do not press the back button…
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.
- Accessories
- Brakes
- Chassis / Bodywork
- Clothing & Gifts
- Electrical & Relays
- Engine Cooling
- Engine Electrical
- Engine Rebuild Parts
- Engine Tuning
- Exhausts
- Exterior Styling / Spoilers
- Gearbox / Transmission
- Heating / Air Conditioning
- Hydraulics
- Incar / Multimedia
- Interior & Accessories
- Lighting
- Mats & Carpets
- Motorsport and Off-Road
- Parts for Other Cars
- Pedal Cluster
- Rubber Seals
- Seats & Seat Belts
- Service Parts
- Special Offer Parts
- Steering Parts
- Suspension & Axle
- Suspension Upgrades
- Tyres
- Wheel Accessories
- Wheels
Oil Pressure Relief Valve
Fits:
Porsche 356B / 356C
Porsche 912
Porsche 911 65-77
Porsche 914
Diagram ref no 54
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99906401002
The product you are viewing cross references to these numbers
- 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 1975-1977 3.0L Turbo (930)
- Porsche 356B 1959-63
- Porsche 356C 1963-65
- Porsche 914 (1970-1976)
Shop Securely
12 Month Warranty
Worldwide Delivery
This kit comes with the correct Spring pressure and with the correct size piston. CNC machined and zinc plated
Fits:
Porsche 356A / 356B / 356C
Porsche 912
Diagram ref no 14, 15, 16 and 17.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99906401002S
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Shop Securely
12 Month Warranty
Worldwide Delivery
An oil pressure relief valve is a critical engine component designed to regulate and maintain optimal oil pressure within your vehicle’s lubrication system. By controlling excess oil pressure and redirecting flow when necessary, this valve helps prevent engine damage, reduces wear on internal components, and ensures consistent lubrication under all driving conditions.
At Design911, we supply a comprehensive range of high-quality oil pressure relief valves engineered for performance, durability, and precise pressure control. Suitable for a wide range of vehicles, including performance and Porsche applications, these valves are essential for maintaining engine reliability, especially under high load, high RPM, or track driving conditions.
Whether you're replacing a worn valve, upgrading for improved oil system efficiency, or maintaining your engine for long-term reliability, our range includes OEM and performance-grade oil pressure relief valves designed to meet or exceed manufacturer specifications.
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed