The Challenger 16458 lift arm component is the direct replacement for the Challenger lift it came off of. This is the genuine Challenger part — same fit and same working specification as the one already on your lift. Ordering the Challenger lift arm component from us gets you the OEM piece that matches the lift, not an aftermarket knock-off that is close but not the same.

Specifications

• Part number: 16458
• Brand: Challenger
• Type: Genuine OEM lift arm component

The restraint gear on a 2-post lift is the toothed gear that engages when the lifting arm swings in under load, locking the arm at whatever angle the tech set it to. When teeth wear round, chip, or the pawl gear that engages into the restraint gear loses its point, the arm can swing under load — and a swung arm with a vehicle on it drops the vehicle. Any restraint gear that will not positively catch the arm under light hand pressure needs to come off, whether the teeth look okay or not.

Not sure this fits? Here's how to check

Pull the number off your lift's model plate first — model and serial both. Manufacturers run mid-cycle revisions that keep the model name but change hardware, so two lifts with the same name on the column can take different parts. The serial is what removes the guesswork.

Second check: compare the old part against this listing before you order. Length, mounting pattern, and thread sizes tell most of the story. If anything doesn't line up, or if the old part is too worn or broken to measure, call us with photos — we work on these lifts every week and can usually confirm fit from a picture and the lift's serial faster than you can dig through a parts diagram.

Also inspect

• Arm pin — if you had a bad restraint gear you may also have a mushroomed or grooved arm pin
• Foot-pad rubber — intact, securely attached
• Return spring on the pawl
• Arm itself — broken welds, cracks, severe rust

A restraint gear that will not engage is a lift that is unsafe to load. Do not put a vehicle on the lift until you confirm both arms lock positively under hand pressure.

Why buy your Challenger lift arm component from Auto Lift Services

We install, inspect, and repair Challenger lifts every week — the 16458 is a part we handle in the shop, not a random SKU we drop-ship.

• The phone answers if you have a question mid-install — call 800-674-9302.
• We confirm the right part for your lift's serial and production year before you order.
• Every part ships as genuine Challenger — no aftermarket substitution unless you specifically ask for an aftermarket equivalent.

If you also need companion wear items — cables, sheaves, seals, hardware — for the same repair, use our parts lookup and we will build the whole kit for your lift so you order once and finish the job.