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Holley 12-803 Carbureted Adjustable Fuel Pressure Regulator 4.5-9psi - Picture 1 of 1
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Holley 12-803 Carbureted Adjustable Fuel Pressure Regulator 4.5-9psi

FA Products Engine & Performance
(37382)
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US $49.95
ApproximatelyAU $76.59
Condition:
Brand New
More information - About this item condition
Compatibility:
Last one13 sold
This one's trending. 13 have already sold.
People want this. 15 people are watching this.
Postage:
US $10.60 (approx. AU $16.25) USPS First Class®.
Located in: Ontario, New York, United States
Delivery:
Estimated between Thu, 14 Aug and Tue, 19 Aug to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the postage service selected, the seller's postage history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30-day returns. Buyer pays for return postage. If you use an eBay postage label, it will be deducted from your refund amount.
Payments:
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eBay item number:202805658517
Last updated on 10 Jun, 2025 00:16:53 AESTView all revisionsView all revisions

Compatibility

This part is compatible with 3000 vehicle(s)
YearMakeModelTrimEngineNotes
1999BuickLeSabreCustom Sedan 4-Door3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; FWD, VIN: K, MFI, Natural PartType:Electric Fuel Pump
1999BuickLeSabreLimited Sedan 4-Door3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; FWD, VIN: K, MFI, Natural PartType:Electric Fuel Pump
1999BuickPark AvenueBase Sedan 4-Door3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; FWD, VIN: K, MFI, Natural PartType:Electric Fuel Pump
1999BuickPark AvenueUltra Sedan 4-Door3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; FWD, VIN: K, MFI, Natural PartType:Electric Fuel Pump
1999BuickRegalGS Sedan 4-Door3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; FWD, VIN: K, MFI, Natural PartType:Electric Fuel Pump
1999BuickRegalLS Sedan 4-Door3.8L 3800CC 231Cu. In. V6 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; FWD, VIN: K, MFI, Natural PartType:Electric Fuel Pump
1999BuickRivieraBase Coupe 2-Door3.8L 3800CC 231Cu. In. V6 GAS OHV SuperchargedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; FWD, VIN: 1, MFI, Supercharged PartType:Electric Fuel Pump
1999ChevroletC2500Base Cab & Chassis 2-Door7.4L 454Cu. In. V8 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; 2304; 2303; 2305;; RWD, VIN: J, MFI, Natural PartType:Electric Fuel Pump
1999ChevroletC2500Base Crew Cab Pickup 4-Door7.4L 454Cu. In. V8 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; 2304; 2303; 2305;; RWD, VIN: J, MFI, Natural PartType:Electric Fuel Pump
1999ChevroletC2500Base Extended Cab Pickup 2-Door7.4L 454Cu. In. V8 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; 2304; 2303; 2305;; RWD, VIN: J, MFI, Natural PartType:Electric Fuel Pump
1999ChevroletC2500Base Standard Cab Pickup 2-Door7.4L 454Cu. In. V8 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; 2304; 2303; 2305;; RWD, VIN: J, MFI, Natural PartType:Electric Fuel Pump
1999ChevroletC2500LS Cab & Chassis 2-Door7.4L 454Cu. In. V8 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; 2304; 2303; 2305;; RWD, VIN: J, MFI, Natural PartType:Electric Fuel Pump
1999ChevroletC2500LS Crew Cab Pickup 4-Door7.4L 454Cu. In. V8 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; 2304; 2303; 2305;; RWD, VIN: J, MFI, Natural PartType:Electric Fuel Pump
1999ChevroletC2500LS Extended Cab Pickup 2-Door7.4L 454Cu. In. V8 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; 2304; 2303; 2305;; RWD, VIN: J, MFI, Natural PartType:Electric Fuel Pump
1999ChevroletC2500LS Standard Cab Pickup 2-Door7.4L 454Cu. In. V8 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; 2304; 2303; 2305;; RWD, VIN: J, MFI, Natural PartType:Electric Fuel Pump
1999ChevroletC2500 SuburbanBase Sport Utility 4-Door7.4L 454Cu. In. V8 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; 2304; 2303; 2305;; RWD, VIN: J, MFI, Natural PartType:Electric Fuel Pump
1999ChevroletC2500 SuburbanLS Sport Utility 4-Door7.4L 454Cu. In. V8 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; 2304; 2303; 2305;; RWD, VIN: J, MFI, Natural PartType:Electric Fuel Pump
1999ChevroletC3500Base Cab & Chassis 2-Door7.4L 454Cu. In. V8 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; 2304; 2303; 2305;; RWD, VIN: J, MFI, Natural PartType:Electric Fuel Pump
1999ChevroletC3500Base Crew Cab Pickup 4-Door7.4L 454Cu. In. V8 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; 2304; 2303; 2305;; RWD, VIN: J, MFI, Natural PartType:Electric Fuel Pump
1999ChevroletC3500Base Extended Cab Pickup 2-Door7.4L 454Cu. In. V8 GAS OHV Naturally AspiratedNote:Avenger; Fuel Pressure Regulator; 1-4 PSI; Standard; 2304; 2303; 2305;; RWD, VIN: J, MFI, Natural PartType:Electric Fuel Pump
Portions of the information contained in this table have been provided by fap_engineparts

Item specifics

Condition
Brand New
Universal Fitment
Performance/Custom

About this product

Product Identifiers

Brand
Holley
Manufacturer Part Number
12-803
eBay Product ID (ePID)
169473476

Additional Product Features

Notes
Description--Fuel Pressure Regulator
Sub Type
Fuel Pressure Regulator
Part Type
Carburetion

Item description from the seller

About this seller

FA Products Engine & Performance

100% positive Feedback•181K items sold

Joined Oct 2014
Usually responds within 24 hours
Fernwood Auto Parts, Inc is a family operated business that started in the 1920s. We pride ourselves in having the items we sell, we ship your order quickly and accurately.
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Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable postage costs
5.0
Postage speed
5.0
Communication
5.0

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Seller feedback (39,596)

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    • w***e (629)- Feedback left by buyer.
      More than a year ago
      Verified purchase
      Thanks!!
    See all feedback

    Product ratings and reviews

    Learn more
    4.7
    74 product ratings
    • 62 users rated this 5 out of 5 stars
    • 9 users rated this 4 out of 5 stars
    • 1 users rated this 3 out of 5 stars
    • 0 users rated this 2 out of 5 stars
    • 2 users rated this 1 out of 5 stars

    Would recommend

    Good value

    Good quality

    Most relevant reviews

    See all 51 reviews
    • by jcpstrat
      02 Feb, 2017Top favourable review

      Solved my probem!

      I recently rebuilt a '74 Corvette that was fitted with an LT-1 engine. I had the Holley carb professionally rebuilt. Initially everything was fine but I randomly started having what seemed like carb problems. Gas smell in garage after being parked, running rich, plugs wet & dark when I pulled them. I tried changing fuel inlet seats, jets & tightening carb bolts up and it was still intermittent. Then after reading an article on how critical fuel pressure was I checked mine and it was 9# at Idle ... supposed to be 6#. With this fuel pressure regulator it was 6# out of the box and so far no more issues with all original parts put back in carb. The instructions in the box were a little confusing as they're for Holley Electric fuel pumps that reference this unit but I'm very pleased with it.

      Verified purchase: YesCondition: NewSold by: abad71camaro

    • by nohj2e
      22 Jul, 2020

      Title is fine.

      It works and looks good. Although they should have included mounting instructions. The mounting holes were not threaded and the mounting screws had to be forced threaded into the holes. This I did not realize this at first, and thought that they forgot to thread the holes. I would think that on a part like this, the holes should be factory threaded unless there there is a reason for not doing so.

      Verified purchase: YesCondition: NewSold by: indigo72410

    • by shockmaster1001095eh
      19 Oct, 2017

      Nice for the price

      it looked great right out of the box. It does not come with connectors (does not say it does either) so I had to purchase hose connectors. one output leaked when tightened so I had to use teflon tape to seal it (instructions say not to use tape). it is advertised to be 6.5 pounds preset, mine was reading a little higher so I had to adjust it (which is easy to do).

      Verified purchase: YesCondition: NewSold by: skipwhite

    • by deftones132012
      12 Apr, 2017

      Easy installation

      Really easy to install buy sealant for extra safety don't want any fuel leaks easiest thing to adjust an fine tune your ride only been on my car for two weeks and driven on the car one time

      Verified purchase: YesCondition: NewSold by: tennessee-performance

    • by grease1235
      15 May, 2019

      Soes what it is supposed to do.

      Hold pressure at 5psi as needed. Some installation issues: had to tap the mounting holes, one mounting screw wrung off in the firewall (cheap screws) and the lock nut for the adjusting screw is some weird size (had to finally use an adjustable wrench). But, like the title says, once installed, it worked perfectly.

      Verified purchase: YesCondition: NewSold by: skipwhite

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