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Road Power Heavy Duty 4 Gauge 25 ft Jumper Cables

kit
$52.92

Priced as of May 24, 2026

4.5(187 ratings)Buy on Amazon

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The Podium · Top 3 in Jumper Cables

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This product ranks #3 of 6 in Jumper Cables.

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CarCareTruth's Analysis

Last reviewed May 26, 2026

TL;DR Stated 4 AWG with CCA conductor confirmed by distributor disclosure — not misrepresented, but not pure copper. No independent gauge measurement found. T-Prene thermoplastic elastomer jacket is manufacturer-rated to −94°F and community-reported to stay flexible in winter (no named temperature). Polar-Glow clamps are top- and side-post compatible. Adequate for passenger-car and light-truck emergency use at 25 ft; the length-gauge combination is marginal for sustained heavy-diesel cranking. Passive cable — no inline reverse-polarity protection.

What it is and how it performs

Road Power states 4 AWG on the 25 ft cable — CCA conductor confirmed by distributor disclosure (Empire Rigging lists model 86620104 explicitly as CCA) and corroborated by sibling-SKU distributor data; no independent gauge measurement exists. T-Prene thermoplastic elastomer jacket is manufacturer-rated to −94°F; one Canada reviewer confirms the cable stays pliable in winter, though no named temperature is cited. Polar-Glow ergonomic clamps are described as top- and side-post compatible, with copper contact surfaces per one verified reviewer; one 3-star reviewer reported a crimp failure requiring re-crimping. Passive cable — no inline reverse-polarity electronics. Length at 25 ft is marginally long for a 4 AWG CCA conductor when sustained heavy cranking loads are applied.

Who should buy this — and who should skip it

Right pick for a passenger-car or light-truck owner who needs a long-reach emergency cable and occasionally jumps in awkward parking situations — the 25 ft length handles nose-to-tail and side-by-side scenarios where 16–20 ft cables fall short, the T-Prene jacket holds up in cold-weather climates, and the UL Listing provides independent construction verification. Skip if the vehicle is a heavy-duty diesel or large commercial truck — the 4 AWG CCA conductor at 25 ft is marginally undersized for sustained 400 A cranking, and the "commercial-duty" label overstates the use case. Also skip if a dedicated storage bag matters — no bag is included.

Safety and environmental impact

Passive electrical conductor with T-Prene thermoplastic elastomer jacket — no chemical exposure pathway in normal use. Passive cable with no reverse-polarity indicator or inline protection electronics. CCA conductor recycles poorly — separating the copper coating from the aluminum core is not economically viable at most scrap facilities; insulation is not routinely recycled. The UL Listing covers construction safety; it does not certify sustained cranking current capacity at the stated gauge.

Frequently asked questions

Are Road Power 4 gauge jumper cables pure copper or CCA?

CCA (copper-clad aluminum). Distributor Empire Rigging explicitly lists model 86620104 as 'CCA Polar,' and sibling SKUs from the same Road Power family are uniformly disclosed as CCA by multiple B2B distributors. The Amazon listing says 'copper' without a qualifier — that language does not indicate pure copper. CCA has higher electrical resistance than solid copper at the same stated gauge.

What is T-Prene insulation?

T-Prene is Road Power's trademarked name for a thermoplastic elastomer (TPE) jacket compound. Multiple retailer descriptions cite a manufacturer cold-flex rating of −94°F (−70°C), which exceeds the performance of standard PVC insulation. One Canadian reviewer confirms the cable stays pliable in winter use, though no specific temperature is named in community evidence.

Are these UL Listed?

Yes — UL Listing is confirmed across multiple retailer product descriptions for this model. UL Listing verifies the product meets electrical safety construction standards. It does not independently confirm the stated AWG gauge.

Is 25 ft of 4 AWG adequate for heavy-duty diesel trucks?

Marginally. The brand markets these as 'commercial-duty' and community reviews confirm use on Utilimaster diesel delivery trucks, but 4 AWG at 25 ft produces more voltage drop under sustained high-amperage cranking than a shorter or heavier-gauge cable. A 2 AWG cable is more appropriate for regular heavy-diesel use.

Do these cables come with a storage bag?

No dedicated bag is included. The cables arrive in a cardboard box with a handle, which functions as initial storage. Multiple reviewers purchased a separate cable bag for trunk storage.

From the manufacturer

Marketing copy from Road Power, via Amazon. Not editorial.

  • Strong & Reliable Performance: The Southwire Road Power provides a commercial grade jumper cable with ergonomically designed clamps for safe, easy, and efficient jump starts
  • Ergonomically Designed Clamps: This car battery jumper cable features ergonomic handles for easy use when it matters most
  • A Tool for Any Situation: Whatever you're up against at home or at the jobsite, Southwire has a tool that will make your work more convenient and efficient
  • Tools You Can Trust: Southwire tools are made from high-quality materials and are built to last
  • Delivering Power Responsibly: Southwire is known for providing innovative products and services and delivering on our promises

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Manufacturer images

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Manufacturer specifications
Manufacturer
‎Southwire
Brand
‎Road Power
Model
‎86620104
Item Weight
‎7.3 pounds
Item model number
‎86620104
Batteries
‎1 Unknown batteries required.
Manufacturer Part Number
‎86620104
ASIN
B00002243X
Customer Reviews
4.5 4.5 out of 5 stars (187) 4.5 out of 5 stars
Best Sellers Rank
#1,722,692 in Automotive (See Top 100 in Automotive) #702 in Automotive Battery Jumper Cables
Date First Available
November 9, 2004

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