The Challenger 313-3254-0 seal kit 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 seal kit 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: 313-3254-0
• Brand: Challenger
• Type: Genuine OEM seal kit

Hydraulic parts fit by the numbers, and the numbers are unforgiving. A cylinder has to match working length and port type; a hose is spec'd by inner diameter, pressure rating, and end fittings; a power unit lives or dies on voltage. Even seal kits differ by who built the cylinder — the same lift model can carry two cylinder brands with different seal profiles. Order to the actual part, not the lift name.

No hydraulic part works alone. A cylinder is only as good as the fluid feeding it, the fluid is only as clean as the reservoir and filter keep it, and a fresh seal kit won't hold in a barrel that's already scored. That's why a leak is worth diagnosing as a system: replace the weeping part, but check the fluid, the fittings, and the bore before you call it fixed.

Replacing your seal kit

A lowering or flow valve issue — a lift that drifts down or won't reach full height — is often fixed at the valve rather than the cylinder, but it takes a methodical check to be sure. Isolate whether the leak is internal or external, then service or replace the valve and confirm the lift holds height afterward. The step-by-step guide lays out how to trace it. Full step-by-step: how to reseal a lift cylinder.

Find the right part for your lift

Not certain this is the exact part your lift needs? Start with your lift's model and serial off the data plate, then open our Challenger parts lookup to see the visual parts breakdown for your model — the exploded drawing with every part numbered and priced. If your plate is missing or unreadable, our guide to finding your model number walks through where to find it, or send us a photo and we will identify the lift for you.

Signs of a hydraulic problem

For a seal kit specifically, the decision is made inside the barrel. Before you order seals, confirm the bore isn't scored and the rod isn't pitted where the seal rides — new seals won't hold in a damaged cylinder. Shine a light down the barrel; smooth and shiny is good, scratched or rust-pitted means the cylinder itself needs replacing, not just seals.

Parts commonly replaced at the same time

One trip up, one refill, one bleed: order the companion hydraulic parts with this one. A seal kit alongside a cylinder, a fresh hose, and the correct oil turn a partial fix into a finished job. Tell us what lift you have and we will build the kit so nothing is left to fail next.

Hydraulic fluid

The usual fill is ISO-32 hydraulic oil, with some legacy lifts running Dexron ATF; confirm which your lift uses before topping off and keep the two separate. Bleed after filling and check the level again once the air is out — and see your manual for the exact capacity, which is model-specific.

Safety notes

Pressure and cleanliness are the two rules. Bleed the system completely so there is no air to compress, keep contamination out of every open port, and prove the lift holds at full height with no drift before it sees a vehicle. If you are not certain the bleed is complete, do it again — this is not the place to guess.

Before you order

Ordering tip: hydraulic parts are matched to the lift's pressure and geometry, so read the model and serial off the plate and, for hoses and cylinders, have the old part's dimensions. Plan to replace the oil and bleed the system as part of the job, and add a seal kit if you are opening the cylinder anyway.

Check your lift's serial before ordering

The most common reason a lift part comes back is not a defect — it is a revision mismatch. Manufacturers change sub-parts between production runs while keeping the same lift model name, so "it fits my lift model" is not always enough. The model plate carries the serial number that pins your lift to a specific run, and that is the number that settles which version of this part belongs on your lift.

Can't find the plate? Measure the old part — overall length, bolt-hole spacing, thread size on anything threaded — and photograph it from a couple of angles. Send that with your lift's brand and rough age and we will match it against the parts breakdowns we service from every week.

Why buy your Challenger seal kit from Auto Lift Services

We install, inspect, and repair Challenger lifts every week — the 313-3254-0 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.