My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Holley EFI 534-37 Dual Tank Fuel Pump Switching Kit

Manufacturer

Picture for manufacturer Holley EFI

Part Number

534-37
9 reviews
Sale Price

$675.95

3 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Holley EFI 534-37 Dual Tank Fuel Pump Kit is engineered for vehicles with dual fuel tank configurations running Holley fuel injection systems. This comprehensive switching kit supports fuel systems up to 400 horsepower, making it ideal for street performance and daily driver applications.

Key Features:

  • Complete switching solution for dual tank fuel delivery systems
  • Supports fuel systems up to 400 HP
  • Originally designed for 2-barrel Pro-Jection throttle body systems
  • Compatible with Holley MPI (Multi-Port Injection), TBI (Throttle Body Injection), and Terminator EFI systems
  • Includes electronic switching valve for automatic tank selection
  • Complete with relay, dash-mounted switch, and pre-wired harness
  • Eliminates fuel starvation issues in dual tank applications

This kit provides everything needed to integrate dual fuel tanks with modern Holley EFI systems. The included switching valve automatically manages fuel delivery from both tanks, while the dash switch allows manual tank selection. The plug-and-play harness and relay simplify installation, making the conversion to EFI straightforward even in classic trucks and vehicles originally equipped with dual tanks.

Products specifications

Brand

Holley EFI

Category

Fuel Pumps and Accessories

Emission Code

5

Fuel Delivery Type

Fuel Injection

Fuel Sending Unit Included

No

Fuel Type

Gasoline

Gasket Or Seal Included

No

Grade Type

Performance

Inlet Type

Barb

Internal Or External

External

Mounting Bracket Included

Yes

Mounting Hardware Included

No

Negative Ground

Yes

Outlet Type

Barb

Product Type

Dual Tank

Regulator Included

No

Seal And Lock Ring Included

No

Strainer Included

Yes

Universal Or Specific Fit

Specific

Warning

California Proposition 65

Warranty

Manufacturer's Limited 90 Day Warranty

Wiring Harness Included

Yes

I searched online for my product, found it and the best price at thmotorsports.com, ordered it, and received it as promised, in perfect condition as advertised. I'm a satisfied customer. Guess they have a sister company: autoplicity.com. I'm shoppin' them too.

Easy navigation

Overall experience was good until we had to return the item because it wouldn't work with the seat we had. Problem is that when we tred to get the specs on the item you didn't have any of the measurements available. So I was told that if it didn't work I could retun it. When I did you said it was because I ordered wrong so I would be charged to return it. It was wrong because you didn't have any info on the actual size and the only way to see if it would work was to order it.

Blah

v

Easy and streamlined process

Had everything I needed

Great price and quick shipping!

Good pricing and fast shipping, good place to do your boat shopping.

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy