Description: The Holley In-tank RetroFit Fuel Modules are now available with a 525 LPH Pump. Convert your factory tank or fuel cell to an in-tank EFI fuel system quickly and easily! And- add the benefits of a Holley Hydramat in the process! The conversion is easily accomplished with basic tools and requires no welding or fabrication. The billet aluminum module design includes a billet pump hanger bracket to control pump vibration while also providing a low profile design to fit where space is at a premium. Holley's innovative clamping system and integrated fuel pump makes it easy. Supports up to 1200 EFI or 1450 Carb HP (@ 60 PSI at 13.5 Volts / 16.9 AMP Draw) Of course there are many variables, estimates are based on gasoline Holley 12-135 In-Tank Retrofit Fuel Module, 525 LPH, Returnless Sku # 42512135 Mfr. Part # 12-135 Condition New Brand Holley Sold Each Details Info The Holley In-tank RetroFit Fuel Modules are now available with a 525 LPH Pump. Convert your factory tank or fuel cell to an in-tank EFI fuel system quickly and easily! And- add the benefits of a Holley Hydramat in the process! The conversion is easily accomplished with basic tools and requires no welding or fabrication. The billet aluminum module design includes a billet pump hanger bracket to control pump vibration while also providing a low profile design to fit where space is at a premium. Holley's innovative clamping system and integrated fuel pump makes it easy. Supports up to 1200 EFI or 1450 Carb HP (@ 60 PSI at 13.5 Volts / 16.9 AMP Draw) Of course there are many variables, estimates are based on gasoline. Individual systems will vary based on fuel system design, regulator type, fuel cell location, etc... Features: Retrofit Fuel Module 525 LPH-Returnless Style Compatible for returnless style systems - no return to tank fuel line application Installs in any fuel tank from 7.5" to 12" deep to fit a wide variety of applications The low profile design is only 1.275" thick above the tank mounting surface for added clearance when needed The innovative clamping system allows you to locate the module anywhere in the tank beside your existing sending unit The clamping system allows you to rotate the unit 360 degrees for easier clocking of the plumbing and wiring locations under your ride Includes innovative Holley Hydramat to ensure consistent fuel supply. The 3" x 15" HydraMat mounting flange has 6 clocking pin locations to allow for 360 degree adjustment to clear sending unit levels or any tank floor restrictions that you might encoun Black anodized aluminum construction for corrosion resistance and long lasting good looks ¼" NPT ports for a wide variety of plumbing options Optional roll over valve available Charts (PDF) Installation Tips It is recommended to use a along with a minimum size of 12 Gauge wire for your installation.*** Maximum 6AN line and fitting size due to space limitations between unit and fuel tank. This item is being shipped to you directly from the manufacturer and is subject to an increased handling time. Delivery estimates that include the handling time are displayed on the "Shipping and Payments" tab. Specs Sold in Quantity Each Material Type Billet Aluminum Fuel Filter Included No Clamps Included Yes Fuel Line Included No Fuel Pressure Regulator Included No Sending Unit Included No Voltage 12 Fuel System Type EFI | Carb Fuel Type Gasoline | E85 Maximum Pressure 60 Electric Fuel Pump Type In Tank Electric Fuel Pump Outlet Fitting(s) 1/4" NPT Female Inline No Overall Diameter 4.8 Free Flow Rate 139 GPH / 525 LPH Horsepower Rating (Naturally Aspirated) 1450 HP MFG. Part # 12-135 Application Returnless-style system GTIN Code 090127069929 Tech Support We're here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through eBay Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 73 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
Price: 855.95 USD
Location: Bowling Green, Kentucky
End Time: 2025-01-25T13:20:01.000Z
Shipping Cost: 0 USD
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Item Specifics
Return shipping will be paid by: Buyer
Returns Accepted: Returns Accepted
Item must be returned within: 60 Days
Refund will be given as: Money Back
Return policy details:
Type: Electric Fuel Pumps
Voltage: 12 volts
Universal Fitment: Yes
California Prop 65 Warning: True
Manufacturer Part Number: 121-35
Material: Aluminum
Brand: Holley