Holley's Dominator in-line fuel pumps use a patent-pending twin-pump design that lets one pump handle cruising duty while both activate for nitrous or boost, avoiding the extra recirculating and heat buildup that comes with running one oversized pump full time. At 5.1 lbs, the 12-1200 is roughly half a pound lighter than competing 1000+ horsepower pumps while offering more capability.
Specifications:
- Free Flow: 130 GPH
- Naturally Aspirated HP: up to 1460 (Carb) / 1200 (EFI)
- Voltage: 12-18.5V
- Inlet/Outlet: 10 AN O-Ring
- Material: Aluminum, Black Anodized
- Fuel Type: Gasoline
- Max Current Draw: 20 Amps
- Dimensions: 7.66" L x 5" W x 2.5" T
- Weight: 5.1 lbs
- Product Type: Electric Fuel Pump
- Sub Category: Fuel Pumps and Related Components
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 12-1200
These pumps have no internal bypass, so a bypass-style regulator and return line are required. Not for use with methanol, E85, or diesel (see Holley's #12-1800 Dominator for E85/diesel applications). Requires a contoured, O-ring-sealed port fitting such as Earl's #AT985010ERL — a standard conical-seat union at the inlet or outlet will block flow and cause pump failure.
FAQ
What fuels can the 12-1200 run?
Pump gas or race gasoline — it is not designed for methanol, E85, or diesel (use Holley's #12-1800 for E85/diesel).
Does it need a bypass regulator?
Yes — these pumps have no internal bypass, so a bypass-style regulator and return line are required.
How much horsepower can it support?
Up to 1460 HP on carbureted applications or 1200 HP on EFI, depending on configuration.
What fitting should I use at the inlet/outlet?
A contoured, O-ring-sealed port fitting (such as Earl's #AT985010ERL) — standard conical-seat unions will block flow and cause pump failure.
What voltage range does it run on?
12 to 18.5 volts for street or race use.
