Standard Ignition PR4 fuel injection pressure regulator for the 1992-1993 GMC Typhoon V6 4.3L and other vehicles controls fuel pressure for consistent, precise fuel delivery. It is engineered around the fuel system needs of GM engines.
- Designed to keep fuel delivery consistent, which supports acceleration and throttle response
- Leak-proof seals and thermal resistance for use in all driving conditions
- Validated with 200+ hours of vibration testing, 1000+ hours of extreme heat and cold operational testing and on-vehicle testing
- Corrosion-resistant, wear-resistant construction that resists breaking and deforming
Quick facts
- Part: Standard Ignition PR4 fuel injection pressure regulator
- Fits: the 1992-1993 GMC Typhoon V6 4.3L and other vehicles
- Material: Steel
- Condition: New
Hard starting, rough running or a fuel smell can mean the regulator is worn, though a weak fuel pump or a clogged fuel filter can be behind them too, so find the cause before replacing it. Only one regulator is needed per vehicle.
Fits
The 1992-1993 GMC Typhoon V6 4.3L, the 1988-1991 Buick LeSabre V6 3.8L and the 1988-1991 Oldsmobile Delta 88 V6 3.8L are the first vehicles it fits, and it fits other Buick, Oldsmobile, GMC and Pontiac models too. If your car is not named here, find its year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Operating pressure: 44 psi
- Number of outlets: 2
- Inlet quantity: 2
- Nipple orientation: straight
Build and materials
- Material: steel
- Finish: silver
- Adjustable: no
- Condition: new
- Country of origin: Mexico
In the box
One fuel injection pressure regulator and one caution sheet.
Interchange: 2-1707A · 800-114
19236473 · 21707 · 25523720 · 25523780
This part cross-references / interchanges with the following part numbers:
19236473, 21707, 2-1707A, 25523720, 25523780, 800-114
Frequently Asked Questions
Will the Standard Ignition PR4 work on a 1992-1993 GMC Typhoon V6 4.3L?
Yes. The Standard Ignition PR4 fuel injection pressure regulator fits the 1992-1993 GMC Typhoon V6 4.3L. It also fits the 1988-1991 Buick LeSabre V6 3.8L and the 1988-1991 Oldsmobile Delta 88 V6 3.8L.
Is a Standard Ignition fuel injection pressure regulator adjustable?
No. The Standard Ignition PR4 regulator is not adjustable. Its operating pressure is 44 psi.
Does the PR4 regulator include a reference port?
No, the reference port is not included. The regulator comes with a caution sheet.
Can hard starting or rough running mean my fuel injection pressure regulator is failing?
They can be signs of a worn regulator, since it controls fuel pressure. A shop can test the fuel pressure to confirm.
How was the PR4 regulator tested?
The PR4 regulator's validation includes 200+ hours of vibration testing, 1000+ hours of extreme heat and cold operational testing and on-vehicle testing.
