Jeep Wrangler Block Heater Guide
2007–2026
Wranglers live outside by definition. The Pentastar V6 has a proper heater fitment, and soft-top owners in real cold add a battery blanket — cabin cold soak is brutal on batteries.
Factory availability
Factory option in Canada
Cord location
Factory cord usually near the front bumper, driver's side.
Jeep Wranglerengines & block heater part numbers
Engine list built from Natural Resources Canada model-year data; part numbers cross-referenced against the Zerostart / Phillips & Temro and Kat's application guides. Always confirm displacement and model year before ordering.
| Engine | Years | Zerostart kit | Cord | Kat's heater | Install location |
|---|---|---|---|---|---|
| 3.8L 6-cyl | 2007–2011 | — | — | 11486+ cord 28400 | — |
| 3.6L 6-cyl | 2012–2026 | 3100128 | 3600120 | 11814+ cord 28814 | RR(N/A N/A position) |
| 2L 4-cyl | 2019–2026 | — | — | 11812+ cord 28812 | — |
| 3L 6-cyl diesel | 2020–2023 | No aftermarket listing — use the genuine Jeep dealer kit | |||
| 6.4L 8-cyl | 2022–2026 | No aftermarket listing — use the genuine Jeep dealer kit | |||
Zerostart part numbers: 31/35-prefix = heater kit, 36-prefix = detachable cordset. Kat's: 11xxx = heater element, 28xxx = cordset, 24xxx = pad heater. Install location codes are from the manufacturer's guide (LF = left front of block, RR = right rear, etc.); "position" is the element's clock orientation during install.
First: check whether you already have one
In Canada, block heaters are frequently installed at the port, the dealer, or by a previous owner — and then forgotten. Look for a two- or three-prong plug on a black cord near the grille, bumper, or tow hooks, sometimes still zip-tied from the factory. If you find one, test it before winter with our 5-minute multimeter test.
If you need one installed
A frost plug (cartridge) block heater for the Jeep Wrangler typically runs $40–$120 CAD for the part, plus shop installation. See installation costs in your city — and book in October, before the first cold snap fills every shop calendar in the Prairies.
FAQ
Does the Jeep Wrangler come with a block heater?
Factory option in Canada. Check behind the grille for a coiled cord before buying anything — many Canadian-market vehicles have a heater installed that the owner never knew about.
What block heater fits a Jeep Wrangler?
The recommended setup is a frost plug (cartridge) block heater (typically 400 W). Wranglers live outside by definition. The Pentastar V6 has a proper heater fitment, and soft-top owners in real cold add a battery blanket — cabin cold soak is brutal on batteries.
What is the block heater part number for a Jeep Wrangler?
3.8L 6-cyl: Kat's heater 11486 with cord 28400; 3.6L 6-cyl: Zerostart kit 3100128 with cord 3600120 (Kat's 11814); 2L 4-cyl: Kat's heater 11812 with cord 28812. Confirm displacement and model year against the fitment table before ordering.
Where is the block heater cord on a Jeep Wrangler?
Factory cord usually near the front bumper, driver's side.
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