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#42512879
Holley 12-879 Fuel Pressure Regulator 4-65 PSI 3/8 Inch NPT
- The 4-15 psi carbureted spring comes installed in the regulator
- Includes fitting for manifold reference and an 1/8 NPT gauge port
- Designed to be used in systems with a return line back to the tank
$207.95
/each
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$224.95
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Product Summary
Universal Fit, 4-65 Fuel Pressure Rating (psi)
- The 4-15 psi carbureted spring comes installed in the regulator
- Includes fitting for manifold reference and an 1/8 NPT gauge port
- Designed to be used in systems with a return line back to the tank
- It is adjustable from 4-65 psi for precise fuel pressure adjustments
- Constructed of billet aluminum with a black anodized base and a clear anodized top for good looks
Key Specs
| MFG. Part # | 12-879 |
| Brand | Holley |
| Regulator Style | Bypass Return Style |
| Material Type | Billet Aluminum |
Need To Know
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Holley 12-879 Details
Holley Billet Fuel Pressure Regulators are just part of the complete line of fuel system products that Holley offers. This regulator is constructed from 6061-T6 billet aluminum for strength and durability. Adjustable from 4-65 psi and will handle both carbureted and EFI applications. So, if you are currently running a carbureted system but plan to upgrade to EFI in the future, this regulator will have you covered either way.
Features:
- Adjustable from 4-65 psi for precise fuel pressure adjustments
- Constructed of billet aluminum with a black anodized base and a clear anodized top for good looks
- Used in systems with a return line back to the tank
- (1) 3/8” NPT Inlet; (1) 3/8” NPT Outlet; and (1) 3/8” NPT Return Port
- Includes fitting for manifold reference
- Includes an 1/8 NPT gauge port
- Boost Reference - 1:1
Features
- Adjustable from 4-65 psi for precise fuel pressure adjustments
- Constructed of billet aluminum with a black anodized base and a clear anodized top for good looks
- Used in systems with a return line back to the tank
- (1) 3/8” NPT Inlet; (1) 3/8” NPT Outlet; and (1) 3/8” NPT Return Port
- Includes fitting for manifold reference
- Includes an 1/8 NPT gauge port
- Boost Reference - 1:1
- The 4-15 psi carbureted spring comes installed in the regulator
Charts
Guides & Documents
Holley 12-879 Specifications
Holley 12-879 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 12-879 |
| Brand | Holley |
| Regulator Style | Bypass Return Style |
| Material Type | Billet Aluminum |
| GENERAL | |
| Fuel Pressure Rating (psi) | 4-65 |
| Sold in Quantity | Each |
| GTIN Code | 090127734971 |
Ratings & Reviews
4.5
2 Reviews
Customers highly recommend our fuel regulator for its undeniable quality and practicality. Specially highlighted is its superior performance in high-demand environments, like drag racing, which sets it apart from competitors. Users noted its easy installation process and the remarkable difference it made in their vehicles, demonstrating the product's excellent usability. There are ongoing recommendations due to its top-notch material quality that ensures safety and performance, evidenced in classic cars like a 1990 Mustang 5.0. Overall, the product is perceived as a reliable choice for enhancing vehicle performance.
Ratings & Reviews
4.5
2 Reviews
Customers highly recommend our fuel regulator for its undeniable quality and practicality. Specially highlighted is its superior performance in high-demand environments, like drag racing, which sets it apart from competitors. Users noted its easy installation process and the remarkable difference it made in their vehicles, demonstrating the product's excellent usability. There are ongoing recommendations due to its top-notch material quality that ensures safety and performance, evidenced in classic cars like a 1990 Mustang 5.0. Overall, the product is perceived as a reliable choice for enhancing vehicle performance.
4.5
2 reviews
5
1
4
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Filter by Ratings
Have not installed yet
4.0
a year ago
Dmp
Clinton Md.
Verified
Needed a fuel regulator and this was recommended
Would Recommend
I would buy this product again
5.0
3 years ago
Doug
Iowa
Verified
I installed this in my 1990 mustang 5.0 drag racing car.
Would Recommend
Showing 2 of 2 reviews

