Jeep TJ Wrangler 4.0L 6 Cylinder Engine Parts

Make Sure It Fits Your Vehicle

Factory style replacement 4.0L 6 cylinder engine parts for your 1997-06 TJ Wrangler, Rubicon and Unlimited. You pride yourself on your Jeep's performance, and you love to make modifications to improve it. You only use high-quality parts to beef up your ride, so when you want to purchase new Jeep 4.0 engine parts, you know where to go. 4 Wheel Parts has a great selection of aftermarket parts from top brands, and we have the lowest prices available.

Great Selection
Your dream is to have the ultimate off-road machine. Each month, you set aside money for vehicle modifications so you can achieve your dream, and beefing up your engine is at the top of your list.

4 Wheel Parts has quality pieces from top brands like Crown Automotive. From studs, bolts and rods to gaskets, grommets and valve covers, we have the parts you need. Each piece is crafted from tough steel to ensure that these parts can handle the rough off-road lifestyle.

Low Prices
Purchasing a Jeep 4.0 lifter kit can completely drain your budget.4 Wheel Parts is dedicated to providing you with the best price possible. We even offer a price match guarantee to ensure that you never pay too much for a part you purchase from us. If you buy an engine part from us and then find it for a better price, we will gladly refund you the difference.

Quality Service
At 4 Wheel Parts, we pride ourselves on providing you with the best service possible. We know that modifying your off-road vehicle can be confusing, so we provide a labeled engine parts diagram to make finding the right piece easier. When you need recommendations or advice, feel free to ask any expert on our team. With more than 50 years of experience under our belt, we have the expertise to help you complete your project, and we are more than happy to help. Shop with us today to find the parts you need to get back to off-roading.

165 Product Groups

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Crown Automotive Valve Covers

From $112.99

Valve Cover
Plastic
Grommets sold separately
California Residents: WARNING

From $112.99

4.0 4.0 (4)

Omix-ADA Valve Covers

From $136.99

Valve Cover
California Residents: WARNING

From $136.99

5.0 5.0 (2)

Crown Automotive Valve Cover Gasket

From $10.99

Valve Cover Gasket
California Residents: WARNING

From $10.99

4.0 4.0 (3)

Omix-ADA Engine Valve Cover Gaskets

From $10.99

Valve Cover Gasket
California Residents: WARNING

From $10.99

Omix-ADA Valve Cover Gasket Kits

From $14.99

Valve Cover Gasket
California Residents: WARNING

From $14.99

5.0 5.0 (1)

Crown Automotive Head Gasket

From $15.99

Head Gasket
California Residents: WARNING

From $15.99

Omix-ADA Head Gaskets

From $136.99

Head Gasket
California Residents: WARNING

From $136.99

Crown Automotive Head Gasket Set

From $107.99

Crown Automotive Engine Upper Gasket Set

From $103.99

Engine Upper Gasket Set
California Residents: WARNING

From $103.99

Omix-ADA Engine Gasket Sets

From $109.99

Engine Gasket Set
California Residents: WARNING

From $109.99

Crown Automotive Engine Lower Gasket Set

From $26.99

Engine Lower Gasket Set
California Residents: WARNING

From $26.99

Crown Automotive Oil Filter

From $11.99

Engine Oil Filter
California Residents: WARNING

From $11.99

Omix-ADA Oil Filters

From $10.99

Oil Filter
California Residents: WARNING

From $10.99

Omix-ADA Oil Pumps

From $109.99

Oil Pump
California Residents: WARNING

From $109.99

Crown Automotive Engine Oil Pump

From $107.99

Engine Oil Pump
California Residents: WARNING

From $107.99

Crown Automotive Oil Pump Gasket

From $0.99

Oil Pump Gasket
Oil pump to block
California Residents: WARNING

From $0.99

Crown Automotive Engine Oil Pump Screen

From $71.99

Engine Oil Pump Screen
California Residents: WARNING

From $71.99

Crown Automotive Engine Oil Pans

From $105.99

Engine Oil Pan
California Residents: WARNING

From $105.99

4.0 4.0 (30)

Omix-ADA Oil Pans

From $130.99

Oil Pan
California Residents: WARNING

From $130.99

Crown Automotive Oil Filler Cap

From $10.99

Oil Filler Cap
California Residents: WARNING

From $10.99

5.0 5.0 (3)

Omix-ADA Oil Caps

From $13.99

Oil Cap
California Residents: WARNING

From $13.99

Crown Automotive Oil Pan Drain Plug Washer

From $1.99

Oil Pan Drain Plug Washer
California Residents: WARNING

From $1.99

Omix-ADA Oil Pan Drain Plugs

From $1.99

Oil Pan Drain Plug
California Residents: WARNING

From $1.99

5.0 5.0 (6)

Crown Automotive Oil Pan Drain Plug

From $10.99

Oil Pan Drain Plug
California Residents: WARNING

From $10.99

Dorman Engine Oil Pan Drain Plug

From $24.99

Drain Plug
Engine Oil Pan
Coated for high corrosion resistance
Many styles available
Including: standard, inset gasket, molded gasket, magnetic, and pilot point
California Residents: WARNING

From $24.99

Crown Automotive Valve Cover Grommet

From $1.99

Valve Cover Grommet
California Residents: WARNING

From $1.99

5.0 5.0 (3)

Crown Automotive Crankcase Vent Grommet

From $3.99

Crankcase Vent Grommet
Rear
California Residents: WARNING

From $3.99

Omix-ADA Pistons

From $17.99

Piston
California Residents: WARNING

From $17.99

Crown Automotive Engine Piston And Pin

From $103.99

Engine Piston And Pin
No Connecting Rod Included
California Residents: WARNING

From $103.99

Crown Automotive Engine Piston Ring Set

From $101.99

Engine Piston Ring Set
California Residents: WARNING

From $101.99

Omix-ADA Piston Ring Sets

From $109.99

Piston Ring Set
California Residents: WARNING

From $109.99

Crown Automotive Connecting Rod

From $57.99

Connecting Rod
California Residents: WARNING

From $57.99

4.0 4.0 (1)

Omix-ADA Oil Pan Gaskets

From $10.99

Oil Pan Gasket
California Residents: WARNING

From $10.99

Omix-ADA Connecting Rod Bolt/Nut Kits

From $4.99

Connecting Rod Bolt/Nut Kit
California Residents: WARNING

From $4.99

Crown Automotive Connecting Rod Bolt

From $6.99

Connecting Rod Bolt
California Residents: WARNING

From $6.99

Omix-ADA Main Engine Bearing Sets

From $109.99

Main Engine Bearing Set
California Residents: WARNING

From $109.99

Crown Automotive Crankshaft Bearing

From $15.99

Oversized crankshaft thrust bearing
.010 inch
California Residents: WARNING

From $15.99

Crown Automotive Crankshaft Thrust Bearing

From $19.99

Omix-ADA Connecting Rod Bearings

From $10.99

Connecting Rod Bearings
California Residents: WARNING

From $10.99

Crown Automotive Connecting Rod Bearing Set

From $105.99

Connecting Rod Bearing Set
California Residents: WARNING

From $105.99

Crown Automotive Expansion Plug

From $8.99

Expansion Freeze Plug
California Residents: WARNING

From $8.99

Crown Automotive Camshaft Plug

From $9.99

Camshaft Plug
2-9/64 inch diameter
Camshaft Plug
California Residents: WARNING

From $9.99

Crown Automotive Oil Hole Plug

From $8.99

Oil Hole Plug
California Residents: WARNING

From $8.99

Crown Automotive Timing Kit

From $105.99

Timing Kit
California Residents: WARNING

From $105.99

4.0 4.0 (3)

Omix-ADA Camshaft Bearings

From $11.99

Camshaft Bearings
California Residents: WARNING

From $11.99

Crown Automotive Camshaft Bearing Set

From $33.99

Camshaft Bearing Set
California Residents: WARNING

From $33.99

Crown Automotive Intake Valve

From $11.99

Intake Valve
California Residents: WARNING

From $11.99

Omix-ADA Intake Valves

From $10.99

Intake Valve
California Residents: WARNING

From $10.99

Crown Automotive Exhaust Valve

From $11.99

Exhaust Valve
California Residents: WARNING

From $11.99

Omix-ADA Exhaust Valves

From $14.99

Exhaust Valve
California Residents: WARNING

From $14.99

Omix-ADA Exhaust/Intake Valve Stem Seals

From $1.99

Exhaust/Intake Valve Stem Seal
California Residents: WARNING

From $1.99

Crown Automotive Valve Stem Seal

From $0.99

Valve Stem Seal
Sold Individually
California Residents: WARNING

From $0.99

Omix-ADA Exhaust Valve Stem Seals

From $7.99

Exhaust Valve Stem Seal
California Residents: WARNING

From $7.99

Omix-ADA Intake Valve Stem Seals

From $5.99

Intake Valve Stem Seal
California Residents: WARNING

From $5.99

Crown Automotive Valve Spring Retainer Keeper

From $1.99

Valve Spring Retainer Keeper
6-2 with Valve rotators
Exhaust valves
California Residents: WARNING

From $1.99

Crown Automotive Rocker Arms

From $12.99

Rocker Arm
California Residents: WARNING

From $12.99

Omix-ADA Rocker Arms

From $6.99

Rocker Arm
California Residents: WARNING

From $6.99

Omix-ADA Rocker Arm Kits

From $109.99

Rocker Arm Kit
California Residents: WARNING

From $109.99

Crown Automotive Rocker Arm Pivots

From $2.99

Rocker Arm Pivot
California Residents: WARNING

From $2.99

Omix-ADA Rocker Arm Pivots

From $2.99

Rocker Arm Pivot
California Residents: WARNING

From $2.99

Crown Automotive Rocker Arm Bridges

From $9.99

Rocker Arm Bridge
California Residents: WARNING

From $9.99

Crown Automotive Rocker Arm Pivot Bridge

From $1.99

Omix-ADA Rocker Arm Bridges

From $3.99

Rocker Arm Bridge
California Residents: WARNING

From $3.99

Crown Automotive Rocker Arm Pivot Bolt

From $1.99

Rocker Arm Pivot Bolt
California Residents: WARNING

From $1.99

3.5 3.5 (2)

Crown Automotive Valve Springs

From $10.99

Valve Spring
California Residents: WARNING

From $10.99

Omix-ADA Valve Lifters

From $11.99

Valve Lifter
California Residents: WARNING

From $11.99

Crown Automotive Valve Lifter

From $13.99

Valve Lifter
Sold individually
California Residents: WARNING

From $13.99

Crown Automotive Push Rod

From $10.99

Push Rod
Sold individually
California Residents: WARNING

From $10.99

Omix-ADA Push Rods

From $1.99

Push Rod
California Residents: WARNING

From $1.99

Omix-ADA Timing Chain Covers

From $109.99

Timing Chain Cover
California Residents: WARNING

From $109.99

Crown Automotive Timing Covers

From $330.99

Timing Cover
California Residents: WARNING

From $330.99

Crown Automotive Timing Cover Gasket

From $10.99

Timing Cover Gasket
California Residents: WARNING

From $10.99

Omix-ADA Timing Cover Gasket Sets

From $16.99

Timing Cover Gasket Set
California Residents: WARNING

From $16.99

Omix-ADA Crankshaft Oil Seals

From $0.99

Crankshaft Oil Seal
California Residents: WARNING

From $0.99

Crown Automotive Crankshaft Seal

From $10.99

Crankshaft Seal
California Residents: WARNING

From $10.99

Crown Automotive Timing Chain Tensioner

From $14.99

Timing Chain Tensioner
California Residents: WARNING

From $14.99

Crown Automotive Timing Chain Guide

From $28.99

Timing Chain Guide
California Residents: WARNING

From $28.99

5.0 5.0 (2)

Omix-ADA Timing Chain Tensioners

From $24.99

Timing Chain Tensioner
California Residents: WARNING

From $24.99

Omix-ADA Timing Chain Guides

From $8.99

Timing Chain Guide
California Residents: WARNING

From $8.99

Crown Automotive Balance Shaft Chain Guide

From $13.99

Balance Shaft Chain Guide
Sold individually
California Residents: WARNING

From $13.99

Crown Automotive Engine Timing Chain

From $133.99

Engine Timing Chain
California Residents: WARNING

From $133.99

Omix-ADA Timing Chains

From $109.99

Timing Chain
California Residents: WARNING

From $109.99

Omix-ADA Timing Chain Kits

From $1,048.99

Timing Kit
California Residents: WARNING

From $1,048.99

Crown Automotive Balance Shaft Chain

From $21.99

Balance Shaft Chain
Sold individually
California Residents: WARNING

From $21.99

Crown Automotive Camshaft Sprocket

From $33.99

Camshaft Sprocket
California Residents: WARNING

From $33.99

Omix-ADA Camshaft Gear/Sprockets

From $136.99

Camshaft Gear/Sprocket
California Residents: WARNING

From $136.99

Crown Automotive Crankshaft Sprocket

From $21.99

Omix-ADA Crankshaft Gear/Sprockets

From $109.99

Crankshaft Gear/Sprocket
California Residents: WARNING

From $109.99

Omix-ADA Crankshaft Pulley And Dampers

From $127.99

Crankshaft Pulley And Damper
California Residents: WARNING

From $127.99

Crown Automotive Harmonic Balancers

From $103.99

Crown Automotive Harmonic Balancer
California Residents: WARNING

From $103.99

Crown Automotive Oil Slingers

From $1.99

Oil Slinger
NP231, NP242 transfer case
California Residents: WARNING

From $1.99

Crown Automotive Clutch Pilot Bearings

From $10.99

Pilot Bearing
California Residents: WARNING

From $10.99

Omix-ADA Pilot Bushings

From $10.99

Pilot Bushing
California Residents: WARNING

From $10.99

Omix-ADA Flywheels

From $136.99

Standard Shift Flywheel
California Residents: WARNING

From $136.99

Omix-ADA Flex Plates

From $136.99

Replacement flex plates
Omix-ADA proudly offers high-quality replacement parts for your Jeep vehicle that always meet or exceed OE standards
California Residents: WARNING

From $136.99