Mopar 68079412AE is the current water pump for the JK's 3.6 Pentastar. On this engine the pump sits behind the timing cover and is driven by the timing chain, not the serpentine belt, so a failing pump is a bigger job than on older Jeeps. That makes it worth confirming the pump is really the leak before you commit.
Fitment
2012–2017 Wrangler and 2018 Wrangler JK with the 3.6 Pentastar, per Mopar dealer catalogs. Not the 2007–2011 3.8. Always confirm the number on your old part or run your VIN at a Mopar parts counter before you order.
Common failure symptoms
- Coolant loss with residue around the front of the engine below the timing cover
- Coolant smell after a drive with no obvious external drip
- Overheating or a temperature gauge that climbs under load
- Milky oil is a warning sign that coolant may be reaching the oil. Get it diagnosed before driving further
Cross-reference
| Brand | Part number | Notes | Source |
|---|---|---|---|
| Mopar | 68079412AE | Current. Replaces 68079412AB, AC, AD and RL079412AB. | source |
| Mopar (gasket) | 68087340AA | Water pump gasket listed as a related part. | source |
| US Motor Works | US6699 | Aftermarket pump listed for 2012–2017 Wrangler 3.6. | source |
Price check (October 22, 2026): Mopar's MSRP is $330, and JeepPartsDeal listed it at $218.54. Prices change; confirm before you buy.
Rebuild, repair or replace?
Pumps aren't rebuilt at home; you replace the assembly. Since it's driven inside the timing cover, labor is the big cost. Many owners replace the timing-area seals and gaskets while it's open. Before ordering, pressure-test the cooling system. The 3.6 has two other well-known leak points nearby: the thermostat housing and the oil cooler housing in the valley. Either can look like a pump leak from below. Use the coolant your Jeep already has: Mopar 10-year/150,000-mile OAT on 2013–2018 JKs.
Where to buy
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FAQ
Is the JK 3.6 water pump belt driven?
No. On the 3.6 Pentastar it's behind the timing cover. That's why labor is high.
What does 68079412AE replace?
68079412AB, AC, AD and RL079412AB.
Does it fit the JL?
No. The JL 3.6 uses the 4893941 series.
Related guides
Sources
- JeepPartsDeal: 68079412AE fitment and supersessions
- Mopar eStore: 68079412AE
- PartsGeek: aftermarket JK 3.6 pumps
Part numbers and fitment were checked against the sources above on October 22, 2026. Mopar supersedes numbers over time. If a newer letter suffix shows up, it generally replaces the one listed here. Back to the parts lookup.