Keep fuel pressure steady and your injectors properly fed with the Standard Ignition Fuel Injection Pressure Regulator PR433, a direct-fit replacement for the 2003-2006 Mitsubishi Lancer [L4-2.0L]. It's built to match the fuel-system requirements of the listed Mitsubishi engine.
- Precise fuel control: maintains consistent fuel pressure to the injectors, helping support smooth operation and steady throttle response.
- 45 psi operating pressure with an angled nipple matched to the listed application's fuel system.
- Leak-resistant seals and thermal resistance designed for safe function across varied driving conditions.
- Validated build: engineering validation includes 200+ hours of vibration testing, 1000+ hours of extreme heat and cold operation, and on-vehicle testing.
A fuel injection pressure regulator maintains the correct pressure across the fuel injectors so the engine receives the fuel it needs. Signs the regulator may need replacing include hard starting, rough idle, a strong fuel odor, or poor fuel economy — diagnose the cause first, and if a failed regulator is the cause, this PR433 replaces it. Constructed from corrosion-resistant, durable materials and includes a caution sheet. Country of origin: Japan. Manufacturer part number PR433.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicle does the PR433 fit?
It's a direct-fit replacement for the 2003-2006 Mitsubishi Lancer with the L4-2.0L engine. Check the Buyer's Guide tab to confirm fitment for your vehicle.
What does a fuel pressure regulator do?
It maintains the correct fuel pressure across the injectors so the engine receives a consistent fuel supply during operation.
What is the operating pressure?
The PR433 is rated at 45 psi and has an angled nipple orientation, matched to the listed application's fuel system.
What are signs this regulator may need replacing?
Hard starting, rough idle, a strong fuel odor, or poor fuel economy can be signs. Diagnose the cause first, since these symptoms can have other sources.
Where is the PR433 made and what's included?
Its country of origin is Japan, and it ships with a caution sheet. The manufacturer part number is PR433.
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