do not press the back button…
-
Engine Parts
-
- Engine Rebuild Parts Oil System Parts Fuel System Parts Gaskets & Sets Radial Seal / RMS / Camshaft / Balance shaft Belts / Tensioners / Rollers Chains & Tensioners Timing covers and gaskets Engine Bearings / Shells Engine Valves / Guides / Springs Engine Bolts / Studs Engine Mounts Piston Rings Engine Cylinders / Liners / Pistons Connecting Rod Cylinder Head / Camshaft Carrier Camshaft covers / Gaskets Camshaft gears / sprockets and fixings Crankcase Parts Crankshaft & Parts Turbo Chargers / Intercoolers & Parts Air Intake & Injection Carburetors & Parts All Categories
-
Brakes
-
- Brakes Brake Pads & Disc Package Brake Pads Packages Brake Disc Standard Brake Pads Standard SPORTS Brake Disc Brembo Standard brakes Brembo Racing brakes TEXTAR Brakes PAGID Racing Brakes Zimmermann Brakes Performance Friction Brakes EBC Brakes Black Diamond Performance Brakes Brake Pad Wear Sensors Brake Pad Anti-vibration shims Caliper Bolts / Disc Screws Pin Kit and Guide Plates Performance Brake Hoses Standard Brake Hoses Caliper and Brake Lines Brake Calipers Brake Caliper Upgrades All Categories
-
-
Suspension & Steering
-
Transmission
-
- Gearbox / Transmission Clutch Kits Clutch Pressure Plate Clutch Release Bearings Clutch Cables & Parts Clutch Guide Tube Clutch Forks & Levers Clutch Bolts Gearbox Parts Driveshafts & Parts Gasket Sets / Gaskets / Seals / Lock Nuts Gearbox Mounts Gearshift Control Parts Flywheel / Torque CV Joints Kits CV Boots and Kits Cardan Shaft / Prop Shaft Transmission Parts Gearbox / Differential Oil Gearbox Sump / Oil Pan Rear Differential Sensors Transmission Cooling All Categories
-
-
Cooling & Heating
-
- Heating / Air Conditioning Air con condensers & desiccators Air con evaporators & expansion valves Air con pipes Air con belts Relays / Sensors / Resistors Compressors Heater flaps Blower Motors & Fans Heater blowers Heater hoses & pipes Vents / Grilles Climate Control Temperature Sensors / Switches
-
-
Electrical & Lighting
-
- Electrical & Relays Fuel Pumps Brake Light Switch Reverse Light Switch Headlamp Switch Window Switch Window Motors Window Mechanism Wiper Motor Wiper Mechanism Electric Horn Ignition Switch Seat Switch Indicator / Wiper Stalk Switch Roof / Sun Roof Switch Relays / Fuses Washer pumps / bottles / jets Alarms / Security / Central Locking Electronic Control Units Wiper Switches Dashboard / Console Parts & Switches Door Mirror Switch Tracker All Categories
-
-
Body & Exhaust
-
- Chassis / Bodywork Front Lid Damper Rear Lid Damper Bonnets / Locks & Latches Boots / Rear Lid / Locks and Latches Bumpers Front Bumpers Rear Door Handles | Locks | Keys Door Panels | Hinges | Striker Plates Window Lifters | Motors Wings Front & Parts Side Sill Panels Exterior Chassis Mouldings Mirrors & Parts Stone Chip Foils / Stickers Undertrays Chassis & Engine Front Wiper Arms & Blades Rear Wiper Arms & Blades Wheel Arch Liners & Covers Roof - Cabrio / Targa / Coupe / Speedster Plastic Covers Sound Proofing Front screen All Categories
-
-
Lubricants & Fluids
-
- Service Parts Service Kits OE Parts Oil Filters Air Filters Fuel Filters Belts All Types Spark Plugs IRIDIUM POWER Spark Plugs IRIDIUM RACING Spark Plugs Ignition Coils Front Wiper Arms & Blades Rear Wiper Arms & Blades Gearbox Service Parts Porsche Classic Motor oil Engine Oil & Lubricants - Mobil Engine Oil & Lubricants - Total Engine Oil & Lubricants - Castrol Engine Oil & Lubricants - Motul Engine Oil & Lubricants - Millers Oils NanoDrive Engine Oil & Lubricants - Millers Oils Fuel Additives Garage PPE
-
-
All Parts
-
- Parts Accessories Chassis / Bodywork Brakes Clothing & Gifts Electrical & Relays Engine Cooling Engine Electrical Engine Rebuild Parts Engine Tuning Exhausts Exterior Styling / Spoilers Gearbox / Transmission Heating / Air Conditioning Hydraulics Interior & Accessories Incar / Multimedia Lighting Mats & Carpets Motorsport and Off-Road Parts for Other Cars Pedal Cluster Rubber Seals All Categories
-
- Back to main website
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Headlamp Glass H4 Porsche 911 / 964 RHD ❭ 91163192701
- 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
- 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 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
Headlamp Lens H4 - Right Hand Drive (RHD)
Sold each
Restore the performance, appearance and safety of your
Porsche lighting system with H4 Right-Hand Drive (RHD) Headlamp Lens
91163192701, designed for Porsche 911 and Porsche 964 models. As the outer
protective component of the headlight assembly, the headlamp lens plays a
crucial role in directing light accurately onto the road while shielding the
bulb and reflector from moisture, dirt and road debris.
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
- 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 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
* Compatible with pre-1973 cars with H4 Headlamps, we also offer the original Bosch H1 Headlamp glass
The H4 lens features a specific optical pattern designed for right-hand drive vehicles, ensuring the correct beam distribution for UK and other RHD markets. A clear, undamaged headlamp lens is essential for maintaining optimum visibility, especially during night driving and poor weather conditions.
Over time, headlamp lenses can become scratched, chipped, cracked or cloudy due to age, UV exposure and road debris. Replacing a worn lens helps restore headlight performance, improve safety and maintain the original appearance of your Porsche.
What Does a Headlamp Lens Do?
The headlamp lens forms the front protective cover of the headlight assembly and helps control the distribution of light produced by the bulb and reflector.
A correctly functioning headlamp lens helps:
Focus and direct light accurately Improve night-time visibility Maximise headlight performance Protect bulbs and reflectors Prevent water and dirt ingress Maintain legal beam patterns Preserve original vehicle appearanceFor right-hand drive vehicles, the lens design ensures the beam pattern illuminates the road correctly without causing glare to oncoming traffic.
Symptoms of Headlamp Lens Wear or Failure
Headlamp lenses are constantly exposed to environmental conditions and road hazards, making them vulnerable to deterioration over time.
Common signs that a headlamp lens requires replacement include:
Cloudy or hazy lens surface Reduced headlight brightness Scratches or stone chips Cracks in the lens Moisture or condensation inside the headlamp Yellowing or discolouration Distorted beam pattern Poor night-time visibility MOT or roadworthiness concernsA damaged lens can significantly reduce lighting performance and compromise driving safety.
Why Headlamp Lens Replacement Matters
Replacing a worn or damaged headlamp lens helps restore both safety and appearance while protecting the internal components of the headlight assembly.
Benefits include:
- Improved light output
- Enhanced night-time visibility
- Correct beam pattern performance
- Better road safety
- Protection against moisture ingress
- Reduced risk of reflector damage
- Improved vehicle appearance
- Enhanced originality for restoration projects
For Porsche 911 and Porsche 964 owners, maintaining clear and effective headlamps is an important part of preserving both vehicle value and driving confidence.
Features & Benefits
- H4 specification
- Right-Hand Drive (RHD) beam pattern
- Restores headlight clarity and performance
- Improves visibility and road safety
- Protects internal headlamp components
- Ideal for restoration, maintenance and refurbishment projects
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91163192701
The product you are viewing cross references to these numbers
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
• relay location/code no.: XXIII
• relay location/code no.: XXIV

Fits:
Porsche 928 1991-95
This product supersedes Porsche's old part numbers:
- 92861810704
* Please check and match the part number of your relay in your car before ordering.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92861810764
The product you are viewing cross references to these numbers
- 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 927 1978-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 27
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92875006702
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- 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
Headlamp Motor Protective Cap Upper – 924 / 944 / 928
High-quality upper headlamp motor protective cap
designed for Porsche 924, 944, and 928 models.
Fits:
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- 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
Diagram ref no 28
This cap fits over the headlamp motor assembly, providing essential protection against dirt, moisture, and debris within the engine bay. It helps preserve the functionality and longevity of the pop-up headlight mechanism by shielding sensitive components from environmental exposure.
Manufactured to OEM specifications, this protective cap ensures correct fitment and durability, making it ideal for restoration, repair, or replacement of damaged or missing covers.
Key Features
• Upper protective cap for headlamp motor
• Suitable for Porsche 924, 944, and 928
• Designed for pop-up headlight systems
• Protects motor assembly from dirt and moisture
• OEM-style fit and specification
• Durable construction for long-term reliability
Function and Purpose
This protective cap plays an important role in the headlight system.
It helps to:
• Cover and protect the headlamp motor assembly
• Prevent dirt, dust, and moisture ingress
• Reduce risk of corrosion or mechanical wear
• Maintain reliable operation of pop-up headlights
• Extend the lifespan of motor components
Why Replace Protective Caps
Over time, protective covers can become damaged or degraded.
Common issues include:
• Cracked or brittle plastic
• Missing covers exposing components
• Dirt and moisture contamination
• Reduced protection of moving parts
Replacing worn caps ensures proper protection and system longevity.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477941387
The product you are viewing cross references to these numbers
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed