ECS Tuning Heavy Duty Ground Cable Upgrade (12421737755)

If you're experiencing electrical issues, hard starting, or flaky charging, your engine ground strap is a likely culprit. The engine ground strap is a thin, non-insulated cable that spans from the engine mount arm to the frame horn. Despite the seemingly ordinary nature of this part, on an aging chassis, it is known to cause massive headaches. Due to its non-insulated design, years of exposure to water, dirt, and road salt will cause the wire to corrode, ultimately leading to complete failure. A break in this cable will cause an open circuit, resulting in issues with the vehicle's electrical system and potentially leading to a no-start condition.

To solve this issue, we've engineered an exact-fit, upgraded ground strap for your BMW! Unlike its OEM counterpart, our design features insulated, large-gauge copper wire for dependable conductivity and long-lasting durability. Additionally, factory-style lugs are zinc-coated, crimped, and soldered, ensuring protection against corrosion and oxidation.

Whether you're replacing a visibly corroded strap or proactively preventing failure, our in-house engineered solution is sure to provide lasting performance and protection.

Replaces OEM part numbers 12421737755 and 12421714262.

FEATURES

• Direct-fit replacement and upgrade for E30 (318i/is), E36, E39, E46, and others
• Solves intermittent grounding issues caused by aging OEM straps
• Clean, stealthy design that fits seamlessly in factory engine bays
• Factory length and lug orientation for drop-in fitment
• 2 AWG tinned copper cable for excellent conductivity and corrosion resistance
• Zinc-coated lugs, crimped and soldered to resist moisture and oxidation
• Black UL1015-grade insulation withstands oil, heat, and abrasion
• Discreet ECS label for a clean, OEM+ look

PRODUCT DEVELOPMENT

Our Heavy Duty Ground Cable Upgrade was designed, engineered, tested, and quality inspected by our Research and Development team in our Wadsworth, Ohio, facility. We strive for the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.