Billet Optima Battery Mount, Grid Top

Machined, Assembled, and Packaged in the USA!

A stock battery tray held together by a cracked plastic bracket and a rusty hold-down rod has no business sitting under the hood of a truck you've put this much work into. If you've upgraded to an Optima Group 34/78 battery — and if you're running any kind of serious electrical load, stereo system, winch, or you just want a battery that isn't going to leave you stranded, you probably have — this billet battery mount is the way to secure it right.

Machined from solid billet aluminum right here in the USA, this mount is built specifically around the dimensions of an Optima Group 34/78 battery, the same group size found under the hood of a huge range of Chevy, Dodge, Ford, and other domestic trucks and cars, OBS included. Instead of a flimsy factory hold-down that lets your battery shift around every time you hit a pothole or launch off-road, this billet mount clamps your battery down solid and keeps it exactly where it belongs.

The mount measures 11-3/4" long, 7-3/4" wide, and 7-1/8" tall, so double check your battery tray and engine bay clearance before you order — this is a serious, substantial piece of aluminum, not a flimsy universal strap. Every mount ships with all the stainless-steel hardware you need for a complete installation, so there's no trip to the hardware store and no wondering if the included bolts are actually going to hold up to years of engine bay heat and road grime. Stainless means no rust, no corrosion, and hardware that still looks good years down the road.

This "Grid Top" version is designed to work with the grid-style top terminal layout on Optima batteries, giving you clean, secure access to your terminals without any interference from the mount itself. It's a universal-fit design, meaning it isn't tied to one specific vehicle — it's built around the battery, not the truck — so depending on your specific tray setup and engine bay layout, some minor modification may be needed to get a perfect fit. Most OBS trucks running an Optima Group 34/78 will find this drops right into the stock battery location with minimal fuss.

Finish-wise, you've got two options: a raw machined look that shows off the CNC tool marks for that clean industrial billet aesthetic, or a black anodized finish if you're keeping your engine bay blacked out and stealthy. Either way, you're getting the same solid billet aluminum construction underneath — this isn't a finish dressing up a weak part, it's a genuinely tough mount that also happens to look good.

Whether you're running a built LS swap with serious current draw, a stereo system that needs a battery that can keep up, or you just want your battery to stop rattling around every time you take your OBS off-road, this mount solves the problem properly. It's a one-and-done upgrade — install it right the first time, torque your Optima down solid, and stop thinking about your battery tray.

Note: Battery not included. Universal fit — please verify clearance and hold-down orientation for your specific application before installing.

Fitment: Universal fit for Optima Group 34/78 batteries — commonly used in 1988-1998 Chevy/GMC OBS trucks and many other domestic vehicles.