Jeep YJ Wrangler 4.2L 6 cylinder Engine Parts - Best Reviews & Prices at 4 Wheel Parts

Jeep YJ Wrangler 4.2L 6 cylinder Engine Parts

Make Sure It Fits Your Vehicle

Factory style replacement 4.2L 258 6 cylinder engine parts for your 1987-95 YJ Wrangler. There's a lot to love about your YJ, including the occasionally controversial square headlights. However, it pays to remember your vehicle's series started way back in model year 1987. Jeep Wrangler value depends on more than quirky vintage charm: it depends on a clean engine. Keep your pre-1991 4.2L inline 6 in good condition with this full selection of parts.

Everything in One Place
Here at 4 Wheel Parts, we listened to customer requests and came up with a simple-to-navigate catalog. Simply take a look at the Jeep 4.2 engine diagram, and then click the number next to the part you need. If you don't see it right away, perform a search or browse the items this category. Pumps, gaskets, cylinder heads, timing chains, valve lifters, engine mounts and much more: All of the YJ engine parts you need are right here.

Quality and Value
Good quality and low prices matter for everything you need, whether it's a 1989 Jeep Wrangler 4.2 intake manifold or a replacement YJ valve cover gasket. That's why we've filled this page with parts that meet or exceed the OEM specs for every 1987-1990 Jeep Wrangler 4.2 engine. In addition, we're completely committed to our price guarantee. We offer one of the best price-match program available anywhere: Order now, and take up to 90 days to find a lower advertised price.

Why Rebuild Your 4.2L YJ Engine?
As many Jeepers have discovered, doing engine work is one of the toughest and most rewarding projects you can undertake. Whether you're giving a longtime off-roading companion some necessary maintenance or fixing up a recent boneyard acquisition, nothing is quite like feeling a defunct block roar back to life after hours of exacting work. Build your YJ back to its original glory with OEM parts, or throw in a few upgrades from our selection of aftermarket components. Qualified orders over $75 get free ground shipping, so order everything you need and get started on your project as soon as possible.

150 Products
1
 Omix-ADA Valve Covers

Omix-ADA Valve Covers

Omix-Ada Valve Cover
3.0 3.0 (2)

From $9.99

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1
 Crown Automotive Valve Covers

Crown Automotive Valve Covers

Crown Automotive Valve Cover
5.0 5.0 (2)

From $31.97

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2
 Crown Automotive Valve Cover Gasket

Crown Automotive Valve Cover Gasket

Crown Automotive Valve Cover Gasket
4.0 4.0 (1)

From $1.99

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2
 Omix-ADA Valve Cover Gasket Kits

Omix-ADA Valve Cover Gasket Kits

Omix-Ada Valve Cover Gasket

From $8.99

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3
 Omix-ADA Head Gaskets

Omix-ADA Head Gaskets

Omix-Ada Head Gasket

From $12.99

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3
 Crown Automotive Head Gasket

Crown Automotive Head Gasket

Crown Automotive Head Gasket

From $10.79

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5
 Crown Automotive Engine Lower Gasket Set

Crown Automotive Engine Lower Gasket Set

Crown Automotive Engine Lower Gasket Set

From $17.99

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6
 Omix-ADA Oil Filters

Omix-ADA Oil Filters

Omix-Ada Oil Filter

From $5.99

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7
 Crown Automotive Engine Oil Pump

Crown Automotive Engine Oil Pump

Crown Automotive Engine Oil Pump

From $28.99

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7
 Omix-ADA Oil Pumps

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Omix-Ada Oil Pump

From $3.99

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7
 Crown Automotive Engine Oil Pump Screen

Crown Automotive Engine Oil Pump Screen

Crown Automotive Engine Oil Pump Screen

From $57.99

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8
 Crown Automotive Engine Oil Pans

Crown Automotive Engine Oil Pans

Crown Automotive Engine Oil Pan
5.0 5.0 (1)

From $37.99

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8
 Omix-ADA Oil Pan Gaskets

Omix-ADA Oil Pan Gaskets

Omix-Ada Oil Pan Gasket

From $6.99

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8
 Omix-ADA Oil Pans

Omix-ADA Oil Pans

Omix-Ada Oil Pan

From $111.99

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9
 Crown Automotive Oil Filler Cap

Crown Automotive Oil Filler Cap

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9
 Omix-ADA Oil Caps

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Omix-Ada Oil Cap

From $4.99

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10
 Omix-ADA Oil Pan Drain Plugs

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Omix-Ada Oil Pan Drain Plug

From $1.99

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10
 Crown Automotive Oil Pan Drain Plug

Crown Automotive Oil Pan Drain Plug

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From $2.69

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11
 Crown Automotive PCV Valve

Crown Automotive PCV Valve

Crown Automotive PCV Valve

From $1.99

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11
 Omix-ADA PCV Valves

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Omix-Ada PCV Valve

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11
 Omix-ADA Valve Cover Grommets

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Omix-Ada Valve Cover Grommet

From $1.99

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11
 Crown Automotive PCV Valve Gasket

Crown Automotive PCV Valve Gasket

Crown Automotive PCV Valve Gasket

From $0.99

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11
 Crown Automotive PCV Valve Elbow

Crown Automotive PCV Valve Elbow

Crown Automotive PCV Valve Elbow

From $1.79

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12
 Omix-ADA Pistons

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Omix-Ada Piston

From $15.99

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12
 Crown Automotive Engine Piston And Pin

Crown Automotive Engine Piston And Pin

Crown Automotive Engine Piston And Pin

From $41.99

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13
 Crown Automotive Engine Piston Ring Set

Crown Automotive Engine Piston Ring Set

Crown Automotive Engine Piston Ring Set

From $14.99

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13
 Omix-ADA Piston Ring Sets

Omix-ADA Piston Ring Sets

Omix-Ada Piston Ring Set

From $12.99

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14
 Crown Automotive Connecting Rod

Crown Automotive Connecting Rod

Crown Automotive Connecting Rod

From $28.99

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14
 Omix-ADA Connecting Rods

Omix-ADA Connecting Rods

Omix-Ada Connecting Rod

From $67.99

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15
 Crown Automotive Connecting Rod Bolt

Crown Automotive Connecting Rod Bolt

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16
 Omix-ADA Main Engine Bearing Sets

Omix-ADA Main Engine Bearing Sets

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From $64.99

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16
 Crown Automotive Crankshaft Main Bearing Set

Crown Automotive Crankshaft Main Bearing Set

Crown Automotive Crankshaft Main Bearing Set

From $57.99

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17
 Crown Automotive Crankshaft Thrust Bearing

Crown Automotive Crankshaft Thrust Bearing

Crown Automotive Crankshaft Thrust Bearing

From $11.99

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17
 Crown Automotive Crankshaft Bearing

Crown Automotive Crankshaft Bearing

Crown Automotive Crankshaft Bearing

From $8.09

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18
 Omix-ADA Connecting Rod Bearings

Omix-ADA Connecting Rod Bearings

Omix-Ada Connecting Rod Bearing

From $8.99

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18
 Crown Automotive Connecting Rod Bearing Set

Crown Automotive Connecting Rod Bearing Set

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From $21.99

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18
 Crown Automotive Connecting Rod Bearing

Crown Automotive Connecting Rod Bearing

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From $7.19

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19
 Crown Automotive Camshaft Expansion Plug

Crown Automotive Camshaft Expansion Plug

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From $1.99

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20
 Crown Automotive Oil Hole Plug

Crown Automotive Oil Hole Plug

Crown Automotive Oil Hole Plug

From $1.99

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21
 Omix-ADA Crankshaft Gear/Sprockets

Omix-ADA Crankshaft Gear/Sprockets

Omix-Ada Crankshaft Gear/Sprocket

From $12.99

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21
 Crown Automotive Crankshaft Sprocket

Crown Automotive Crankshaft Sprocket

Crown Automotive Crankshaft Sprocket

From $16.99

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22
 Omix-ADA Pilot Bushings

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Omix-Ada Pilot Bushing

From $3.99

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22
 Crown Automotive Clutch Pilot Bearings

Crown Automotive Clutch Pilot Bearings

Crown Automotive Pilot Bearing

From $3.99

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23
 Crown Automotive Flywheel Ring Gear

Crown Automotive Flywheel Ring Gear

Crown Automotive Flywheel Ring Gear

From $20.69

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23
 Omix-ADA Flywheel Ring Gears

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From $31.99

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24
 Omix-ADA Flywheels

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Omix-Ada Flywheel Manual Transmission

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24
 Crown Automotive Flywheel Assembly

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24
 Omix-ADA Flex Plates

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Omix-Ada Automatic Flywheels

From $39.31

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24
 Crown Automotive Auto Trans Flexplate

Crown Automotive Auto Trans Flexplate

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From $41.39

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26
 Omix-ADA Camshafts

Omix-ADA Camshafts

Omix-Ada Camshaft

From $136.99

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26
 Crown Automotive Camshafts

Crown Automotive Camshafts

Crown Automotive Camshaft

From $98.99

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26
 Omix-ADA Camshaft Kits

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Omix-Ada Camshaft Kit

From $213.99

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27
 Omix-ADA Camshaft Bearings

Omix-ADA Camshaft Bearings

Omix-Ada Camshaft Bearing

From $13.99

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27
 Crown Automotive Camshaft Bearing Set

Crown Automotive Camshaft Bearing Set

Crown Automotive Camshaft Bearing Set

From $16.99

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28
 Omix-ADA Intake Valves

Omix-ADA Intake Valves

Omix-Ada Intake Valve

From $7.99

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28
 Crown Automotive Intake Valve

Crown Automotive Intake Valve

Crown Automotive Intake Valve

From $6.99

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29
 Omix-ADA Exhaust Valves

Omix-ADA Exhaust Valves

Omix-Ada Exhaust Valve

From $9.99

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29
 Crown Automotive Exhaust Valve

Crown Automotive Exhaust Valve

Crown Automotive Exhaust Valve

From $7.99

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30
 Crown Automotive Valve Stem Seal

Crown Automotive Valve Stem Seal

Crown Automotive Valve Stem Seal

From $0.99

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30
 Omix-ADA Intake Valve Stem Seals

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From $5.99

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30
 Omix-ADA Exhaust/Intake Valve Stem Seals

Omix-ADA Exhaust/Intake Valve Stem Seals

Omix-Ada Exhaust/Intake Valve Stem Seal

From $1.99

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31
 Crown Automotive Valve Spring Retainer Keeper

Crown Automotive Valve Spring Retainer Keeper

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From $0.99

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32
 Crown Automotive Valve Springs

Crown Automotive Valve Springs

Crown Automotive Valve Spring

From $0.99

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33
 Omix-ADA Rocker Arms

Omix-ADA Rocker Arms

Omix-Ada Rocker Arm

From $6.99

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33
 Omix-ADA Rocker Arm Kits

Omix-ADA Rocker Arm Kits

Omix-Ada Rocker Arm Kit

From $29.99

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33
 Crown Automotive Rocker Arms

Crown Automotive Rocker Arms

Crown Automotive Rocker Arms

From $5.99

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33
 Crown Automotive Rocker Arm Kit

Crown Automotive Rocker Arm Kit

Crown Automotive Rocker Arm Kit

From $53.97

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34
 Omix-ADA Rocker Arm Pivots

Omix-ADA Rocker Arm Pivots

Omix-Ada Rocker Arm Pivot

From $2.99

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34
 Crown Automotive Rocker Arm Pivots

Crown Automotive Rocker Arm Pivots

Crown Automotive Rocker Arm Pivots

From $1.79

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35
 Crown Automotive Rocker Arm Bridges

Crown Automotive Rocker Arm Bridges

Crown Automotive Rocker Arm Bridges

From $3.99

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35
 Omix-ADA Rocker Arm Bridges

Omix-ADA Rocker Arm Bridges

Omix-Ada Rocker Arm Bridge

From $3.99

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36
 Crown Automotive Rocker Arm Pivot Bridge

Crown Automotive Rocker Arm Pivot Bridge

Crown Automotive Rocker Arm Pivot Bridge

From $1.79

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37
 Crown Automotive Rocker Arm Pivot Bolt

Crown Automotive Rocker Arm Pivot Bolt

Crown Automotive Rocker Arm Pivot Bolt

From $1.99

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38
 Omix-ADA Valve Lifters

Omix-ADA Valve Lifters

Omix-Ada Valve Lifter

From $8.99

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38
 Crown Automotive Valve Lifter

Crown Automotive Valve Lifter

Crown Automotive Valve Lifter

From $6.97

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39
 Omix-ADA Push Rods

Omix-ADA Push Rods

Omix-Ada Push Rod

From $1.99

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39
 Crown Automotive Push Rod

Crown Automotive Push Rod

Crown Automotive Push Rod

From $1.99

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40
 Omix-ADA Timing Chain Covers

Omix-ADA Timing Chain Covers

Omix-Ada Timing Chain Cover

From $60.99

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40
 Crown Automotive Timing Covers

Crown Automotive Timing Covers

Crown Automotive Timing Cover

From $42.97

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40
 Crown Automotive Timing Cover Kit

Crown Automotive Timing Cover Kit

Crown Automotive Timing Cover Kit

From $61.99

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41
 Crown Automotive Timing Gasket And Seal Kit

Crown Automotive Timing Gasket And Seal Kit

Crown Automotive Timing Gasket And Seal Kit

From $6.99

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41
 Omix-ADA Timing Cover Gasket Sets

Omix-ADA Timing Cover Gasket Sets

Omix-Ada Timing Cover Gasket Set

From $4.99

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42
 Omix-ADA Crankshaft Oil Seals

Omix-ADA Crankshaft Oil Seals

Omix-Ada Crankshaft Oil Seal

From $0.99

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42
 Omix-ADA Timing Cover Oil Seals

Omix-ADA Timing Cover Oil Seals

Omix-Ada Timing Cover Oil Seal

From $5.99

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42
 Crown Automotive Crankshaft Seal

Crown Automotive Crankshaft Seal

Crown Automotive Crankshaft Seal

From $1.99

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42
 Omix-ADA Timing Cover Seals

Omix-ADA Timing Cover Seals

Omix-Ada Timing Cover Seal

From $7.99

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43
 Crown Automotive Timing Cover Gasket

Crown Automotive Timing Cover Gasket

Crown Automotive Timing Cover Gasket

From $2.99

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44
 Crown Automotive Engine Timing Chain

Crown Automotive Engine Timing Chain

Crown Automotive Engine Timing Chain

From $12.99

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44
 Omix-ADA Timing Chains

Omix-ADA Timing Chains

Omix-Ada Timing Chain

From $16.99

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45
 Omix-ADA Camshaft Gear/Sprockets

Omix-ADA Camshaft Gear/Sprockets

Omix-Ada Camshaft Gear/Sprocket

From $17.99

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45
 Crown Automotive Camshaft Sprocket

Crown Automotive Camshaft Sprocket

Crown Automotive Camshaft Sprocket

From $19.99

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46
 Crown Automotive Timing Kit

Crown Automotive Timing Kit

Crown Automotive Timing Kit

From $49.97

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46
 Omix-ADA Timing Chain Kits

Omix-ADA Timing Chain Kits

Omix-Ada Timing Kit

From $53.99

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47
 Crown Automotive Harmonic Balancers

Crown Automotive Harmonic Balancers

Crown Automotive Harmonic Balancer

From $0.89

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47
 Omix-ADA Crankshaft Pulley And Dampers

Omix-ADA Crankshaft Pulley And Dampers

Omix-Ada Crankshaft Pulley And Damper

From $9.99

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48
 Crown Automotive Oil Slingers

Crown Automotive Oil Slingers

Crown Automotive Oil Slinger

From $2.99

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49
 RT Off-Road Exhaust Manifolds

RT Off-Road Exhaust Manifolds

RT Off-Road Exhaust Manifold

From $252.99

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49
 Omix-ADA Exhaust Manifolds

Omix-ADA Exhaust Manifolds

Omix-Ada Exhaust Manifold

From $91.99

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49
 Omix-ADA Exhaust Manifold Kits

Omix-ADA Exhaust Manifold Kits

Omix-Ada Exhaust Manifold Kit

From $17.99

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49
 Crown Automotive Exhaust Manifolds

Crown Automotive Exhaust Manifolds

Crown Automotive Exhaust Manifolds

From $64.79

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