Precision Auto Picks › Parts reference › 55136684AA
Jeep Grand Cherokee WJ Liftgate Glass Hinge Set — 55136684 & 55136685
Rear liftgate flip-up glass hinge set (LH + RH) · 1999–2004 Jeep Grand Cherokee (WJ) · Mopar 55136684 / 55136685 · bolt-on, no programming
These are the two hinges that carry the flip-up rear glass on the Jeep Grand Cherokee WJ liftgate, sold as a left + right set with mounting hardware. The Mopar numbers are 55136684 and 55136685 (one per side), and they fit the 1999–2004 WJ only — the 2005+ WK uses a different hinge. When the hinge bodies crack or the mounts corrode, the glass won’t stay up, rattles, or works loose. This page covers identification, fitment, and why they are replaced as a pair.
What it is
The WJ Grand Cherokee’s rear liftgate has a flip-up rear glass that opens independently of the gate. That glass is carried at the top by two hinges — one per side — and this is the LH + RH set of those hinges, with their mounting hardware and seals.
- It is a set of two. Both hinges age together, so they are replaced as a pair — that is the right unit of sale and repair.
- It is a bolt-on body repair. No programming and no electronics — the hinges mount mechanically to the top of the liftgate.
Identifying the part by number
| Number | What it is |
|---|---|
| 55136684 · 55136685 | The current Mopar part numbers for the WJ liftgate glass hinges — one per side (the left side is sometimes written 55136685LH). |
| 5019418AA · 5019419AA | The earlier numbers these supersede. A liftgate showing the older numbers takes the current 55136684 / 55136685 hinges. |
Both numbers belong to the same WJ set. If you are matching a single old hinge, carry the superseded 5019418AA / 5019419AA numbers into your search as well — they point to the same current part.
Fitment — WJ only, not the WK
1999–2004 Jeep Grand Cherokee — the WJ generation only. This is the gate that matters most on this part.
- The 2005-and-later WK Grand Cherokee uses a different hinge. The WK shares the search lane but is not the same part — confirm your Grand Cherokee is the 1999–2004 WJ before buying.
- It is the flip-up rear glass hinge, not a hinge cover, bolt, or Torx screw — see the buyer caution below.
Why they fail — and why a pair
The flip-up glass rides on these two top-of-liftgate hinges, and they live a hard life: opening cycles, sun, and road vibration crack the hinge bodies and corrode the mounts over the years.
Once one hinge lets go, the glass won’t stay up, rattles, or works loose. Because both hinges age together under the same conditions, replacing only one tends to leave the second to fail soon after — which is why they are sold and replaced as a left + right pair.
This is a mechanically self-evident wear pattern for a body hinge, confirmed by the failures these parts are bought to fix; it is not a bench-tested electronic claim.
How it is checked
This is body hardware, so the honest claim is a visual inspection — both hinges checked for cracks in the bodies and for corroded mounts — not a bench test. The hinges are photographed so you can see the condition of the actual set you are buying.
Buy the hinge set
We sell the inspected LH + RH set with its hardware, both hinges checked for cracks and corroded mounts and photographed so you see the actual pair before buying.
View the WJ glass hinge set on eBayNot sure your Grand Cherokee is the 1999–2004 WJ, or which numbers your old hinges show? Send a photo through our eBay store and we will confirm before you spend anything.
Common questions
- What is included in the set?
- Both hinges — the left and the right — that carry the flip-up rear glass on the Jeep Grand Cherokee WJ liftgate, with their mounting hardware and seals. The Mopar numbers are 55136684 and 55136685, one per side. They are sold as a pair because both age together and are replaced together.
- Will these hinges fit my Grand Cherokee?
- They fit the 1999-2004 Jeep Grand Cherokee — the WJ generation only. The 2005-and-later WK Grand Cherokee uses a different hinge and is not the same part, even though it shares the search lane. Confirm your Grand Cherokee is the 1999-2004 WJ before buying. The set also supersedes the earlier 5019418AA / 5019419AA numbers, so an older liftgate takes the current 55136684 / 55136685 hinges.
- Why do the WJ glass hinges fail, and why replace both?
- The flip-up glass rides on two top-of-liftgate hinges that take years of opening cycles, sun, and road vibration, which crack the hinge bodies and corrode the mounts. Once one lets go, the glass won't stay up, rattles, or works loose. Both hinges age together under the same conditions, so replacing just one usually leaves the second to fail soon after — which is why they are sold and replaced as a left + right pair.
- Is this the hinges, or the covers and bolts?
- This is the hinges themselves — the structural parts that carry the glass — sold as a left + right set. Watch out for cheaper listings of the plastic hinge covers or the bolts and Torx screws, which share the search terms but are different, lower-value parts. Confirm you are buying the hinge set, not the cover or hardware alone.
- Do the hinges need any programming or special tools?
- No. This is a bolt-on body repair with no electronics and no programming — the hinges mount mechanically to the top of the liftgate. Standard hand tools handle the job.
Written by William, owner of Precision Auto Picks — he pulls, tests, and ships every part himself. More about the shop ›