SKU: 12691781502

Holley 450 LPH Pump Module - Return Style - 12-325

Sale price$274.93 Regular price$305.48
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Description

Holley 450 LPH Pump Module - Return Style - 12-325Overview: Update the fuel system in your Dodge truck with a high performance in tank EFI fuel pump module. These fuel modules fit inside the factory tank & feature a billet aluminum flange, Hydramat, fuel sending unit, and high performance pump. Choose from 255 or 450 LPH (liters per hour) fuel flow & return style or returnless design. The amazing HydraMat is Holley's patent pending design that solves the problems associated with traditional fuel pick

Overview:

Update the fuel system in your Dodge truck with a high performance in-tank EFI fuel pump module. These fuel modules fit inside the factory tank & feature a billet aluminum flange, Hydramat®, fuel sending unit, and high performance pump. Choose from 255 or 450 LPH (liters per hour) fuel flow & return style or returnless design. The amazing HydraMat® is Holley's patent pending design that solves the problems associated with traditional fuel pick-ups in stock fuel tanks as well as racing fuel cells. During hard cornering, acceleration, stopping, inclines, and low fuel conditions fuel runs away from the fuel pick up which introduces air into the system resulting in poor engine performance and even stalling. HydraMat is the solution! Direct Fit in the following Vehicles: 1997-2004 Dodge Dakota (2WD & 4WD) 1998 Dodge B1500/B2500/B3500 (Full Size Vans) 1999-2003 Dodge Ram 1500 Van/Ram 2500 Van/Ram 3500 Van (Full Size Vans) 1998-2003 Dodge Ram 1500/Ram 2500/Ram 3500 (2WD & 4WD Full Size Pickups) 1999-2001 Dodge Ramcharger (2WD & 4WD - Mexico Only) 1998-2003 Dodge Durango (2WD & 4WD)

Features:

  • High Performance In-Tank EFI Fuel Pump Modules for 1991-2004 Dodge Trucks
  • Billet Aluminum Flange, Clamp & Fuel Level Sender
  • Black Anodized Finish
  • Choose from 255 or 450 LPH (liters per hour) Pump
  • Adjustable for Tank Depth
  • Choose from Return Style or Returnless Fuel Module
  • Provisions for EVAP (Evaporative Emission Control System) – See the Installation Notes
  • Inlets & Outlet Ports: -8 AN O-Ring Boss
  • New Fuel Level Sender Included
  • Optional Fill Vent Built Into Billet Aluminum Top – See the Installation Notes
  • Includes Hydramat® - 3” x 15”
  • Fits in Stock Factory Fuel Tanks
  • Ideal for Use In Gen III Hemi Engine Swaps

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Amp Draw 22
Application 1998-2004 Dodge Trucks
Brand Holley
Emission Code 5
Forced Induction HP@43PSI 850
Forced Induction HP@60PSI 750
Forced Induction HP@8PSI 900
Free Flow GPH 139
Free Flow LPH 450
Fuel Sending Unit Ohms 220-20 Ohms
Fuel System EFI
Fuel Type E85
Fuel Type Gasoline
GPH@43PSI 113
GPH@60PSI 100
GPH@8PSI 120
Inlet Size 8 AN
Material Billet Aluminum and Steel
Naturally Aspirated HP@43PSI 1100
Naturally Aspirated HP@60PSI 1000
Naturally Aspirated HP@8PSI 1200
Outlet Size 8 AN
Product Type Fuel Pump Module
Pump Body Color Silver
Returnless No
Warning California Propsition 65
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: 12691781502

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4.7 ★★★★★
Based on 9 reviews
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m0sfet
Port Orchard, US
★★★★★ 5
If you own a diesel engine, use this.
Size: 128 fl. oz, 1 Pack
For diesel owners looking to protect their fuel system, Hot Shot's Secret Everyday Diesel Treatment (EDT) is a heavy hitter in the world of additives. This 1-gallon jug is designed for the long haul, treating up to 1,280 gallons of fuel, which makes it incredibly cost-effective for daily drivers and fleet owners alike. The primary draw here is the 7-point cetane boost, which noticeably smooths out rough idles and improves cold starts. Beyond performance, it serves as a critical insurance policy against modern "dry" Ultra-Low Sulfur Diesel (ULSD) by adding essential lubricity to the fuel pump and injectors. It also features a demulsifier to help separate water from the fuel, preventing corrosion before it starts. While the 1-gallon bottle is bulky and requires a smaller dispenser for easy pouring at the pump, the peace of mind and improved MPG make it a staple for maintaining a healthy engine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
J
Verified Purchase
Jennifer Mazariegos
Louisville, US
★★★★★ 4
Great product
Size: 1 Count (Pack of 1)
I use it at every fill up. Works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
D
Verified Purchase
Donna Garrett
Dallas, US
★★★★★ 5
TDI Seems To Like This Stuff. A Must For US D2 Fuel.
Size: 1 Count (Pack of 1)
After purchasing our 2012 VW TDI diesel at 140K miles I started researching best practices to keep these little engines happy. What I read was that the US has some of the crappiest quality D2 diesel on the world stage. Even Canada's diesel is higher cetane and lubricity rated than the States not to even mention Europe which has WAY higher standards than us. The weak point of these TDI engines seems to be the high pressure fuel pump (HPFP) that is crank driven to enormous pressure for the injectors to to their thing. If these HPFP parts fail on common rail engines they can literally grenade and throw shards of metal everywhere within the downstream fuel system ensuring a VERY expensive repair if not destroying the engine altogether. The lubricating property of the fuel plays an important part in keeping these pumps working properly. There even seems to be some data supporting Canadian operated TDIs have fewer failure rates of the HPFP than stateside fueled vehicles although nothing had been officially published to my knowledge. Sulpher in the diesel had beneficial lubricating properties but was bad for the environment and subsequently removed from D2 by the EPA much like leaded gasoline of yesteryear. So the second tank I ran in my TDI was Hot Shot's EDT. I can't comment on the comparative difference as I ran this from almost day one. What I like is the claimed increased lubricity and cetane boost that is supposed to bring our crappy D2 up to reasonable levels the rest of the world enjoys. Fuel economy seems fine but playing with a low spun turbo and the subsequent torque is sometimes too irresistible to give fuel economy a fair chance. Besides, I need to blow out all that accumulated carbon :) I like the fact that the Hotshot's EDT seems more concentrated and affordable than the competition. 1oz for a tank is almost a performance treatment for my TDI. It's a negligible cost for a fill up and I hope they keep it that way. My dislike might be the one thing other people love about this product and that's the bottle. The bottle is meant to be squeezed to get the measured amount in the top fill area so measuring is easier. My concern is the filler neck is not long enough to cram into the filler to avoid spilling without a funnel and diesel doesn't do many favors to paint. My workaround was to save the empty bottles from other gasoline treatments and use a syringe to fill 1oz amounts of EDT and place in the trunk of the car in double plastic bags. Seems to work fine although the kitchen was probably not the best place to do this since it doesn't smell like flowers. Next purchase will likely be the bulk bottle. It's kind of a shame we actually need this kind of protection now since the US fuel standards are almost non-existent. Even B1 blended bio diesel would be a huge improvement in lubricity but not available where I live. Thanks Hotshot's...Good stuff!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 31, 2020
S
Verified Purchase
SCOTT
Massapequa, US
★★★★★ 5
Recommended by John. So far great additive for the CP4
Size: 16 Fl Oz (Pack of 2)
I have a ‘22 6.7 Powerstroke w/27k and pull heavy trailers in FLA. I’m worried about the (disco party). John I believe from the Ford Dealer in Hereford, Tx recommended this. I run 2 oz per fill and will see what happens. I’ve got Five fill ups on it now and seems to help responsiveness. Proof will be in the pudding. So far I’m pleased
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
R
Verified Purchase
ReevesRacing
Dallas, US
★★★★★ 5
Quieter and more mpg in TDI
Size: 1 Count (Pack of 1)
Didn't really believe the hype. Did a little research and watched Project Farm and decided to try. Im not a snake oil guy....but I will say my 2013 common rail TDI is quieter and I get a tad more fuel mileage. Does it pay for itself? Well, it does get better mpg, but I feel the reduction in noise most likely relates to less wear and tear and thats good enough for me. Im only using 1oz per fill up (about 14 gallons) so it lasts a very long time. I get 40mpg and im not light footed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026

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