Walbro

ProTuner 750 Inline Electric Fuel Pump

$529.99

SKU: MRF-MP-4303

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Magnafuel MP-4303 ProTuner 750 Series is a high-performance inline electric fuel pump engineered for demanding applications. Its quiet operation makes it an excellent choice for vehicles used for both street driving and competitive racing. This pump is capable of supporting over 2,000 horsepower and is built for continuous duty cycles. Constructed from CNC-machined, hard-anodized aircraft aluminum, the MP-4303 features a high-torque custom motor with low current draw, utilizing a double support bearing for durability. It includes polymer wear plates for quiet and smooth operation and has no pump shaft seals. The fuel pump can be mounted either vertically or horizontally to accommodate various installation layouts. It operates with a fuel pressure range of 20-120 psi and has a current draw of 14 amps at 45 psi. The inlet and outlet ports are both -8 AN size; however, fittings are sold separately.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandWalbro
Part NumberMRF-MP-4303
CategoryAir and Fuel

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

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.

View Full Return Policy

Shipping

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.

View Full Shipping Policy