2021 Chevrolet Express 3500 Engine Timing Chain Guide - 12671643

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2021 Chevrolet Express 3500

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Engine Timing Chain Guide

Part Number: 12671643
Supersession(s): 12722036

View Engine Timing Chain Guide Full-Sized Product Image 1 of 1

Engine Timing Chain Guide. Guide Assembly - Timing Chain.
Guide for the Timing Chain.

Engine Timing Chain Guide

Fits Canyon, Colorado, CT4, Sierra 1500, Sierra 1500 Limited, Silverado

Canyon; Slack Side (Fixed). Colorado; Slack Side (Fixed). CT4; Slack Side. Silverado, Sierra; Right (Fixed).
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 2021 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

#18

Adapter housing. Balance shafts. Filters. Oil cooler. Oil pan. Oil pump. Variable valve timing. Sierra; 4WD; Left. Sierra; 4WD; Right. Sierra; All Lower Journals. Sierra; Exhaust. Sierra; Inlet. Sierra; Intake. Sierra; Journal 1. Sierra; Journals 2 & 4. Sierra; Journals 3 & 5. Sierra; Left (Pivot). Sierra; Lower; 1st Design. Sierra; Lower; 2nd Design. Sierra; Outlet. Sierra; Right (Fixed). Sierra; RWD; Left. Sierra; RWD; Right. Sierra; Upper. Sierra; w/Head Bolts. Sierra; w/o Head Bolts.

Sierra; Right (Fixed). Silverado.

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

Full Diagram

#23

Adapter housing. Balance shafts. Oil cooler. Oil pan. Oil pump. Variable valve timing. CT4; AWD; Left. CT4; AWD; Right. CT4; Drive; From 07/15/22. CT4; Drive; To 07/14/22. CT4; Driven. CT4; Exhaust. CT4; From 04/17/23. CT4; Inlet. CT4; Intake. CT4; Lower; awd. CT4; Lower; RTV Liquid Sealer. CT4; Lower; RWD; Aluminum. CT4; Lower; RWD; Plastic. CT4; Outlet. CT4; RTV Sealant; Lower. CT4; RTV Sealant; Upper. CT4; rwd. CT4; Slack Side. CT4; Tension Side. CT4; To 04/17/23.

CT4; Slack Side.

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

Full Diagram

#23

Adapter housing. Balance shafts. Oil cooler. Oil pan. Oil pump. Variable valve timing. Canyon; Aluminum. Canyon; Drive; From 07/15/22. Canyon; Drive; To 07/14/22. Canyon; Driven. Canyon; Exhaust (Right). Canyon; From 11/25/22. Canyon; Inlet. Canyon; Intake (Left). Canyon; Left. Canyon; Lower; RTV Sealer. Canyon; Outlet. Canyon; Plastic. Canyon; Primary Chain. Canyon; Right. Canyon; RPO L3B. Canyon; RTV Sealer. Canyon; Slack Side (Fixed). Canyon; Tensioner Side (Pivot). Canyon; To 11/24/22. Canyon; Upper; Journal# 1.

Canyon; Slack Side (Fixed). Colorado; Slack Side (Fixed).