Mercury Marine Outboard Fuel Pump, Electric High and Low Pressure

Main Description

The Mercury Marine Outboard Fuel Pump—Electric High and Low Pressure is a complete direct replacement kit designed for Mercury and Mariner outboard motors. This dual-pump set includes both the low-pressure and high-pressure electric fuel pumps (880596T58 and 880596T55) with accessories, giving you a reliable, integrated solution for consistent fuel delivery. Built for marine use, the stainless steel and metal+plastic construction stands up to vibration, humidity, and saltwater exposure while delivering steady performance across a wide RPM range.

With a 12V power supply, this pump duo maintains stable fuel pressure whether you’re idling in the marina or planning for a fast, full-throttle run. The kit is a true direct replacement, matching OE part numbers for straightforward installation and compatibility with a broad range of Mercury and Mariner outboards. Expect fewer fuel-starvation incidents, smoother starts, and reliable performance even after long days on the water.

Key features include marine-grade durability, accurate fuel flow (100–130 L/H at 3.0 bar working pressure), and a high-pressure capability (up to 7–8 bar) to meet demanding outboard fuel requirements. This kit simplifies maintenance by combining two essential pumps in one package, helping you keep your engine running smoothly and efficiently.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

At intercyprus.com since 2002 — trusted for quality and reliability.

Benefits & Tips

• 2-in-1 reliability: High-pressure and low-pressure pumps work together to ensure consistent fuel delivery across all engine states, reducing stalls and lean conditions at high RPMs.
• Easy identification and replacement: OE numbers 880596T58 and 880596T55 are included, simplifying ordering and ensuring proper fit for Mercury/Mariner outboards.
• Marine-grade durability: Stainless steel and metal+plastic construction withstands salt, vibrations, and fuel exposure for longer service life.

Product Specifications

• Type: Direct replacement electric fuel pump kit (high pressure + low pressure)
• Interchange Part Numbers: 880596T58, 880596T55, 855427A1, 888725T1, 881705T1, 855432A07 (reference for compatibility)
• Voltage: 12V
• Material: Stainless steel, metal+plastic
• Working pressure: 3.0 bar
• Flow: 100–130 L/H
• Maximum pressure: 7–8 bar
• Dimensions (approx.): 17 cm (L) × 7 cm (W) × 7 cm (H)
• Weight: 0.9 kg
• Origin: Mainland China
• Fits: Mercury & Mariner outboard motors (direct replacement)
• Packaging: high-pressure fuel pump + low-pressure fuel pump + accessories
• OEM numbers: 880596T58, 880596T55
• Manufacturer Part Numbers: CSTP-002, CSTP-207

Package Includes:

• 1 x 12V high-pressure fuel pump (880596T55)
• 1 x low-pressure fuel pump (880596T58)
• Accessories for installation

Warnings / Reminders

• Please verify OE part numbers 880596T58 and 880596T55 correspond to your engine model before ordering.
• Refer to your Mercury/Mariner model’s fuel system requirements and use the OE number as the ordering standard for compatibility.
• Ensure correct 12V wiring and secure fuel lines during installation; work with the power off and follow safety procedures for marine fuel systems.

Language support: English (additional languages may be available where applicable).

Warranty & Certification: All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Trust statement: At intercyprus.com since 2002 — trusted for quality and reliability.