L7.5 Series 8 AWG – 4 AWG Silicone Battery Terminal Covers Fits M8 & M10 Studs
P/N: L7.5 Series
The L7.5 Series battery terminal cover fits wire diameters up to 7.5mm (8 AWG – 4 AWG) and accommodates M8 (5/16″) to M10 (3/8″) studs.
Flame-retardant, high-temperature resistant, and engineered to prevent electrical shorts and accidental contact for automotive battery banks, inverters, and marine power distribution.
Model Selection Specifications
| Model No. | Wire Entry | Cap Inner Dia. | Total Length | Stud Fit | Features |
| L7.5-15-59 | 7.5mm (8-4 AWG) | 15 mm | 59 mm | M8 (5/16″) | With Pull-Tab |
| L7.5-19-69 | 7.5mm (8-4 AWG) | 19 mm | 69 mm | M10 (3/8″) | Large Cap / Pull-Tab |
Key Features & Benefits
- Secure Fit for 8 AWG – 4 AWG Cabling
The 7.5mm wire entry is designed to create a tight, moisture-proof seal around medium-gauge cables ranging from 8 AWG to 4 AWG. The cap options (15mm and 19mm ID) fit securely over standard M8 (5/16″) and M10 (3/8″) battery studs and copper lugs, ensuring a stable connection without slipping.
- High-Temp Flame Retardant Silicone Material
The flame-retardant silicone construction provides excellent thermal stability with a working temperature range of -40°C to +230°C. This durable material resists melting or cracking in high-heat engine bays and meets strict safety standards for electrical insulation, unlike standard PVC or rubber covers.
- Total Corrosion & Short Circuit Prevention
The fully enclosed design acts as a robust barrier against dust, oil, moisture, and accidental contact. These insulating boots effectively prevent arc-over and corrosion buildup on battery terminals and inverter connections, significantly extending the lifespan of electrical systems.
- Enhanced Elasticity & Pull-Tab Design
The soft silicone body offers superior elasticity compared to rigid plastic caps, allowing for easy installation over crimped lugs. Both L7.5 models feature an integrated pull-tab (grip), making removal for maintenance quick and effortless, even in tight battery boxes.
- Color-Coded for Safety & Identification
The industry-standard Red and Black color options allow for immediate visual identification of Positive (+) and Negative (-) polarity. This color coding is essential for preventing reverse polarity mistakes during installation and maintenance in automotive and marine applications.
Application Gallery
Typical installation on industrial machinery and marine battery banks.
If you have any questions about the product or would like more information, we encourage you to contact us via email at sales1@chinadaier.com or through our live chat. We are here to help you and give you the information you need.