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Advanced Anti-Corrosion Barrier: Formulated specifically to prevent oxidation, rusting, and pitting on exposed metal contacts, switch terminals, and junction box pins.
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Essential Maintenance Safety Guard: Designed for regular, periodic application across all heavy-duty commercial vehicle connections that do not utilize pre-sealed Fit 'N Forget™ booted plugs.
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Mid-Size 5 oz. Workshop Tube: Features an easy-squeeze tube design that allows mechanics to apply exact amounts of grease directly to terminal pins without waste or mess.
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Thermal and Chemical Stability: High-durability compound is built to resist temperature extremes and will not thin out, run off, or dry into a brittle crust under constant road heat or sub-zero winter freeze.
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Preserves System Voltage: Actively blocks water and dirt from metal-to-metal contact points, eliminating voltage drops and preventing false trailer ABS dashboard codes or marker light flickering.
Truck-Lite 98013 – NYK-77 Corrosion Preventative Compound, 5 oz. Squeeze Tube
Keep your commercial truck and trailer lighting systems functioning at peak efficiency with the genuine Truck-Lite 98013 NYK-77 Corrosion Preventative Compound. Formulated into a mid-sized, highly versatile 5 fluid-ounce (5 oz.) squeeze tube, this professional-grade non-conductive electrical grease is designed to shield open vehicle terminal connections, exterior toggle switches, and distribution blocks from heavy oxidation.
Trailer wiring systems are highly susceptible to "green corrosion" caused by moisture, road grime, and winter chemical brines. The Truck-Lite 98013 formula forms an immediate hydrophobic sealant layer on critical connection pins to stop rust before it starts. The 5 oz. squeeze tube provides the perfect middle-ground volume—offering plenty of compound for multi-vehicle servicing while remaining compact enough to store inside mobile service kits, shop drawers, and driver toolboxes.
The Truck-Lite 98013 NYK-77 Corrosion Preventative Compound, 5 oz. tube, is recommended for:
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Packing mid-size junction boxes, tractor-trailer 7-way power plugs, and nose box receptacles during scheduled service intervals.
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Coating standard terminal connection pins when updating auxiliary marker lights, stop/turn/tail bulbs, or license plate lamps.
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Squeezing into exposed ignition lines, liftgate power switches, and external control buttons on utility flatbeds.
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Alternative Sizes Available: If your shop requires a different volume of the NYK-77 formula, check out the portable 2 oz. tube (97944), the 8 oz. benchtop can (97940), the 14 oz. grease gun cartridge (97948), or the bulk 1-quart shop can (97943).