Group 75 battery size

Close in size

No other group in the BCI table comes within 10 mm (0.4 in) of group 75 on all three sides: look for group 75 itself.

Before you buy a group 75 battery

• Read the group number on the label of the battery in your car, or in the owner's manual: it should say 75.
• A group with an "R" after the number has its terminals reversed: do not swap one for the other without checking where your cables reach.
• Choose cold cranking amps (CCA) at least as high as the original, especially for cold winters.
• Measure your battery tray and the room above it, then compare with the size printed for the exact battery you pick, not only with the group number.
• Group 75 has side terminals (threaded studs on the front): the new battery must match, and the hold-down must fit the box.
• Most stores take the old battery back for recycling, often against a core charge.

Good to know about group 75

• Group 75 has side terminals. Seen from the terminal side, the positive terminal is on the left.^1,2,3
• Group 75 is common in many GM cars and also appears in some Chrysler-family vehicles.^2,4
• Dual-terminal versions carry both top posts and side terminals, under combined labels such as 75/86.^5,6
• AGM versions exist in dual-terminal group 75 sizes.^6,7
• Real group 75 batteries can be longer than the 9.06 in BCI figure: NAPA, Batteries Plus and East Penn list 9.75 in, and Odyssey 9.5 in for its dual-terminal 75/86. Measure your tray before you buy.^1,8,9,10

How we checked this page

Checked on October 16, 2026. We kept a fact only when two independent sources agree, and each one is numbered to its sources below. We never write a price: the listings come straight from eBay and show what sellers ask. This page was written with an AI assistant and checked against the sources below.