Nylon Piston - Alemite - 338120 338120 — a direct-fit replacement replacement part. Ordering the replacement part 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: BL-2004-084
- Type: Genuine OEM replacement part
Lift manufacturers revise their machines mid-production without changing the model name, which means two lifts that look identical across the shop can take different parts. The part number on this page fits a specific design — and the way to be sure it fits yours is the model and serial number on your lift’s data tag, not the model name alone and not memory. Serial-range splits are the most common reason a correctly named part comes back: right lift, wrong revision. Thirty seconds with the data tag before you order beats a week of freight in both directions.
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.
- Major Repair Kit for 8550; 8551; 8559 - Alemite - 393514
- Aluminum Gasket - Alemite - 51017
- Seal - Alemite - 172190-10
- Aluminum gasket - Alemite - 330334
- Quad Ring Packing (10 pack) - Alemite - 171700-80 X171008-37
- Seal 1/2" x 3/4" - Alemite
Confirm this is the right part before you order
Lift manufacturers revise parts mid-production without changing the model name, so the same lift bought two years apart can take two different revisions of the same component. Before you order, find the model plate on the lift — on most 2-post lifts it rides on one of the columns at eye level, on 4-post lifts it is usually on a column or the power-unit side runway — and note the full model number and serial. The serial dates the lift to a production run, and that is what decides which revision fits.
If the plate is painted over or missing, take a photo of the part you are replacing next to a tape measure and send it to us. Between the dimensions, the mounting pattern, and what lift it came off of, we can almost always identify the exact part before you spend money on the wrong one.
Find the data tag — usually on a column or the power unit — and read the model and serial before ordering. If the tag is painted over, gone, or unreadable, look for numbers stamped into the old part itself, or send us a photo of the part and its mounting; we identify lift parts from photos every week. While you are at the tag, note it somewhere permanent, because you will need it again.
If the replacement does not match the old part when you unbox it, stop and call before installing it. Forcing a near-fit part onto a lift is how a parts order turns into a structural problem — the fit difference usually exists for a reason.
Why buy your replacement part from Auto Lift Services
We install, inspect, and repair automotive lifts every week — the BL-2004-084 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 OEM — 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.
About this 338120 nylon piston
Sourcing the correct 338120 nylon piston is not the spot a shop wants to gamble. This piece sits inside a load path the lift manufacturer engineered to specific tolerances, and a substitute that looks close but is off by even a small margin can transfer load onto a neighboring component that was not designed for it. We stock this exact part to the OEM specification the original manufacturer publishes, which is why techs who have been through a bad aftermarket cycle keep coming back to us for the same replacement whenever their next need comes up.
Technical specification & installation notes
Torque and installation notes for this component follow the manufacturer's service manual. Where a torque value is called out, use a calibrated torque wrench and follow the tightening sequence the manual publishes for that fastener location — many lift assemblies require star-pattern or crosswise tightening to distribute load evenly. Skipping that step is one of the most common reasons a correctly-sourced 338120 nylon piston still ends up needing to be re-serviced within a year. Our tech line at 800-674-9302 will walk your installer through the procedure if the shop does not have the current service manual on hand.
Shipping & ordering
Freight covers the continental United States on all standard orders. We ship UPS or FedEx ground for parts under 30 lb; heavier assemblies quote at published carrier rates. International orders on the 338120 nylon piston require a freight quote — email dimensions, weight, and destination country to [email protected] and we return a rate within one business day. Alaska, Hawaii, and US territories quote at published rates and typically take five to ten business days depending on carrier and destination.
Warranty coverage
Every 338120 nylon piston sold through Automotive Lift Services carries a one-year manufacturer-defect warranty. If it fails within that window due to a defect in material or workmanship, we replace it at no charge. Damage from improper installation, use outside the lift's rated capacity, side-loading, or modifications to the parent lift are not covered. The warranty is documented on your original order receipt — retain that record for the coverage period. To submit a warranty claim, contact us with the order number and a photo of the failure at [email protected].
Cross-reference & fitment
Alternate applications for the 338120 nylon piston sometimes exist. Where a common part fits multiple lift models across a manufacturer's catalog, cross-reference sheets show the compatible models explicitly. If you are consolidating parts stock and want to know which of your lifts the piece covers, email the request to [email protected] with a list of the lift models in your bay — we return a compatibility grid showing which lifts accept the replacement and which need a different number.
Questions about the 338120 nylon piston? Call our parts desk at 800-674-9302 or email [email protected]. We ship nationwide from our Iowa warehouse and answer fitment questions within one business day.
Nylon Piston - Alemite - 338120 338120
Inspect your lift.
Free. In your browser.
Our free lift inspection walks your lift end to end and shows you exactly which parts you need — right on the exploded diagram. No signup, no charge.