2004 Cadillac CTS Engine Parts

This table covers the Camshaft Alignment tools. This is a service tool, not a wear part — match the application in the notes. Read more

One part is listed for the 2004 Cadillac CTS — LISLE 37530.

This table covers the wear sleeves used to restore a Camshaft seal surface. Read more

One part is listed for the 2004 Cadillac CTS — BCA NS99139.

This table covers the seals at each camshaft end. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

One part is listed for the 2004 Cadillac CTS — GM GENUINE 12574477.

This table covers the connecting rods between each piston and the crankshaft. Read more

3 Connecting Rod parts for the 2004 Cadillac CTS come from 2 brands — ENGINETECH and GM GENUINE.

Listed part numbers: ENGINETECH ECR327, ENGINETECH ECR328 and GM GENUINE 12608432.

This table covers the bearings in the connecting-rod big ends. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

10 Connecting Rod Bearing parts for the 2004 Cadillac CTS come from 4 brands — MAHLE / CLEVITE, KING ENGINE BEARINGS, SEALED POWER and 1 other brand. The "Popular" part is MAHLE / CLEVITE CB1877A.

The High Performance section lists 2 options from KING ENGINE BEARINGS — engineered beyond original-equipment specification. KING ENGINE BEARINGS CR6826XPX is listed in this group.

In the Standard Replacement grade, MAHLE / CLEVITE, SEALED POWER, GM GENUINE and 1 other brand supply 8 parts: built to original-equipment specification. A representative part number is MAHLE / CLEVITE CB1877A.

This table covers the Connecting Rod bolts. Read more

One part is listed for the 2004 Cadillac CTS — GM GENUINE 11519680.

This table covers lower / conversion gasket sets for oil-pan and related joints. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration. Read more

9 Conversion / Lower Gasket Set parts for the 2004 Cadillac CTS come from 9 brands — ENGINETECH, FEL-PRO, AJUSA and 6 other brands. The "Popular" part is ENGINETECH GM217CSA.

Part numbers include ENGINETECH GM217CSA, FEL-PRO CS263761 and AJUSA 54277700, among others listed above.

This table covers the crankshafts that turn piston motion into rotation. Read more

2 Crankshaft parts for the 2004 Cadillac CTS come from 2 brands — ENGINETECH and GM GENUINE.

Listed part numbers: ENGINETECH 112950 and GM GENUINE 12623074.

This table covers the main bearings that support the crankshaft in the block. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

6 Crankshaft Main Bearing parts are listed for the 2004 Cadillac CTS, from GM GENUINE, KING ENGINE BEARINGS, MAHLE / CLEVITE and 2 other brands. KING ENGINE BEARINGS MB4272SI carries the "Popular" badge.

Listed part numbers: KING ENGINE BEARINGS MB4272SI, MAHLE / CLEVITE MS2276A and ENGINETECH BC130J, plus the other parts above.

This table covers the Crankshaft Main Bearing Cap bolts. Read more

This group shows a single part: GM GENUINE 12560272.

This table covers the sleeves used to restore a grooved crankshaft seal surface. Read more

3 Crankshaft Repair Sleeve parts are listed for the 2004 Cadillac CTS, from BCA, NATIONAL and WJB / INMOTION PARTS.

This group includes BCA NS99166, NATIONAL 99166 and WJB / INMOTION PARTS WS99166.

This table covers the front and rear seals that keep oil in at the crankshaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

13 Crankshaft Seal parts are listed for the 2004 Cadillac CTS, from GM GENUINE, NATIONAL, ELRING and 6 other brands. FEL-PRO BS40711 carries the "Popular" badge.

This table covers the gaskets that seal the Crankshaft Seal. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

This group shows a single part: ELRING 966530.

This table covers the cylinder heads that close the top of the block. Read more

One part is listed for the 2004 Cadillac CTS — GM GENUINE 19259022.

This table covers the Cylinder Head Alignment Dowel pins. Read more

This group shows a single part: GM GENUINE 12570326.

This table covers the bolts that clamp the cylinder head to the block. Read more

11 Cylinder Head Bolt parts for the 2004 Cadillac CTS come from 7 brands — VICTOR REINZ, FEL-PRO, SKP and 4 other brands. The "Popular" part is ENGINETECH HB258.

This table covers the head gaskets that seal the block to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

14 Cylinder Head Gasket parts for the 2004 Cadillac CTS come from 8 brands — GM GENUINE, APEX, ELRING and 5 other brands. The "Popular" part is GM GENUINE 12634479.

This table covers multi-piece gasket sets for a cylinder-head job. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration. Read more

6 Cylinder Head Gasket Set parts for the 2004 Cadillac CTS come from 5 brands — FEL-PRO, ENGINETECH, APEX and 2 other brands. The "Popular" part is ENGINETECH GM217HSMWB.

Listed part numbers: ENGINETECH GM217HSMWB, FEL-PRO HS26376PT and APEX AHS11064, plus the other parts above.

This table covers the block heaters that warm the coolant or oil in cold weather. Read more

2 Engine Block Heater parts are listed for the 2004 Cadillac CTS, from GM GENUINE and KAT'S HEATERS.

Listed part numbers: GM GENUINE 12587380 and KAT'S HEATERS 11810.

This table covers the Engine covers. Read more

This group shows a single part: TECHPRO GM1228140.

This table covers full gasket kits covering the joints opened in an engine rebuild. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration. Read more

2 Engine Kit Gasket Set parts for the 2004 Cadillac CTS come from 2 brands — AJUSA and ENGINETECH.

This group includes AJUSA 50551300 and ENGINETECH GM217K1.

This table covers the Engine rebuild kits. Read more

This group shows a single part: ENGINETECH RCGM217P.

This table covers the exhaust valves that let combustion gas out of the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

5 Exhaust Valve parts are listed for the 2004 Cadillac CTS, from MELLING, ENGINETECH, GM GENUINE and 2 other brands. MELLING V3082 carries the "Popular" badge.

Part numbers include MELLING V3082, ENGINETECH V4431 and GM GENUINE 12575354, among others listed above.

This table covers the Expansion plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

3 Expansion Plug parts for the 2004 Cadillac CTS come from 2 brands — DORMAN and MELLING.

Listed part numbers: DORMAN 555104, DORMAN 565104 and MELLING MPE850R.

This table covers the crankshaft pulleys / harmonic balancers at the front of the engine. Read more

4 Harmonic Balancer parts for the 2004 Cadillac CTS come from 4 brands — ATP, DORMAN, GM GENUINE and 1 other brand.

Part numbers include ATP 102209, DORMAN 594452 and GM GENUINE 12597654, among others listed above.

This table covers the Harmonic Balancer bolts. Read more

2 Harmonic Balancer Bolt parts are listed for the 2004 Cadillac CTS, from DORMAN and GM GENUINE.

Listed part numbers: DORMAN 595005 and GM GENUINE 11549124.

This table covers the Intake manifolds. Typical signs include an exhaust tick, a vacuum leak, or a gasket that has burned through. Replace the gaskets and hardware; a warped flange will leak with a new gasket alone. Read more

One part is listed for the 2004 Cadillac CTS — GM GENUINE 12705324.

This table covers the Intake Manifold bolts. Read more

This group shows a single part: GM GENUINE 11588733.

This table covers the gaskets between the intake manifold and the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

5 Intake Manifold Gasket parts for the 2004 Cadillac CTS come from 5 brands — FEL-PRO, APEX, GM GENUINE and 2 other brands. The "Popular" part is FEL-PRO MS96969.

Part numbers include FEL-PRO MS96969, APEX AMS11644 and GM GENUINE 12598158, among others listed above.

This table covers the gaskets that seal the Intake Plenum. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

6 Intake Plenum Gasket parts are listed for the 2004 Cadillac CTS, from FEL-PRO, ULTRA-POWER, APEX and 3 other brands. FEL-PRO MS96976 carries the "Popular" badge.

Part numbers include FEL-PRO MS96976 and APEX AMS11643, among others listed above.

This table covers the intake valves that let air (and fuel, on port-injected engines) into the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

5 Intake Valve parts are listed for the 2004 Cadillac CTS, from GM GENUINE, ENGINETECH, MELLING and 2 other brands. GM GENUINE 12575351 carries the "Popular" badge.

This group includes GM GENUINE 12575351, ENGINETECH V4432 and MELLING V3081 and the remaining parts above.

This table covers the mounts that hold the engine to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes. Read more

5 Motor Mount parts are listed for the 2004 Cadillac CTS, from PIONEER, SKP, ANCHOR and 1 other brand. ANCHOR 3149 carries the "Popular" badge.

In the Economy grade, SKP supplies 1 part: the catalog's value-priced group. A representative part number is SKP SKM3149.

The Standard Replacement section: 4 options from PIONEER, ANCHOR and DEA / MARMON RIDE CONTROL. ANCHOR 3149 is listed in this group.

Part numbers include ANCHOR 3149, SKP SKM3149 and DEA / MARMON RIDE CONTROL A5722, among others listed above.

This table covers the Motor Mount kits. Read more

One part is listed for the 2004 Cadillac CTS — ANCHOR 300509.

This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable. Read more

25 Oil parts are listed for the 2004 Cadillac CTS, from MOBIL, VALVOLINE, LIQUI MOLY and 3 other brands. LIQUI MOLY 20228 carries the "Popular" badge.

In the Full Synthetic grade, MOBIL, LIQUI MOLY, VALVOLINE and 3 other brands supply 18 parts: full-synthetic oils. A representative part number is LIQUI MOLY 20228.

The High Mileage (>75,000 Miles) section lists 5 options from MOBIL and VALVOLINE — oils grouped for high-mileage engines. MOBIL 123842 is listed in this group.

In the Synthetic Blend grade, VALVOLINE supplies 2 parts: synthetic-blend oils. A representative part number is VALVOLINE 797975.

This table covers the seals at the Oil Cooler. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

This group shows a single part: GM GENUINE 90409175.

This table covers the Oil Dipstick tubes. Read more

One part is listed for the 2004 Cadillac CTS — GM GENUINE 12595327.

This table covers the seals at the Oil Dipstick / Tube. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

3 Oil Dipstick / Tube Seal parts for the 2004 Cadillac CTS come from 3 brands — ELRING, FEL-PRO and GM GENUINE.

This group includes ELRING 584210, FEL-PRO 73889 and GM GENUINE 24504031.

This table covers the drain plugs in the oil pan. Read more

7 Oil Drain Plug parts are listed for the 2004 Cadillac CTS, from DORMAN, GM GENUINE, AGS and 2 other brands. DORMAN 090034 carries the "Popular" badge.

Part numbers include DORMAN 090034, GM GENUINE 11562588 and AGS ODP00009, among others listed above.

This table covers the crush washers and gaskets under the oil drain plug. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

5 Oil Drain Plug Gasket parts for the 2004 Cadillac CTS come from 4 brands — VAICO, GM GENUINE, AJUSA and 1 other brand. The "Popular" part is GM GENUINE 12616850.

Listed part numbers: GM GENUINE 12616850, AJUSA 21012700 and ELRING 056130, plus the other parts above.

This table covers the Oil Drain Plug inserts. Read more

This group shows a single part: GM GENUINE 11503302.

This table covers the caps on the oil filler neck. Read more

4 Oil Filler Cap parts are listed for the 2004 Cadillac CTS, from ACDELCO, GATES, MOTORAD and 1 other brand.

Part numbers include ACDELCO FC215, GATES 31103 and MOTORAD MO99, among others listed above.

This table covers the gaskets that seal the Oil Filler Cap. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

4 Oil Filler Cap Gasket parts for the 2004 Cadillac CTS come from 3 brands — ELRING, FEL-PRO and GM GENUINE.

Listed part numbers: ELRING 592250, ELRING 823620 and FEL-PRO 73193, plus the other parts above.

This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive. Read more

29 Oil Filter parts are listed for the 2004 Cadillac CTS, from PUROLATOR, CHAMP / LUBER-FINER, FAMOUS BRAND and 14 other brands. CHAMP / LUBER-FINER P2129 carries the "Popular" badge. They are grouped as Economy, High Performance / Heavy Duty and Standard Replacement, with Economy the largest group at 15 parts from PUROLATOR, CHAMP / LUBER-FINER, FAMOUS BRAND and 6 other brands.

This table covers the Oil Filter adapters. Read more

This group shows a single part: GM GENUINE 12744666.

This table covers the Oil Filter Adapter Gasket O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

4 Oil Filter Adapter Gasket / O-Ring parts for the 2004 Cadillac CTS come from 4 brands — APEX, FEL-PRO, MAHLE / CLEVITE and 1 other brand.

Part numbers include APEX AOM6026, FEL-PRO 72968 and MAHLE / CLEVITE B32224, among others listed above.

This table covers the Oil Filter Bypass valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

One part is listed for the 2004 Cadillac CTS — GM GENUINE 25014612.

This table covers the Oil Filter covers. Read more

3 Oil Filter Cover parts for the 2004 Cadillac CTS come from 3 brands — DORMAN, GM GENUINE and MOTORAD.

Listed part numbers: DORMAN 917046, GM GENUINE 12583470 and MOTORAD MO336.

This table covers the Oil Filter Cover O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

This group shows a single part: GM GENUINE 12577653.

This table covers the gaskets that seal the Oil Filter. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

This group shows a single part: GM GENUINE 12687466.

This table covers the seals at the Oil Filter Housing. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

ELRING supplies both parts for the 2004 Cadillac CTS.

Listed part numbers: ELRING 159460 and ELRING 943050.

This table covers the Oil Galley plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

One part is listed for the 2004 Cadillac CTS — GM GENUINE 12667039.

This table covers the Oil Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

3 Oil Level Sensor parts are listed for the 2004 Cadillac CTS, from GM GENUINE, STANDARD MOTOR PRODUCTS and WELLS.

Part numbers include GM GENUINE 2133945, STANDARD MOTOR PRODUCTS FLS83 and WELLS 5S3016.

This table covers the gaskets between the oil pan and the block. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

One part is listed for the 2004 Cadillac CTS — VICTOR REINZ 703141410.

This table covers the Oil Pan Gasket rivets. Read more

One part is listed for the 2004 Cadillac CTS — GM GENUINE 12558759.

This table covers the seals at the Oil Pressure Sender / Switch. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

One part is listed for the 2004 Cadillac CTS — GM GENUINE 11016282.