The Challenger 3W-02-13 arm restraint gear 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 arm restraint gear 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: 3W-02-13
• Brand: Challenger
• Type: Genuine OEM arm restraint gear
• Fits: SA10

A safety latch is the positive stop that keeps a raised component — an arm, a carriage, a locking device — from dropping if something upstream lets go. It's designed to do nothing at all until the moment it's needed, which is exactly why it gets ignored. A latch that's rusted, bent, or missing its spring is a latch that won't be there in the one instant it matters.

There is no part on a lift where "I'll get to it later" is more misplaced than the locks. This is the component that holds a car over a technician's head. A rounded tooth or a sticky pawl gives no second warning — it holds until the day it doesn't. Restraint gear and safety latches are cheap and the labor is modest; skipping them to save an afternoon trades a small job for a catastrophic one.

What lifts this arm restraint gear fits

This arm restraint gear fits the lift models below. Click a model to open its visual parts breakdown — the exploded drawing with every part numbered, so you can confirm this is the right part for your exact lift before you order.

• SA10 — see the exploded parts breakdown for this lift

Related parts for this lift

The parts below are commonly ordered alongside this one — cables, sheaves, seals, and hardware wear on similar schedules, and most repairs go faster when the whole set is done in one visit.

• Challenger 3W-02-12 Arm Pin
• Challenger 3W-02-14 Arm Restraint Gear Shaft
• Challenger 3W-02-15 Arm Restraint Shaft Spring
• Challenger 3W-04-17 Inner Arm Restraint Gear
• Challenger 3W-04-18 Arm Stop Insert
• Challenger 3W-06-01 Arm Pin Retaining Ring

Replacing your arm restraint gear

Replacing a lock ladder means getting the old one off its mounts, fitting the new one so the teeth line up with the pawl's travel, and securing it with no play. Then cycle the lift and watch the pawl catch a full tooth at every height. Because this is the lift's last line of defense, the full procedure is worth following start to finish. Full step-by-step: how to replace lift arm restraint gears.

Find the right part for your lift

If you are not sure this part matches your setup, the fastest check is the visual breakdown: open our Challenger parts lookup, pick your model, and match your part against the drawing where every item is numbered. Can't read the model plate? our guide to finding your model number shows exactly where it lives on each lift type, and we are a phone call away if you would rather have us confirm it.

Signs the locking system needs attention

For safety latches and restraint gear, verify the part actually deploys. Trip it by hand and confirm it swings or drops fully into its stop, then springs clear on release. Look for bends, cracks at welds, seized pivots, and missing springs or pins. A latch that's stiff, partially seized, or bent won't reach its stop in the instant it's needed — which is the only instant it exists for.

Parts commonly replaced at the same time

Lock hardware works as a set, so when one part is worn the others usually are too — latches, pawls, springs, and the release cable all age together. Doing the full lock rebuild on both columns at once keeps engagement even and saves a second teardown. We will assemble the complete lock kit for your model.

Safety notes

The locking system is the last line of defense on a lift, so a worn latch or sticky pawl is a safety defect, not a nuisance. Both columns must engage and release together; if one clicks late or drags, the lift comes out of service until it is corrected. Never defeat or wire back a lock to keep a lift running.

Before you order

Have your model and serial ready, and note whether you need parts for one column or both — even lock wear is best corrected as a set. If the release cable is stretched or frayed, order it alongside the latch and pawl. Not sure which version your lift uses? Send a photo of the old parts.

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.

Why buy your Challenger arm restraint gear from Auto Lift Services

We install, inspect, and repair Challenger lifts every week — the 3W-02-13 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 — and every part ships genuine, no aftermarket substitution unless you ask for it.