BBB Industries 7273-3 Alternator

Reliable Alternator Replacement for GM Vehicles

The BBB Industries REMAN ALTERNATOR 7273-3 is designed to provide dependable electrical charging for a wide range of General Motors vehicles. Engineered to meet OE specifications, this alternator ensures consistent 12-volt power output with a 78-amp rating, suitable for models like Chevrolet Blazer, GMC Sierra, and Pontiac Bonneville.

• 78 Ampere Rating for steady electrical output
• Air cooling method with external fan included
• Conventional pulley with 2-1/2 inch diameter and V-belt compatibility
• Internal voltage regulator for stable voltage control
• Negative polarity and clockwise rotation direction
• OE Manufacturer: Delco/Delphi
• Plug clock position at 3 o'clock for proper fitment

About the REMAN ALTERNATOR Product Line

The REMAN ALTERNATOR line by BBB Industries offers remanufactured alternators that meet original equipment standards. This product line focuses on restoring alternators to reliable working condition using quality components and testing procedures. The 7273-3 alternator maintains the original Delco/Delphi design, ensuring compatibility and performance for GM trucks, SUVs, and passenger cars.

Technical Details and Features

This alternator features a 78-amp output suitable for vehicles requiring moderate electrical loads. It uses an air cooling system enhanced by an external fan to maintain optimal operating temperatures. The included conventional pulley with a single groove fits V-belt drive systems, measuring 2-1/2 inches in diameter. The internal voltage regulator manages voltage output, protecting the vehicle’s electrical system. Designed with negative polarity and clockwise rotation, it matches the specifications of many GM models from Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac.

Compatible Vehicles and Applications

• Chevrolet Blazer, C10, C1500, Camaro, Impala, and S10
• GMC Sierra, Jimmy, K1500, and Safari
• Buick Century, LeSabre, and Regal
• Cadillac DeVille and Seville
• Pontiac Bonneville, Grand Prix, and Firebird

Common Issues Addressed by This Alternator

• Battery not charging or frequent battery drain
• Dimming or flickering headlights and dashboard lights
• Electrical system warning lights illuminated on the dash
• Unusual noises from the alternator pulley or fan
• Failure to start due to insufficient electrical power

Installation Notes and Tips

Ensure the vehicle’s battery is disconnected before installation to prevent electrical shorts. Verify the plug clock position at 3 o’clock matches the vehicle’s wiring harness. Confirm the V-belt is in good condition and properly tensioned to avoid premature wear. This alternator includes the pulley, so no additional parts are required for pulley replacement. Follow manufacturer torque specifications for mounting bolts and electrical connections.

Quality Assurance and Warranty

BBB Industries remanufactured alternators undergo rigorous testing to meet or exceed OE performance standards. The 7273-3 alternator is built with quality components, including an internal voltage regulator and external cooling fan, to ensure durability and reliable operation. Warranty coverage details should be confirmed with the distributor or retailer at the time of purchase.