Jeep JK Wrangler 3.8L 6 Cylinder Engines

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    Crown Automotive Exhaust Manifolds

    Crown Automotive Exhaust Manifolds

    From $101.99

    Tax Paid

    Crown Automotive Engine Mounts

    Crown Automotive Engine Mount
    5.0 5.0 (1)

    From $11.99

    Tax Paid

    Crown Automotive Engine Oil Pan Gasket

    Crown Automotive Engine Oil Pan Gasket

    From $1.99

    Tax Paid

    Omix-ADA Engine Gasket Sets

    Omix-Ada Engine Gasket Set

    From $100.99

    Tax Paid

    Crown Automotive Valve Cover Gasket

    Crown Automotive Valve Cover Gasket
    4.0 4.0 (1)

    From $0.99

    Tax Paid

    Omix-ADA Valve Cover Gasket Kits

    Omix-Ada Valve Cover Gasket

    From $13.99

    Tax Paid

    Crown Automotive Engine Piston Ring Set

    Crown Automotive Engine Piston Ring Set

    From $102.99

    Tax Paid

    Crown Automotive Head Gasket

    Crown Automotive Head Gasket

    From $10.99

    Tax Paid

    Crown Automotive Clutch Pilot Bearings

    Crown Automotive Pilot Bearing

    From $16.99

    Tax Paid

    Crown Automotive Intake Manifold Gaskets

    Crown Automotive Intake Manifold Gasket

    From $1.99

    Tax Paid

    Omix-ADA Main Engine Bearing Sets

    Omix-Ada Main Engine Bearing Set

    From $110.99

    Tax Paid

    Crown Automotive Engine Oil Pump Repair Kit

    Crown Automotive Engine Oil Pump Repair Kit

    From $118.99

    Tax Paid

    Crown Automotive Engine Upper Gasket Set

    Crown Automotive Engine Upper Gasket Set

    From $10.99

    Tax Paid

    Crown Automotive Crankshaft Seal

    Crown Automotive Crankshaft Seal

    From $1.99

    Tax Paid

    Omix-ADA Intake Valves

    Omix-Ada Intake Valve

    From $10.99

    Tax Paid

    Omix-ADA Camshaft Gear/Sprockets

    Omix-Ada Camshaft Gear/Sprocket

    From $126.99

    Tax Paid

    Omix-ADA Head Gaskets

    Omix-Ada Head Gasket

    From $12.99

    Tax Paid

    Omix-ADA Crankshaft Pulley And Dampers

    Omix-Ada Crankshaft Pulley And Damper

    From $114.99

    Tax Paid

    Crown Automotive Connecting Rod Bearing Set

    Crown Automotive Connecting Rod Bearing Set

    From $26.99

    Tax Paid

    Omix-ADA Intake Manifold Gaskets

    Omix-Ada Intake Manifold Gasket

    From $11.99

    Tax Paid

    Omix-ADA Crankshaft Oil Seals

    Omix-Ada Crankshaft Oil Seal

    From $0.99

    Tax Paid

    Omix-ADA Oil Filters

    Omix-Ada Oil Filter

    From $10.99

    Tax Paid

    Crown Automotive Oil Pan Drain Plug

    Crown Automotive Oil Pan Drain Plug

    From $2.99

    Tax Paid

    Omix-ADA Oil Pan Drain Plugs

    Omix-Ada Oil Pan Drain Plug

    From $1.99

    Tax Paid

    Pushing your hard-core off-roading machine to its limits and living to brag about it is every jeeper's dream. Take your white-knuckle run too far, though, and you wind up with a grenading engine. You can keep your rig running at peak levels by swapping your existing Jeep JK engine parts for premium aftermarket and OEM replacements. 4WheelParts.com has everything your engine needs, from intake valves to cover gaskets, to conquer the wilderness. Our high-quality Jeep replacement engine parts come from the rugged brands you know and trust, such as Crown Automotive and Omix-ADA, to ensure they can handle your full-throttle jeeping adventures.

    Tough-As-Nails Engine Parts for Hard-Core Jeeping
    Just like you, keeping your Jeep Wrangler 3.8L 6 Cylinder engine properly maintained helps it work at optimal performance levels. Doing regular checkups and swapping out worn out parts in-between off-roading trips down gnarly, gumbo filled trails raises your chances of showing Mother Nature who's boss. To help you maintain your superiority over the trails, 4WheelParts.com carries the Jeep JK engine parts your baby needs to run at peak performance, like valve stem seals, timing chains and connecting rod bearing sets. Get the power to blow the doors off your trail buddies by upgrading your engine with new high-quality aftermarket and OEM parts today.

    Get the Best Prices on Your Must-Have Parts
    When you're looking for the finest crankshaft bearing set or cylinder head gasket for your 3.8L Jeep engine at the lowest prices, you don't need to look any further than 4WheelParts.com. Our 100% Price Match Guarantee means that we'll match any competitor's price on all our millions of parts. Just let us know up to 90-days after your purchase, and we'll refund you the difference. We also offer free shipping on all qualifying orders up to $75, so fill up your cart with those extras you've been eyeing. These are some of the ways we show our customers that their satisfaction is our number one priority. Order something today!<

    651 Products
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    Crown Automotive Front Exhaust Manifold (Natural) - 53010196

    $176.99

    • Fitment: Direct Fit
    • + View More Specs - View Less Specs

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    Free! Curbside & In-Store Pickup: Available within 3 to 5 business days 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Oil Filter - 68032204AB

    $17.99

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    Free! Curbside & In-Store Pickup: Available within 3 to 5 business days 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Exhaust Manifold (Natural) - 4666026AB

    $86.99

    • Fitment: Direct Fit
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    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Manifold Kit - 8124999K

    $167.99

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  • Crown Automotive Valve Cover Gasket - 53020758AC

    $25.99

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    Free! Curbside & In-Store Pickup: Available within 3 to 5 business days 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Oil Pan Gasket - 53007568

    $26.99

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Crankshaft Retainer/Seal Kit - 68031388AA

    $45.99

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  • Crown Automotive Front Motor Mount - 52040267

    $12.99

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    Free! Curbside & In-Store Pickup: Available next business day if placed before 3pm 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Exhaust Manifold (Natural) - 4666024AD

    $81.99

    • Fitment: Direct Fit
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    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Omix-ADA Valve Cover Gasket Set - 17447.26

    $79.99

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  • Crown Automotive Exhaust Manifold Kit - 4883385K

    $210.99

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive T18 4 Speed Transmission Gasket Kit - J0923302

    $10.99

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  • Omix-ADA Valve Cover Gasket - 17477.14

    $14.99

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Front Motor Mount - 52019278

    $18.99

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    Free! Curbside & In-Store Pickup: Available within 3 to 5 business days 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Engine Mount - J1371313

    $26.99

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Exhaust Manifold - 4883385

    $174.99

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Engine Mount - J1369788

    $24.99

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Omix-ADA Aluminum Valve Cover Gasket Kit - 17447.05

    $13.99

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    Free! Curbside & In-Store Pickup: Available next business day if placed before 3pm 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Motor Mount Kit - 3186107K

    $43.99

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    Free! Curbside & In-Store Pickup: Available within 3 to 5 business days 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Crankshaft Rear Main Seal Kit - 4778126

    $9.99

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  • Crown Automotive Valve Cover Gasket - J3241731

    $16.99

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    Free! Curbside & In-Store Pickup: Available next business day if placed before 3pm 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Clutch Pilot Bearing - 53009180AB

    $16.99

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Oil Filter - 68031597AB

    $19.99

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 View Other Stores

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  • Crown Automotive Oil Pan Gasket - 4713021

    $31.99

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 View Other Stores

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