3.6L JK Fan Conversion Harness

Vendor fitment: 2007-2018 JK Wrangler. Other fitment from the vendor source. Confirm final options and fitment on the vendor page before purchase.

AEV's 3.6L Fan Conversion Wiring Harness allows for the addition of the 2012+ Jeep 3.6L cooling fan in the 2007-11 JK Wrangler, with or without a HEMI V8. Older 3.8L JK fans are starting to wear out, which gradually decreases cooling performance without the user knowing it and can cause a heavy, modified JK to easily overheat in hot weather. In 2012, with the addition of the 3.6L Pentastar V6 engine, the fan output was nearly doubled due to the aluminum head design which essentially has the exhaust manifold built-in and cooled with engine coolant. Surprisingly, although it has a smaller displacement, the 3.6L Pentastar V6 engine has greater cooling requirements than a 6.4L Hemi V8! Adding.

SKU

30406031AA

Price

$129

Role

review candidate

Preview on my Jeep Vendor/source

Fitment and build notes

Vendor catalog record promoted for browsing. Final fitment, install dependencies, and shopper selection still require review before checkout.

A source-backed fitment match is enough to shortlist the part. Before purchase, still confirm the exact vehicle setup, variant, install parts, and whether the customer is buying for DIY install or a shop quote.

Readiness

Fitment statusUseful for a shortlist, but exact vehicle setup, dependencies, or purchase path still need review.Needs vehicle setup check

Evidence levelNeeds source collection and claim-level review before it should be treated as recommendation-ready.Evidence review needed

Install docsProduct-specific install/support links are captured. Confirm exact SKU/application before final approval.Captured

Product imageProduct image available

Purchase pathUse for build planning or a shop quote

Visual prioritymedium

Source-backed facts

Fact summary

Models: JK Wrangler; Years: 2007-2018; Source: manufacturer_website; Captured: 2026-04-24