2023 Chevrolet Silverado 2500 Engine Parts

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

4 Camshaft parts for the 2023 Chevrolet Silverado 2500 come from 2 brands — GM GENUINE and MELLING.

Listed part numbers: GM GENUINE 12742436, GM GENUINE 12672469 and GM GENUINE 12633925, plus the other parts above.

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

6 Camshaft Bearing parts for the 2023 Chevrolet Silverado 2500 come from GM GENUINE.

This group includes GM GENUINE 19260877, GM GENUINE 19260878 and GM GENUINE 19260879 and the remaining parts above.

This table covers the Camshaft bolts. Read more

One part is listed for the 2023 Chevrolet Silverado 2500 — GM GENUINE 11561455.

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

4 Camshaft Retainer / Thrust Plate parts are listed for the 2023 Chevrolet Silverado 2500, from DORMAN, FEL-PRO, GM GENUINE and 1 other brand. 1 part fits every engine; the other 3 are engine-specific.

This group includes DORMAN 45745, FEL-PRO ES73115 and GM GENUINE 12589016 and the remaining parts above.

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

This group shows a single part: GM GENUINE 12683616.

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

5 Connecting Rod Bearing parts for the 2023 Chevrolet Silverado 2500 come from 3 brands — GM GENUINE, MAHLE / CLEVITE and ENGINETECH.

This group includes ENGINETECH BB145J, GM GENUINE 12735504 and GM GENUINE 12685817 and the remaining parts above.

This table covers the Connecting Rod bolts. Read more

One part is listed for the 2023 Chevrolet Silverado 2500 — 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

This group shows a single part: ELRING 859220.

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

2 Crankshaft parts for the 2023 Chevrolet Silverado 2500 come from GM GENUINE.

This group includes GM GENUINE 12708884 and GM GENUINE 12677566.

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 are listed for the 2023 Chevrolet Silverado 2500, from GM GENUINE and ENGINETECH.

This group includes ENGINETECH BC204J, GM GENUINE 12729655 and GM GENUINE 12704537.

This table covers the Crankshaft Main Bearing caps. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

One part is listed for the 2023 Chevrolet Silverado 2500 — GM GENUINE 12686745.

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

4 Crankshaft Main Bearing Cap Bolt parts for the 2023 Chevrolet Silverado 2500 come from GM GENUINE.

Part numbers include GM GENUINE 11546565, GM GENUINE 11548076 and GM GENUINE 11548075, among others listed 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

11 Crankshaft Seal parts are listed for the 2023 Chevrolet Silverado 2500, from GM GENUINE, VICTOR REINZ, ELRING and 2 other brands. GM GENUINE 29606 carries the "Popular" badge.

This table covers the Crankshaft Seal covers. Read more

This group shows a single part: GM GENUINE 12705664.

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

3 Crankshaft Seal Gasket parts for the 2023 Chevrolet Silverado 2500 come from 2 brands — ELRING and GM GENUINE.

This group includes ELRING 859230, ELRING 859270 and GM GENUINE 12627520.

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

2 Cylinder Head parts are listed for the 2023 Chevrolet Silverado 2500, from GM GENUINE and QUALCAST.

Part numbers include GM GENUINE 12716846 and QUALCAST 16166555.

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

3 Cylinder Head Bolt parts for the 2023 Chevrolet Silverado 2500 come from 2 brands — GM GENUINE and FEL-PRO.

Part numbers include FEL-PRO ES73121, GM GENUINE 11611976 and GM GENUINE 11546959.

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 2023 Chevrolet Silverado 2500 come from 6 brands — GM GENUINE, MAHLE / CLEVITE, ELRING and 3 other brands. The "Popular" part is MAHLE / CLEVITE 55523.

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

This group shows a single part: ELRING 859120.

This table covers the Cylinder Head 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 2023 Chevrolet Silverado 2500 — GM GENUINE 24502262.

This table covers the Engine Block drain plugs. Read more

4 Engine Block Drain Plug parts for the 2023 Chevrolet Silverado 2500 come from GM GENUINE.

Part numbers include GM GENUINE 11602951, GM GENUINE 11546667 and GM GENUINE 11588468, among others listed above.

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

GM GENUINE supplies both parts for the 2023 Chevrolet Silverado 2500.

Part numbers include GM GENUINE 12586687 and GM GENUINE 12742345.

This table covers the Engine covers. Read more

2 Engine Cover parts for the 2023 Chevrolet Silverado 2500 come from 2 brands — TECHPRO and VARIOUS MFR. Every part fits both the 6.6L V8 and the 6.6L V8 DIESEL Turbocharged.

This group includes TECHPRO GM1228175 and the remaining parts above.

This table covers the Engine Cover grommets. Read more

One part is listed for the 2023 Chevrolet Silverado 2500 — GM GENUINE 12594875.

This table covers the Engine Cover retainers and clips. Read more

One part is listed for the 2023 Chevrolet Silverado 2500 — GM GENUINE 11588327.

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

7 Exhaust Valve parts are listed for the 2023 Chevrolet Silverado 2500, from MELLING, GM GENUINE, ENGINETECH and 2 other brands. MELLING V3470 carries the "Popular" badge.

This group includes MELLING V3470, ENGINETECH V7301 and GM GENUINE 12733470 and the remaining parts above.

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

4 Harmonic Balancer parts for the 2023 Chevrolet Silverado 2500 come from 2 brands — GM GENUINE and SKP.

The Economy section lists 1 option from SKP — the catalog's value-priced group. SKP SK12723412 is listed in this group.

In the Standard Replacement grade, GM GENUINE supplies 2 parts: built to original-equipment specification. A representative part number is GM GENUINE 12692644.

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

Listed part numbers: SKP SK12723412, GM GENUINE 12692644 and GM GENUINE 12723412, plus the other parts above.

This table covers the Harmonic Balancer bolts. Read more

4 Harmonic Balancer Bolt parts are listed for the 2023 Chevrolet Silverado 2500, from GM GENUINE and FEL-PRO.

This group includes FEL-PRO 73372, GM GENUINE 11547372 and GM GENUINE 11589168 and the remaining parts above.

This table covers the Intake insulators. Read more

This group shows a single part: GM GENUINE 84262961.

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 the 5 Intake Manifold parts for the 2023 Chevrolet Silverado 2500.

Part numbers include GM GENUINE 12639087, GM GENUINE 12702671 and GM GENUINE 12715992, among others listed above.

This table covers the Intake Manifold bolts. Read more

2 Intake Manifold Bolt parts for the 2023 Chevrolet Silverado 2500 come from GM GENUINE. 1 part fits every engine; the other 1 is engine-specific.

Part numbers include GM GENUINE 11610472 and GM GENUINE 11588714.

This table covers the Intake Manifold covers. Read more

This group shows a single part: GM GENUINE 84262962.

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

8 Intake Manifold Gasket parts for the 2023 Chevrolet Silverado 2500 come from 3 brands — GM GENUINE, MAHLE / CLEVITE and FEL-PRO. The "Popular" part is FEL-PRO MS97402. 1 part fits every engine; the other 7 are engine-specific.

Part numbers include FEL-PRO MS97402, GM GENUINE 12626354 and FEL-PRO MS97432, 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

4 Intake Valve parts are listed for the 2023 Chevrolet Silverado 2500, from MELLING, ENGINETECH and SBI.

This group includes ENGINETECH V7300, MELLING V5827 and MELLING V3469 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

11 Motor Mount parts are listed for the 2023 Chevrolet Silverado 2500, from DEA / MARMON RIDE CONTROL, GM GENUINE, ANCHOR and 2 other brands. DEA / MARMON RIDE CONTROL A20108 carries the "Popular" badge.

This table covers the Motor Mount kits. Read more

ANCHOR supplies the 3 Motor Mount Kit parts for the 2023 Chevrolet Silverado 2500.

This group includes ANCHOR 300898, ANCHOR 300970 and ANCHOR 300969.

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

41 Oil parts are listed for the 2023 Chevrolet Silverado 2500, from VALVOLINE, LUCAS OIL, MOBIL and 4 other brands. ACDELCO 109324 carries the "Popular" badge. They are grouped as Conventional, Full Synthetic, Heavy Duty / Diesel, High Mileage (>75,000 Miles) and Synthetic Blend, with Full Synthetic the largest group at 22 parts from VALVOLINE, LIQUI MOLY, MOBIL and 4 other brands.

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

One part is listed for the 2023 Chevrolet Silverado 2500 — GM GENUINE 12675428.

This table covers the seals at the Oil Cooler Adapter. 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 both parts for the 2023 Chevrolet Silverado 2500.

This group includes GM GENUINE 12676826 and GM GENUINE 12709792.

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

12 Oil Cooler Gasket parts for the 2023 Chevrolet Silverado 2500 come from 4 brands — ELRING, GM GENUINE, DORMAN and 1 other brand. The "Popular" part is DORMAN 66219. 1 part fits every engine; the other 11 are engine-specific.

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

One part is listed for the 2023 Chevrolet Silverado 2500 — GM GENUINE 85724971.

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

3 Oil Cooler Line Connector parts for the 2023 Chevrolet Silverado 2500 come from GM GENUINE.

Listed part numbers: GM GENUINE 84240295, GM GENUINE 11588694 and GM GENUINE 11515760.

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

3 Oil Cooler Seal parts for the 2023 Chevrolet Silverado 2500 come from 2 brands — GM GENUINE and ELRING. 1 part fits every engine; the other 2 are engine-specific.

Listed part numbers: ELRING 798260, GM GENUINE 12631281 and GM GENUINE 97216175.

This table covers the Oil Dipstick tubes. Read more

GM GENUINE supplies both parts for the 2023 Chevrolet Silverado 2500.

Part numbers include GM GENUINE 12664925 and GM GENUINE 12736677.

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

5 Oil Dipstick / Tube Seal parts for the 2023 Chevrolet Silverado 2500 come from 3 brands — GM GENUINE, ELRING and FEL-PRO. The "Popular" part is GM GENUINE 24504031. 3 parts fit every engine; the other 2 are engine-specific.

This group includes GM GENUINE 24504031, ELRING 355940 and ELRING 584210 and the remaining parts above.

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

6 Oil Drain Plug parts are listed for the 2023 Chevrolet Silverado 2500, from DORMAN, GM GENUINE, ELRING and 1 other brand. 4 parts fit every engine; the other 2 are engine-specific.

Listed part numbers: DORMAN 090948CD, DORMAN 090948 and ELRING 823400, plus the other parts 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 2023 Chevrolet Silverado 2500 come from 4 brands — DORMAN, GM GENUINE, ELRING and 1 other brand. The "Popular" part is GM GENUINE 12616850. 4 parts fit every engine; the other 1 is engine-specific.

Listed part numbers: GM GENUINE 12616850, DORMAN 097119 and DORMAN 97119, plus the other parts above.

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

6 Oil Filler Cap parts are listed for the 2023 Chevrolet Silverado 2500, from ACDELCO, MOTORAD, CALORSTAT and 1 other brand. 1 part fits every engine; the other 5 are engine-specific.

Part numbers include ACDELCO FC279, ACDELCO FC261 and CALORSTAT OC2314, 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

This group shows a single part: GM GENUINE 24100002.

This table covers the Oil Filler tubes. Read more

GM GENUINE supplies both parts for the 2023 Chevrolet Silverado 2500.

Part numbers include GM GENUINE 12668614 and GM GENUINE 12695942.

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

15 Oil Filter parts are listed for the 2023 Chevrolet Silverado 2500, from VARIOUS MFR, WIX, ACDELCO and 7 other brands. WIX WL10255XP carries the "Popular" badge. 10 parts fit every engine; the other 5 are engine-specific.

Economy: 5 parts, from FAMOUS BRAND, FRAM, FVP and 2 other brands. A representative part number is FAMOUS BRAND 95396.

In the High Performance / Heavy Duty grade, WIX and MOBIL supply 2 parts: grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. A representative part number is WIX WL10255XP.

The Standard Replacement section: 8 options from ACDELCO, HASTINGS / BALDWIN, VARIOUS MFR and 2 other brands. ACDELCO PF63 is listed in this group.

This table covers the Oil Filter adapters. Read more

This group shows a single part: GM GENUINE 12600225.

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 2023 Chevrolet Silverado 2500.

This group includes ELRING 584240 and ELRING 792680.