Dorman Battery Hold-Downs: Cross-Bar vs Base Clamp

A replacement battery restraint has to match the mounting method in the vehicle—not just the battery's group size. The Dorman HELP! line includes both top cross-bar restraints and base-clamp or original-equipment-style hold-downs. These styles use different mounting points and cannot be treated as interchangeable.

Top cross bar or battery base restraint?

Compare the exact Dorman part numbers

The numbers above identify separate store products. The cross bars have a different holding method from an original-equipment-style base clamp. A GM-style designation does not mean a part fits every GM vehicle.

What to measure before ordering

1. Look at the existing installation: Is the battery restrained from above by a cross bar, or from the bottom edge by a wedge or clamp?
2. Inspect the battery tray: Check for threaded holes, J-bolts, rod anchors, bracket slots and the correct hardware attachment points.
3. Check the battery case: Match battery group, footprint, height and the shape of any lower retaining ledge.
4. Measure the restraint: Confirm bar span or clamp profile, fastener length and the available clearance above the battery.
5. Compare the exact part: Use the existing Dorman MPN or a manufacturer-supported vehicle application where available. Do not assume two black retainers are identical.

Common replacement questions

Can a cross bar replace a base clamp? Not without a properly designed mounting system for that style. The battery tray, anchoring hardware and battery case must all match the restraint design.

Are Dorman 00587 and 00588 the same part? No. They have different manufacturer identifiers. Their similar dark colour is not enough to establish interchangeable fit.

Will a universal cross bar fit every battery? No. A universal-style product still needs appropriate rod spacing, battery height and suitable mounting anchors. Alterations may be necessary, but should not compromise battery retention.

Find the matching Dorman hold-down

Each product card opens its own listing for item condition, current availability and supplied components. The pictures represent catalog product imagery; do not assume they show the exact condition of an individual unit.

Dorman 00580 · Steel cross-bar hold-down kit

Silver steel cross-bar kit. The listing gives a 5/16 × 10 size designation; confirm the dimensions of your battery tray and retaining rods.

View 00580 and check condition

Dorman 00585 · Blue steel battery cross bar

Blue steel top restraint for compatible battery mounting hardware. Its colour alone does not establish bolt spacing or vehicle fit.

View 00585 and check condition

Dorman 00587 · Black GM-style battery hold-down

Black matte plastic GM-style battery hold-down. Match the original mounting shape and bolt location; this is not a universal top bar.

View 00587 and check condition

Dorman 00588 · Black replacement hold-down kit

Black replacement hold-down kit; compare the original clamp profile, mounting position and fasteners rather than assuming interchange with 00587.

View 00588 and check condition

Related battery and electrical guides

If you also need a battery enclosure, compare our Moeller Marine battery box size guide. For battery disconnects, relays and wiring distribution, see battery compartment electrical parts identification. The enclosure and wiring components do not replace a properly fitting battery hold-down.