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![J3239821 Drive Belt Idler Pulley for 1981-1989 Jeep Models [4.2L Engines]](https://www.jegs.com/images/mini_750/0/077/077-j3239821.jpg)
Vehicle Info NeededCROWN AUTOMOTIVEPART NUMBER: 077-J3239821
J3239821 Drive Belt Idler Pulley for 1981-1989 Jeep Models [4.2L Engines]
Color:
$4999
More than 10 available
Ships on Sep 14, 2026
Lowest Price GuaranteePulleys & Dampers
Drive Belt Idler Pulley1981-1989 Jeep Models 4.2L Engines See Fitment Tab for All Applications Sold Individually
The Crown Automotive J3239821 Drive Belt Idler Pulley is a direct-fit replacement designed for the applications listed. Drive Belt Idler Pulley for Jeep 1987-1989 YJ Wrangler, 1981-1986 CJ-5, CJ-7, CJ-8 w/ Serpentine Drive,1981-1986 SJ, J-Series w/ Serpentine Drive, all w/ 4.2L Engine, 6 groves.
Crown Automotive J3239821 Drive Belt Idler Pulley Features:
- Idler Pulley
- 6 Grooves
- For Models w/ 4.2L (6-258) Engine
- 3.95 in.
Replacement Engine Parts
Crown Automotive provides crucial engine components to keep your vehicle on the road. OEM-grade, high-quality parts can be tough to find sometimes, so check the Crown Automotive line-up for replacement parts that are a cut above the rest.
Part TypeDrive Belt Idler Pulley
Product LineCrown Automotive Engine Components
BrandCROWN AUTOMOTIVE
Package Height1.5
Package Width4.5
Package Length4.5
Weight1.3 PG
Part CategoryReplacement Parts
ColorBlack
Pulley TypeIdler
QuantitySold individually
Hardware IncludedYes
Part FitmentDirect Fit
Pulley StyleSerpentine
PositionN/A
UnderdriveNo
Pulley FinishBlack
Groove Quantity6
Idler Cover IncludedNo
Brackets IncludedNo
Outside Diameter3.950 in.
Pulley MaterialSteel
Vendor Part NumberJ3239821
Package Qty1
Package TypeEA
No Questions
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