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Black and orange heavy-duty booster cables with spring clamp grips, 25 ft length, 4 AWG gauge, 400 A rating

Westward

Westward Booster Cable 4 AWG 25 ft 400 A

SKU CH-49CP-Q9PSC

Heavy-duty 4 AWG booster cables with spring-clamp jaws deliver 400 A over 25 ft

  • Heavy-duty jump starts with 400 A maximum current rating
  • 25 ft cable length reaches between distant batteries
  • 4 AWG wire gauge handles high amperage safely
  • Spring clamp jaws grip terminals securely
  • Crimped connections provide reliable cable-to-clamp bonds

Heavy-duty booster cable for jump starting

This 25 ft cable uses 4 AWG copper conductors rated for 400 A to deliver strong cranking current. Spring clamp jaws with a crimped connection grip battery terminals securely. The black and orange jacket is built for heavy-duty automotive use.

Replaces thinner or shorter jumper leads

Thinner gauge cables can overheat or drop too much voltage during a start attempt. This 4 AWG construction reduces resistance so the jump is reliable in cold conditions. The 25 ft length reaches between vehicles that cannot park close together.

Handles 400 A for most passenger vehicles

The rating covers typical engine cranking needs for cars and light trucks. Very large diesel engines or commercial equipment may exceed the 400 A limit. California Proposition 65 warnings apply to chemicals in the cable materials.

How it compares

Measured against everything we stock in Jump Starters, Chargers & Power Packs, at today’s prices. Recalculated every night.

Price $168.99
Pricier than about 91% of the 1,744 comparable items (median $14.99).

Specifications

Product
Brand nameWestward

Questions about this item

What cable length and gauge do I need to reach between two vehicle batteries?

The cable is 25 ft long and uses 4 AWG wire, giving enough reach for most engine-bay-to-engine-bay jumps.

How do I attach the clamps so they do not slip off the battery posts?

The spring-clamp jaws grip the posts when you squeeze the handles; the step people miss is rocking each clamp slightly after closing to seat the teeth fully.

When should I replace the cables because of wear or Proposition 65 concerns?

Replace them if the black or orange jacket cracks, the crimped lugs loosen, or the clamps no longer bite cleanly; the Prop 65 warning covers chemicals in the jacket material.

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