Big 7 Kits Battery Cable Kit 01-07 GM 6.6L Duramax LB7 / LLY / LBZ
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- Ships from Big 7 Kits
Restore dependable electrical performance in your Chevrolet or GMC 6.6L Duramax with the Big 7 Battery Cable Kit. Designed specifically for LB7, LLY, and LBZ-powered trucks, this complete replacement system eliminates aging, corroded factory wiring to help reduce voltage drop, improve cold starts, and deliver more consistent current to the starter, alternator, batteries, and electrical accessories.
Each kit is constructed from 100% fine-strand, SAE-rated pure copper cable with a flexible J1127 jacket for excellent conductivity and long-term durability. Solid-copper terminals are secured using gas-tight electromechanical crimps rated for up to 700 pounds of pull force, then sealed with marine-grade heat shrink to help protect the connections against moisture and corrosion.
This vehicle-specific Big 7 system includes replacement cables, corrosion-resistant military-style battery terminals, a MEGA fuse and fuse holder, and protective heat shielding or wrapping where required. Every cable end is clearly labeled to simplify installation and help ensure each connection is routed correctly.
• Cable Size: Choose 1/0-gauge or heavier 2/0-gauge pure copper cables
• Cable Finish: Available with Black / Ped, or Spyder-pattern protective sleeving
• High-Output Alternator Option: Adds larger cables for trucks equipped with a high-output alternator
Restore dependable electrical performance in your Chevrolet or GMC 6.6L Duramax with the Big 7 Battery Cable Kit. Designed specifically for LB7, LLY, and LBZ-powered trucks, this complete replacement system eliminates aging, corroded factory wiring to help reduce voltage drop, improve cold starts, and deliver more consistent current to the starter, alternator, batteries, and electrical accessories.
Each kit is constructed from 100% fine-strand, SAE-rated pure copper cable with a flexible J1127 jacket for excellent conductivity and long-term durability. Solid-copper terminals are secured using gas-tight electromechanical crimps rated for up to 700 pounds of pull force, then sealed with marine-grade heat shrink to help protect the connections against moisture and corrosion.
This vehicle-specific Big 7 system includes replacement cables, corrosion-resistant military-style battery terminals, a MEGA fuse and fuse holder, and protective heat shielding or wrapping where required. Every cable end is clearly labeled to simplify installation and help ensure each connection is routed correctly.
• Cable Size: Choose 1/0-gauge or heavier 2/0-gauge pure copper cables
• Cable Finish: Available with Black / Ped, or Spyder-pattern protective sleeving
• High-Output Alternator Option: Adds larger cables for trucks equipped with a high-output alternator
Diesel Power Products directs warranty claims to the respective manufacturer; coverage and duration depend on that manufacturer and product. Its one-year manufacturer-defect warranty applies only to products manufactured by Power Products Unlimited Inc., not all products it sells. Manufacturer inspection is required; DPP does not pay inspection/return shipping or labor.
Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Diesel Power Products warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
- Return eligibility
- Diesel Power Products states a 30-day window from receipt for eligible new, uninstalled, unopened and complete items in original packaging, with prior approval/RMA. Custom tuners and specified opened tools are excluded. Customer pays return shipping; original outbound shipping, including initially free shipping, is deducted. No standard restocking percentage is stated for ordinary approved returns. Based on what Diesel Power Products offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- Diesel Power Products
- Warranty duration
- Product-specific duration not stated; see supplier terms
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–7 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- Diesel Power Products
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.