Filters
Fuel pressure regulator
30777576
Fuel pressure regulator – 30777576
€5.00
55202754
Fuel pressure regulator – 55202754
€6.59
31216313
Fuel pressure regulator – 31216313
€7.00
55207253
Fuel pressure regulator – 55207253
€7.35
037133035C
Fuel pressure regulator – 037133035C
€7.50
5Q0201559A
Fuel pressure regulator – 5Q0201559A
€7.90
5QF201549A
Fuel pressure regulator – 5QF201549A
€8.00
30750409
Fuel pressure regulator – 30750409
€8.06
795300
Fuel pressure regulator – 795300
€9.00
3145027XXX
Fuel pressure regulator – 3145027XXX
€9.68
195300
Fuel pressure regulator – 195300
€10.00
31216662
Fuel pressure regulator – 31216662
€10.00
7188553
Fuel pressure regulator – 7188553
€10.98
026127177B
Fuel pressure regulator – 026127177B
€11.99
73369A
Fuel pressure regulator – 73369A
€13.92
90411542
Fuel pressure regulator – 90411542
€14.12
7805733
Fuel pressure regulator – 7805733
€15.00
928400651
Fuel pressure regulator – 928400651
€15.00
281002481
Fuel pressure regulator – 281002481
€15.63
9307Z530A
Fuel pressure regulator – 9307Z530A
€17.00
What does a fuel pressure regulator do?
A fuel pressure regulator is a device that maintains the correct fuel pressure for the injectors in a vehicle's engine, ensuring optimal performance and efficiency. It adjusts the fuel flow based on the engine's demands, preventing issues like misfiring or poor fuel efficiency.On most petrol cars it sits on the fuel rail or inside the fuel pump module in the fuel tank, using a spring-loaded diaphragm or electronic control to bleed excess fuel back to the tank. A diesel fuel pressure regulator does the same job at far higher pressures, usually mounted on the high-pressure pump or common rail. Wherever it sits, the engine's fuelling accuracy depends on it holding pressure within a narrow band.
What are the symptoms of a faulty fuel pressure regulator?
A regulator fails in one of two directions: stuck open, starving the injectors of pressure, or stuck closed, flooding them with too much. Either way the engine runs badly, and a leaking diaphragm can pull raw fuel into the vacuum line and onwards into the intake, which is both a misfire and a fire risk. The usual giveaways:
- Misfires and rough idle: Wrong rail pressure unbalances the mixture across cylinders.
- Black smoke from the exhaust: Over-pressure pushes the engine rich.
- Hard starting: Low residual pressure means long cranking, especially when warm.
- Fuel in the vacuum hose: A ruptured diaphragm's signature; pull the hose and check.
- Poor fuel economy: Rich running burns through a tank noticeably faster.
- Fuel smell or visible leaks: Around the rail, regulator body, or its ports.
- Power loss under load: Pressure that can't keep up with demand flattens acceleration.
How to pick the right fuel pressure regulator for your car?
Operating pressure is the figure that matters most: petrol port-injection systems, direct-injection systems, and diesel common rails all run wildly different pressures, and a regulator rated for the wrong band will never fuel the engine correctly.From there it's the OEM number, the mounting style (rail-mounted, inline, or built into the pump module), and whether your car runs a return or returnless fuel system, since the two use different regulator designs entirely.Dial in your make and model on Parthunt24 to cut the results down to regulators that match. The listing you pick carries on to the marketplace it lives on, where the seller's description and checkout are waiting.
- Vehicle compatibility: Match the make, model, year, engine code, and OEM part number.
- Petrol vs diesel compatibility: Fuel pressure systems differ significantly.
- Fuel pressure rating: Verify the required operating pressure.
- Fuel rail compatibility: Regulators are often specific to certain fuel rails.
- Vacuum-controlled vs electronic regulation: Different fuel systems use different regulator designs.
- Connector and hose fittings: Check the fuel line and vacuum connection types.
- Return vs returnless fuel system: Verify compatibility with the vehicle’s fuel delivery setup.
- Mounting type: Check whether it is rail-mounted, inline, or integrated into the fuel pump module.
- Turbocharged engine compatibility: Turbo engines may require different pressure characteristics.
- OEM vs aftermarket specification: Incorrect pressure regulation can affect fuelling and performance.
- Condition: Inspect for leaks, corrosion, damaged diaphragms, or contaminated ports.
What to check before buying a fuel pressure regulator
A regulator is a small, sealed part whose health can't be judged by eye, which makes the written half of the listing the important half. A diaphragm can be split and a spring tired with nothing visible from outside, so what the seller says about the donor and testing carries the purchase.
- Photos: Shots of the body, ports, vacuum nipple, and any O-rings.
- Seller reputation: Marketplace standing, ratings, and past buyer remarks.
- Compatibility: OEM number and pressure rating verified for your engine.
- Included components: Regulator alone, or with O-rings, clips, and fittings?
- Condition: Fuel staining, corrosion at the ports, perished seals.
- Testing: Confirmation it held correct pressure before removal.
- Warranty and returns: A stated route back if the regulator turns out to leak or read wrong.
- Shipping: Capped ports and snug packing to keep contamination out.
- Documentation: Where the part came from and who removed it.
How much does a fuel pressure regulator cost?
Fuel pressure regulator price climbs with the system pressure it has to control. Used vacuum-operated petrol regulators begin near €8-€25, electronic and returnless-system units hold the €30-€80 bracket, and high-pressure diesel regulators or pump-integrated units clear €130.A used fuel pressure regulator shows up on Parthunt24 from as low as 5.00. What decides where a fuel pressure regulator price lands:
- System: Vacuum petrol units stay cheapest; diesel high-pressure regulators top the range.
- Control type: Electronic regulators cost more than mechanical diaphragm designs.
- Brand: OEM and Bosch fuel pressure regulator units hold the strongest value.
- Engine rarity: Regulators for common engines stay cheap; rare codes climb.
- Inclusions: Fresh O-rings, clips, and fittings nudge the price up.
Fuel pressure regulator failed? Inspect these surrounding parts too
The culprit behind a dead regulator, usually contaminated fuel or plain age, has been circulating through the rest of the fuel system too. Debris that wrecked one pressure component is already sitting in the next one downstream, so give the neighbouring parts a once-over before the rebuild. Browse these on Parthunt24:
- Pressure sensor: Misreporting sensors get regulators replaced for nothing; test it first.
- Fuel injector: Wrong rail pressure fouls or starves injectors over time.
- Fuel distributor: Older injection systems wear here alongside the regulator.
- Fuel injector supply pipe: Hairline cracks leak under pressure once disturbed.
- High pressure fuel injection pump: The regulator's failure can be this pump's symptom.
- Fuel filter: A clogged filter mimics a weak regulator; cheap to rule out.
- Fuel pump: Tired pumps can't build the pressure the regulator is blamed for losing.
Finding a fuel pressure regulator is easy with Parthunt24
Pressure ratings, fitting types, and return-system quirks make this an easy part to buy wrong, and checking each marketplace separately multiplies the chances. Parthunt24 lays the major used-parts platforms out as one set of results, showing rating, condition, and asking price for every regulator, including Bosch units and other OEM-grade parts from mainstream hatchbacks to performance engines.The comparison work is easily done before you even have to leave the results page. Compare prices, find the best deal, and buy a fuel pressure regulator for your car today on Parthunt24.