SKU: 51433221343

Holley In-Tank RetroFit Fuel Module 525 LPH Return Style - 12-134

Sale price$479.68 Regular price$532.98
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Description

Holley In-Tank RetroFit Fuel Module 525 LPH Return Style - 12-134Overview: 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

Overview:

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- Return Style
  • 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

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Application Universal
Brand Holley
Diameter 4.8"
Emission Code 3
Free Flow LPH 525
Fuel Type E85
Fuel Type Gasoline
Material Billet Aluminum
NPT Thread 1/4 NPT
Product Type Fuel Pump Module
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51433221343

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4.1 ★★★★★
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pac
Charlottesville, US
★★★★★ 5
Worth its weight in gold
Color: Ocean Blue, Style: Everyday 3 Season 50-80° F
Great, left the wind & cold out. Kept me warm with 17* wind chill! Durable. Couldn’t have asked for better warmth made sitting @ watching a soccer game doable. It’s literally lite weight, has a convenient of a carrying bag.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
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Verified Purchase
Chantal
Waukegan, US
★★★★★ 5
Great sleeping bag
Color: Ocean Blue, Style: Everyday 3 Season 50-80° F
Great size for my 10 year old son. Nice and long. The material is soft and warm. The zipper zips fast. There is like a hoodie on the top to go over your head to keep you warm.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
I
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Irina Korsakova
Houston, US
★★★★★ 4
Great for school trips and camping
Color: Sunburst Orange, Style: Everyday 3 Season 50-80° F, Color: Sunburst Orange, Style: Everyday 3 Season 50-80° F
My daughter went on a school camp trip and needed a sleeping bag, so I decided to get this one. I chose the adult size instead of the kids’ version so we can use it in the future too. It turned out to be a great choice — it’s roomy and comfortable, and even I fit inside easily. The material feels soft and pleasant to the touch, and the zipper works smoothly without getting stuck. It keeps you warm at night but doesn’t feel too hot, which is perfect for cool-weather camping. I did notice that along the edges there’s a section without insulation for quite a bit of distance — not a big issue, but something to be aware of. I tried to show this part in my video. The color is bright and cheerful, exactly as shown in the pictures. Overall, I’m very happy with this purchase — it’s lightweight, cozy, and easy to use. The only challenge is rolling it up and fitting it back into the carrying bag. Even for me, it took some effort since the sleeping bag is quite bulky. The material seems sturdy and well-made, but we’ve only used it once, so time will tell about its durability. Maybe the manufacturer could improve that part in the future. Still, it’s a great option for school trips, camping, and sleepovers.
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Reviewed in the United States on November 5, 2025
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Romona
San Leandro, US
★★★★★ 5
Warm, comfortable, and great value for the price
Color: Ocean Blue, Style: Everyday 3 Season 50-80° F
I bought this sleeping bag for my son on a recent camping trip, and it performed surprisingly well. It warms up quickly once you’re inside, and the material feels soft and comfortable against the skin. The zipper runs smoothly and doesn’t get stuck easily, which is a big plus. It’s lightweight and packs down small, so it’s easy to carry and doesn’t take much space in his backpack. However, It’s not warm enough for very cold nights below the temperature rating, so if you’re camping in winter, you may need an extra blanket or liner. Overall, for the price, this sleeping bag is an excellent buy—comfortable, warm, and very practical. I would like to give five stars.
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Reviewed in the United States on January 21, 2026
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Amazon Customer
Omaha, US
★★★★★ 5
Easy travel sleeping bag!
Color: Ocean Blue, Style: Everyday 3 Season 50-80° F
Bought this for my son for his 5th grade camp, it was perfect, light enough for him to handle and warm enough at night!
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Reviewed in the United States on May 4, 2026

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