What You're Actually Looking At
This is a shock absorber built for Hendrickson air suspension systems, the kind you'll find on a wide range of Freightliner trucks from the early 90s up through current builds. Hendrickson uses this same shock across a lot of their suspension packages, which is why it pops up on so many different trucks and trailers.
The 1013760000 number is the one Freightliner tends to reference in their parts books, but Hendrickson's own paperwork will usually call it something like M85029 or run under the Gabriel/Meritor naming since those companies have supplied shocks into the Hendrickson system for years.
Bottom line — if your suspension is Hendrickson air ride and the old shock is shot (leaking, bouncing, or just plain dead), this is very likely your part. But 'likely' isn't 'guaranteed,' so keep reading.
Why These Numbers Cross And What Actually Matters
Freightliner 3166287, M83123, 438031, and 85060 all point back to the same physical shock — different companies stamping their own part number on essentially the same design Hendrickson specs for that suspension. Alliance runs their own numbering too (N32 O900084 / N32 G900084), and you'll see aftermarket houses selling it as 85959, 557013, 65433, 65540, or 471700002991. Same shock, different label, different box.
Where this gets people is mounting length and bushing/eye diameter. Shocks that look identical can have different overall extended/compressed lengths or different eye bushing sizes for the mounting pins, and Hendrickson has used a few variations over the model years even within the same suspension family. If the shock is too long or too short, you'll either bind up the axle travel or get zero damping control before the axle bottoms out.
Don't match this by truck year alone. Pull the old shock, read whatever number is stamped or molded on the body, and match it against this list. If it's worn smooth or unreadable, measure eye-to-eye length collapsed and extended, and check bushing bore diameter before you order.
Ordering From PartStop
We keep this one in stock at our Tacoma counter, so if you're local and need it same day, walk in or call ahead and we'll have it up front. If you're not in the area, it ships nationwide and usually gets out same-day or next-day depending on when you order.
At $79.00 it's a straightforward aftermarket replacement — not selling it as anything fancier than that. It carries our standard 6+ month warranty, so if it fails outside of normal wear, we'll deal with it.
Confirm fitment against your VIN or the number on the old shock before you buy. We'd rather spend two minutes on the phone confirming than have you shipping a shock back because the eye bushing didn't match.
1013760000 Cross-Reference & Interchange Numbers
These manufacturer and aftermarket numbers commonly cross-reference to 1013760000. Use them to identify the part — then confirm the exact fit by VIN or the number stamped on your old unit before you order. An interchange is a starting point, not a fitment guarantee.
| Brand / Line | Cross-Reference Numbers |
|---|---|
| OE | S2212 |
| Hendrickson/Gabriel/Meritor | M85029 |
| Alliance | N32 O900084, N32 G900084 |
| Aftermarket | 85959, 557013, 65433, 65540, 471700002991 |
Frequently asked questions
Does 1013760000 fit my Freightliner Cascadia?
Depends on what suspension is under it. Freightliner used Hendrickson air ride on a lot of Cascadias, but not all of them, and even within Hendrickson setups there are length variations. Pull your VIN or the number off the old shock and call us — we'll match it before you buy, not after.
Is this the same as the Alliance N32 O900084?
Same physical shock, yes — Alliance is just another company selling the same Hendrickson-spec part under their own number. The interchange table lists it because it crosses directly, but always confirm against your old part's number since Alliance sometimes packages slight variants under similar codes.
My old shock number is worn off — how do I know I'm ordering the right one?
Measure it. Get the collapsed length and extended length, eye-to-eye, and measure the bushing bore diameter on both ends. Call us with those numbers and we'll cross it for you. Guessing on shock length is how you end up with a suspension that rides like a bucking bronco.
Not sure it fits? We check before you pay.
Run your VIN and we’ll match parts to your exact truck, or call the counter — a person who knows trucks verifies fitment by OEM number before the order ships. No wrong-box returns.
More cross-reference guides
Need the part, not just the reading?
Every part below is a Premium Quality aftermarket Direct Replacement with published OEM cross-reference numbers, a 6+ month warranty and same-business-day shipping from Tacoma, WA. Not sure it fits? Run your VIN — or call and a person who knows trucks will verify fitment before you pay.