Replacement Battery for Interstate 31-MHD | Group 31 | Heavy Duty Commercial

Power your heavy-duty equipment with confidence using our replacement for Interstate 31-MHD Battery. This Group 31 commercial battery is engineered to deliver the massive cranking amps and reserve capacity required by semi-trucks, buses, and construction machinery.

Built with Anchor-Locked elements and a reinforced case, this battery withstands the extreme vibration and impact of on-highway and off-road use. It provides reliable starting power in all weather conditions, minimizing downtime for your fleet.

Key Features & Benefits

• High Cranking Amps: Delivers robust starting power (approx. 950 CCA) for large diesel engines.
• Heavy Duty Construction: Reinforced plates and separators resist vibration damage, the leading cause of failure in commercial trucks.
• Maintenance Free: Sealed design minimizes corrosion and eliminates the need for water checks (verify specific model type).
• Direct Group 31 Fit: Standard stud or post terminals ensure compatibility with heavy truck battery cables.
• High Reserve Capacity: Powers sleeper cabs, lift gates, and auxiliary electronics without draining quickly.

Product Specifications

• Product Type: Replacement Commercial Battery
• Replaces OEM Part #: 31-MHD (Interstate)
• BCI Group Size: Group 31
• Voltage: 12V
• Chemistry: Flooded Lead Acid
• Terminal Type: Threaded Stud (Verify)
• Condition: Brand New

Common Applications

This heavy-duty battery is the standard for:

• Class 8 Semi Trucks
• School and Transit Buses
• Farm Tractors and Combines
• Construction Excavators and Dozers
• Marine Diesel Starting

Keep your fleet moving. Order your Replacement Interstate 31-MHD Battery today!

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.