Holley . 12-879
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| Seller | SKU | MOQ | In stock | Multiple | Prices |
|---|---|---|---|---|---|
| Summit Racing | HLY-12-879 | 1 | 1 | ||
| JC Whitney | H1912879 | 1 | -2 | 1 | 1 @ $140.95 |
| Auto Parts Warehouse | H1912879 | 1 | -2 | 1 | 1 @ $132.95 |
| Jegs | 510-12-879 | 1 | 4 | 1 | 1 @ $179.95 |
![]() Zoro | G3625182 | 1 | 1 | 1 @ $184.49 | |
| HLY12-879 | 1 | 1 | |||
| 42512879 | 1 | -2 | 1 | 1 @ $173.95 | |
![]() vividracing.com | 152727145 | 1 | -2 | 1 | 1 @ $179.95 |
| 12-879 | 1 | 1 | 1 @ $179.95 | ||
| 12-879KIT | 1 | 1 | 1 @ $189.95 | ||
| 001509061 | 1 | 1 | 1 | 1 @ $188.83 | |
![]() automotivestuff.com | HOLLEY-12-879 | 1 | -2 | 1 | 1 @ $179.95 |
![]() autopartso.com | 3574972 | 1 | -2 | 1 | 1 @ $187.00 |
![]() Pit Stop USA | HLY12-879 | 1 | -2 | 1 | |
| torqued.io | HOL-212-879 | 1 | 1 | 1 @ $173.95 |
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Holley Billet Bypass Regulator, 4-65 Psi (3/8 Npt)
Brand: Holley
Details
- Adjustable from 4.5-9 psi for precise fuel pressure adjustments
- Constructed of billet aluminum with a black anodized base and clear anodize top for good looks
- Used in systems where a return line is not needed
- Includes fitting for manifold reference
- Includes an 1/8 NPT gauge port
Listing
| Binding | Automotive |
|---|---|
| Product group | Automotive Parts and Accessories |
| Product type | AUTO_PART |
| Model | 12-879 |
| Part number | 12-879 |
| Items per pack | 1 |
| Label | Holley |
| Manufacturer | Holley |
Holley 12-879 Adjustable Billet by-Pass Regulator Kit 3/8 in. NPT
Brand: Holley
Adjustable billet by-pass return style fuel pressure regulator 3/8 NPT Kit with Fuel Pressure Gauge and Adapter Fittings Boost Reference - 1:1; Holley Billet Fuel Pressure Regulators are part of a complete line of fuel system products from Holley. They are precision machined from 6061-T6 billet aluminum for strength and durability. These regulators are adjustable from 4-65 psi and will handle both carbureted and EFI applications. A second pressure spring is included allowing you to increase the fuel pressure range up to 65 psi for EFI systems. They have 3/8 NPT port sizes to adapt to your new or existing fuel lines. So, if you are currently running a carbureted system but plan to upgrade to EFI in the future, these regulators will have you covered either way. This kit includes a 0-100 liquid filled fuel pressure gauge, mounting bracket, and -6 AN to 3/8 in NPT adapter fitting to get you started on your installation.;
Details
- Adjustable from 4-65 psi for precise fuel pressure adjustments - 4-15 psi spring installed, optional spring for up to 65 psi included for EFI applications
- 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 in. NPT Inlet; (1) 3/8 in. NPT Outlet; and (1) 3/8 in. NPT Return Port
- Includes fitting for manifold boost reference which it compensates for at a 1:1 ratio
Listing
| Product group | Automotive Parts and Accessories |
|---|---|
| Product type | AUTO_PART |
| Part number | 12-879 |
| Items per pack | 1 |
| Label | Holley |
| Manufacturer | Holley |




