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  1. Home
  2. GMC Trucks
  3. 2003
  4. Envoy XL 2WD
  5. Engine Straight 6 Cylinders

2003 GMC Trucks Envoy XL 2WD engine straight 6 cylinders parts catalog

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Seal, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12561155
  • Quantity in car: 1
  • Engine coolant thermostat housing (O-ring)
  • Usage: ST1 (LL8)

$7.24—14.42

Available in 38 shops

Add to cart

Sensor, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12564512
  • Quantity in car: 1
  • Engine coolant temp (2-way female)
  • Usage: ST1 (LL8), ST1 (LL8)

$0.28—32.38

Available in 2 shops

Add to cart

Bolt, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12565425
  • Quantity in car: 1
  • Camshaft sprocket (m10x1.5-6gx59mm material:medium carbon alloy stl.)
  • Usage: ST1 (LL8), ST1 (LL8)

$2.98—3.63

Available in 38 shops

Add to cart

Spacer, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12567157
  • Quantity in car: 1
  • Engine front cover bolt
  • Usage: ST1 (LL8), ST1 (LL8)

$2.86—3.58

Available in 38 shops

Add to cart

Shoe, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12568766
  • Quantity in car: 1
  • Timing chain tensioner
  • Usage: ST1 (LL8), ST1 (LL8)

$9.89—19.24

Available in 38 shops

Add to cart

Actuator, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12569502
  • Quantity in car: 1
  • Camshaft position
  • Usage: ST1 (LL8)

$126.50—138.37

Available in 38 shops

Add to cart

Chain, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12571725
  • Quantity in car: 1
  • Camshaft tmg
  • Usage: ST1 (LL8), ST1 (LL8)

$53.03—58.03

Available in 38 shops

Add to cart

Washer, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12573950
  • Quantity in car: 1
  • Crankshaft balancer (friction type washer)
  • Usage: ST1 (LL8)

$9.52—10.19

Available in 2 shops

Add to cart

Washer, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12573950
  • Quantity in car: 1
  • Crankshaft balancer (washer is flat & used on smooth heads up display balanced.for second design see 12578073) (friction type washer)
  • Usage: ST1 (LL8) (1ST DES)

$9.52—10.19

Available in 2 shops

Add to cart

Guide, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12575159
  • Quantity in car: 1
  • Timing chain (fixed left-hand)
  • Usage: ST1 (LL8)

$16.34—28.90

Available in 38 shops

Add to cart

Balancer, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12578069
  • Quantity in car: 1
  • Crankshaft (requires seal kit 89017622)
  • Usage: ST1 (LL8)

$75.23—96.31

Available in 38 shops

Add to cart

Balancer, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12578069
  • Quantity in car: 1
  • Crankshaft (has a step on the hub for retainment of friction washer) (requires seal kit 89017622)
  • Usage: ST1 (LL8), ST1 (LL8)

$75.23—96.31

Available in 38 shops

Add to cart

Washer, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12578073
  • Quantity in car: 1
  • Crankshaft balancer (washer has lip & used on balancer with step) (flat, 33 inside diameter, 45.5 outside diameter, 5 thick)
  • Usage: ST1 (LL8)

$4.59—8.87

Available in 38 shops

Add to cart

Washer, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12578073
  • Quantity in car: 1
  • Usage: ST1 (LL8) (2ND DES)

$4.59—8.87

Available in 38 shops

Add to cart

Tensioner, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12598504
  • Quantity in car: 1
  • Timing chain
  • Usage: ST1 (LL8)

$33.63—59.46

Available in 38 shops

Add to cart

Cover, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12601932
  • Quantity in car: 1
  • Usage: ST1 (LL8)

$0.53

Available in 1 shop

Add to cart

Cover, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12601932
  • Quantity in car: 1
  • Engine front (with oil pmp) (includes seal (front cover), gears, plug and relief valve) (no gasket used, use room temperature vulcanizing 12378521) (second design cover for use with flat seal at oil pump pick-up
  • Usage: ST1 (LL8)

$0.53

Available in 1 shop

Add to cart

Housing, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12620112
  • Quantity in car: 1
  • Engine coolant thermostat (thermostat, seal, to water pump)
  • Usage: ST1 (LL8)

$29.73—45.10

Available in 38 shops

Add to cart

Pump, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 12620226
  • Quantity in car: 1
  • Water (with gasket)
  • Usage: ST1 (LL8)

$93.58—106.81

Available in 38 shops

Add to cart

Actuator, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 19179010
  • Quantity in car: 1
  • Camshaft position
  • Usage: ST1 (LL8)

$115.50—236.08

Available in 2 shops

Add to cart

Sprocket, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 24100061
  • Quantity in car: 1
  • Usage: ST1 (LL8), ST1 (LL8)

$55.50—100.04

Available in 38 shops

Add to cart

Bolt, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 24100263
  • Quantity in car: 1
  • Camshaft position actuator (m10x1.5x103mm)
  • Usage: ST1 (LL8)

$6.51—12.21

Available in 38 shops

Add to cart

Sprocket, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 24100362
  • Quantity in car: 1
  • Camshaft (includes pinion)
  • Usage: ST1 (LL8), ST1 (LL8)

$37.58—70.78

Available in 38 shops

Add to cart

Bolt, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 24576757
  • Quantity in car: 4
  • Water pump pulley (m8x1.25x19, 10.9)
  • Usage: ST1 (LL8), ST1 (LL8)

$4.38—7.99

Available in 38 shops

Add to cart

Gasket, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 24576956
  • Quantity in car: 1
  • Water pump
  • Usage: ST1 (LL8), ST1 (LL8)

$4.21—8.90

Available in 38 shops

Add to cart

Outlet, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 24576963
  • Quantity in car: 1
  • Water
  • Usage: ST1 (LL8), ST1 (LL8)

$43.05—92.33

Available in 37 shops

Add to cart

Seal, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 24576967
  • Quantity in car: 1
  • Coolant outlet (O-ring)
  • Usage: ST1 (LL8), ST1 (LL8)

$4.75—9.71

Available in 38 shops

Add to cart

Pulley, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 24576970
  • Quantity in car: 1
  • Water pump
  • Usage: ST1 (LL8), ST1 (LL8)

$9.52—175.10

Available in 38 shops

Add to cart

Guide, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 24577380
  • Quantity in car: 1
  • Timing chain (top of engine)
  • Usage: ST1 (LL8)

$50.06—88.62

Available in 38 shops

Add to cart

Seal kit, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 89017621
  • Quantity in car: 1
  • Crankshaft front oil (for use with original 2002-03 crankshaft-smooth hub balancer;2nd design (12578069)-balancer has a step-on the hub use with 12574668 seal)
  • Usage: ST1 (LL8)

$14.26—16.04

Available in 38 shops

Add to cart

Seal kit, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 89017621
  • Quantity in car: 1
  • Crankshaft front oil (smooth hub.for second design see 89017622)
  • Usage: ST1 (LL8) (1ST DES)

$14.26—16.04

Available in 38 shops

Add to cart

Seal kit, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 89017622
  • Quantity in car: 1
  • Crankshaft front oil (balancers have a step on the hub for retainment of friction washer.1st design 89017621)
  • Usage: ST1 (LL8) (2ND DES)

$8.59—13.74

Available in 38 shops

Add to cart

Seal kit, engine assembly 4.2l l6 cooling related, front end drive (ll8/4.2s)

  • OEM part number: 89017622
  • Quantity in car: 1
  • Crankshaft front oil (balancers have a step on the hub for retainment of friction washer)
  • Usage: ST1 (LL8)

$8.59—13.74

Available in 38 shops

Add to cart

Valve, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 01997278
  • Quantity in car: 1
  • Evaporative emission canister purge solenoid (without bracket)
  • Usage: ST1 (LL8)

$?

Add to cart

Pinion, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 03522352
  • Quantity in car: 2
  • Cylinder head location (hollow dowel, 15.675x28, cham both ends, sae 12l14, zp)
  • Usage: ST1 (LL8), ST1 (LL8)

$?

Add to cart

Pinion, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 03525915
  • Quantity in car: 2
  • Engine front cover location (dowel, 5.99x17.25, cham both ends, 10.9)
  • Usage: ST1 (LL8), ST1 (LL8)

$?

Add to cart

Pinion, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 03525915
  • Quantity in car: 2
  • Crankshaft rear oil seal housing location (dowel, 5.99x17.25, cham both ends, 10.9)
  • Usage: ST1 (LL8), ST1 (LL8)

$?

Add to cart

Plug, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 09427693
  • Quantity in car: 1
  • Cup 5/8, corrosion resistant steel (engine block oil gallery)

$?

Add to cart

Bolt, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 11517518
  • Quantity in car: 1
  • Hex flanged head, m6x1x20, 17.9 thread, 14.2 outside diameter, 9.8, tin zinc (evaporative emission canister purge solenoid valve bracket)

$2.90—3.31

Available in 38 shops

Add to cart

Bolt, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 11517590
  • Quantity in car: 8
  • Hex flanged head m6x1x25, 21.5 thread, 14.2 outside diameter, 9.8, 7114m, machine, header-point (crankshaft rear oil seal housing)

$0.47—2.81

Available in 2 shops

Add to cart

Plug, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 11561430
  • Quantity in car: 5
  • Engine block oil gallery (m16x1.5x23, 1010 steel, 3044gmw.with aluminum washer, sealant)
  • Usage: ST1 (LL8), ST1 (LL8)

$2.43—3.00

Available in 38 shops

Add to cart

Bolt, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 11569841
  • Quantity in car: 14
  • Crankshaft bearing cap (m10x133.5, 48.5 thread, 22.6 outside diameter, 10.9)
  • Usage: ST1 (LL8)

$3.38—10.22

Available in 38 shops

Add to cart

Bolt, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 11570716
  • Quantity in car: 8
  • Automatic transmission flexible plate (m10x1x19.1, 15 thread)
  • Usage: ST1 (LL8)

$2.29—2.89

Available in 38 shops

Add to cart

Bolt, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 11570931
  • Quantity in car: 14
  • Crankshaft bearing cap (hexagon flanged head, m10x1.5x140, 5x140, 52.5 thread, 22.5 outside diameter, 10.9)
  • Usage: ST1 (LL8)

$2.20—3.56

Available in 2 shops

Add to cart

Plug, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 11588949
  • Quantity in car: 2
  • M16x1.5x14, 24 outside diameter, sae 1010 steel, gmw3044, with aluminum washer (engine block oil gallery)

$5.16—12.11

Available in 38 shops

Add to cart

Bolt, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 11589241
  • Quantity in car: 1
  • Hex flanged head, m6x1x20, 17.5 thread, 14.2 outside diameter, 8.8, gmw3359 (evaporative emission canister purge solenoid valve bracket)

$2.54—4.45

Available in 38 shops

Add to cart

Bolt, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 11589241
  • Quantity in car: 1
  • Hex flanged head, m6x1x20, 17.5 thread, 14.2 outside diameter, 8.8, gmw3359 (crankshaft position sensor)

$2.54—4.45

Available in 38 shops

Add to cart

Plug, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 11609289
  • Quantity in car: 1
  • Hexagon, m28x1.25x13, 10.9, gmw3044, int driver with thread seal 9985 (engine coolant heater hole)

$9.11—9.52

Available in 2 shops

Add to cart

Bolt, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 11609792
  • Quantity in car: 1
  • Crankshaft balancer (hexagon head washer, m16x2)
  • Usage: ST1 (LL8)

$7.80—10.49

Available in 38 shops

Add to cart

Sealant, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12378521
  • Room temperature vulcanizing engine silicone 5.3oz cart (crankshaft rear oil seal housing)

$11.80—50.15

Available in 39 shops

Add to cart

Ring kit, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12482718
  • Quantity in car: 6
  • Piston (for use with original 2002 piston with 1.2mm lower compressor ring;if piston has been replaced with piston 12585784, use ring kit 89060378 with 1.5mm lower compression ring) (lower compression ring is 1.2mm thick without scaper groove.)
  • Usage: ST1 (LL8)

$39.82—44.59

Available in 2 shops

Add to cart

Bolt, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12552947
  • Quantity in car: 12
  • Usage: ST1 (LL8), ST1 (LL8)

$4.76—5.78

Available in 38 shops

Add to cart

Bolt, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12552947
  • Quantity in car: 12
  • Connect rod (mj9x1.0-4h6hx61.9 long)
  • Usage: ST1 (LL8)

$4.76—5.78

Available in 38 shops

Add to cart

Heater, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12560179
  • Quantity in car: 1
  • Engine coolant
  • Usage: ST1 (LL8), ST1 (K05)

$30.10—33.69

Available in 2 shops

Add to cart

Heater, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12560179
  • Quantity in car: 1
  • Engine coolant (with 3-pinion and brass color)
  • Usage: ST1 (LL8, K05)

$30.10—33.69

Available in 2 shops

Add to cart

Stud, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12564353
  • Quantity in car: 1
  • Starter (upper)
  • Usage: ST1 (LL8), ST1 (LL8)

$3.64—4.13

Available in 38 shops

Add to cart

Spacer, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12567157
  • Quantity in car: 1
  • Engine front cover bolt
  • Usage: ST1 (LL8), ST1 (LL8)

$2.86—3.58

Available in 38 shops

Add to cart

Sensor, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12567446
  • Quantity in car: 2
  • Knock
  • Usage: ST1 (LL8), ST1 (LL8)

$22.66—26.92

Available in 38 shops

Add to cart

Sensor, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12567712
  • Quantity in car: 1
  • Crankshaft position
  • Usage: ST1 (LL8)

$23.02—27.27

Available in 38 shops

Add to cart

Sensor, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12567712
  • Quantity in car: 1
  • Crankshaft position (with straight connect)
  • Usage: ST1 (LL8)

$23.02—27.27

Available in 38 shops

Add to cart

Bolt, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12567724
  • Quantity in car: 8
  • Automatic transmission flexible plate (m10x1.5-4g) (coarse threads) (second design see 12568933)
  • Usage: ST1 (LL8, M30) (1ST DES)

$5.37—6.02

Available in 2 shops

Add to cart

Fitting, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12567908
  • Quantity in car: 1
  • Heater outlet hose
  • Usage: ST1 (LL8), ST1 (LL8)

$7.50—14.12

Available in 38 shops

Add to cart

Bolt, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12568933
  • Quantity in car: 8
  • Automatic transmission flexible plate (m10x1.0x30mm) (fine threads) (first design see 12567724)
  • Usage: ST1 (LL8, M30) (2ND DES)

$2.89—3.98

Available in 38 shops

Add to cart

Bolt, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12568933
  • Quantity in car: 8
  • Automatic transmission flexible plate (m10x1.0x30mm) (fine threads)
  • Usage: ST1 (LL8), ST1 (LL8)

$2.89—3.98

Available in 38 shops

Add to cart

Pinion, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12569598
  • Quantity in car: 2
  • Trans location
  • Usage: ST1 (LL8), ST1 (LL8)

$2.86—3.94

Available in 38 shops

Add to cart

Washer, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12573950
  • Quantity in car: 1
  • Usage: ST1 (LL8), ST1 (LL8) (1ST DES)

$9.52—10.19

Available in 2 shops

Add to cart

Rod, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12574879
  • Quantity in car: 6
  • Usage: ST1 (LL8)

$51.46—57.90

Available in 38 shops

Add to cart

Plate, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12576272
  • Quantity in car: 1
  • Automatic transmission flexible
  • Usage: ST1 (LL8, M30)

$53.81—95.25

Available in 38 shops

Add to cart

Plate, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12576272
  • Quantity in car: 1
  • Automatic transmission flexible (for use with 280 millimeter torque converters)
  • Usage: ST1 (LL8, M30)

$53.81—95.25

Available in 38 shops

Add to cart

Balancer, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12578069
  • Quantity in car: 1
  • Usage: ST1 (LL8), ST1 (LL8), ST1 (LL8)

$75.23—96.31

Available in 38 shops

Add to cart

Washer, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12578073
  • Quantity in car: 1
  • Usage: ST1 (LL8)

$4.59—8.87

Available in 38 shops

Add to cart

Washer, engine assembly 4.2l l6 block and internal parts (ll8/4.2s)

  • OEM part number: 12578073
  • Quantity in car: 1
  • Crankshaft balancer (washer has lip & used on balancer with step.for first design see 12573950) (flat, 33 inside diameter, 45.5 outside diameter, 5 thick, sae1075)
  • Usage: ST1 (LL8) (2ND DES)

$4.59—8.87

Available in 38 shops

Add to cart

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