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Air and Fuel› Fuel Pumps, Regulators and Components
Fuelab
Fuelab 525 EFI Adjustable FPR In-Line 25-90 PSI (1) -6AN In (1) -6AN Return - Gold
SKU: F00B 52501-5
Easy — 1–2 hours
Overview
Constructed from billet aluminum with a Type II military-grade anodized finish, the 52501 offers precise pressure adjustment with its fine thread pitch. It includes a 1/8” NPT gauge port for an external pressure gauge and a 1/8” NPT pressure reference port with a barbed fitting. The regulator is backed by a limited lifetime warranty.
Show original supplier description
Part #: 52501-5
Universal EFI Adjustable Fuel Pressure Regulator, In-Line, 25-90 psi, (1) -6AN Inlet, (1) -6AN Return
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Fuelab |
| Part Number | F00B 52501-5 |
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Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
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