Please check the amount of holes your canister has at each end before ordering. The canister will either have (4) holes at each end or (8) holes at each end. The canisters that have (8) holes are thicker canisters and your 4-bolt end caps will be too big for the 8-bolt canister. If you have questions regarding this, please give us a call.All of our remaining 4-bolt canisters are in black and are in the standard 16" length (no shorty canisters).