Braking · RAM heavy duty
RAM 2500 / 3500 ABS Hydraulic Control Unit
National backorder, no ETA, and a truck that can't be dispatched with an ABS fault. Here is what is on record for the pickup and 3500 cab-chassis hydraulic control unit — the factory chain, the platform boundary, and what has already been ruled out.
What the truck is doing
ABS and stability faults leave the truck unsafe to dispatch. It sits until the hydraulic control unit is available, and the recorded constraint is national backorder with no ETA.
What the factory part looks like right now
For the pickup and 3500 cab-chassis platform there is a single documented factory supersession: 68143491AA is superseded by 68143491AB. That is the whole chain for this unit.
The platform boundary that costs people a cycle
Pickup and 3500 cab chassis run the 68143491 chain. The 4500 and 5500 chassis cab run a different chain entirely, 68195569. The two do not interchange, and a chassis-cab truck fitted with a pickup unit will not function.
Establish the platform from the VIN, not from how the truck looks.
Hydraulic unit or control module?
The hydraulic control unit and the ABS control module are separate components with separate supersession chains. Replacing the module does not resolve a hydraulic fault, and ordering the wrong half costs another backorder cycle.
What else is on record
Independent rebuild or exchange
Send-in rebuild and exchange programs return the truck to service while the OEM unit remains on backorder.
A service, not a part: no assembly part number is issued.
No new aftermarket unit exists
No new aftermarket equivalent hydraulic control unit was identified for these platforms. Independent supply is rebuild and exchange only.
Which way fleets go
Fleets holding downtime cost move to exchange rebuild once the OEM unit shows no ETA; warranty-sensitive operators stay on the Mopar chain and absorb the wait.
Before ordering or installing, confirm
Confirm before you commit
The platform, from the VIN
Pickup and 3500 cab chassis only. The 4500 / 5500 unit is a different part.
Whether the fault is hydraulic or electronic
Diagnose module versus hydraulic unit before committing to either chain.
Scan-tool access, before the part arrives
Programming and an ABS bleed are required after replacement, and without them the truck is not roadworthy even with the correct part fitted. Remote operators should confirm local capability first.
What this record does not cover
Not covered by the record
The programming and bleed steps are recorded as a requirement, not as a documented procedure — the record does not say which tool, which routine, or how long. Recall 24V-896 is not part of the imported record, so nothing here speaks to recall coverage or eligibility.
Check this against your vehicle
Start with the number you have and we'll show what's on record for it, including anything documented as an alternative.
This page explains the documented repair paths. The investigation helps determine which of those best matches your specific vehicle and circumstances.
Keep going
- RAM 4500/5500 ABS unitThe chassis-cab hydraulic control unit runs the 68195569 chain and never crosses with the pickup unit. Here is what that means before you order.
- RAM ABS moduleThe ABS control module supersedes AA to AB to AC, and it is a different component from the hydraulic unit. Replacing one will not fix the other.
- RAM ABS part numbers68143491, 68195569 and 68347098 split by platform — plus the three Mopar numbers whose application has not been established.
- GM 10L valve bodyThe GM 10-speed valve body on backorder: the Gen 1 to Gen 3 factory chain, the calibration split, the in-place repair path, and what has already been ruled out.
Everything on this page comes from a documented investigation record. Where the record is silent, the page says so rather than filling the gap. Always confirm fitment, application, and any programming requirement for your specific vehicle before installing.