Walbro BKS1002-4 550LPH High-Flow In-Tank Fuel Pump Kit Universal

Product Overview

• Walbro BKS1002-4 high-pressure in-tank brushless fuel pump kit

Features

• High-flow fuel pump capable of supporting ~1,000+ hp applications
• Brushless E5LM screw pump design for durable, low-amp operation
• Includes fuel pump, filter, wiring harness, and installation instructions
• Designed for universal EFI fuel system upgrades
• Handles gasoline or E85 with proper calibration
• Compact in-tank design for many aftermarket and custom installs
• High-pressure operation for performance engines
• Ideal for motorsport, racing, or highly tuned street applications

Specifications

• Part Number: BKS1002-4
• Pump Type: In-tank electric brushless fuel pump kit
• Fuel Type: Gasoline or E85 compatible
• Flow Rate Max: ~550 L/hr (~145 GPH)
• Flow @ ~3 bar (≈44 psi): ~525 L/hr
• Flow @ ~5 bar (≈73 psi): ~465 L/hr
• Flow @ ~7 bar (≈102 psi): ~375 L/hr
• Voltage: 12 V
• Body Diameter: ~38.25 mm
• Length (Overall): ~155 mm
• Max System Pressure: ~8.2 bar (~112 psi)
• Inlet/Outlet Fittings: mm scale inlet/outlet (high-flow compatible)

Included Components

• 1x Walbro brushless fuel pump (BKS1002)
• 1x High-performance fuel filter
• 1x Fuel pump wiring harness (~3' long)
• Installation instructions

Product Description

The Walbro BKS1002-4 Fuel Pump Kit is a universal high-flow in-tank system engineered for serious performance and motorsport use. Featuring a brushless E5LM screw-type pump design, this kit delivers approximately **550 liters per hour of fuel flow**, making it capable of supporting engines producing up to **~1,000+ horsepower** when paired with appropriate controllers and system setup. The pump runs efficiently on standard 12 V systems with a low amp draw, while providing high pressure across a broad operating range - from ~44 psi to over 100 psi - to meet demanding EFI requirements.

This kit includes the fuel pump, a performance-grade inlet filter, a wiring harness for easy mounting inside the fuel tank, and clear installation instructions for hassle-free setup. Designed as a **universal fit**, the BKS1002-4 suits custom performance builds, race cars, and highly modified street vehicles using in-tank fuel pump configurations. Its robust construction and high output make it a popular choice for E85, gasoline, and flex-fuel applications where high fuel demand and pressure are required for peak engine performance. Note: this pump kit is not CARB certified for California or certain emissions-restricted areas.