Staff Answer
Nov 02, 2026 - 06:09 AM
For a 2018 Wrangler Sahara, the correct choice depends on whether it is a newer JL generation or an older JK generation, as 2018 was a crossover transition year where both were produced.
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BX1139: Choose this if the customer has a 2018 Jeep Wrangler JL (including Sahara trims built on the JL body style, with factory bumpers/ACC).
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BX1126: Choose this if the customer has a 2018 Jeep Wrangler JK (the older body style with standard bumpers).
VIN Check: The fastest definitive way is to look at the 10th digit of the Vehicle Identification Number (VIN) on the driver’s side dashboard or door sticker:
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J = 2018 (JK generation, if it falls under early production)
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K = 2019 (though 2018 JL models use standard decoding, the model year code or door jamb label will explicitly state the vehicle build type/model series as JL or JK).
