Engine Assembly-Manifolds & Related Parts fit your 2018 Cadillac CT6

My Vehicle Change Vehicle

2018 Cadillac CT6

My Vehicle Change Vehicle

2018 Cadillac CT6

Categories Close X

You have selected

Engine

Other Categories

Body Moldings, Sheet Metal, Rear Compartment Hardware, Roof Hardware

Body Mounting, Air Conditioning, Audio/Entertainment

Body Wiring, Roof Trim

Brakes

Brakes, Rear Axle, Propeller Shaft, Wheels, Tires

Cooling System, Grille, Oil System

Frames, Springs, Shocks, Bumpers

Front End Sheet Metal, Heater

Front Suspension, Steering

Fuel System, Exhaust, Emission System

Interior Trim, Front Seat Trim, Seat Belts

Rear Glass, Seat Parts, Adjuster

Rear Seat Trim, Carpet

Starter, Generator, Ignition, Electrical, Lamps

Transfer Case

Transmission - Automatic

Windshield, Wiper, Mirrors, Instrument Panel, Console, Doors

Parts Questions

Sort by:

Recommended

Part No. & Part Description

Price

Part No. &
Part Description

12668429
SEAL, Engine Vacuum Pump, SEAL,VACUUM PUMP
MSRP: $8.24
$3.96
1
Add To Cart

NUT, Catalytic Converter
15032594
NUT, CATALYTIC CONVERTER (AT ENGINE)(HEXAGON M10X1.5)(3.613)
Fitting Vehicle Options:
KH,KJ69(LTG), KL69(LTG)
Require Quantity:
04
Package Quantity:
10
MSRP: $6.00
$4.01
10
Add To Cart
11588835
NUT, HEX FLANGED HEAD, M8X1.25, 10 THICK, 17.6 OUTSIDE DIAMETER, 409CB, M6340(EXHAUST MANIFOLD BRACE)(8.915)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $6.99
$4.24
1
Add To Cart
11588835
NUT, HEX FLANGED HEAD, M8X1.25, 10 THICK, 17.6 OUTSIDE DIAMETER, 409CB, M6340(TURBO)(8.915)
- Require Quantity:
  04
- Package Quantity:
  1
MSRP: $6.99
$4.24
1
Add To Cart

BOLT, Intake & Exhaust Manifold
11588352
BOLT, INTAKE MANIFOLD(M6X1X48)
Fitting Vehicle Options:
KH,KJ(LTG), KL(LTG,MRD,HP9)
MSRP: $7.19
$4.57
1
Add To Cart
11546600
BOLT, EXHAUST MANIFOLD(M8X1.25X30.7)
- Fitting Vehicle Options:
  KH,KJ,KL(LTG)
- Require Quantity:
  05
- Package Quantity:
  1
MSRP: $9.08
$6.08
1
Add To Cart
11547493
BOLT, INTAKE MANIFOLD
- Fitting Vehicle Options:
  KH,KJ,KL,KM(LGX)
- Require Quantity:
  08
- Package Quantity:
  1
MSRP: $16.62
$10.57
1
Add To Cart
11548951
BOLT, LOWER INTAKE MANIFOLD
- Fitting Vehicle Options:
  KJ,KL,KM(LGW)
- Require Quantity:
  08
- Package Quantity:
  1
MSRP: $63.10
$40.11
1
Add To Cart
11611352
BOLT, INTAKE MANIFOLD(M6X1X62)
- Fitting Vehicle Options:
  KH,KJ(LTG), KL(LTG,MRD,HP9)
- Require Quantity:
  05
- Package Quantity:
  1
MSRP: $4.91
$3.12
1
Add To Cart

SENSOR, Engine Oil Pressure/Temperature
55488247
SENSOR, ENGINE OIL PRESSURE(CONNECT POKE-YOKE (ALIGNMENT TAB) ON VOLTAGE SUPPLY PINION OF TERMINAL)(MATING CONNECT USE 19301717 3-WAY W/LEADS)(HAS FLAT/OVAL CONNECT)
Fitting Vehicle Options:
KH,KJ69(LTG,M5N), KH,KJ,KL,KM69(M5N), KJ,KL,KM69(M5X), KL69(LTG,MRD)
Replaced By:
12727099
MSRP: $45.27
$24.00
1
Add To Cart
12661808
SENSOR, ENGINE OIL PRESSURE(CONNECT POKEY YOKE ON VOLTAGE OUTPUT PINION OF TERMINAL)(3-WAY FEMALE GT150)
- Fitting Vehicle Options:
  KH,KJ69(LTG,M5N), KL69(LTG,MRD)
- Replaced By:
  25202591
MSRP: $114.63
$57.80
1
Add To Cart

11588717
BOLT, Engine Vacuum Pump, BOLT,VACUUM PUMP(PART OF 506)(M6X1X45, 14.2 OUTSIDE DIAMETER)(17.7 THREAD, 8.8 STEEL, M-POINT)(2.383)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $7.53
$4.78
1
Add To Cart

11588717
BOLT, Multi Port Fuel Injection Throttle Body, BOLT,THROTTLE BODY(M6X1X45, 14.2 OUTSIDE DIAMETER)(17.7 THREAD, 8.8 STEEL, M-POINT)(2.383)
- Require Quantity:
  04
- Package Quantity:
  1
MSRP: $7.53
$4.78
1
Add To Cart

SENSOR, Computer Control Sensors
12643955
SENSOR, MAP
Fitting Vehicle Options:
KH,KJ69(LTG,M5N), KL69(LTG,MRD)
Replaced By:
25203477
MSRP: $38.74
$20.53
1
Add To Cart
12650600
SENSOR, MAP(INCLUDES 6)
- Fitting Vehicle Options:
  KH,KJ,KL,KM69(LGX)
MSRP: $48.58
$26.72
1
Add To Cart
12652845
SENSOR, HEATED OXYGEN (PRE-CATALYST BANK 1 SENSOR 1)(MATING CONNECT USE 19330671)
- Fitting Vehicle Options:
  KH,KJ69(LTG), KL69(LTG)
MSRP: $90.62
$43.65
1
Add To Cart

12686657
PUMP, Engine Vacuum Pump, PUMP,VACUUM(INCLUDES 503-505,507,534)
MSRP: $156.44
$75.34
1
Add To Cart

12648665
SEAL, Manifold to Cylinder Head, SEAL,INTAKE MANIFOLD(*KIT1)
- Require Quantity:
  06
- Package Quantity:
  30
MSRP: $8.42
$5.35
30
Add To Cart

VALVE, Fuel Tank Evaporator/Purge Control
12630282
VALVE, EVAP EMISSION CANISTER PURGE SOLENOID(INCLUDES BOLT)
Fitting Vehicle Options:
KH,KJ,KL,KM69(LGX)
MSRP: $64.66
$34.28
1
Add To Cart
12632174
VALVE, EVAP EMISSION CANISTER PURGE SOLENOID
- Fitting Vehicle Options:
  KH,KJ69(LTG), KL69(LTG)
MSRP: $59.46
$31.51
1
Add To Cart

12633917
GASKET, Fuel Pump, GASKET,FUEL PUMP BRACKET(PART OF 500)
MSRP: $19.25
$10.73
1
Add To Cart

12634281
SEAL, Engine Coolant By-Pass, SEAL,ENGINE COOLANT AIR BLEED PIPE (O RING)(PART OF 509)
MSRP: $7.21
$4.57
1
Add To Cart

12609878
GASKET, Catalytic Converter, GASKET,CATALYTIC CONVERTER(GROOVED RING STYLE)(3.611)
MSRP: $33.23
$21.14
1
Add To Cart

12624939
GASKET, Turbocharger/Supercharger, GASKET,TURBO(GROOVED RING STYLE GASKET)
MSRP: $15.34
$9.26
1
Add To Cart

BOLT, Computer Control Sensors
11562253
BOLT, MAP SENSOR(M6X2.22X24)
Fitting Vehicle Options:
KH,KJ69(LTG), KL69(LTG)
MSRP: $7.20
$4.57
1
Add To Cart
11547321
BOLT, MAP SENSOR(M6X2.22X24)(SCREW-PANHEAD)
- Fitting Vehicle Options:
  KH,KJ,KL,KM69(LGX)
MSRP: $8.20
$4.57
1
Add To Cart

12654112
GASKET, Engine Vacuum Pump, GASKET,VACUUM PUMP(PART OF 506)
MSRP: $108.58
$52.29
1
Add To Cart

BODY, Fuel Injection Air Meter
12681472
BODY, THROTTLE (W/SENSOR)(MATES W/CONNECT 13587193 6-WAY FEMALE W/LEADS)
Fitting Vehicle Options:
KH,KJ(LTG), KL(LTG,MRD,HP9)
MSRP: $321.06
$154.63
1
Add To Cart
12676296
BODY, THROTTLE (W/SENSOR)(REFER TO SERVICE INFORMATION FOR APPLICATION)
- Fitting Vehicle Options:
  KH,KJ,KL,KM69(LGX)
MSRP: $232.60
$112.02
1
Add To Cart

11518792
RETAINER, Engine Vacuum Pump, RETAINER,VACUUM PUMP BOLT(PART OF 506)(7MM LONG)(FOR M6 BOLT)(1.428)
- Require Quantity:
  03
- Package Quantity:
  1
MSRP: $7.03
$4.46
1
Add To Cart

SENSOR, Distributor (also Knock Sensor)

12674702
SENSOR, CRANKSHAFT POSITION(INCLUDES 517)(IF NEEDED CONNECTOR IS 84601390)(W/O BOLT AND RETAINER)
MSRP: $84.66
$35.56
1
Add To Cart
12623095
SENSOR, KNOCK(INCLUDES 515)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $40.92
$21.68
1
Add To Cart

TUBE, Engine Crankcase Ventilation
12681589
TUBE, PCV(CAM COVER TO TURBO)
Fitting Vehicle Options:
KH,KJ(LTG)(EXC HP9), KL(LTG,MRD,HP9)
Replaced By:
25201122
MSRP: $64.32
$34.09
1
Add To Cart
25201118
TUBE, PCV(INCLUDES 512,513)(CAM COVER TO AIR INLET)
- Fitting Vehicle Options:
  KH,KJ,KL(LTG), KH,KJ(LTG)(EXC HP9), KL(LTG,MRD,HP9)
- Replaced By:
  25202896
MSRP: $96.18
$50.98
1
Add To Cart

12600313
SEAL, Fuel Pump Mounting, SEAL,FUEL PUMP HOUSING(O RING)(PART OF 500)
MSRP: $12.90
$7.19
1
Add To Cart

12610684
RETAINER, Fuel Pump, RETAINER,FUEL PUMP BOLT(PART OF 500)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $10.38
$5.50
1
Add To Cart

GASKET, Manifold to Cylinder Head

12655276
GASKET, INTAKE MANIFOLD
MSRP: $25.59
$15.48
1
Add To Cart
12657167
GASKET, EXHAUST MANIFOLD(PART OF 612)
MSRP: $13.62
$8.66
1
Add To Cart

SHIELD, Fuel Injection
12627088
SHIELD, FUEL INJECTION FUEL RAIL NOISE
Fitting Vehicle Options:
KH,KJ(LTG), KL(LTG,MRD,HP9)
MSRP: $24.56
$13.51
1
Add To Cart
12665472
SHIELD, FUEL INJECTION FUEL RAIL NOISE(LOWER)
- Fitting Vehicle Options:
  KJ,KL,KM(LGW), KH,KJ,KL,KM(LGX)
MSRP: $10.94
$5.80
1
Add To Cart
12665473
SHIELD, FUEL INJECTION FUEL RAIL NOISE(UPPER)
- Fitting Vehicle Options:
  KJ,KL,KM(LGW), KH,KJ,KL,KM(LGX)
MSRP: $10.32
$5.68
1
Add To Cart

12662045
FOLLOWER, Engine Valve Lifter Cam, FOLLOWER,VALVE LIFTER(OPTIONAL W/ 55569519)(FUEL PUMP)
- Replaced By:
  12718357
MSRP: $37.37
$22.58
1
Add To Cart

11609870
STUD, Exhaust Pipe, STUD,TURBO EXHAUST PIPE(M10X1.5X20.25,M10X1.5X14.75)
- Require Quantity:
  04
- Package Quantity:
  1
MSRP: $10.58
$7.09

11546632
BOLT, Fuel Injection, BOLT,FUEL INJECTION FUEL RAIL(M8X1.25X50.85)(MUST BLACK ENAMEL USED TOGETHER WITH 12654645)
- Require Quantity:
  04
- Package Quantity:
  1
MSRP: $6.66
$4.23
1
Add To Cart

11609953
STUD, Intake & Exhaust Manifold, STUD,EXHAUST MANIFOLD(PART OF 612)(M8X1.25X11.5,M8X1.25X24,46 TL,STAINLESS)
- Require Quantity:
  06
- Package Quantity:
  1
MSRP: $13.80
$7.31
1
Add To Cart

PIPE, Fuel Line
12627128
PIPE, FUEL FEED INTERMEDIATE(PUMP TO RAIL)
Fitting Vehicle Options:
KH,KJ69(LTG,M5N,NTB,NUB)(EXC HP9), KL69(LTG,MRD,HP9)
MSRP: $108.56
$60.52
1
Add To Cart
12683197
PIPE, FUEL FEED INTERMEDIATE
- Fitting Vehicle Options:
  KJ,KL,KM(LGW,M5X)
- Replaced By:
  12695903
MSRP: $55.91
$31.18
1
Add To Cart

MANIFOLD, Engine Fuel Intake Manifold
12631023
MANIFOLD, INTAKE
Fitting Vehicle Options:
KH,KJ(LTG), KL(LTG,MRD,HP9)
MSRP: $292.99
$183.74
1
Add To Cart
12662540
MANIFOLD, INTAKE(INCLUDES 7,8)
- Fitting Vehicle Options:
  KJ,KL,KM(LGW)
MSRP: $220.52
$133.27
1
Add To Cart
12674143
MANIFOLD, INTAKE
- Fitting Vehicle Options:
  KH,KJ,KL,KM(LGX)
MSRP: $230.66
$144.67
1
Add To Cart

12632619
COVER, Engine Fuel Intake Manifold, COVER,INTAKE MANIFOLD(COVER ONLY)
MSRP: $203.19
$100.76
1
Add To Cart

12639700
SEAL, Multi Port Fuel Injection Throttle Body, SEAL,THROTTLE BODY
MSRP: $46.42
$24.60
1
Add To Cart

12648341
INSULATOR, Manifold to Cylinder Head, INSULATOR,INTAKE MANIFOLD
- Replaced By:
  12732744
MSRP: $155.81
$99.02
1
Add To Cart

12650097
BRACE, Exhaust Manifold, BRACE,EXHAUST MANIFOLD
MSRP: $23.63
$15.81
1
Add To Cart

12652450
GASKET, Multi Port Fuel Injection Throttle Body, GASKET,THROTTLE BODY(*KIT1)
MSRP: $13.36
$7.45
1
Add To Cart

12656868
SHIELD, Turbocharger/Supercharger, SHIELD,TURBO HEAT
- Replaced By:
  12681317
MSRP: $151.93
$87.29
1
Add To Cart

12657046
PIN, Intake & Exhaust Manifold, PIN,INTAKE MANIFOLD LOCATING(PART OF 1)
MSRP: $10.88
$6.91
1
Add To Cart

12665222
SHIELD, Engine Camshaft & Valve Rocker Cover, SHIELD,CAMSHAFT COVER HEAT
MSRP: $58.60
$37.24
1
Add To Cart

BRACKET, Catalytic Converter
12665369
BRACKET, CATALYTIC CONVERTER BRACE(BLOCK)
Fitting Vehicle Options:
KH,KJ,KL69(LTG)
MSRP: $45.68
$30.56
1
Add To Cart
12672002
BRACKET, CATALYTIC CONVERTER BRACE(AT COVERTER)(LOWER)
- Fitting Vehicle Options:
  KH,KJ,KL(LTG)
MSRP: $8.07
$5.40
1
Add To Cart

12670220
MANIFOLD, Engine Exhaust Manifold, MANIFOLD,EXHAUST(INCLUDES 611,613)
MSRP: $502.56
$317.98
1
Add To Cart

PUMP, Fuel Pump
12672144
PUMP, FUEL(INCLUDES 501,502,530,532)
Fitting Vehicle Options:
KH,KJ(LTG,M5N,NUB)(EXC HP9), KH,KJ(LTG,M5N,NQU)(EXC HP9), KH,KJ(LTG,M5N,NTB)(EXC HP9)
MSRP: $413.15
$196.66
1
Add To Cart
12672144
PUMP, FUEL(INCLUDES 501,502,531,533)
- Fitting Vehicle Options:
  KL(LTG,MRD,HP9)
MSRP: $413.15
$196.66
1
Add To Cart

12674065
CONVERTER, Catalytic Converter, CONVERTER,WARM UP 3WAY CATALYTIC
MSRP: $2073.32
$1383.02
1
Add To Cart

12677727
TUBE, Early Fuel Evaporation, TUBE,EVAP EMISSION CANISTER PURGE
MSRP: $29.60
$15.69
1
Add To Cart

12683453
PIPE, Engine Coolant By-Pass, PIPE,ENGINE COOLANT AIR BLEED(INCLUDES 510)
MSRP: $25.55
$17.09
1
Add To Cart

12700743
GASKET KIT, Manifold to Cylinder Head, GASKET KIT,UPPER INTAKE MANIFOLD(INCLUDES 2)
MSRP: $63.39
$40.30
1
Add To Cart

25201389
COVER, Fuel Pump Pressure, COVER,FUEL PUMP
MSRP: $12.74
$7.10
1
Add To Cart

25201612
SHIELD, Exhaust Manifold, SHIELD,EXHAUST MANIFOLD UPPER HEAT
MSRP: $66.99
$34.96
1
Add To Cart

11547030
BOLT, Turbocharger/Supercharger Cooling, BOLT,CHARGING AIR COOLER COVER(PART OF 11)(M6X1X43)(HEXAGON FLANGE W/SLEEVE)
- Require Quantity:
  08
- Package Quantity:
  1
MSRP: $7.02
$4.46

90537104
PIN, Engine Vacuum Pump, PIN,VACUUM PUMP LOCATING(PART OF 506)(10MM HOLLOW SPLIT PINION)(0.539)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $8.91
$5.65

11588714
BOLT, HEX FLANGED HEAD,M6X1X30,22.7 THREAD,14.2 OUTSIDE DIAMETER,8.8,GMW3359, M-POINT.(PART OF 506)
MSRP: $9.45
$6.01
1
Add To Cart

11588714
BOLT, HEX FLANGED HEAD,M6X1X30,22.7 THREAD,14.2 OUTSIDE DIAMETER,8.8,GMW3359, M-POINT.(TURBO HEAT SHIELD)
- Require Quantity:
  03
- Package Quantity:
  1
MSRP: $9.45
$6.01
1
Add To Cart

11588714
BOLT, HEX FLANGED HEAD,M6X1X30,22.7 THREAD,14.2 OUTSIDE DIAMETER,8.8,GMW3359, M-POINT.(EVAP EMISSION CNSTE PURGE SOLENOID VALVE)
MSRP: $9.45
$6.01
1
Add To Cart

10121502
RETAINER, FITS .250 HOLE,1.01LG.700-OUTSIDE DIAMETER NYLON BLACK(INTAKE MANIFOLD INSULATOR)
- Require Quantity:
  04
- Package Quantity:
  20
MSRP: $2.88
$1.83
20
Add To Cart

11588712
BOLT, HEX FLANGED HEAD,M6X1X20,17.5 THREAD,14.2 O.D.,8.8, GMW3359(FUEL PUMP SHIELD)
- Require Quantity:
  03
- Package Quantity:
  10
MSRP: $7.20
$4.57
10
Add To Cart

11588712
BOLT, HEX FLANGED HEAD,M6X1X20,17.5 THREAD,14.2 O.D.,8.8, GMW3359(PART OF 511)
MSRP: $7.20
$4.57
10
Add To Cart

11588712
BOLT, HEX FLANGED HEAD,M6X1X20,17.5 THREAD,14.2 O.D.,8.8, GMW3359(ENGINE COOLANT AIR BLEED PIPE)
MSRP: $7.20
$4.57
10
Add To Cart

11588712
BOLT, HEX FLANGED HEAD,M6X1X20,17.5 THREAD,14.2 O.D.,8.8, GMW3359(EXHAUST MANIFOLD HEAT SHIELD)
- Require Quantity:
  02
- Package Quantity:
  10
MSRP: $7.20
$4.57
10
Add To Cart

11588712
BOLT, HEX FLANGED HEAD,M6X1X20,17.5 THREAD,14.2 O.D.,8.8, GMW3359(CAMSHAFT COVER HEAT SHIELD)
- Require Quantity:
  04
- Package Quantity:
  10
MSRP: $7.20
$4.57
10
Add To Cart

11589407
BOLT, HEX WASHER HEAD, M8X1.25X35, 23.5 THREAD, 24 OUTSIDE DIAMETER, 10.9, GMW3359, M-POINT.(EXHAUST MANIFOLD BRACE)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $9.16
$5.82
1
Add To Cart

11588723
BOLT, HEX FLANGED HEAD, M8X1.25X25, 18 THREAD, 18 OUTSIDE DIAMETER, 8.8 STEEL, GMW3359, M-POINT(CATALYTIC CONVERTER BRACE)
- Require Quantity:
  06
- Package Quantity:
  1
MSRP: $9.10
$5.69
1
Add To Cart

11562426
BOLT, HEX FLANGED HEAD,M6X1X25,18 THREAD,14.2 OUTSIDE DIAMETER, 10.9 STEEL GMW3359(PART OF 500)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $8.82
$5.61
1
Add To Cart

11562426
BOLT, HEX FLANGED HEAD,M6X1X25,18 THREAD,14.2 OUTSIDE DIAMETER, 10.9 STEEL GMW3359(CRANKSHAFT POSITION SENSOR)
MSRP: $8.82
$5.61
1
Add To Cart

11611351
PLUG, HEXAGON, M28X1.25X13, 10.9 STEEL,GMW3044, INTAKE DRIVER W/THREAD SEAL(ENGINE COOLANT HEATER HOLE)
MSRP: $23.11
$14.68
1
Add To Cart

9427695
PLUG, EXPANSION(CUP),0.75 OUTSIDE DIAMETER,0.26 THICK,STAINLESS STEEL,PLAIN(PART OF 1)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $7.20
$4.57
1
Add To Cart

11561256
BOLT, HEX FLANGED HEAD, M8X1.25X39, 29 THREAD, 18 OUTSIDE DIAMETER, 9.8 STEEL, GMW3359, MAT POINT(PART OF 536)
- Require Quantity:
  02
- Package Quantity:
  1

11561256
BOLT, HEX FLANGED HEAD, M8X1.25X39, 29 THREAD, 18 OUTSIDE DIAMETER, 9.8 STEEL, GMW3359, MAT POINT(PART OF 537)
- Require Quantity:
  02
- Package Quantity:
  1

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 2018 Cadillac CT6 parts. Parts like Engine Assembly-Manifolds & Related Parts are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.0L, 6 Cyl 3.0L, 6 Cyl 3.6L. Model Code: 4 DOOR SEDAN, BASE 4 DOOR SEDAN, PLATINUM 4 DOOR SEDAN, PREMIUM 4 DOOR SEDAN.