Before you order: GM part numbers change by option code and year. Confirm against your VIN with a GM dealer. Callout numbers on this page are our own and do not match GM's diagram numbers. Quantities are per vehicle (both sides).
Engine: this page covers the 2.4L 4-cylinder (LAF 2010-2011, LEA 2012-2017) only. For the 3.0L / 3.6L V6, see Cylinder Head V6. Cam actuators, solenoids and cam sensors are on the Timing Chain 2.4L page; the high-pressure fuel pump is on the Manifolds 2.4L page. The drawing is simplified and not to scale.
Engine: this page covers the 2.4L 4-cylinder (LAF 2010-2011, LEA 2012-2017) only. For the 3.0L / 3.6L V6, see Cylinder Head V6. Cam actuators, solenoids and cam sensors are on the Timing Chain 2.4L page; the high-pressure fuel pump is on the Manifolds 2.4L page. The drawing is simplified and not to scale.
| # | Part | GM OEM # | Fitment & notes | Buy |
|---|---|---|---|---|
| 1 | Head kit, cylinder (without valves and camshafts) | 12608280 without secondary air injection 12641701 with secondary air injection (NU6), 2013-2015 | 2.4L. Bare head with plugs, cam bearing caps and dowels; valves, springs and camshafts are sold separately. GM shows 12641701 as replaced by remanufactured head 19419467 (2012-2015). | Check price on Amazon |
| 2 | Gasket, cylinder head | 12611196 | 2.4L. GM: replace the head bolts whenever the head gasket is replaced. Also in kit 3. | Check price on Amazon |
| 3 | Gasket kit, cylinder head (gasket, head bolts, valve stem seals) (not illustrated) | 12637166 | 2.4L LAF and LEA. Includes the head gasket (2), bolts (4, 5) and valve stem seals (10). | Check price on Amazon |
| 4 | Bolt, cylinder head (M11x1.5x163) | 90537691 | 2.4L. Qty 10. Single use. | Check price on Amazon |
| 5 | Bolt, cylinder head (M8x1.25x60) | 24407225 | 2.4L. Qty 4. | Check price on Amazon |
| 6 | Camshaft, intake | 12634207 2011-2017 19368199 2010 (remanufactured) | 2.4L. Includes the sprocket oil seal ring. The 2010 diagram lists only the remanufactured intake cam 19368199; GM lists 12634207 for 2011-2017. | Check price on Amazon |
| 7 | Camshaft, exhaust | 12604896 | 2.4L. Includes the sprocket oil seal ring. | Check price on Amazon |
| 8 | Valve, intake | 55563529 | 2.4L. Qty 8. | Check price on Amazon |
| 9 | Valve, exhaust | 12615936 | 2.4L LEA. Qty 8. | Check price on Amazon |
| 10 | Seal, valve stem oil | 90537241 | 2.4L. Qty 16. Also in kit 3. | Check price on Amazon |
| 11 | Spring, valve | 90537032 | 2.4L. Qty 16. | Check price on Amazon |
| 12 | Retainer, valve spring | 90537243 | 2.4L. Qty 16. | Check price on Amazon |
| 13 | Key, valve stem (keeper) | 12736805 current 90354648 superseded | 2.4L. Qty 32. 90354648 is replaced by 12736805. | Check price on Amazon |
| 14 | Arm, valve rocker (roller finger follower) | 12693909 | 2.4L. Qty 16. | Check price on Amazon |
| 15 | Adjuster, hydraulic valve lash | 12686787 | 2.4L. Qty 16. The same number is used on the V6. | Check price on Amazon |
| 16 | Cover, camshaft (valve cover, with seals, bolts, PCV pipe and baffle) | 12610279 | 2.4L. GM sells the cam cover complete with its gasket, bolts, PCV pipe and baffle. | Check price on Amazon |
| 17 | Gasket kit, camshaft cover | 12609291 | 2.4L. Part of cover (16); also sold separately. | Check price on Amazon |
| 18 | Insulator, camshaft housing cover (top cover) | 12612784 | 2.4L. | Check price on Amazon |
| 19 | Coil, ignition | 25206788 current 12638824 superseded | 2.4L. Qty 4. Includes bolt and retainer. 12638824 is replaced by 25206788. | Check price on Amazon |
| 20 | Bolt, ignition coil (M6x48) | 11589083 | 2.4L. Part of the coil (19). | Check price on Amazon |
| 21 | Spark plug (iridium, pre-gapped) | 12681658 | 2.4L. Qty 4. GM: pre-gapped, do not change the gap. | Check price on Amazon |
| 22 | Bracket, engine lift (front) | 12666744 | 2.4L. | Check price on Amazon |
| 23 | Bracket, engine lift (rear) | 12580019 | 2.4L. | Check price on Amazon |
| 24 | Plate, cylinder head opening (with seal) | 12589459 | 2.4L. Includes the O-ring (25). | Check price on Amazon |
| 25 | Seal, cylinder head opening plate (O-ring) | 12589461 | 2.4L. Part of plate (24). | Check price on Amazon |
| 26 | Fitting, engine coolant air bleed hose | 12589732 | 2.4L. | Check price on Amazon |
The illustration is an original drawing made for this site. It is not to scale and the shapes are representative.