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- Replacement Parts
- Engine Parts
- TJ Wrangler 4.0L 6 Cylinder Engine Parts
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.
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Omix-ADA Valve Covers
Omix-Ada Valve Cover
3.0
3.0
(2)
From $115.94
- Valve Cover
- California Residents: WARNING
1
Crown Automotive Valve Covers
Crown Automotive Valve Cover
5.0
5.0
(2)
From $32.99
- Valve Cover
- Plastic
- Grommets sold separately
- California Residents: WARNING
2
Omix-ADA Valve Cover Gasket Kits
Omix-Ada Valve Cover GasketFrom $13.99
- Valve Cover Gasket
- California Residents: WARNING
2
Omix-ADA Engine Valve Cover Gaskets
Omix-Ada Engine Valve Cover GasketFrom $26.99
- Valve Cover Gasket
- California Residents: WARNING
2
Crown Automotive Valve Cover Gasket
Crown Automotive Valve Cover Gasket
4.0
4.0
(1)
From $0.99
- Valve Cover Gasket
- California Residents: WARNING
3
Crown Automotive Head Gasket
Crown Automotive Head GasketFrom $10.99
- Head Gasket
- California Residents: WARNING
3
3
4
Omix-ADA Engine Gasket Sets
Omix-Ada Engine Gasket SetFrom $100.99
- Engine Gasket Set
- California Residents: WARNING
4
Crown Automotive Engine Upper Gasket Set
Crown Automotive Engine Upper Gasket SetFrom $10.99
- Engine Upper Gasket Set
- California Residents: WARNING
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Crown Automotive Engine Lower Gasket Set
Crown Automotive Engine Lower Gasket SetFrom $20.99
- Engine Lower Gasket Set
- California Residents: WARNING
6
6
Crown Automotive Oil Filter
Crown Automotive Oil FilterFrom $11.99
- Engine Oil Filter
- California Residents: WARNING
7
Crown Automotive Engine Oil Pump
Crown Automotive Engine Oil PumpFrom $106.99
- Engine Oil Pump
- California Residents: WARNING
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Crown Automotive Oil Pump Gasket
Crown Automotive Oil Pump GasketFrom $0.99
- Oil Pump Gasket
- Oil pump to block
- California Residents: WARNING
7
Crown Automotive Engine Oil Pump Screen
Crown Automotive Engine Oil Pump ScreenFrom $57.99
- Engine Oil Pump Screen
- California Residents: WARNING
8
Crown Automotive Engine Oil Pans
Crown Automotive Engine Oil Pan
5.0
5.0
(1)
From $104.99
- Engine Oil Pan
- California Residents: WARNING
8
9
9
Crown Automotive Oil Filler Cap
Crown Automotive Oil Filler CapFrom $3.99
- Oil Filler Cap
- California Residents: WARNING
10
Dorman Engine Oil Pan Drain Plug
Dorman Engine Oil Pan Drain PlugFrom $17.99
- 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
10
Crown Automotive Oil Pan Drain Plug Washer
Crown Automotive Oil Pan Drain Plug WasherFrom $1.99
- Oil Pan Drain Plug Washer
- California Residents: WARNING
10
Crown Automotive Oil Pan Drain Plug
Crown Automotive Oil Pan Drain PlugFrom $2.99
- Oil Pan Drain Plug
- California Residents: WARNING
10
Omix-ADA Oil Pan Drain Plugs
Omix-Ada Oil Pan Drain PlugFrom $1.99
- Oil Pan Drain Plug
- California Residents: WARNING
11
Crown Automotive Valve Cover Grommet
Crown Automotive Valve Cover Grommet
5.0
5.0
(1)
From $0.99
- Valve Cover Grommet
- California Residents: WARNING
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Crown Automotive Crankcase Vent Grommet
Crown Automotive Crankcase Vent GrommetFrom $2.99
- Crankcase Vent Grommet
- Rear
- California Residents: WARNING
12
Crown Automotive Engine Piston And Pin
Crown Automotive Engine Piston And PinFrom $237.99
- Engine Piston And Pin
- No Connecting Rod Included
- California Residents: WARNING
12
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Omix-ADA Piston Ring Sets
Omix-Ada Piston Ring SetFrom $101.99
- Piston Ring Set
- California Residents: WARNING
13
Crown Automotive Engine Piston Ring Set
Crown Automotive Engine Piston Ring SetFrom $102.99
- Engine Piston Ring Set
- California Residents: WARNING
14
Omix-ADA Oil Pan Gaskets
Omix-Ada Oil Pan GasketFrom $12.99
- Oil Pan Gasket
- California Residents: WARNING
14
Crown Automotive Connecting Rod
Crown Automotive Connecting RodFrom $32.99
- Connecting Rod
- California Residents: WARNING
15
Omix-ADA Connecting Rod Bolt/Nut Kits
Omix-Ada Connecting Rod Bolt/Nut KitFrom $4.99
- Connecting Rod Bolt/Nut Kit
- California Residents: WARNING
15
Crown Automotive Connecting Rod Bolt
Crown Automotive Connecting Rod BoltFrom $3.99
- Connecting Rod Bolt
- California Residents: WARNING
16
Omix-ADA Main Engine Bearing Sets
Omix-Ada Main Engine Bearing SetFrom $110.99
- Main Engine Bearing Set
- California Residents: WARNING
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Crown Automotive Crankshaft Bearing
Crown Automotive Crankshaft BearingFrom $9.99
- Oversized crankshaft thrust bearing
- .010 inch
- California Residents: WARNING
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Crown Automotive Connecting Rod Bearing Set
Crown Automotive Connecting Rod Bearing SetFrom $26.99
- Connecting Rod Bearing Set
- California Residents: WARNING
18
Omix-ADA Connecting Rod Bearings
Omix-Ada Connecting Rod BearingFrom $10.99
- Connecting Rod Bearings
- California Residents: WARNING
19
Crown Automotive Expansion Plug
Crown Automotive Expansion PlugFrom $1.99
- Expansion Freeze Plug
- California Residents: WARNING
19
Crown Automotive Camshaft Plug
Crown Automotive Camshaft PlugFrom $1.99
- Camshaft Plug
- 2-9/64 inch diameter
- Camshaft Plug
- California Residents: WARNING
20
Crown Automotive Oil Hole Plug
Crown Automotive Oil Hole PlugFrom $1.99
- Oil Hole Plug
- California Residents: WARNING
21
Omix-ADA Camshaft Kits
Omix-Ada Camshaft KitFrom $213.99
- Camshaft and Lifter Kit
- California Residents: WARNING
21
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Crown Automotive Timing Kit
Crown Automotive Timing KitFrom $102.99
- Timing Kit
- California Residents: WARNING
23
Crown Automotive Camshaft Bearing Set
Crown Automotive Camshaft Bearing SetFrom $16.99
- Camshaft Bearing Set
- California Residents: WARNING
23
Omix-ADA Camshaft Bearings
Omix-Ada Camshaft BearingFrom $13.99
- Camshaft Bearings
- California Residents: WARNING
24
Crown Automotive Intake Valve
Crown Automotive Intake ValveFrom $10.99
- Intake Valve
- California Residents: WARNING
24
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Crown Automotive Exhaust Valve
Crown Automotive Exhaust ValveFrom $10.99
- Exhaust Valve
- California Residents: WARNING
25
Omix-ADA Exhaust Valves
Omix-Ada Exhaust ValveFrom $10.99
- Exhaust Valve
- California Residents: WARNING
26
Omix-ADA Intake Valve Stem Seals
Omix-Ada Intake Valve Stem SealFrom $5.99
- Intake Valve Stem Seal
- California Residents: WARNING
26
Crown Automotive Valve Stem Seal
Crown Automotive Valve Stem SealFrom $0.99
- Valve Stem Seal
- Sold Individually
- California Residents: WARNING
26
Omix-ADA Exhaust/Intake Valve Stem Seals
Omix-Ada Exhaust/Intake Valve Stem SealFrom $1.99
- Exhaust/Intake Valve Stem Seal
- California Residents: WARNING
26
Omix-ADA Exhaust Valve Stem Seals
Omix-Ada Exhaust Valve Stem SealFrom $5.99
- Exhaust Valve Stem Seal
- California Residents: WARNING
27
Crown Automotive Valve Spring Retainer Keeper
Crown Automotive Valve Spring Retainer KeeperFrom $0.99
- Valve Spring Retainer Keeper
- 6-2 with Valve rotators
- Exhaust valves
- California Residents: WARNING
28
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Crown Automotive Rocker Arms
Crown Automotive Rocker ArmsFrom $13.64
- Rocker Arm
- California Residents: WARNING
28
Omix-ADA Rocker Arm Kits
Omix-Ada Rocker Arm KitFrom $29.99
- Rocker Arm Kit
- California Residents: WARNING
28
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Omix-ADA Rocker Arm Pivots
Omix-Ada Rocker Arm PivotFrom $2.99
- Rocker Arm Pivot
- California Residents: WARNING
29
Crown Automotive Rocker Arm Pivots
Crown Automotive Rocker Arm PivotsFrom $1.99
- Rocker Arm Pivot
- California Residents: WARNING
30
30
Crown Automotive Rocker Arm Bridges
Crown Automotive Rocker Arm BridgesFrom $3.99
- Rocker Arm Bridge
- California Residents: WARNING
30
Omix-ADA Rocker Arm Bridges
Omix-Ada Rocker Arm BridgeFrom $3.99
- Rocker Arm Bridge
- California Residents: WARNING
32
Crown Automotive Rocker Arm Pivot Bolt
Crown Automotive Rocker Arm Pivot BoltFrom $0.99
- Rocker Arm Pivot Bolt
- California Residents: WARNING
33
Crown Automotive Valve Springs
Crown Automotive Valve SpringFrom $0.99
- Valve Spring
- California Residents: WARNING
34
Crown Automotive Valve Lifter
Crown Automotive Valve LifterFrom $12.99
- Valve Lifter
- Sold individually
- California Residents: WARNING
34
35
Crown Automotive Push Rod
Crown Automotive Push RodFrom $1.94
- Push Rod
- Sold individually
- California Residents: WARNING
35
36
Crown Automotive Timing Covers
Crown Automotive Timing CoverFrom $272.99
- Timing Cover
- California Residents: WARNING
36
Omix-ADA Timing Chain Covers
Omix-Ada Timing Chain CoverFrom $111.99
- Timing Chain Cover
- California Residents: WARNING
36
Dorman Timing Cover Kit
Dorman Timing Cover KitFrom $60.99
- Includes gasket
- Aluminum material
- California Residents: WARNING
37
Omix-ADA Timing Cover Gasket Sets
Omix-Ada Timing Cover Gasket SetFrom $16.99
- Timing Cover Gasket Set
- California Residents: WARNING
37
Crown Automotive Timing Cover Gasket
Crown Automotive Timing Cover GasketFrom $12.99
- Timing Cover Gasket
- California Residents: WARNING
38
Omix-ADA Crankshaft Oil Seals
Omix-Ada Crankshaft Oil SealFrom $0.99
- Crankshaft Oil Seal
- California Residents: WARNING
38
Crown Automotive Crankshaft Seal
Crown Automotive Crankshaft SealFrom $1.99
- Crankshaft Seal
- California Residents: WARNING
40
Omix-ADA Timing Chain Tensioners
Omix-Ada Timing Chain TensionerFrom $110.99
- Timing Chain Tensioner
- California Residents: WARNING
40
Omix-ADA Timing Chain Guides
Omix-Ada Timing Chain GuideFrom $24.99
- Timing Chain Guide
- California Residents: WARNING
40
Crown Automotive Timing Chain Guide
Crown Automotive Timing Chain GuideFrom $20.99
- Timing Chain Guide
- California Residents: WARNING
40
Crown Automotive Timing Chain Tensioner
Crown Automotive Timing Chain TensionerFrom $24.99
- Timing Chain Tensioner
- California Residents: WARNING
40
Omix-ADA Timing Chain Tensioner Guides
Omix-Ada Timing Chain Tensioner GuideFrom $36.99
- Timing Chain Tensioner Guide
- California Residents: WARNING
40
Crown Automotive Balance Shaft Chain Guide
Crown Automotive Balance Shaft Chain GuideFrom $7.99
- Balance Shaft Chain Guide
- Sold individually
- California Residents: WARNING
41
Omix-ADA Timing Chains
Omix-Ada Timing ChainFrom $103.99
- Timing Chain
- California Residents: WARNING
41
Omix-ADA Timing Chain Kits
Omix-Ada Timing KitFrom $100.99
- Timing Kit
- California Residents: WARNING
41
Crown Automotive Engine Timing Chain
Crown Automotive Engine Timing ChainFrom $118.99
- Engine Timing Chain
- California Residents: WARNING
41
Crown Automotive Balance Shaft Chain
Crown Automotive Balance Shaft ChainFrom $17.99
- Balance Shaft Chain
- Sold individually
- California Residents: WARNING
42
Crown Automotive Camshaft Sprocket
Crown Automotive Camshaft SprocketFrom $23.99
- Camshaft Sprocket
- California Residents: WARNING
42
Omix-ADA Camshaft Gear/Sprockets
Omix-Ada Camshaft Gear/SprocketFrom $126.99
- Camshaft Gear/Sprocket
- California Residents: WARNING
43
Omix-ADA Crankshaft Gear/Sprockets
Omix-Ada Crankshaft Gear/SprocketFrom $12.99
- Crankshaft Gear/Sprocket
- California Residents: WARNING
43
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Crown Automotive Harmonic Balancers
Crown Automotive Harmonic BalancerFrom $0.99
- Crown Automotive Harmonic Balancer
- California Residents: WARNING
44
Omix-ADA Crankshaft Pulley And Dampers
Omix-Ada Crankshaft Pulley And DamperFrom $114.99
- Crankshaft Pulley And Damper
- California Residents: WARNING
45
Crown Automotive Oil Slingers
Crown Automotive Oil SlingerFrom $1.99
- Oil Slinger
- NP231, NP242 transfer case
- California Residents: WARNING
46
Omix-ADA Pilot Bushings
Omix-Ada Pilot BushingFrom $10.99
- Pilot Bushing
- California Residents: WARNING
46
Crown Automotive Clutch Pilot Bearings
Crown Automotive Pilot BearingFrom $16.99
- Pilot Bearing
- California Residents: WARNING
48
Crown Automotive Flywheel Ring Gear
Crown Automotive Flywheel Ring GearFrom $23.99
- Flywheel Ring Gear
- California Residents: WARNING
48
Omix-ADA Flywheel Ring Gears
Omix-Ada Flywheel Ring GearFrom $24.99
- Standard Shift Flywheel Ring Gear
- California Residents: WARNING
