12646386 - GENERAL MOTORS Engine Timing Chain

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Engine Timing Chain

Part Number: 12646386
Supersession(s): 12586482; 12646387

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CHAIN ASSEMBLY - Timing. Engine Timing Chain.
Engine Timing Chain.

Engine Timing Chain

Timing Chain - Repair or Replace
Your engine's timing chain can stretch over time resulting in a check engine light that comes along with excessive noise from your engine's timing cover. If the chain has broken, which is a rare occurrence, the engine will not start. If your has high mileage along with any of these other symptoms, contact our service department for expert diagnosis.

ENGINE PARTS.

Full Diagram

#11

ENGINE PARTS.

Full Diagram

#11

5. 3 liter.

5.3 LITER.

ENGINE PARTS.

Full Diagram

#11

5. 3 liter.

5.3 LITER.

ENGINE PARTS.

Full Diagram

#18

1ST design. 2ND design. 5. 3 liter.

5.3 LITER.

ENGINE PARTS.

Full Diagram

#11

6. 0 liter.

6.0 LITER.

Rear door. Engine parts.

Full Diagram

4. 8 & 5. 3 Liter. 5. 3 & 6. 0 liter. ALL. Lower. Upper. W/FLEX fuel. W/O flex fuel.

4.8. 5.3 & 6.0 LITER.

Engine parts.

Full Diagram

#12

w/dry sump sys. w/dry sunp sys. w/o dry sump sys. w/o dry sunp sys. W/O SUPERCHARGED.

W/O SUPERCHARGED.

ENGINE PARTS.

Full Diagram

#10

7. 0 liter.

7.0 LITER.

BALANCE SHAFTS. CAMSHAFT & TIMING. CRANKSHAFT & BEARINGS. CYLINDER HEAD & VALVES. LUBRICATION. MOUNTS. PISTONS. RINGS & BEARINGS.

Full Diagram

#20

Oil pan. Oil pump. Variable valve timing. Sierra.

Sierra. Silverado; Camshaft.

CAMSHAFT & TIMING. CRANKSHAFT & BEARINGS. CYLINDER HEAD & VALVES. LUBRICATION. MOUNTS. PISTONS. RINGS & BEARINGS.

Full Diagram

#20

Oil pan. Oil pump. All Models; 5.7L; All; Auto Trans. All Models; 5.7L; All; Manual Trans. All Models; 5.7L; Auto Trans. All Models; 5.7L; Exhaust. All Models; 5.7L; Intake. All Models; 5.7L; Left. All Models; 5.7L; Manual Trans. All Models; 5.7L; No. 1. All Models; 5.7L; No. 2. All Models; 5.7L; No. 5. All Models; 5.7L; No.1. All Models; 5.7L; No.2. All Models; 5.7L; No.3. All Models; 5.7L; No.4. All Models; 5.7L; Right. All Models; 5.7L; Standard. Hi-Limit.

All Models; 5.7L.