2019 Cadillac CTS Engine Parts

This table covers the Balance shafts. Read more

One part is listed for the 2019 Cadillac CTS — GM GENUINE 25203088.

This table covers the chains that drive the balance shafts. Read more

6 Balance Shaft Chain parts for the 2019 Cadillac CTS come from 4 brands — CLOYES, MELLING, GM GENUINE and 1 other brand. The "Popular" part is CLOYES C919.

In the Chain Only grade, CLOYES, MELLING, GM GENUINE and 1 other brand supply 4 parts: grouped under the catalog's "Chain Only" designation — the notes column spells out what sets them apart. A representative part number is CLOYES C919.

The Kit section lists 2 options from CLOYES and MELLING — grouped under the catalog's "Kit" designation — the notes column spells out what sets them apart. CLOYES 90919S is listed in this group.

Part numbers include CLOYES C919, MELLING 1094 and GM GENUINE 12626983, among others listed above.

This table covers the guides that keep the balance-shaft chain on its path. Read more

5 Balance Shaft Chain Guide parts for the 2019 Cadillac CTS come from 5 brands — MELLING, CLOYES, FVP and 2 other brands. The "Popular" part is MELLING BG5150.

Listed part numbers: MELLING BG5150 and CLOYES 95953, plus the other parts above.

This table covers the Balance Shaft Chain tensioners. Typical signs include belt flutter, a chirp that returns after a new belt, or an arm that no longer damps. Replace the tensioner with the belt at higher mileage. Read more

5 Balance Shaft Chain Tensioner parts are listed for the 2019 Cadillac CTS, from GM GENUINE, CLOYES, FVP and 2 other brands. GM GENUINE 12626984 carries the "Popular" badge.

Part numbers include GM GENUINE 12626984 and CLOYES 95952, among others listed above.

This table covers the Balance Shaft sprockets. Read more

5 Balance Shaft Sprocket parts for the 2019 Cadillac CTS come from 5 brands — MELLING, CLOYES, FVP and 2 other brands. The "Popular" part is MELLING S1370.

This group includes MELLING S1370 and CLOYES S1101 and the remaining parts above.

This table covers the Barometric pressure sensors. Typical signs include a check-engine light for MAP or fuel-rail pressure, or a limp mode under load. A vacuum leak or a clogged reference line will fake a bad pressure sensor. Read more

2 Barometric Pressure Sensor parts for the 2019 Cadillac CTS come from 2 brands — ACDELCO and GM GENUINE.

Part numbers include ACDELCO PT3940 and GM GENUINE 12711681.

This table covers the blocks in this assembly. Read more

This group shows a single part: GM GENUINE 25201642.

This table covers the camshafts that open the valves. Read more

3 Camshaft parts for the 2019 Cadillac CTS come from GM GENUINE.

Listed part numbers: GM GENUINE 12626896, GM GENUINE 28290130 and GM GENUINE 12742438.

This table covers the Camshaft bearings. 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

2 Camshaft Bearing parts for the 2019 Cadillac CTS come from 2 brands — GM GENUINE and MAHLE / CLEVITE.

Listed part numbers: GM GENUINE 12686894 and MAHLE / CLEVITE SH2231S.

This table covers the Camshaft bolts. Read more

One part is listed for the 2019 Cadillac CTS — ELRING 857390.

This table covers the Camshaft Dowel pins. Read more

This group shows a single part: GM GENUINE 24575061.

This table covers the Camshaft Retainer / Thrust plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts. Read more

6 Camshaft Retainer / Thrust Plate parts are listed for the 2019 Cadillac CTS, from APEX, FEL-PRO, MELLING and 2 other brands. FEL-PRO ES73115 carries the "Popular" badge.

This group includes FEL-PRO ES73115, MELLING MF127 and APEX AES319 and the remaining parts above.

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

3 Camshaft Seal parts are listed for the 2019 Cadillac CTS, from GM GENUINE, MAHLE / CLEVITE and VICTOR REINZ.

Listed part numbers: GM GENUINE 12574477, MAHLE / CLEVITE B32270 and VICTOR REINZ 711836900.

This table covers the Circular / Semi-Circular 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 2019 Cadillac CTS — GM GENUINE 11588547.

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

This group shows a single part: GM GENUINE 12674411.

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

2 Connecting Rod Bearing parts for the 2019 Cadillac CTS come from GM GENUINE.

Part numbers include GM GENUINE 12668645 and GM GENUINE 12735504.

This table covers the Connecting Rod bolts. Read more

GM GENUINE supplies both parts for the 2019 Cadillac CTS.

Listed part numbers: GM GENUINE 11548927 and GM GENUINE 11548432.

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

5 Conversion / Lower Gasket Set parts for the 2019 Cadillac CTS come from 4 brands — AJUSA, APEX, ENGINETECH and 1 other brand.

Listed part numbers: AJUSA 54229400, AJUSA 54323600 and APEX ACS13056, plus the other parts above.

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

This group shows a single part: GM GENUINE 12626959.

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

4 Crankshaft Main Bearing parts are listed for the 2019 Cadillac CTS, from GM GENUINE, ENGINETECH and MAHLE / CLEVITE.

Listed part numbers: ENGINETECH BC623J, GM GENUINE 12668646 and GM GENUINE 12729655, plus the other parts above.

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

3 Crankshaft Main Bearing Cap Bolt parts for the 2019 Cadillac CTS come from GM GENUINE.

This group includes GM GENUINE 11546565, GM GENUINE 11548076 and GM GENUINE 11548075.

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

11 Crankshaft Repair Sleeve parts are listed for the 2019 Cadillac CTS, from WJB / INMOTION PARTS, BCA, NATIONAL and 2 other brands. NATIONAL 99215 carries the "Popular" badge.

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

One part is listed for the 2019 Cadillac CTS — FEL-PRO 16329.

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

21 Crankshaft Seal parts are listed for the 2019 Cadillac CTS, from GM GENUINE, FEL-PRO, NATIONAL and 7 other brands. FEL-PRO BS40739 carries the "Popular" badge.

This table covers the Crankshaft Seal covers. Read more

This group shows a single part: GM GENUINE 12705665.

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: GM GENUINE 12627520.

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

GM GENUINE supplies both parts for the 2019 Cadillac CTS.

This group includes GM GENUINE 12690428 and GM GENUINE 12699619.

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

7 Cylinder Head Bolt parts for the 2019 Cadillac CTS come from 5 brands — GM GENUINE, AJUSA, APEX and 2 other brands. The "Popular" part is GM GENUINE 11546959.

This group includes GM GENUINE 11546959, AJUSA 81065100 and APEX AHB1351 and the remaining parts above.

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

10 Cylinder Head Gasket parts for the 2019 Cadillac CTS come from 5 brands — AJUSA, APEX, GM GENUINE and 2 other brands. The "Popular" part is APEX AHG1425.

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

4 Cylinder Head Gasket Set parts for the 2019 Cadillac CTS come from 3 brands — AJUSA, GM GENUINE and MAHLE / CLEVITE.

Part numbers include AJUSA 52638100, AJUSA 52615900 and GM GENUINE 28290128, among others listed above.

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

This group shows a single part: MELLING CSL359F.

This table covers the Engine Block drain plugs. Read more

This group shows a single part: GM GENUINE 11546667.

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 2019 Cadillac CTS, from GM GENUINE and KAT'S HEATERS.

Listed part numbers: GM GENUINE 12586687 and KAT'S HEATERS 28510.

This table covers the Engine Cover grommets. Read more

One part is listed for the 2019 Cadillac CTS — GM GENUINE 12737359.

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 2019 Cadillac CTS come from AJUSA.

This group includes AJUSA 50567200 and AJUSA 50553600.

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

4 Exhaust Valve parts are listed for the 2019 Cadillac CTS, from GM GENUINE and MELLING.

Listed part numbers: GM GENUINE 12684736, GM GENUINE 12678746 and MELLING V5816, plus the other parts above.

This table covers the followers that drive a mechanical fuel pump off the camshaft. Read more

2 Fuel Pump Camshaft Follower parts for the 2019 Cadillac CTS come from 2 brands — GM GENUINE and WELLS.

This group includes GM GENUINE 12718357 and WELLS 5T5013.

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

6 Harmonic Balancer parts for the 2019 Cadillac CTS come from 5 brands — GM GENUINE, SKP, ATP and 2 other brands. The "Popular" part is GM GENUINE 25202078.

The Economy section lists 1 option from SKP — the catalog's value-priced group. SKP SK594713 is listed in this group.

In the Standard Replacement grade, GM GENUINE, ATP, DORMAN and 1 other brand supply 4 parts: built to original-equipment specification. A representative part number is GM GENUINE 25202078.

1 further part sits outside the graded sections, with the same engine-level match.

This group includes GM GENUINE 25202078, SKP SK594713 and ATP 102479 and the remaining parts above.

This table covers the Harmonic Balancer bolts. Read more

4 Harmonic Balancer Bolt parts are listed for the 2019 Cadillac CTS, from GM GENUINE, DORMAN and FEL-PRO.

Part numbers include DORMAN 917139, FEL-PRO 73372 and GM GENUINE 12557840, among others listed above.

This table covers the Intake insulators. Read more

This group shows a single part: GM GENUINE 24507878.

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

GM GENUINE supplies both parts for the 2019 Cadillac CTS.

Listed part numbers: GM GENUINE 12631023 and GM GENUINE 12701996.

This table covers the Intake Manifold bolts. Read more

2 Intake Manifold Bolt parts for the 2019 Cadillac CTS come from GM GENUINE.

Listed part numbers: GM GENUINE 11588352 and GM GENUINE 11546958.

This table covers the Intake Manifold covers. Read more

2 Intake Manifold Cover parts for the 2019 Cadillac CTS come from GM GENUINE.

Listed part numbers: GM GENUINE 12740045 and GM GENUINE 12650928.

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

9 Intake Manifold Gasket parts for the 2019 Cadillac CTS come from 6 brands — FEL-PRO, GM GENUINE, MAHLE / CLEVITE and 3 other brands. The "Popular" part is FEL-PRO MS97404.

This group includes FEL-PRO MS97404, AJUSA 13268400 and APEX AMS13511 and the remaining parts 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

4 Intake Valve parts are listed for the 2019 Cadillac CTS, from GM GENUINE, MELLING and QUALCAST.

Part numbers include GM GENUINE 12662527, GM GENUINE 12650770 and MELLING V3441, among others listed 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

11 Motor Mount parts are listed for the 2019 Cadillac CTS, from GM GENUINE, ANCHOR and DEA / MARMON RIDE CONTROL. GM GENUINE 23340400 carries the "Popular" badge.

This table covers the Motor Mount bolts. Read more

This group shows a single part: GM GENUINE 11548249.

This table covers the brackets that mount the Motor Mount. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

One part is listed for the 2019 Cadillac CTS — GM GENUINE 84046829.

This table covers the Motor Mount Bracket bolts. Read more

This group shows a single part: GM GENUINE 11588740.

This table covers the Motor Mount kits. Read more

One part is listed for the 2019 Cadillac CTS — ANCHOR 301000.

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

30 Oil parts are listed for the 2019 Cadillac CTS, from LIQUI MOLY, VALVOLINE, MOBIL and 3 other brands. ACDELCO 109324 carries the "Popular" badge. Full Synthetic and High Mileage (>75,000 Miles) are all represented, and Full Synthetic alone accounts for 26 parts.

This table covers the Oil check valves. Read more

One part is listed for the 2019 Cadillac CTS — GM GENUINE 12670540.

This table covers the heat exchangers that cool engine oil. Typical signs include oil at the cooler fittings, or coolant that looks like a milkshake. Pressure-test both circuits after a cooler swap — a leak here mixes oil and coolant. Read more

5 Oil Cooler parts are listed for the 2019 Cadillac CTS, from GM GENUINE, ACDELCO, DORMAN and 1 other brand.

This group includes ACDELCO 25202979, DORMAN 918481 and GM GENUINE 12688093 and the remaining parts above.

This table covers the gaskets that seal the Oil Cooler. 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

3 Oil Cooler Gasket parts for the 2019 Cadillac CTS come from 2 brands — FEL-PRO and DORMAN.

This group includes DORMAN 66219, FEL-PRO 73160 and FEL-PRO 73127.

This table covers the harness connectors at the Oil Cooler Line. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock. Read more

This group shows a single part: GM GENUINE 12662820.

This table covers the Oil Cooler Mounting kits. Read more

2 Oil Cooler Mounting Kit parts for the 2019 Cadillac CTS come from HAYDEN.

Part numbers include HAYDEN 238 and HAYDEN 153.

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

2 Oil Cooler Seal parts for the 2019 Cadillac CTS come from 2 brands — FEL-PRO and GM GENUINE.

Listed part numbers: FEL-PRO 73470 and GM GENUINE 25202978.

This table covers the Oil Dipstick tubes. Read more

GM GENUINE supplies the 4 Oil Dipstick / Tube parts for the 2019 Cadillac CTS.

This group includes GM GENUINE 12654313, GM GENUINE 12654312 and GM GENUINE 12684910 and the remaining parts above.

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

2 Oil Dipstick / Tube Seal parts for the 2019 Cadillac CTS come from 2 brands — FEL-PRO and GM GENUINE.

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