Product Overview

The auxiliary coolant water pump, OEM number A0005001986, is a secondary electric pump that supports coolant circulation in the cooling water circuit, working alongside the main water pump to maintain flow where extra circulation is needed. It runs on demand from the cooling system, and its motor and seals work under near-constant duty, which makes it a regular replacement item in the engine cooling category.

A failing auxiliary water pump can cause uneven coolant circulation and reduce cooling system performance, so a reliable, precisely made replacement matters. GSK Auto manufactures this auxiliary water pump to OEM specification at our Ningbo, China facility, with every unit tested before packing. We supply at wholesale volume with low MOQ and support private label packaging, with our team available to confirm the OEM number match before shipping.

Replacement OEM Numbers

(Note: We were unable to confirm the exact vehicle application for OEM A0005001986 from available records. Please confirm the correct part number and fitment with your supplier or parts catalog before publishing this listing.)

What Is an Auxiliary Coolant Water Pump?

Function: The auxiliary water pump supports the main coolant pump by maintaining or boosting coolant flow in a section of the cooling circuit, such as circulation to the heater core, turbocharger, or after engine shutdown.

Working Principle: The engine control unit runs the auxiliary pump's electric motor as needed, independent of engine speed, to keep coolant moving through its designated circuit. This lets the cooling system maintain flow in situations where the main pump alone would not provide enough circulation, such as at idle or after the engine has been switched off.

Importance: Reliable auxiliary coolant flow helps protect specific systems, such as the turbocharger or heater circuit, from heat buildup. A failing auxiliary pump can lead to localized overheating or reduced cabin heating performance.

Common Failures & Signs: Reduced heater output from the cabin. Coolant warning light or high temperature gauge reading in certain driving conditions. Whining, grinding, or humming noise from the pump. Coolant leak from the pump housing or seal. Pump not running when checked electrically.

Key Features

OEM-standard fitment - matches factory mounting, electrical connector, and coolant port layout for the OEM A0005001986 application.

Electric drive - built for reliable, on-demand coolant circulation.

Durable seals - built to resist leaks under constant duty.

Direct replacement - installs in place of the original pump, matched by OEM number.

Tested before shipment - every unit checked for proper function before packing.

Benefits

Importers - covers auxiliary water pump demand from a single sourcing partner.

Wholesalers - a steady replacement item in the engine cooling category.

Repair Shops - tested units reduce comeback risk on a cooling system repair.

Distributors - private label packaging available for building a branded catalog.

Packaging & Shipping

Standard export cartons. Customized packaging available for distributor branding. OEM-style and private label printing on request. Container loading handled directly, with mixed-SKU consolidation for smaller orders. Worldwide shipping to Europe, North America, South America, the Middle East, Africa, and Southeast Asia.

Why Choose GSK Auto

GSK Auto manufactures factory-direct, keeping pricing tied to production cost. This auxiliary water pump is built to OEM specification and tested before packing. We support low MOQ, private label packaging, and worldwide shipping, with our technical team available to confirm the OEM number match before you order.

Call to Action

Sourcing auxiliary coolant water pumps by OEM number? Contact GSK Auto for a wholesale quote, catalog, or OEM/private label cooperation.