• Top connection oil separator / oil filling tube / air filter box - OEM ref 93010739504 / 93010799500
• Middle connection oil separator - OEM ref 93010739100
• Bottom connection oil separator - OEM ref 93010738904
• Bottom connection oil separator to oil tank *** - OEM ref 93010738906
• Breather hose cylinder head *** - OEM ref 93010739701
• Oil cooler /oil tank - OEM ref 93010723302
• Venting hose Turbo oil tank to / filter box - OEM ref 93010739402 / 99923600750 / 00004320495
*** The factory pressed hose clamps needs to be cut on these hoses and reuse the hose connection and the steel pipe. They are installed on the new silicone hoses with regular hose clamps. See large images for more details ***
Please refer to the product images for confirmation of position of the hoses.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
KIT141S
The product you are viewing cross references to these numbers
Product Information
Silicone Oil hose kit.Made from high quality silicone rubber with 3 layer polyester reinforcement.

To Fit:
Porsche 911 (930 Turbo) 1978 to 1989 all models with 3.3 Turbo engine
Hoses included:
• Top connection oil separator / oil filling tube / air filter box - OEM ref 93010739504 / 93010799500
• Middle connection oil separator - OEM ref 93010739100
• Bottom connection oil separator - OEM ref 93010738904
• Bottom connection oil separator to oil tank *** - OEM ref 93010738906
• Breather hose cylinder head *** - OEM ref 93010739701
• Oil cooler /oil tank - OEM ref 93010723302
• Venting hose Turbo oil tank to / filter box - OEM ref 93010739402 / 99923600750 / 00004320495
*** The factory pressed hose clamps needs to be cut on these hoses and reuse the hose connection and the steel pipe. They are installed on the new silicone hoses with regular hose clamps. See large images for more details ***
Please refer to the product images for confirmation of position of the hoses.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
KIT141S
93010739504
93010799500
93010739100
93010738904
93010738906
93010739701
93010723302
93010739402
99923600750
00004320495
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 911 1978-1989 3.3L Turbo (930)
Price: £462.08
In Stock - 3- 5 Days Dispatch
DO88-KIT158S
Product Information

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
Product Information
Oil hose kit. 
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
96420724104
96420724106
96420725102
96420725103
96420721700
96420713002
96420713004
96420724702
96420717700
93010739703
93010739703
93020704301
93020731400
93020731600
93020714503
93010739402
99923600750
00004320495
96420724101
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 964 (911) TURBO 3.3L 1991-93
Price: £692.75
Orderable - 7 to 14 Days
DO88-CLAMPKIT158
Product Information

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
Product Information
Clamp kit for use with Porsche 964 Turbo Oil Hose Kit #DO88-KIT158S
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
96420724104
96420724106
96420725102
96420725103
96420721700
96420713002
96420713004
96420724702
96420717700
93010739703
93010739703
93020704301
93020731400
93020731600
93020714503
93010739402
99923600750
00004320495
96420724101
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- 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
Price: £57.85
In Stock - 3- 5 Days Dispatch
DO88-KIT158S::1
Product Information

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
Product Information
Oil breather and separator hose kit.
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
96420724101
96420724104
96420724106
96420725102
96420725103
96420721700
96420713002
96420713004
96420724702
96420717700
93020704301
93020731400
93020731600
93020714503
93010739402
99923600750
00004320495
93010739703
93010739703
93020714502
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 964 (911) TURBO 3.3L 1991-93
Price: £692.75
Orderable - 7 to 14 Days
CLAMP-KIT158
Product Information

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
Product Information
Stainless steel clamp kit for Oil breather and separator hose kit #DO88-KIT158S
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
96420724101
96420724104
96420724106
96420725102
96420725103
96420721700
96420713002
96420713004
96420724702
96420717700
93020704301
93020731400
93020731600
93020714503
93010739402
99923600750
00004320495
93010739703
93010739703
93020714502
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 964 (911) TURBO 3.3L 1991-93
Price: £57.85
Orderable - 7 to 14 Days
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