2023 Chevrolet Express 3500 LT Standard Passenger Van Engine Timing Chain - 12646386

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2023 Chevrolet Express 3500 LT Standard Passenger Van

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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 2023 Chevrolet Express 3500 has high mileage along with any of these other symptoms, contact our service department for expert diagnosis.

Camshaft & timing. Crankshaft & bearings. Cylinder head & valves. Lubrication. Mounts. Pistons. Rings & bearings.

Full Diagram

#22

Oil cooler. Oil pan. Oil pump. Variable valve timing. Express 2500; Exhaust. Express 2500; Intake. Express 2500; Left. Express 2500; O/S 0.5MM; Left. Express 2500; O/S 0.5MM; Right. Express 2500; Oval. Express 2500; Position# 1 & 5. Express 2500; Right. Express 2500; Round (High Pressure Port). Express 2500; Standard; Left. Express 2500; Standard; Right. Express 3500; Exhaust. Express 3500; Intake. Express 3500; Left. Express 3500; O/S 0.5MM; Left. Express 3500; O/S 0.5MM; Right. Express 3500; Oval. Express 3500; Position# 1 & 5. Express 3500; Right. Express 3500; Round (High Pressure Port). Express 3500; Standard; Left. Express 3500; Standard; Right.

Express 2500. Express 3500. Savana 2500. Savana 3500.

Camshaft & timing. Crankshaft & bearings. Cylinder head & valves. Lubrication. Mounts. Pistons. Rings & bearings.

Full Diagram

#25

Adapter housing. Balance shafts. Oil cooler. Oil pan. Oil pump. Variable valve timing. Express 2500; 0.5MM O/S; Left. Express 2500; 0.5MM O/S; Right. Express 2500; Driven. Express 2500; Exhaust. Express 2500; Intake. Express 2500; Left. Express 2500; Oval. Express 2500; Retainer Plate Seal. Express 2500; Right. Express 2500; Round (High Pressure Port). Express 2500; Standard; Left. Express 2500; Standard; Right. Express 3500; 0.5MM O/S; Left. Express 3500; 0.5MM O/S; Right. Express 3500; Driven. Express 3500; Exhaust. Express 3500; Intake. Express 3500; Left. Express 3500; Oval. Express 3500; Retainer Plate Seal.

Express 2500. Express 3500. Savana 2500. Savana 3500.