Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Disassembled Views
2011 Buick Regal L4-2.4LSECTION Disassembled Views
Disassembled Views
Engine Block and Components
1 - Water Pump to Engine Block Seal
2 - Water Pump
3 - Water Transfer Pipe O-ring Seals
4 - Water Transfer Pipe
5 - Coolant Temperature Sensor
6 - Thermostat Housing to Block Gasket
7 - Thermostat Housing
8 - Thermostat
9 - Thermostat Gasket
10 - Thermostat Housing Cap Bolt
11 - Thermostat Housing Cap
12 - Water Pipe Support Bracket
13 - Water Pipe Support Bracket Bolt Stud
14 - Water Pipe Support Bracket Bolt
15 - Cylinder Head Gasket
16 - Piston Ring Assembly
17 - Piston Assembly
18 - Connecting Rod
19 - Connecting Rod Bearing
20 - Connecting Rod Cap Bolt
21 - Cylinder Head Alignment Pin
22 - Oil Filter Cap
23 - Oil Filter Cap O-Ring
24 - Oil Filter
25 - Engine Block Gallery Plug
26 - Engine Block to Transaxle Alignment Pin
27 - Crankshaft Position Sensor
28 - Crankshaft Position Sensor Bolt
29 - Oil Pressure Switch
30 - Knock Sensor
31 - Piston Oil Nozzle
32 - Engine Block
33 - Crankshaft Thrust Bearing - Upper
34 - Crankshaft Bearing - Upper
35 - Crankshaft
36 - Crankshaft Thrust Bearing - Lower
37 - Crankshaft Bearing - Lower
38 - Crankshaft Rear Seal
39 - Flywheel
40 - Flywheel to Crankshaft Bolt
41 - Lower Crankcase
42 - Lower Crankcase Perimeter Bolt
43 - Starter
44 - Starter Bolt
45 - Engine Oil Pan Alignment Pins
46 - Engine Oil Pan
47 - Engine Oil Pan Long Bolt
48 - Engine Oil Pan Bolt
49 - Engine Oil Pan Drain Plug
50 - Lower Crankcase Main Bearing Bolt
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.