Tanks Inc. GPA-Series In-Tank Fuel Pump Modules (Standard & High-Flow)

Quiet, reliable fueling for EFI swaps and daily drivers—without fuel-starve. GPA modules drop into EFI-ready Tanks Inc. trays and deliver stable pressure up to 100 PSI with genuine Walbro/TI pumps, a heavy 10-gauge mounting plate, and 1/4" NPT feed/return ports. Choose the flow that matches your power today (and tomorrow).

✅ Made in USA
✅ Up to 100 PSI
✅ 1/4" NPT supply/return + barbed vent
✅ Includes in-tank harness & sock
✅ Works in ~6–11" tank depths (cut-to-fit)

Pick Your Flow & Control Type

Match LPH to horsepower, then mind PWM compatibility:

Variant (Series)	Flow	Best For	Power Guide*	PWM
GPA-TBI (Standard)	109 LPH	TBI / low-pressure EFI (~15–20 PSI)	≈250–300 hp	No (gerotor)
GPA-2 (Standard)	190 LPH	Mild EFI & NA builds	Up to ~450 hp	No (gerotor)
GPA-4 (Standard)	255 LPH	Most LS swaps @ 58–60 PSI	Up to ~630 hp	No (gerotor)
GPA-5 (High-Flow)	340 LPH	Higher-output NA/boosted	~700–800+ hp	Yes (DCSS turbine)
GPA-6 (High-Flow)	400 LPH	Big power / future-proof	800+ hp (setup-dependent)	Yes (DCSS turbine)
GPA-8 (High-Flow)	430 LPH	High boost / E85 headroom*	800+ hp (setup-dependent)	Yes (DCSS turbine)
GPA-9 (High-Flow “Hellcat”)	450 LPH	Max headroom builds	800+ hp (setup-dependent)	Yes (DCSS turbine)

*Power estimates assume gasoline at typical EFI pressure. Injector size, base pressure, voltage, and duty cycle affect real output.

Key Features

Heavy 10-gauge no-warp mounting plate with yellow-zinc finish
1/4" NPT supply & return, plus barbed vent on the plate
Up to 100 PSI capable with genuine Walbro/TI pumps
Includes in-tank wire harness, filter sock, insulator sleeve
Depth range: fits tanks up to ~11" deep; cut-to-fit for ~6" minimum
PWM compatibility: Standard gerotor (GPA-TBI/2/4) = no; High-flow DCSS turbine (GPA-5/6/8/9) = yes

What’s Included

GPA module with selected pump
In-tank harness, sock, insulator
Note: Mounting gasket & screws ship with Tanks Inc. tanks (not with pumps)

Compatibility & Install Notes

Designed for Tanks Inc. EFI-ready tanks with internal trays (baffled reservoir). Tray keeps the pickup covered under accel/cornering.
Plumbing: adapt 1/4" NPT ports to AN with AN adapter fittings.
Standard GPA (gerotor) pumps are not PWM-compatible. Disable PWM on controllers like FiTech.
High-Flow GPA (DCSS turbine) pumps can be PWM-controlled.

Pair It With

PTFE Hose & Fittings Bundles (feed/return)
≤10 μm EFI Fuel Filter (pressure side)
LS Swap Fuel Line Kits
Install Tool Bundle

FAQs

Which GPA module should I pick?

Most LS swaps at 58–60 PSI run GPA-4 (255 LPH). Bigger power or boost? Step to GPA-5/6. Low-pressure TBI? Use GPA-TBI.

Are GPA pumps PWM compatible?

Standard gerotor (GPA-TBI/2/4) = no. High-flow DCSS turbine (GPA-5/6/8/9) = yes. If your ECU/controller supports PWM, only use it with high-flow variants.

Will this fit my tank?

Works with Tanks Inc. EFI-ready tanks that include the internal tray. As-shipped they suit tanks up to ~11" deep; you can shorten to ~6" minimum depth during install.