Complete Jeep Grand Cherokee Bulb Size Chart 1993–2025 for Every Generation
Last Updated on 2025-11-30
Jeep Grand Cherokee lighting game plan
If you own a Grand Cherokee, sooner or later, you land in the same place as everyone else: standing in front of the truck, hood up, thinking, “ok, what bulb goes where?” Getting the Jeep Grand Cherokee bulb size right is boring on paper and insanely valuable in real life. Wrong size means wasted money, returns, or worse, driving around with one dim eye like your SUV is tired of life.
I like to treat lighting like a small, high-leverage project. You invest a bit of time into understanding your Jeep Grand Cherokee bulb size, pick parts that match your dream outcome (better vision, cleaner look, maybe fewer police chats), and then you execute once. Do it cleanly and you boost safety, resale value, and driving comfort in one shot.
This guide walks through every generation from 1993 to 2025, highlights the main bulb families, and gives you practical notes on where things usually go wrong. Trims, options, and LED packages exist, so think of this as a high-probability roadmap, not a sacred tablet. When something looks different behind your headlight dust cap, you double-check your specific VIN, not rage at the universe.
Quick overview of Jeep Grand Cherokee bulb size families
Before diving generation by generation, it helps to see the recurring “greatest hits” you’ll meet over and over. Most exterior bulbs on a Grand Cherokee come from a small club of codes. Understanding these makes every Jeep Grand Cherokee bulb size chart feel more intuitive instead of cryptic.
Headlights on older models use dual-filament 9004, then move into separate high and low beams like 9005 (high) and 9006 (low), and later H-series like H11. Higher trims add HID capsules like D1S and D3S. Fog lights bounce between H3, H10/9145, and later 2504 and H11.
Turn, brake, and reverse lights lean heavily on the 315x and 744x families: 3157, 3156, 7440, and 7443. Interior, plate, and marker lamps mostly revolve around small wedges like 194/168 and festoons like 578 (41 mm).
Once you see these patterns, every Jeep Grand Cherokee bulb size table stops feeling random. You start spotting where you can upgrade to LED, where you’ll need CANBUS-friendly options, and where there is zero point trying to swap a sealed LED module for a “bulb” that doesn’t exist.
First generation ZJ 1993 1998
The OG ZJ is simple, which is nice. One dual-filament headlight bulb handles high and low beams, and most of the rear uses 3157-style bulbs. Wiring is getting old on these rigs, so think about heat and load when you upgrade.
Here is a practical exterior and key interior Jeep Grand Cherokee bulb size overview for 1993–1998 ZJ models:
| Position | Years | Bulb type | Notes |
| Headlight high/low (dual) | 1993–1998 | 9004 | Single bulb handles both beams, upgrade to LED carefully to avoid glare. |
| Front fog light | 1993–1998 (if equipped) | H3 | Small capsule in the bumper fogs. |
| Front turn/parking | 1993–1998 | 3157 | Shared turn and park function, LED upgrades often need resistors. |
| Front side marker | 1993–1998 | 194 | Small wedge in the corner of the lens. |
| Rear brake/tail | 1993–1998 | 3157 | Two-filament bulb, common failure point on high-mileage trucks. |
| Rear turn | 1993–1998 | 3157 | Often shared with brake/tail depending on market. |
| Reverse light | 1993–1998 | 3156 | One per side, LED here gives a big visibility bonus. |
| Rear side marker | 1993–1998 | 194 | Same wedge style as front markers. |
| High-mount stop (third brake) | 1993–1998 | 921 | Check socket condition; they get crusty with age. |
| License plate | 1993–1998 | 168 / 194 | Wedge bulbs, often mismatch left vs right from previous owners. |
| Front dome/map | 1993–1998 | 194 | Simple wedge; LED here makes the cabin feel far less 90s. |
| Rear dome/cargo | 1993–1998 | 578 | 41 mm festoon above the cargo area. |
For this generation, the biggest value move is upgrading the 9004 headlights and the 3156 reverse bulbs. That alone changes night driving from “I hope there is no deer” to something much closer to your dream outcome without egregious amounts of money spent.
Second generation wj 1999 2004
The WJ steps into separate high and low beams, which is neat because you can tune output and color a bit more. Most brake, tail, and turn functions live in 3157 bulbs, so once you buy a pack, you cover several positions.
| Position | Years | Bulb type | Notes |
| Low beam headlight | 1999–2004 | 9006 | Projector low beam on many trims, responds well to quality halogen or proper LED. |
| High beam headlight | 1999–2004 | 9005 | Independent high beam for better long-range punch. |
| Front fog light | 1999–2004 | 9145 | Often labeled H10/9145, check the housing stamp. |
| Front turn/parking | 1999–2004 | 3157 | Combined function; amber LEDs here need CANBUS-friendly design. |
| Front side marker | 1999–2004 | 194 | Small corner marker in the headlamp assembly. |
| Rear brake/tail | 1999–2004 | 3157 | Shared with rear turn on some regions, check lens color. |
| Rear turn | 1999–2004 | 3157 | One bulb per side; flasher speed changes with LED unless you fix load. |
| Reverse light | 1999–2004 | 3157 | Another high-value spot for a bright LED. |
| High-mount stop | 1999–2004 | 921 | Often ignored until it fails inspection. |
| License plate | 1999–2004 | 168 / 194 | Wedge style like earlier models. |
| Interior map/dome | 1999–2004 | 194 | Most cabin courtesy lights share this size. |
| Cargo dome | 1999–2004 | 578 | Festoon over the rear cargo area. |
When you plan a WJ lighting refresh, bundling a set of 9006 LED low beams with quality 3157 LEDs creates a nice value discrepancy between what you spend and the upgrade you feel every night.
Third generation wk 2005 2010
The WK generation leans more into H11/H8/H9 style bulbs and starts flirting with HID options on some trims. The good news: the Jeep Grand Cherokee bulb size lineup stays mostly consistent across these years, so you can plan in batches.
Fourth generation wk2 2011 2021
Now things get more interesting. The WK2 covers a long span, gets mid-cycle updates, and mixes halogen, HID, and factory LED elements. The Jeep Grand Cherokee bulb size layout is still logical, though, especially if you break it into early (2011–2013), facelift (2014–2018), and late (2019–2021) phases.
Here is a condensed but useful breakdown that matches the common charts owners use when they upgrade.
| Position | Years | Bulb type | Notes |
| Low beam headlight | 2011–2013 | H11 / D1S | Halogen H11 on base trims, HID D1S on higher trims. |
| High beam headlight | 2011–2013 | 9005 | Separate reflector high beam. |
| Fog light | 2011–2013 | 2504 | PSX24W style capsule in the lower fascia. |
| Low beam headlight | 2014–2018 | D3S / H11 | D3S HID for projectors, H11 for halogen setups. |
| High beam headlight | 2014–2018 | 9005 | Works as both high beam and sometimes DRL on halogen setups. |
| Fog light | 2014–2018 | H11 | Round fog in the bumper, easy LED win. |
| Low beam headlight | 2019–2021 | H11 / D3S | Carry-over logic: halogen or HID by trim. |
| Fog light | 2019–2021 | H11 | Many owners go LED here first because installation is quick. |
| Rear brake/tail | 2011–2021 | 3157 / 7443 | Charts usually list both, depending on socket style. |
| Rear turn | 2011–2021 | 3157 / 7440 | Amber 7440 often used where the lens is clear. |
| Reverse light | 2011–2021 | 7440 / 921 | Many bulb finders list both 7440/7443 and T15/921. |
| DRL | 2011–2021 | 3157 / 7443 | Shared position with front turn on several trims. |
| License plate | 2011–2021 | 194 | Simple wedge again, easy LED upgrade. |
| Interior dome/map | 2011–2021 | 194 / 921 | Some trims use 194 in the front and 921 in the rear dome. |
With WK2, the highest value moves usually sit in low beams, fogs, and reverse lights. Choose bulbs with a solid warranty and a clear lumen rating; this is where guarantees and realistic expectations matter more than flashy marketing photos.
Fifth generation wk carryover and wl 2022 2025
Starting in 2022, the story splits. Jeep has been keeping the “old” Grand Cherokee WK alongside the new WL generation for a while. The old-body 2022 WK basically uses the same Jeep Grand Cherokee bulb size options as the late WK2 list above. The new WL leans hard into factory LED modules for headlights, so there is less you can swap at the bulb level up front and more action in tails, turns, and interior.
| Position | Body/years | Bulb type | Notes |
| Low/high headlight | 2022 WK carryover | H11 / D3S | Same logic as 2019–2021: halogen or HID depending on trim. |
| Fog light | 2022 WK carryover | H11 | Direct swap with previous WK2 bulb. |
| Rear brake/tail | 2022–2025 WL | 3157 / 7443 | Most bulb charts show 3156/3157 and 7440/7443 families here. |
| Rear turn | 2022–2025 WL | 3157 | Some trims use dedicated amber sections, but same socket family. |
| Reverse light | 2022–2025 WL | 7443 | Often listed simply as 7440/7443 in bulb finders. |
| DRL | 2022–2025 WL | 3157 / 7443 | Shared function with front turn on several trims. |
| License plate | 2022–2025 WL | 194 | Still the same familiar little wedge. |
| Interior lights | 2022–2025 WL | 194 / 921 | Map, dome, and cargo usually mix these two sizes. |
Headlights on many WL models are sealed LED assemblies. If your manual shows no replaceable bulb code for the headlamp, you are looking at a full housing swap, not a standard Jeep Grand Cherokee bulb size upgrade. That can grate on your belief system, but it is how many modern SUVs are built.
Common lighting problems and easy wins
Across all generations, a few patterns repeat. Front turn signals hyper-flash after people drop in low-quality LEDs with no load management. Reverse lights stay embarrassingly dim because nobody wants to climb into the hatch to swap them. Fog lights fill with moisture, cook cheap bulbs, and then the owner decides the Jeep Grand Cherokee bulb size data is wrong instead of noticing a cracked seal.
Fixing these is less about memorizing every table and more about having a simple plan. I like to start with the positions that hit safety and comfort hardest: low beams, fogs, and reverse. Those are the spots where your dream outcome of “I can actually see and be seen” becomes real.
Corrosion in tail light sockets is another classic, especially on older ZJ and WJ trucks. If you keep blowing 3157s, the value play is to inspect and clean or replace the socket while you are already in there. Bulb size can be perfect and still fail if the contact surface looks like a science experiment.
How to pick LEDs without regrets
LEDs can be a bonus or a niche slap, depending on how you choose them. The Jeep Grand Cherokee bulb size gives you the mechanical fit. The rest is a game of beam pattern, heat management, and electronics.
- Match the base exactly (H11 vs H9 vs 9005), no improvising.
- Look for a clear lumen rating and a real warranty, not hype.
- For signals and DRL, prefer CANBUS-ready options with built-in resistors.
- Avoid absurd color temps in headlights; 5000–6500K is sane.
For headlights, good LEDs keep the hotspot in the reflector or projector where the original filament sat. Cheap ones spray light everywhere and turn you into “that guy” on back roads. For brake and turn bulbs (3157, 7443, 7440), you want instant-on response, strong contrast, and no error messages. That gives you real value instead of a cosmetic mod with a downside.
Step-by-step bulb replacement basics
Different generations have different access points, yet the rhythm stays similar. You remove a trim panel or dust cap, twist the socket, swap the bulb, and then test before reassembling. The boring part is where you avoid breaking plastic that has been heat-cycled for twenty years.
Front headlights on ZJ and WJ often require a bit of finesse with retaining clips. WK and WK2 models use plastic pins and push-clips in the wheel liner so you can reach fogs and some headlight backs. WL interior lights lean heavily on pry-off lenses; a plastic trim tool is your best friend here if you want to avoid marks.
The crucial psychological trick is to test everything before you button it up. Turn on parking lights, low beams, high beams, hazards, reverse, and brakes while the housings are still accessible. If something fails, you fix polarity, reseat the bulb, or address a blown fuse instantly instead of tearing everything apart twice. That tiny bit of urgency saves you time and keeps your mood stable.
When diy is unsafe or no bueno
There are moments where doing it yourself starts to erode value instead of creating it. Swapping a normal H11 or 3157 bulb is fair game for most owners. Digging into HID systems, headlight levelling modules, or sealed LED assemblies can cross the line fast.
If your Jeep relies on D1S or D3S HIDs and you see moisture inside the housing, wiring damage, or ballast errors, paying a competent shop can prevent egregious amounts of money disappearing into trial-and-error. Same story with WL LED headlamp assemblies. Once you are unbolting the entire unit and dealing with body-colored trim, one slip can cost far more than the labor charge.
The other red flag is airbag or advanced driver-assist hardware mounted near the headlamp brackets. If your manual throws warnings about calibration after removing a headlight, you treat that seriously. You can still know your Jeep Grand Cherokee bulb size, buy your own parts for better pricing, and then hand them to a shop with a clear “install these, please” request.
Jeep Grand Cherokee bulb size FAQ
How do I quickly find my Jeep Grand Cherokee bulb size without digging through forums?
The fastest path is to combine three sources: your owner’s manual, a reputable online bulb size chart, and a visual check of the socket. That gives you a triple guarantee that the code you order (H11, 9005, 3157, 7443, 194, and so on) matches what is actually in your housing.
Why do some charts show multiple bulb options for the same position?
Because Jeep mixed trims, packages, and regional specs. A front turn signal might be listed as both 3157 and 7443. That does not mean the bulb size is random. It means different sockets were used across the production run. Matching the base and locating pin pattern on your own Jeep resolves the ambiguity.
Can I swap a 9005 where a 9006 or H11 is listed?
No, that move can fry wiring or create dangerous glare. 9005, 9006, and H11 may look similar on a casual glance, but their bases, wattages, and beam patterns differ. Treat the Jeep Grand Cherokee bulb size codes as specific, not “close enough.”
Will LED bulbs always trigger errors on my Grand Cherokee?
Not always. Older ZJ and WJ trucks are pretty tolerant. Later, WK2 and WL models watch the current more carefully. If you run into hyper-flash or warnings, look for CANBUS-ready LEDs or a dedicated resistor harness rated for the bulb type you are changing.
Is upgrading reverse lights worth the effort?
Absolutely. Reverse lights are one of the highest-leverage spots on the whole vehicle. Swapping a stock 3156 or 7440 for a strong LED version makes backing into tight spaces, alleys, or dark driveways far less stressful. You will feel the value every time you shift into R.
Do I need to replace bulbs in pairs?
For headlights and brake lights, yes, that is smart. Bulbs age together. Replacing one H11 or 9006 usually means the other is not far behind. Doing them as a pair keeps color and brightness matched and saves you from repeating the same job a week later.
Can I mix LED headlights with halogen fogs or the other way around?
You can, but it can look odd. A bright white LED headlight next to a warm halogen fog can create a weird value discrepancy in how the front end looks. If you care about aesthetics, plan upgrades in sets: both low beams, then fogs, then signals.
Why does my new LED work in one direction but not the other?
Many LED replacement bulbs are polarity-sensitive. If a 194, 921, or 3157 LED stays dark, pull it, rotate it 180 degrees in the socket, and reinstall. That tiny twist fixes a huge percentage of “it is dead” complaints.
What is the safest strategy if I am totally new to this?
Start small. Swap the license plate and interior 194 bulbs first. Then move to reverse lights, then fogs, then finally low beams. Each stage builds your confidence with your Jeep Grand Cherokee bulb size layout, and you can bail out to a shop at any step without feeling like you ruined anything.
Can changing bulbs void my warranty?
Using quality, road-legal bulbs that match the correct size normally stays within warranty comfort zones. Problems appear when people hack wiring, bypass fuses, or install wild output levels that stress housings. Keep your upgrades reasonable, and you get the bonus of better lighting without picking a fight with the dealer.
If you treat this guide as your starting map, your next bulb order becomes way simpler. You know the Jeep Grand Cherokee bulb size codes that actually matter, you know where LEDs give the biggest payoff, and you know when a job is gonna be DIY fun and when it is smarter to say “gimme my money’s worth” at a competent shop instead.
