Battery Terminal Grease & Washer Kit – 4 oz Dielectric Grease + 30 Washers

Keep every start strong—no more white fuzz, no weak cranks

Corroded battery posts steal voltage, shorten battery life, and can leave you stranded at the worst moment. Our Battery Terminal Grease & Washer Kit combines a shop-size 4-ounce jar of premium dielectric battery terminal grease with 30 color-coded felt washers, giving you everything you need to seal, protect, and maintain up to fifteen batteries. Whether you wrench on daily drivers, classic cruisers, tractors, or marine toys, this kit stops corrosion before it starts and keeps electrical connections running at peak efficiency.

Why dedicated battery terminal grease beats “whatever’s on the shelf”

Ordinary multi-purpose grease can trap moisture and break down under the acidic environment of a lead-acid battery. Our silicone-based dielectric battery terminal grease is purpose-blended to:

• Seal out acid vapors and road salt that cause the tell-tale blue-green crust.

• Resist temperature extremes from -40 °F Midwest winters to 400 °F under-hood summers.

• Block galvanic reactions between dissimilar metals, preventing voltage drop and hard starts.

The result? Faster morning starts, longer alternator life, and batteries that actually live up to their warranty.

What’s inside the kit

• 4 oz brush-top jar of dielectric battery terminal grease – enough for years of service.

• 30 felt battery washers (15 red positive, 15 green negative) pre-saturated with corrosion inhibitor.

Key benefits you’ll notice right away

1. Instant corrosion barrier – One thin film seals micro-gaps where acid mist escapes.

2. Lower resistance, higher CCA – Clean, greased posts deliver full cranking amps to the starter.

3. Color-coded maintenance – Red vs. green washers make polarity checks a two-second glance.

4. Extended component life – Protects clamps, cables, and expensive charging-system parts.

5. Shop-grade size – 4 oz jar lasts up to 150 terminals—perfect for fleets, shops, or DIYers with toys galore.

Three-step application—done in five minutes

1. Clean each post with a wire brush until bright metal shows.

2. Slip the red or green felt washer over the terminal and seat it at the battery top.

3. Brush a light coat of dielectric battery terminal grease on the post and inside the cable clamp, then tighten to spec.

Fire the engine—notice the stronger, more confident crank.

Tip: A dab of the same grease on spark-plug boots, trailer-light sockets, and fuse blades guards against moisture everywhere.

Perfect for every 12 V or 24 V system

Cars • Trucks • Motorcycles • Boats • RVs • ATVs • Lawn equipment • Stand-by generators—if it has a lead-acid or AGM battery, it benefits from dedicated battery terminal grease.

Technical specs

How we outperform ordinary grease & sprays

Spray protectants wash off in rain and road grime. Petroleum greases soften under battery acid and can conduct current—exactly what you don’t want. Our silicone-thickened, non-conductive battery terminal grease stays in place for seasons, won’t melt, and never creates a stray current path that drains the battery overnight.

Built by 4LifetimeLines™—trusted by pros

• Made in the USA with strict quality controls.

• Lifetime satisfaction guarantee—if corrosion sneaks past, we make it right.

• Same-day shipping from our US warehouse on orders placed before 2 p.m. EST.

Power every start—add the Battery Terminal Grease & Washer Kit to your cart now and say goodbye to corroded posts for good.