Chevy V8 Chrome Steel Water Pump Pulley Bolt Set

• Set of 4 chrome steel Allen-head bolts for Chevy V8 water pump pulleys

• 5/16-24 thread, 3/4" length, matched to common Chevy V8 pulley bolt specs

• Allen-head design for clean tool access in tight accessory drive spaces

• Replaces missing, worn, or mismatched water pump pulley hardware

This is a set of 4 chrome steel Allen-head bolts designed for Chevrolet V8 water pump pulley applications using 5/16-24 threaded pulley bolts. Each bolt measures 3/4" in thread length, matched to common Chevy V8 water pump pulley mounting requirements.

This bolt set is a common fix for missing, worn, stripped, or mismatched water pump pulley hardware on small block and big block Chevy V8 builds, restorations, and engine swaps. The Allen-head design allows for clean tool access in tight front accessory drive spaces, and the chrome finish keeps hardware looking finished alongside polished or chrome accessory drive components.

Always verify bolt thread size and under-head length against your specific pulley and water pump hub before installation, since thread specs can vary by water pump and pulley combination. This set includes hardware only — it does not include a pulley or water pump. Sold as a set of 4.

Chrome Allen-Head Bolts Sized for Common Chevy V8 Pulley Threads
This set of 4 chrome steel bolts uses an Allen-head design with a 5/16-24 thread and 3/4" thread length, sized to match common Chevrolet V8 water pump pulley mounting requirements.

Replaces Worn or Mismatched Hardware to Keep Belt Drive Secure
Stripped, rusted, or mismatched pulley bolts can lead to a loose or misaligned pulley, affecting belt tracking and accessory drive performance. This chrome bolt set gives you a clean, correctly sized replacement to keep your water pump pulley securely mounted.

What's included in this kit?
This kit includes a set of four chrome steel Allen-head bolts with 5/16-24 threads and a 3/4-inch thread length. The water pump pulley and water pump are not included.

What thread size are these bolts?
Each bolt features a 5/16-24 thread with a 3/4-inch thread length.

What material are these bolts made from?
These bolts are manufactured from steel and feature a durable chrome finish.

Will these fit my water pump pulley?
They are sized for many Chevrolet V8 water pump pulley applications using 5/16-24 threaded mounting holes. Always verify the thread size and bolt length for your specific water pump and pulley before ordering.

Why use Allen-head bolts instead of standard hex bolts?
Allen-head bolts provide improved tool access in tight accessory drive areas while offering a clean, custom appearance.

Can I use these to replace stripped or worn pulley bolts?
Yes. This set is commonly used to replace missing, damaged, or worn water pump pulley mounting bolts.

Will these work on a Small Block or Big Block Chevy build?
Yes. They are commonly used on Chevrolet Small Block and Big Block V8 water pump pulley applications that utilize 5/16-24 mounting threads. Always verify compatibility with your specific water pump and pulley.