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  1. Home
  2. Buick
  3. 1991
  4. Riviera
  5. Engine V6

1991 Buick Riviera engine v6 parts catalog

Add this car in your garage and make future searches easy.

Shield, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 15336959
  • Quantity in car: 6
  • Spark plug wire
  • Usage: E (L27)

$4.48—5.04

Available in 2 shops

Add to cart

Valve, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 17112649
  • Quantity in car: 1
  • Usage: E (L27), E (L27)
  • A Service Bulletin Applies To This Part Number. Per Gm Service Policies And Procedures, Failure To Follow Bulletin Information May Result In The Rejection Of A Warranty Claim.

$82.15—85.81

Available in 2 shops

Add to cart

Lifter, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 17122490
  • Quantity in car: 12
  • Valve (hydraulic, roller, non-active fuel management lifter)
  • Usage: E (L27)

$32.74—49.88

Available in 38 shops

Add to cart

Wire kit, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 19154580
  • Quantity in car: 1
  • Spark plug (with magnavox ignition module having spark plug wire terminal in 2 rows of 3, for second design see 19154581)
  • Usage: E (L27) (1ST DES)

$34.72—37.95

Available in 38 shops

Add to cart

Wire kit, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 19154581
  • Quantity in car: 1
  • Spark plug
  • Usage: E (L27)

$36.72—40.84

Available in 38 shops

Add to cart

Wire kit, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 19154581
  • Quantity in car: 1
  • Spark plug (used on engine with delco-remy ignition module spark plug wire terminal on module are in one row of 6 terminal, for first design see 12074043)
  • Usage: E (L27) (2ND DES)

$36.72—40.84

Available in 38 shops

Add to cart

Spark plug, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 19158000
  • Quantity in car: 6
  • (standard plug)
  • Usage: E (L27)

$1.64

Available in 1 shop

Add to cart

Spark plug, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 19158002
  • Quantity in car: 6
  • (standard plug)
  • Usage: E (L27)

$1.64—1.72

Available in 2 shops

Add to cart

Spark plug, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 19158029
  • Quantity in car: 6
  • (platinum plug)
  • Usage: E (L27)

$5.53—11.02

Available in 38 shops

Add to cart

Sensor, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 19178953
  • Quantity in car: 1
  • Oxygen
  • Usage: E (L27)

$28.97—31.18

Available in 2 shops

Add to cart

Seal kit, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 19178978
  • Quantity in car: 6
  • Usage: E (L27)

$14.26—16.71

Available in 38 shops

Add to cart

Sensor, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 19179713
  • Quantity in car: 1
  • Mass airflow
  • Usage: E (L27)

$179.36—383.22

Available in 38 shops

Add to cart

Sensor, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 19187357
  • Quantity in car: 1
  • Usage: EC67 (L27), EC97 (L27), EZ57 (L27)

$22.37—26.05

Available in 2 shops

Add to cart

Regulator, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 19236421
  • Quantity in car: 1
  • Usage: EC67 (L27), EC97 (L27), EZ57 (L27)

$56.29—106.53

Available in 38 shops

Add to cart

Spark plug, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 19244474
  • Quantity in car: 6
  • (platinum plug)
  • Usage: E (L27)

$5.53

Available in 1 shop

Add to cart

Seal, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24100002
  • Quantity in car: 1
  • Usage: E (L27)

$0.43

Available in 1 shop

Add to cart

Bolt, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500055
  • Quantity in car: 3
  • Valve lifter guide retain (to cylinder block) (5/16-18x.855 with flat washer)
  • Usage: E (L27)

$2.76—2.91

Available in 2 shops

Add to cart

Stud, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500136
  • Quantity in car: 1
  • Usage: E (L27)

$0.47

Available in 1 shop

Add to cart

Nut, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500137
  • Quantity in car: 1
  • Fuel injector sight shield
  • Usage: E

$?

Add to cart

Pipe, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500139
  • Quantity in car: 1
  • Heater inlet (heater pipes point to the rear of the vehicle) (component parts serviced)
  • Usage: E (L27) (1ST DES)

$0.88

Available in 1 shop

Add to cart

Pipe, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500139
  • Quantity in car: 1
  • Usage: E (L27)

$0.88

Available in 1 shop

Add to cart

Gasket, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500166
  • Quantity in car: 1
  • Throttle body (intake manifold to throttle body)
  • Usage: E (L27)

$7.16—12.85

Available in 38 shops

Add to cart

Shield, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500187
  • Quantity in car: 1
  • Fuel pipe
  • Usage: E (L27)

$?

Add to cart

Rail, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500224
  • Quantity in car: 1
  • Sequential multiport fuel injection fuel
  • Usage: E (L27)

$189.70

Available in 1 shop

Add to cart

Regulator, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500228
  • Quantity in car: 1
  • Fuel pressure
  • Usage: E (L27)

$86.83—95.06

Available in 38 shops

Add to cart

Ring, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500246
  • Quantity in car: 1
  • Fuel pressure regulator retain
  • Usage: E (L27)

$7.29—7.97

Available in 2 shops

Add to cart

Seal, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500321
  • Quantity in car: 1
  • Usage: E (L27)

$1.17—2.18

Available in 38 shops

Add to cart

Shield, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500344
  • Quantity in car: 1
  • Usage: E (L27)

$?

Add to cart

Head, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500363
  • Quantity in car: 2
  • Cylinder (component parts serviced)
  • Usage: E (L27)

$?

Add to cart

Spring, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500431
  • Quantity in car: 1
  • Usage: E (L27)

$5.05—5.42

Available in 2 shops

Add to cart

Bracket, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500449
  • Quantity in car: 1
  • gen. brace
  • Usage: E (L27)

$5.87

Available in 1 shop

Add to cart

Bracket, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500494
  • Quantity in car: 1
  • Accelerator control cable (to throttle body)
  • Usage: E (L27)

$?

Add to cart

Outlet, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500500
  • Quantity in car: 1
  • Water
  • Usage: E (L27)

$19.17—21.57

Available in 2 shops

Add to cart

Cover, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500537
  • Quantity in car: 1
  • Usage: E (L27)

$?

Add to cart

Gasket, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500539
  • Quantity in car: 1
  • Positive crankcase ventilation valve cover (positive crankcase ventilation)
  • Usage: E (L27)

$?

Add to cart

Seal, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500650
  • Quantity in car: 1
  • Throttle body heater outlet pipe (O-ring) (heater inlet & outlet pipe)
  • Usage: E (L27)

$4.97—5.71

Available in 2 shops

Add to cart

Screen, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500736
  • Quantity in car: 1
  • Throttle body air inlet
  • Usage: E (L27)

$?

Add to cart

Cap, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24500873
  • Quantity in car: 12
  • Valve spring
  • Usage: E (L27)

$?

Add to cart

Bolt, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501063
  • Quantity in car: 2
  • Exhaust manifold brace (m10x1.5x18, 15.7 thread) (hex flanged head, with adhesive)
  • Usage: E (L27)

$0.51

Available in 1 shop

Add to cart

Bolt, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501063
  • Quantity in car: 1
  • Drive belt tensioner bracket (m10x1.5x18, 15.7 thread) (hex flanged head, with adhesive)
  • Usage: E (L27)

$0.51

Available in 1 shop

Add to cart

Bolt, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501063
  • Quantity in car: 2
  • generator bracket (m10x1.5x18, 15.7 thread) (hex flanged head, with adhesive)
  • Usage: E (L27)

$0.51

Available in 1 shop

Add to cart

Pipe, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501107
  • Quantity in car: 1
  • Heater inlet (heater pipes have a bend and point to the right side of the vehicle) (component parts serviced)
  • Usage: E (L27) (2ND DES)

$0.88—12.52

Available in 2 shops

Add to cart

Harness, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501262
  • Quantity in car: 1
  • Vacuum source (component parts serviced)
  • Usage: E (L27)

$?

Add to cart

Valve, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501290
  • Quantity in car: 6
  • Intake (standard)
  • Usage: E (L27), E (L27)

$3.00

Available in 1 shop

Add to cart

Manifold, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501293
  • Quantity in car: 1
  • Vacuum source
  • Usage: E (L27)

$2.72

Available in 1 shop

Add to cart

Injector, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501509
  • Quantity in car: 6
  • Usage: E (L27)

$95.59—99.72

Available in 2 shops

Add to cart

Brace LH, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501526
  • Quantity in car: 1
  • Exhaust manifold (with 1 piece manifold & cross cover pipe)
  • Usage: E (L27) (2ND DES)

$?

Add to cart

Manifold, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501530
  • Quantity in car: 1
  • Vacuum source
  • Usage: E (L27)

$0.44

Available in 1 shop

Add to cart

Bolt, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501552
  • Quantity in car: 1
  • Intake upper manifold (hex flanged head, m8x1.25x66.4, 27thd, 15 outside diameter, 9.8, po, machine) (m8x1.25x66.4, 27 thread)
  • Usage: E (L27) (UPPER TO LWR) (RH REAR))

$5.16—5.53

Available in 2 shops

Add to cart

Manifold, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501613
  • Quantity in car: 1
  • Lower int (component parts serviced) (no gasket used between lower & upper plemum)
  • Usage: E (L27)

$?

Add to cart

Valve, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501667
  • Quantity in car: 6
  • Exhaust (standard)
  • Usage: E (L27), E (L27)

$?

Add to cart

Valve, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501717
  • Quantity in car: 6
  • Intake (.010 oversize)
  • Usage: E (L27), E (L27)

$?

Add to cart

Manifold LH, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501727
  • Quantity in car: 1
  • Exhaust (with heat shield) (component parts serviced)
  • Usage: E (L27)

$?

Add to cart

Manifold LH, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501727
  • Quantity in car: 1
  • Exhaust (with heat shield) (2-piece design exhaust man& crossover are separate (24501729). second design see 24501743) (component parts serviced)
  • Usage: E (L27) (1ST DES)

$?

Add to cart

Pipe, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501729
  • Quantity in car: 1
  • Exhaust crossover (component parts serviced)
  • Usage: E (L27)

$?

Add to cart

Pipe LH, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501729
  • Quantity in car: 1
  • Usage: E (L27) (1ST DES)

$?

Add to cart

Bolt, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501761
  • Quantity in car: 1
  • Water outlet (m8x1.25x56)
  • Usage: E (L27) (LONG)

$?

Add to cart

Brace, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501842
  • Quantity in car: 1
  • Drive belt tensioner
  • Usage: E (L27)

$?

Add to cart

Support, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24501848
  • Quantity in car: 1
  • Usage: E (L27)

$?

Add to cart

Manifold, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24502027
  • Quantity in car: 1
  • Upper int (component parts serviced)
  • Usage: E (L27)

$?

Add to cart

Bracket, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24502145
  • Quantity in car: 1
  • Engine lift front
  • Usage: E (L27)

$0.47

Available in 1 shop

Add to cart

Bolt, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24502164
  • Quantity in car: 12
  • Valve rocker armature cover (with washer to cylinder head (hwh, 1/4-20x1.0 with dog pt/.85 outside diameter special body washer, 6010m, po 6174m) (1/4-20x1) (with washer to cylinder head)
  • Usage: E (L27)

$2.45—4.14

Available in 38 shops

Add to cart

Valve, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24502394
  • Quantity in car: 6
  • Exhaust (.010 oversize) (with full chromed & polished stem)
  • Usage: E (L27)

$?

Add to cart

Indicator, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24502435
  • Quantity in car: 1
  • Usage: E (L27)

$10.87—15.65

Available in 38 shops

Add to cart

Tube, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24502449
  • Quantity in car: 1
  • Usage: E (L27)

$?

Add to cart

Pipe, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24503158
  • Quantity in car: 1
  • Heater outlet (heater pipes have a bend and point to the right side of the vehicle) (component parts serviced)
  • Usage: E (L27) (2ND DES)

$13.02—14.09

Available in 2 shops

Add to cart

Pipe, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24503161
  • Quantity in car: 1
  • Heater outlet (component parts serviced)
  • Usage: E (L27)

$14.29—15.46

Available in 2 shops

Add to cart

Pipe, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24503161
  • Quantity in car: 1
  • Heater outlet (heater pipes point to the rear of the vehicle) (component parts serviced)
  • Usage: E (L27) (1ST DES)

$14.29—15.46

Available in 2 shops

Add to cart

Retainer, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24503227
  • Quantity in car: 6
  • Usage: E (L27)

$1.53—1.72

Available in 2 shops

Add to cart

Stud, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24503547
  • Quantity in car: 12
  • Exhaust manifold
  • Usage: E (L27)

$?

Add to cart

Key, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24503856
  • Quantity in car: 24
  • Valve stem
  • Usage: E (L27)

$2.31—6.21

Available in 38 shops

Add to cart

Tensioner, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24504575
  • Quantity in car: 1
  • Drive belt
  • Usage: E (L27)

$104.84—112.25

Available in 2 shops

Add to cart

Stud, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24504791
  • Quantity in car: 2
  • gen. support (to cyd hd. (with conical 21 outside diameter, m10x1.5x57.5, m10x1.5x28.5, 93.8tl)
  • Usage: E (L27)

$?

Add to cart

Bolt, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24504922
  • Drive belt tensioner bracket (m10x1.5x36) (hex flanged head, full thread)
  • Usage: E (L27), E (L27)

$0.73—1.35

Available in 38 shops

Add to cart

Bolt, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24504922
  • Quantity in car: 1
  • Hex flanged head, torx, with adh, 10x1.5x37.5, 35thd, 17.5 outside diameter, 10.9, 7114m (generator bracket)

$0.73—1.35

Available in 38 shops

Add to cart

Seal, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24506985
  • Quantity in car: 1
  • Usage: E (L27)

$3.99—5.44

Available in 38 shops

Add to cart

Thermostat, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 24506986
  • Quantity in car: 1
  • Usage: E (L27)

$7.58—9.92

Available in 38 shops

Add to cart

Valve, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 25043843
  • Quantity in car: 1
  • Usage: E (L27)

$5.01—5.24

Available in 2 shops

Add to cart

Plug, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 25513252
  • Quantity in car: 4
  • Cylinder head core hole (cylinder block rear) (cup diameter 1 1/8")
  • Usage: E (L27)

$?

Add to cart

Seal, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 25523161
  • Quantity in car: 1
  • Exhaust crossover pipe (to right-hand exhaust manifold)
  • Usage: E (L27)

$0.62

Available in 1 shop

Add to cart

Washer, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 25525493
  • Quantity in car: 1
  • Usage: E (L27), E (L27)

$0.59—5.98

Available in 38 shops

Add to cart

Bolt, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 25525953
  • Quantity in car: 4
  • Cylinder head (upper center)
  • Usage: E (L27)

$3.34

Available in 1 shop

Add to cart

Bolt, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 25527831
  • Quantity in car: 4
  • Cylinder head (to cylinder block inner row center end-outer row center) (7/16-14x3.24") (inner)
  • Usage: E (L27)

$3.63—6.96

Available in 38 shops

Add to cart

Flange, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 25530037
  • Quantity in car: 1
  • Exhaust manifold pipe (crossover rear)
  • Usage: E (L27)

$?

Add to cart

Tensioner, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 25530076
  • Quantity in car: 1
  • Drive belt
  • Usage: E (L27)

$1.47

Available in 1 shop

Add to cart

Brace LH, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 25530763
  • Quantity in car: 1
  • Exhaust manifold
  • Usage: E (L27)

$?

Add to cart

Brace LH, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 25530763
  • Quantity in car: 1
  • Exhaust manifold (with separator manifold & cross over pipe)
  • Usage: E (L27) (1ST DES)

$?

Add to cart

Retainer, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 25531836
  • Quantity in car: 1
  • Valve lifter guide
  • Usage: E (L27)

$?

Add to cart

Bracket, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 25532104
  • Quantity in car: 1
  • Engine mount strut bracket ("when using this bracket on cars which have a bracket with a washer welded to it as a spacer, it will be necessary to also use part number 1985797 as a spacer.") (on left-hand cylinder block)
  • Usage: E (L27)

$3.02

Available in 1 shop

Add to cart

Guide, engine assembly 3.8l v6 (l27/3.8l)

  • OEM part number: 25532387
  • Quantity in car: 2
  • Valve lifter push rod (at rocker armature)
  • Usage: E (L27)

$?

Add to cart

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