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4 4 4 4

clamp hose spring 8.5-10.5mm. Porsche 911 / 964 / 993 / 986 / 996 / 997

99951252700

Product Information

clamp hose spring 8.5-10.5mm.

porsche

Fits:
Porsche 911 - 1984 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Porsche - 996 - 1997 to 2005
Porsche 997.1 turbo / GT2 -
Porsche 986 Boxster - 1997 to 2004
Porsche 987.1 Boxster / Cayman - 2005 to 2008

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Diagram Ref No 20

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99951252700

99951252700

N 10002001

N10002001

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Headlamp washer hose 10x16. Porsche 911 / 964 / 924 / 944 / 968 / 928

99918180640

Product Information

Headlamp washer hose 10x16mm
Sold in 1m lengths

porsche

Fits:
Porsche 911 - 1978 to 1989
Porsche 964 - 1989 to 1994
Porsche 924 - 1976 to 1978
Porsche 944 - turbo 1985 to 1991
Porsche 968 - 1992 to 1995
Porsche 928 - 1978 to 1995

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Diagram ref no 4 and 5

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99918180640

99918180640

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Headlamp washer jet nut. Porsche 911 / 964

90028100240

Product Information

Headlamp washer jet nut.
nylon

porsche

Fits:
Porsche 911 1978-89
Porsche 964 1989-94
Porsche 928 1978-95

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Diagram ref no 12

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90028100240

90028100240

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3 3 3

Headlamp washer jet. Porsche 911 / 964

9116280710101C

Product Information

Headlamp washer jet.
Fits - left or right, Sold each.

porsche

Fits:
Porsche 911 1985-89
Porsche 964 1989-94

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9116280710101C

9116280710101C

91162807101

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4 4 4 4

Headlamp washer pump. Porsche 911 / 964 / 924 / 928 / 944

191955681

Product Information

Headlamp washer pump.

porsche

Fits:
Porsche 911 1974-79 (Original pump is no longer available. This is retrofit pump)
Porsche 911 1980-89
Porsche 924 1979-85
Porsche 924S 1986-88
Porsche 928 1978-95
Porsche 944 1982-91
Porsche 964 1989-94

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191955681

477955679A

191955681

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4 4 4 4

Headlamp washer pump. Porsche 911 / 964 / 924 / 928 / 944

191955681/1

Product Information

Headlamp washer pump.

febi

Please also add to basket connector plug 171909 to match the pump connector.

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191955681

477955679A

8TW004764021

92862819100

191955681

171909

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Intense Windscreen Washer pump. Porsche 911 / 928 / 964

PCG52865100

Product Information

Intense Windscreen Washer pump. Porsche 911 / 928 / 964

porsche

Fits:
Porsche 911 3.2L, 3.3L 1984-89
Porsche 928 S4, GT 1987-91
Porsche 964 1989-94

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PCG52865100

431955651

PCG52865100

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3 3 3

Intense Windscreen Washer pump. Porsche 911 / 928 / 964

PCG52865100/1

Product Information

Intense Windscreen Washer pump. Porsche 911 / 928 / 964

febi

431955651

PCG52865100

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5 5 5 5 5

Intensive windscreen washer reservoir. Porsche 911 / 964 / 993

96452801902

Product Information

Intensive windscreen washer reservoir.

porsche

Fits:
Porsche 911 1984-89
Porsche 964 1989-94
Porsche 993 1994-98

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Diagram ref no 19

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96452801902

96452801902

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3 3 3

Sealing grommet headlamp washer motor. Porsche 911 / 964 / 993 / 996 / 997 / 986 / 987

92862819300

Product Information

Sealing grommet headlamp washer motor.

porsche

Fits:
Porsche 986 Boxster - 1997 to 2004
Porsche 987 Boxster / Cayman - 2005 to 2012
Porsche 911 - 1980 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Porsche 996 - 1997 to 2005
Porsche 997 - 2005 to 2012

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Diagram ref no 3

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92862819300

92862819300

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3 3 3

Valve. Porsche 911 / 928 / 944 / 964 / 968

281955187

Product Information

Valve.

Fits:
Porsche 911 1984-89
Porsche 964 1989-94
Porsche 944 85-88 Turbo
Porsche 944 1989-91
Porsche 928 1983-95
Porsche 968 1992-95

Diagram ref No. 16

Washer Pump Grommet for Various Porsches

431955465B

Product Information

Washer Pump Grommet for Various Porsches.

porsche

Fits:
Porsche 911 1984-89
Porsche 928 1987-95
Porsche 944 89-91
Porsche 964
Porsche 993
Porsche 986
Porsche 987
Porsche 996
Porsche 997
Porsche 970 Panamera

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431955465B

431955465B

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3 3 3

Water level sender unit, windscreen washer reservoir. Porsche 964 / 993

96462818500

Product Information

Screen Wash Reservoir Level Sender Unit – Restore Accurate Washer Fluid Monitoring

This screen wash reservoir level sender unit is designed for the classic Porsche 964 and Porsche 993 models. It monitors the washer fluid level inside the reservoir and communicates with the dashboard warning system, ensuring the driver is alerted when the fluid level falls too low.

Fits:

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

Diagram ref no 6

Over the years, the original sender units can fail due to age, internal corrosion, worn float mechanisms or electrical degradation. When the sender fails, the dashboard may continuously display a low-level warning—or fail to warn at all—creating both inconvenience and a potential visibility hazard during poor weather conditions. Replacing the sender restores reliable fluid level detection and proper operation of the washer system.

What the Screen Wash Level Sender Unit Does

The sender unit:

Detects the washer fluid level inside the reservoir
Triggers the dashboard warning light when fluid is low
Ensures driver visibility by prompting timely refills
Prevents pump dry-running, which can shorten pump lifespan
Integrates directly with the washer system wiring harness

This small but critical component keeps the washer system functional and reliable.

Why Washer Reservoir Sender Units Fail

Typical failure causes include:

Float mechanism swelling or sticking due to age or contamination
Internal corrosion from moisture exposure
Electrical contact wear, leading to intermittent signals
Cracked housings, allowing fluid entry
Heat cycles and vibration, degrading internal components
Build-up of washer fluid additives, causing float resistance

Symptoms include false dashboard warnings, no warning despite low fluid, erratic indicator behaviour or complete sensor failure.

Why You Should Replace a Faulty Level Sender Unit

Replacing the level sender ensures:

Accurate washer fluid monitoring
Restored dashboard warning functionality
Improved driving safety in wet or dirty conditions
Prevention of washer pump damage
Reliable operation of a system essential for road visibility
Preservation of originality and functionality in 964/993 classics

A new sender unit is a simple but essential upgrade for maintaining the practicality and reliability of older Porsche models.

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96462818500

96462818500

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Water Reservoir. Porsche 964 1990-94

96452807303

Product Information

Water Reservoir.
porsche

Fits:
Porsche 964 1990-94

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96452807303

96452807302

96452807303

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Windscreen washer jet. Porsche 964 / 993 / 968

9936280770001C

Product Information

Windscreen washer jet.
Fits - RIGHT

porsche

Fits:
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 968 1992-95

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9936280770001C

9936280770001C

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Windscreen washer jet. Porsche 964 / 993 / 968

9936280770101C

Product Information

Windscreen washer jet.
Fits - LEFT

porsche

Fits:
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 968 1992-95

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About Washer pumps / bottles / jets

Washer Pumps, Washer Bottles & Washer Jets – Clear Vision for Every Drive

Washer pumps, bottles, and jets are key components of your Porsche’s windscreen cleaning system. They work together to deliver washer fluid from the reservoir through the pump and jets, keeping your windscreen clear of dirt, bugs, and debris for safe driving visibility in all conditions.

At Design911, we supply a comprehensive range of genuine and high-quality washer system components - including washer bottles (reservoirs), electric washer pumps, and precision spray jets — for all Porsche models such as the 911, Boxster, Cayman, Cayenne, Macan, and Panamera. Every part is designed to offer high levels of fitment and performance for dependable cleaning power and long-term reliability.

What Do Washer Pumps, Bottles and Jets Do?

Washer Bottle / Reservoir: Stores the washer fluid and is typically located in the engine bay or boot area.
Washer Pump: An electric motor that pressurises the fluid and pushes it through the lines toward the
Washer Jets / Nozzles: Deliver a fine, even spray of fluid onto the windscreen or headlights for effective cleaning coverage.

Together, these components ensure your windscreen remains clean and streak-free, maintaining visibility and safety in all weather conditions.

Why Do Washer Components Fail?
Over time, washer system parts can degrade or fail due to wear, contamination, or environmental exposure. Common causes include:

Pump failure due to internal corrosion or debris blocking the impeller.
Leaking washer bottles from cracks, freezing, or age-related wear.
Clogged jets caused by limescale, dirt, or poor-quality washer fluid.
Electrical issues such as damaged wiring or corroded connectors.
Perished hoses or seals leading to fluid leaks and reduced pressure.

Symptoms of failure include weak or no spray from the jets, fluid leaks, or a pump that doesn’t activate when the washer stalk is used.

Why Replace Faulty Washer Components?

A properly functioning washer system is essential for visibility and road safety. Replacing worn or damaged components ensures your windscreen remains clean and clear in all driving conditions.

Benefits of replacement include:

Restored washer performance and pressure.
Improved visibility and safety in rain or road spray.
Prevention of leaks and electrical damage.
High-quality parts for perfect fitment and durability.

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Washer pumps / bottles / jets

windscreen washer system 964 1989-94 904-10

headlight washer system 964 1989-94 904-20

brake fluid reservoir, brake master cylinder 964 CARRERA 2 1989-94 604-01