2026 Cadillac XT5 Engine Parts

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

GM GENUINE supplies the 4 Camshaft parts for the 2026 Cadillac XT5.

Part numbers include GM GENUINE 12677826, GM GENUINE 12677832 and GM GENUINE 12677833, among others listed 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

This group shows a single part: GM GENUINE 12636316.

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

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12647161.

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

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12672032.

This table covers the Connecting Rod bolts. Read more

This group shows a single part: GM GENUINE 11519680.

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

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12699162.

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

3 Crankshaft Main Bearing parts for the 2026 Cadillac XT5 come from GM GENUINE.

This group includes GM GENUINE 12744917, GM GENUINE 12720271 and GM GENUINE 12720272.

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

GM GENUINE supplies the 5 Crankshaft Main Bearing Cap Bolt parts for the 2026 Cadillac XT5. GM GENUINE 11546565 carries the "Popular" badge.

This group includes GM GENUINE 11546565, GM GENUINE 11588713 and GM GENUINE 11589000 and the remaining parts above.

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

2 Crankshaft Seal parts for the 2026 Cadillac XT5 come from GM GENUINE.

Listed part numbers: GM GENUINE 12693989 and GM GENUINE 12654010.

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

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12570326.

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

GM GENUINE supplies both parts for the 2026 Cadillac XT5.

Listed part numbers: GM GENUINE 11547020 and GM GENUINE 11547584.

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

GM GENUINE supplies both parts for the 2026 Cadillac XT5.

Listed part numbers: GM GENUINE 12647574 and GM GENUINE 12647575.

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

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12672033.

This table covers the Engine Block drain plugs. Read more

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 11546667.

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

This group shows a single part: GM GENUINE 12587380.

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

This group shows a single part: GM GENUINE 12647868.

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

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12718357.

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

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12700427.

This table covers the Harmonic Balancer bolts. Read more

This group shows a single part: GM GENUINE 11546516.

This table covers the Intake insulators. Read more

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12711487.

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

This group shows a single part: GM GENUINE 12674037.

This table covers the Intake Manifold bolts. Read more

GM GENUINE supplies both parts for the 2026 Cadillac XT5.

Listed part numbers: GM GENUINE 11547321 and GM GENUINE 11547030.

This table covers the Intake Manifold covers. Read more

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12680066.

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

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12648665.

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

This group shows a single part: GM GENUINE 12647867.

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

This group shows a single part: GM GENUINE 84499831.

This table covers the Motor Mount bolts. Read more

GM GENUINE supplies both parts for the 2026 Cadillac XT5.

Part numbers include GM GENUINE 11547918 and GM GENUINE 11588741.

This table covers the Motor Mount Bracket bolts. Read more

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 11589279.

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

17 Oil parts for the 2026 Cadillac XT5 come from 5 brands — MOBIL, LIQUI MOLY, VALVOLINE and 2 other brands. The "Popular" part is ACDELCO 109324.

The Full Synthetic section lists 15 options from LIQUI MOLY, MOBIL, VALVOLINE and 2 other brands — full-synthetic oils. ACDELCO 109324 is listed in this group.

In the High Mileage (>75,000 Miles) grade, MOBIL supplies 2 parts: oils grouped for high-mileage engines. A representative part number is MOBIL 123842.

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

This group shows a single part: GM GENUINE 12662732.

This table covers the Oil Cooler lines. Typical signs include a wet fitting, a rusted pipe, or a pressure loss in this circuit. Flare or thread the new line the way the notes specify; a kinked replacement will fail early. Read more

This group shows a single part: GM GENUINE 12662673.

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

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12733672.

This table covers the Oil Dipstick tubes. Read more

2 Oil Dipstick / Tube parts for the 2026 Cadillac XT5 come from GM GENUINE.

Part numbers include GM GENUINE 12666871 and GM GENUINE 12672635.

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

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 24504031.

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

This group shows a single part: GM GENUINE 55577568.

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

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12616850.

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

This group shows a single part: ACDELCO FC268.

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

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 24100002.

This table covers the Oil Filler tubes. Read more

This group shows a single part: GM GENUINE 12686973.

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

9 Oil Filter parts for the 2026 Cadillac XT5 come from 9 brands — CHAMP / LUBER-FINER, FVP, PRO-TEC and 6 other brands. The "Popular" part is MOBIL M1212A.

The Economy section lists 5 options from CHAMP / LUBER-FINER, FVP, PRO-TEC and 2 other brands — the catalog's value-priced group. CHAMP / LUBER-FINER PH1500 is listed in this group.

The High Performance / Heavy Duty section lists 1 option from MOBIL — grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. MOBIL M1212A is listed in this group.

In the Standard Replacement grade, ACDELCO, HASTINGS / BALDWIN and WIX supply 3 parts: built to original-equipment specification. A representative part number is ACDELCO PF63A.

This group includes MOBIL M1212A, CHAMP / LUBER-FINER PH1500 and FVP R0412 and the remaining parts above.

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

3 Oil Galley Plug parts for the 2026 Cadillac XT5 come from GM GENUINE.

Listed part numbers: GM GENUINE 11562126, GM GENUINE 09427693 and GM GENUINE 12691176.

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

This group shows a single part: GM GENUINE 12696433.

This table covers the Oil Level Sensor 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

This group shows a single part: GM GENUINE 12638820.

This table covers the oil pans that hold the engine's oil sump. Read more

2 Oil Pan parts are listed for the 2026 Cadillac XT5, from GM GENUINE and SPECTRA PREMIUM.

Part numbers include GM GENUINE 12647615 and SPECTRA PREMIUM GMP133A.

This table covers the Oil Pan bolts. Read more

4 Oil Pan Bolt parts for the 2026 Cadillac XT5 come from GM GENUINE.

Listed part numbers: GM GENUINE 11588726, GM GENUINE 11588725 and GM GENUINE 11588694, plus the other parts above.

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

This group shows a single part: GM GENUINE 12647081.

This table covers the Oil pumps. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit. Read more

This group shows a single part: GM GENUINE 12741263.

This table covers the chains that drive the oil pump. Read more

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12694716.

This table covers the Oil Pump Control Valve solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid. Read more

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12741262.

This table covers the gaskets that seal the Oil Pump Pickup Tube. 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 2026 Cadillac XT5 — GM GENUINE 12637179.

This table covers the Oil Pump sprockets. Read more

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12669395.

This table covers the pistons that travel in each cylinder. Typical signs include knock, blow-by, or a cylinder that will not hold compression. Piston work is a short-block job. Match bore, pin and ring pack in the notes — not the photo. Read more

GM GENUINE supplies both parts for the 2026 Cadillac XT5.

Listed part numbers: GM GENUINE 12674055 and GM GENUINE 12674056.

This table covers the Piston Pin retainers. Read more

This group shows a single part: GM GENUINE 12647160.

This table covers the rings that seal each piston to the cylinder wall. Read more

2 Piston Ring parts are listed for the 2026 Cadillac XT5, from GM GENUINE and HASTINGS MANUFACTURING.

This group includes GM GENUINE 12705385 and HASTINGS MANUFACTURING 2N5670.

This table covers the rocker arms that transfer cam motion to the valves. Read more

4 Rocker Arm parts for the 2026 Cadillac XT5 come from 2 brands — GM GENUINE and SKP.

This group includes GM GENUINE 12654646, GM GENUINE 24100294 and GM GENUINE 12666601 and the remaining parts above.

This table covers the Rocker Arm nuts. Read more

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 11546449.

This table covers the timing chains that keep the cams in time with the crank. Read more

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12647895.

This table covers kits that group a timing chain with the related tensioners and guides. Read more

This group shows a single part: GM GENUINE 12713649.

This table covers the guides and dampers that keep the timing chain on its path. Read more

GM GENUINE supplies both parts for the 2026 Cadillac XT5.

Listed part numbers: GM GENUINE 11547061 and GM GENUINE 11561619.

This table covers the tensioners that keep the timing chain taut. 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

4 Timing Chain Tensioner parts for the 2026 Cadillac XT5 come from GM GENUINE.

Part numbers include GM GENUINE 12713641, GM GENUINE 12713639 and GM GENUINE 12713640, among others listed above.

This table covers the Timing covers. Read more

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12729377.

This table covers the Timing Cover bolts. Read more

This group shows a single part: GM GENUINE 11548171.

This table covers the gaskets that seal the Timing Cover. 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

2 Timing Cover Gasket parts for the 2026 Cadillac XT5 come from GM GENUINE.

Part numbers include GM GENUINE 12647891 and GM GENUINE 12647888.

This table covers the seals at the Timing Cover. 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 12741846.

This table covers the Turbocharger Oil Line 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

This group shows a single part: GM GENUINE 12662187.

This table covers the Turbocharger Wastegate Solenoid / Actuator retainers. Read more

This group shows a single part: GM GENUINE 55503301.

This table covers the Valve covers. Read more

GM GENUINE supplies both parts for the 2026 Cadillac XT5.

Part numbers include GM GENUINE 12714147 and GM GENUINE 12714148.

This table covers the Valve Cover Bolt screws. Typical signs include a rounded head, a seeping bleeder, or a fastener that will not hold torque. Do not force a new screw into a stripped hole — repair the thread first. Read more

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 11547061.

This table covers the gaskets that seal the valve cover 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

2 Valve Cover Gasket parts for the 2026 Cadillac XT5 come from GM GENUINE.

This group includes GM GENUINE 12649907 and GM GENUINE 12649906.

This table covers the Valve Cover washers. Read more

One part is listed for the 2026 Cadillac XT5 — GM GENUINE 12654651.

This table covers the lifters / tappets that transfer cam motion to the valves. Read more

2 Valve Lifter parts for the 2026 Cadillac XT5 come from GM GENUINE.

Part numbers include GM GENUINE 12690246 and GM GENUINE HL129.

This table covers the seals on each valve stem that control oil into the guides. 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 12668832.

This table covers the oil-control solenoids that command the cam phasers. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same. Read more

4 Variable Valve Timing (VVT) Solenoid / Actuator parts for the 2026 Cadillac XT5 come from 2 brands — GM GENUINE and GATES.

The Economy section: 1 option from GATES. GATES VVS380 is listed in this group.

Standard Replacement: 3 parts, from GM GENUINE. A representative part number is GM GENUINE 12647904.

Part numbers include GATES VVS380, GM GENUINE 12647904 and GM GENUINE 12732244, among others listed above.

This table covers the seals at the Variable Valve Timing (VVT) Solenoid Gasket. 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

GM GENUINE supplies the 4 Variable Valve Timing (VVT) Solenoid Gasket / Seal parts for the 2026 Cadillac XT5.

This group includes GM GENUINE 12663572, GM GENUINE 12653143 and GM GENUINE 12649908 and the remaining parts above.

This table covers the cam phaser sprockets used by the variable-valve-timing system. Read more

4 Variable Valve Timing (VVT) Sprocket parts for the 2026 Cadillac XT5 come from GM GENUINE.

This group includes GM GENUINE 12690958, GM GENUINE 12684806 and GM GENUINE 12690959 and the remaining parts above.