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.
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HOMESERVICE MANUALSCHEVROLET1999ASTRO VAN 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISAPPLICATION AND IDRPO CODESRPO CODE LABEL INFORMATION
1999 Chevrolet Astro Van 2WD V6-4.3L VIN W
RPO Code Label Information
1999 Chevrolet Astro Van 2WD V6-4.3L VIN WSECTION RPO Code Label Information
Typical RPO Label:
DESCRIPTION
The Regular Production Option (RPO) label is placed on the vehicle to aid service and parts personnel in identifying parts and options originally installed on the vehicle. A typical RPO label is shown in the accompanying image.
Knowledge of the RPO identification system can help identifying and ordering parts. Systems and assemblies may be uniquely identified by refering to the label.
GM assigns a three digit/letter code to parts, assemblies, and systems. These RPO codes designate "options" and are assigned by General Motors. Some system testing and part suppliers require RPO information to accurately match systems, parts and assemblies.
LOCATION OF RPO LABEL
Locations of RPO labels vary by carline.
REPLACEMENT LABELS
Replacement labels are available through GM Service Parts Operations (SPO) for the following:
^ Vehicle Emission Control Information (Exhaust Emission Tune-up)
^ Spare Wheel Caution
^ Jacking
^ Spare Tire Storage
^ Serpentine Belt Routing
^ Engine Fan Caution
These and other labels will be found in the Standard Parts Catalog.
The Vehicle Certification Label, Tire Pressure Placard, and Service Parts Identification Label are not available as service parts.
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.