Jeep JK Wrangler 3.8L 6 Cylinder Engines

Make Sure It Fits Your Vehicle

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Crown Automotive Exhaust Manifolds

Crown Automotive Exhaust Manifolds

From $64.79

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Crown Automotive Engine Mounts

Crown Automotive Engine Mount
5.0 5.0 (2)

From $4.49

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Crown Automotive Engine Oil Pan Gasket

Crown Automotive Engine Oil Pan Gasket

From $2.99

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Omix-ADA Engine Gasket Sets

Omix-Ada Engine Gasket Set

From $31.99

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Crown Automotive Valve Cover Gasket

Crown Automotive Valve Cover Gasket
4.0 4.0 (1)

From $1.99

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Omix-ADA Valve Cover Gasket Kits

Omix-Ada Valve Cover Gasket

From $8.99

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Crown Automotive Engine Piston Ring Set

Crown Automotive Engine Piston Ring Set

From $14.99

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Crown Automotive Head Gasket

Crown Automotive Head Gasket

From $10.79

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Crown Automotive Clutch Pilot Bearings

Crown Automotive Pilot Bearing

From $3.99

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Crown Automotive Intake Manifold Gaskets

Crown Automotive Intake Manifold Gasket

From $1.99

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Omix-ADA Main Engine Bearing Sets

Omix-Ada Main Engine Bearing Set

From $64.99

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Crown Automotive Engine Oil Pump Repair Kit

Crown Automotive Engine Oil Pump Repair Kit

From $114.99

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Crown Automotive Engine Upper Gasket Set

Crown Automotive Engine Upper Gasket Set

From $6.49

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Crown Automotive Crankshaft Seal

Crown Automotive Crankshaft Seal

From $1.99

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Omix-ADA Intake Valves

Omix-Ada Intake Valve

From $7.99

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Omix-ADA Camshaft Gear/Sprockets

Omix-Ada Camshaft Gear/Sprocket

From $17.99

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Omix-ADA Head Gaskets

Omix-Ada Head Gasket

From $12.99

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Omix-ADA Crankshaft Pulley And Dampers

Omix-Ada Crankshaft Pulley And Damper

From $9.99

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Crown Automotive Connecting Rod Bearing Set

Crown Automotive Connecting Rod Bearing Set

From $21.99

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Omix-ADA Intake Manifold Gaskets

Omix-Ada Intake Manifold Gasket

From $10.99

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Omix-ADA Crankshaft Oil Seals

Omix-Ada Crankshaft Oil Seal

From $0.99

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Omix-ADA Oil Filters

Omix-Ada Oil Filter

From $5.99

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Crown Automotive Oil Pan Drain Plug

Crown Automotive Oil Pan Drain Plug

From $2.69

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Omix-ADA Oil Pan Drain Plugs

Omix-Ada Oil Pan Drain Plug

From $1.99

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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!<

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Omix-ADA Engine Gasket Set - 17440.13

$320.99

Omix-ADA Engine Gasket Set - 17440.13
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Omix-ADA Upper Engine Gasket Set - 17442.14

$320.99

Omix-ADA Upper Engine Gasket Set - 17442.14
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Omix-ADA Main Bearing Set - 17465.56

$302.99

Omix-ADA Main Bearing Set - 17465.56
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Omix-ADA Main Bearing Set - 17465.58

$301.99

Omix-ADA Main Bearing Set - 17465.58
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Omix-ADA Main Bearing Set - 17465.57

$287.99

Omix-ADA Main Bearing Set - 17465.57
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Omix-ADA Main Bearing Set - 17465.59

$287.99

Omix-ADA Main Bearing Set - 17465.59
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Omix-ADA Engine Gasket Set - 17440.14

$271.99

Omix-ADA Engine Gasket Set - 17440.14
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Omix-ADA Lower Engine Gasket Set - 17442.17

$261.99

Omix-ADA Lower Engine Gasket Set - 17442.17
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Omix-ADA Piston Ring Set - 17430.48

$258.99

Omix-ADA Piston Ring Set - 17430.48
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Omix-ADA Main Bearing Set - 17465.49

$256.99

Omix-ADA Main Bearing Set - 17465.49
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Omix-ADA Main Bearing Set - 17465.52

$256.99

Omix-ADA Main Bearing Set - 17465.52
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Omix-ADA Upper Engine Gasket Set - 17441.13

$248.99

Omix-ADA Upper Engine Gasket Set - 17441.13
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Omix-ADA Engine Gasket Set - 17440.15

$232.99

Omix-ADA Engine Gasket Set - 17440.15
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Crown Automotive Exhaust Manifold (Natural) - 53006244

$190.99

Crown Automotive Exhaust Manifold (Natural) - 53006244
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Crown Automotive Exhaust Manifold Kit - 4883385K

$166.99

Crown Automotive Exhaust Manifold Kit - 4883385K
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Crown Automotive Exhaust Manifold Kit - 3237427K

$182.99

Crown Automotive Exhaust Manifold Kit - 3237427K
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Omix-ADA Piston Ring Set - 17430.46

$222.99

Omix-ADA Piston Ring Set - 17430.46
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Omix-ADA Piston Ring Set - 17430.47

$222.99

Omix-ADA Piston Ring Set - 17430.47
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Omix-ADA Piston Ring Set - 17430.49

$222.99

Omix-ADA Piston Ring Set - 17430.49
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Omix-ADA Lower Gasket Kit - 17442.10

$219.99

Omix-ADA Lower Gasket Kit - 17442.1
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Crown Automotive Exhaust Manifold (Natural) - J3237427

$174.99

Crown Automotive Exhaust Manifold (Natural) - J3237427
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Crown Automotive Exhaust Manifold (Natural) - 53008860K

$141.97

Crown Automotive Exhaust Manifold (Natural) - 53008860K
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Omix-ADA Piston Ring Set - 17430.56

$193.99

Omix-ADA Piston Ring Set - 17430.56
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Crown Automotive Piston Ring Set - 68046210AB

$155.99

Crown Automotive Piston Ring Set - 68046210AB