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  1. Home
  2. Buick
  3. 1991
  4. Skylark
  5. Engine Straight 4 Cylinders

1991 Buick Skylark engine straight 4 cylinders parts catalog

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Housing kit, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 12508076
  • Engine balance (cover & baffle are assembled with self-tapping bolts) (identify by 39 teeth & 30 degree helix angle on balance gears.must mesh with crank gear.) (1990)

$?

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Housing kit, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 12508076
  • Engine balance (cover & baffle are assembly with self-tapping bolts) (identify by 39 teeth & 30 degree helix angle on balance gears.must mesh with crank gear.) (1991) (l68)

$?

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Plate kit, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 12508079
  • Camshaft thrust

$10.30—13.53

Available in 38 shops

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Pump kit, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 12518877
  • Oil (gerotor) (l68)

$?

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Cord, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 12563682
  • Engine block heater

$33.11—39.70

Available in 38 shops

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Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 14001842
  • Start mtr. outboard hole (m10x46)

$3.19—7.14

Available in 2 shops

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Gasket, engine assembly 2.5l l4 (l68/2.5u)

$2.40—3.01

Available in 38 shops

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Screw, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 15607203
  • Hwh tappet (m8x1.25x30) por

$3.04—3.42

Available in 2 shops

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Lifter, engine assembly 2.5l l4 (l68/2.5u)

$32.21—49.98

Available in 38 shops

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Bearing kit, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 18012433
  • Crankshaft (1, 2, 3, 4)

$0.80

Available in 1 shop

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Switch, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 19244517
  • Oil pressure indicator & choke heater (gage)

$11.98—18.49

Available in 37 shops

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Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 24504922
  • Hex flanged head (m10x1.5x36) 10.9 plate steel

$0.73—1.35

Available in 38 shops

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Filter, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 25012305
  • Oil (pf1072) (int filter)

$3.21—3.35

Available in 2 shops

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Pinion, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 00522780
  • Cylinder head dowel (5/16x11/16)

$?

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Plug, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 00838538
  • Washer jacket side (41.5mm)

$?

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Sparkplug, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 05614046
  • Spark (r43ts6)

$?

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Bolt, engine assembly 2.5l l4 (l68/2.5u)

$?

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Ball, engine assembly 2.5l l4 (l68/2.5u)

$?

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Guide, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10012915
  • Valve push rod (#1)

$?

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Guide, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10012916
  • Valve push rod (#2)

$?

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Guide, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10012917
  • Valve push rod (#3)

$?

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Guide, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10012918
  • Valve push rod (#4)

$1.99

Available in 1 shop

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Nipple, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10027566
  • Intake manifold

$?

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Bracket, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10030936
  • Engine lift front

$1.37

Available in 1 shop

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Cap, engine assembly 2.5l l4 (l68/2.5u)

$?

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Rod, engine assembly 2.5l l4 (l68/2.5u)

$?

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Seal, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10042875
  • Intake valve stem oil

$?

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Seal, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10042877
  • Exhaust valve stem oil

$?

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Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10043014
  • Exhaust manifold (to cylinder head (posn#7) (1991) (l68)

$?

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Bracket, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10044237
  • Engine lift rear

$?

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Tube, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10044339
  • Exhaust gas recirculation valve vacuum

$?

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Stud, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10044417
  • Throttle body injector

$?

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Valve, engine assembly 2.5l l4 (l68/2.5u)

$?

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Valve, engine assembly 2.5l l4 (l68/2.5u)

$?

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Stud, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10044611
  • Valve lifter guide retain

$0.93

Available in 1 shop

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Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10044622
  • Valve rocker armature ball hex flanged head (m8x1.25x36) 10.9 phos

$1.52

Available in 1 shop

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Manifold, engine assembly 2.5l l4 (l68/2.5u)

$?

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Gasket, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10066662
  • Intake manifold

$?

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Manifold, engine assembly 2.5l l4 (l68/2.5u)

$?

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Gasket, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10066687
  • Throttle body injector

$4.13—4.65

Available in 2 shops

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Fitting, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10101327
  • Coolant expansion tk inlet

$?

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Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10101343
  • Exhaust manifold to cylinder head (position 1, 2, 6)

$2.66—2.86

Available in 2 shops

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Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10101344
  • Exhaust manifold (posn#7) (hex10x1.52x28, m8x1.25x15, 9.8.pl) (1990)

$?

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Gasket, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10101360
  • Exhaust manifold

$16.63—17.89

Available in 2 shops

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Cap, engine assembly 2.5l l4 (l68/2.5u)

$6.13—7.67

Available in 38 shops

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Gasket, engine assembly 2.5l l4 (l68/2.5u)

$?

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Cover, engine assembly 2.5l l4 (l68/2.5u)

$0.49—45.55

Available in 2 shops

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Pipe, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10101843
  • Coolant expansion tk inlet

$?

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Thermostat, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10101864
  • Engine water outlet (1991 second design)

$10.38

Available in 1 shop

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Outlet, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10101865
  • Cooling (1991)

$9.02

Available in 1 shop

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Bracket, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10101874
  • Ignition cable harness

$0.73

Available in 1 shop

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Grommet, engine assembly 2.5l l4 (l68/2.5u)

$3.42—3.68

Available in 2 shops

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Tube, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10112532
  • Positive crankcase ventilation (component parts serviced) (1991)

$13.90

Available in 1 shop

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Gasket, engine assembly 2.5l l4 (l68/2.5u)

$0.49

Available in 1 shop

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Armature, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10121095
  • With ball valve rocker

$?

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Outlet, engine assembly 2.5l l4 (l68/2.5u)

$9.02

Available in 1 shop

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Retainer, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 10124696
  • Exhaust manifold bolt (1990)

$2.83

Available in 1 shop

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Spring, engine assembly 2.5l l4 (l68/2.5u)

$?

Add to cart

Housing kit, engine assembly 2.5l l4 (l68/2.5u)

$0.56

Available in 1 shop

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Thermostat (195 degree) (1990 first design) (acdelco #131-73), engine assembly 2.5l l4 (l68/2.5u)

$7.44—15.87

Available in 38 shops

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Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 11508476
  • Hex flanged head (m8x1.25x25) 9.8 por

$0.53—0.70

Available in 38 shops

Add to cart

Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 11508687
  • Hex flanged head (m8x1.25x16) 9.8 pzor

$4.69—8.45

Available in 38 shops

Add to cart

Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 11509418
  • Hexagon (m8x1.25x30) 10.9 pzor

$3.21—6.66

Available in 38 shops

Add to cart

Nut, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 11514597
  • Hex flanged head (m10x1.5x10) 10 por

$2.86—5.83

Available in 3 shops

Add to cart

Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 11514766
  • Hexagon (m8x1.25x25) 10.9 phos

$0.79—0.84

Available in 2 shops

Add to cart

Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 11516327
  • Hex flanged head, m10x1.5x25, 22.30 outside diameter, header point, 10.9, 7112m (exhaust manifold to cylinder head (position 3, 4, 5))

$1.46—2.24

Available in 38 shops

Add to cart

Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 11518061
  • Hex flanged head (m6x1x14) 9.8 por

$2.76—6.28

Available in 38 shops

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Clamp, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 11609970
  • Worm gear, 14.22-26.92 diameter, 13.25 thick, stainless stl. (crankcase) (1990) (l68)

$1.41—2.63

Available in 38 shops

Add to cart

Clamp, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 11609970
  • Crankcase (1991) (l68)

$1.41—2.63

Available in 38 shops

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Wire kit, engine assembly 2.5l l4 (l68/2.5u)

$26.80

Available in 1 shop

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Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 12337925
  • Cylinder head (position 10) hexagon (m11x1.5x106) 11.9 oil

$?

Add to cart

Gasket, engine assembly 2.5l l4 (l68/2.5u)

$0.70—3.54

Available in 38 shops

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Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 12338006
  • Cylinder head (positive #1 thru 8) (hex flanged head reduced body m11x1.5x104.9) (l68)

$?

Add to cart

Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 12338022
  • Cylinder head (position 9) (m11x1.5x18) 11.9 oil

$?

Add to cart

Head, engine assembly 2.5l l4 (l68/2.5u)

$?

Add to cart

Tube, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 12515202
  • Positive crankcase ventilation (component parts serviced) (1990)

$12.42—15.22

Available in 38 shops

Add to cart

Sensor, engine assembly 2.5l l4 (l68/2.5u)

$0.40—58.62

Available in 39 shops

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Bolt, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 15614709
  • Hexagon with conical washer (m8x1.25x21.5) 9.8 pzor

$4.69—8.34

Available in 38 shops

Add to cart

Valve, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 17113498
  • Exhaust gas recirculation

$59.33—61.99

Available in 2 shops

Add to cart

Sensor, engine assembly 2.5l l4 (l68/2.5u)

$28.97—31.18

Available in 2 shops

Add to cart

Valve, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 22532158
  • Heater water flow control (inlet)

$9.43—22.13

Available in 38 shops

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Key, engine assembly 2.5l l4 (l68/2.5u)

$1.77—1.99

Available in 2 shops

Add to cart

Sensor, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 25036751
  • Manifold air temp

$29.74—63.28

Available in 38 shops

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Valve, engine assembly 2.5l l4 (l68/2.5u)

$7.26—7.81

Available in 2 shops

Add to cart

Plug, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 25522466
  • Headless square socket (1/2-14) steel

$1.19—1.34

Available in 2 shops

Add to cart

Clip, engine assembly 2.5l l4 (l68/2.5u)

  • OEM part number: 25526629
  • Closed steel, 7/16"x 5/16", zinc coated, natural

$2.76—4.78

Available in 38 shops

Add to cart

Washer, engine and transmission mounting l4 (l68/2.5u)

  • OEM part number: 10026363
  • Flat (m10.5x20)

$5.14—5.53

Available in 2 shops

Add to cart

Bracket, engine and transmission mounting l4 (l68/2.5u)

  • OEM part number: 10032208
  • Engine mount front (automatic transmission)

$?

Add to cart

Bracket, engine and transmission mounting l4 (l68/2.5u)

  • OEM part number: 10035831
  • Engine mount (1985)

$?

Add to cart

Bracket, engine and transmission mounting l4 (l68/2.5u)

  • OEM part number: 10037976
  • Engine mount (1986-91)

$5.53

Available in 1 shop

Add to cart

Bracket, engine and transmission mounting l4 (l68/2.5u)

  • OEM part number: 10038082
  • Engine mount front (1985-87) (manual transmission)

$?

Add to cart

Bracket, engine and transmission mounting l4 (l68/2.5u)

  • OEM part number: 10040335
  • Engine mount rear (automatic transmission)

$?

Add to cart

Bracket, engine and transmission mounting l4 (l68/2.5u)

  • OEM part number: 10040336
  • Engine mount rear (1985-87) (manual transmission)

$?

Add to cart

Support, engine and transmission mounting l4 (l68/2.5u)

  • OEM part number: 10150331
  • Trans (first design) (1985)

$?

Add to cart

Washer, engine and transmission mounting l4 (l68/2.5u)

  • OEM part number: 11502474
  • Flat (m10x25) cubic

$?

Add to cart

Bolt, engine and transmission mounting l4 (l68/2.5u)

  • OEM part number: 11508540
  • Hex flanged head (m10x1.5x75) 10.9 pzor

$0.65—0.69

Available in 2 shops

Add to cart

Bolt, engine and transmission mounting l4 (l68/2.5u)

  • OEM part number: 11508854
  • Hex flanged head (m14x2x135) 10.7 por

$?

Add to cart

Bolt, engine and transmission mounting l4 (l68/2.5u)

  • OEM part number: 11514779
  • Hexagon (m10x1.5x30) 10.9 phos

$0.46—0.88

Available in 38 shops

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