WD-40 490733 Lubricant Penetrant Pen 0.9 Oz 3 Pack

Product Description

The WD-40 490733 is a multipurpose lubricant and penetrant in pen/marker form, designed for precise application in tight or hard-to-reach areas. The petroleum-based formula uses an aliphatic hydrocarbon composition with a petroleum distillates lubricant base, delivering targeted lubrication and penetration on metal surfaces, fasteners, hinges, and similar components. Each pen holds 0.9 oz of formula and is VOC compliant. This product ships as a pack of 3 pens, making it practical for shop stock or field kits. HVAC technicians, plumbers, electricians, and maintenance professionals rely on applicator-style lubricants like this for controlled delivery without overspray or waste.

This penetrant pen suits residential and commercial maintenance applications where a standard aerosol can is too imprecise or too large to use effectively. Common scenarios include loosening corroded screws and fittings, lubricating small mechanical linkages, and treating tight pivot points on equipment covers, dampers, or valve stems. The pen format makes it a useful addition to a field technician's toolbox or a bench tech's workstation. The pack quantity of 3 supports stocking multiple locations or sharing across a service team.

Key Features

• Pen/marker applicator format for precise, controlled delivery
• 0.9 oz container size per pen — compact and portable
• Petroleum distillates lubricant base with aliphatic hydrocarbon composition
• VOC compliant formulation
• Flammable — suitable storage and handling required
• Packaged as a 3-count unit for shop or field stocking

Compatibility

Designed for general-purpose lubrication and penetration on metal fasteners, hinges, linkages, and similar components across HVAC, plumbing, electrical, and general mechanical maintenance applications. Not rated for food-grade contact environments.

Installation Notes

Applied by licensed or qualified maintenance technicians as part of routine service. This product is flammable — keep away from open flame and high-heat surfaces during and after application. Allow adequate ventilation when using in confined spaces. Store per applicable safety data sheet guidelines and local regulations for flammable petroleum-based products.