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- USA
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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Description
Universal 8 Dual Zinc Power Brake Booster PB8531Overview: Universal 8" Dual Diaphragm Power Brake Booster Zinc Chromate finish 3 3 8" Bolt Pattern (Firewall Side) 3 3 8" Center to Center Bolt Hole (Master Cylinder Side) Uses adjustable pin Great for installs on GM A, F, X, Body Cars with Big Blocks or Engines with tall headers Notes: These boosters will work on a variety of GM, Ford, Trucks, and Passenger Cars. When ordering an universal brake booster please make sure you have the correct brackets
Overview:
Universal 8" Dual Diaphragm Power Brake Booster
- Zinc Chromate finish
- 3-3/8" Bolt Pattern (Firewall Side)
- 3-3/8" Center to Center Bolt Hole (Master Cylinder Side)
- Uses adjustable pin
- Great for installs on GM A, F, X, Body Cars with Big Blocks or Engines with tall headers
Notes:
- These boosters will work on a variety of GM, Ford, Trucks, and Passenger Cars. When ordering an universal brake booster please make sure you have the correct brackets or pedal assembly for your application.
- Will need adjustable pedal rod extension and the correct clevis for your application.
- Length from mount face to M.C. mount face is 5-1/4". Pushrod extends 4" from mount face and has 3/8"-24 threads. Mount bolts are 5/16"-20 x 7/8".
Specs:
| Part Number | PB8531 |
| Brake Booster Type | Vacuum Diaphragm |
| Brake Booster Finish | Cadmium Zinc plated |
| Mounting Pattern | 3-3/8 in Square |
| Brake Booster Diameter | 8 in Dual |
| Length | 5.5 in |
| Rod Length |
4 in |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 1399 reviews
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Product Reviews
★★★★★ 2
poor fit and quality
Color: Brown, Size: Large
Poor quality. You'll get two wears out of it that's it. Material feels cheep and wears cheep.
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Excelente artículo
Es lo que se ve en la foto.
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Reviewed in the United States on September 26, 2025
★★★★★ 3
Booo
Color: Pink, Size: Medium
Way too big for, I'm so bummed because this knit polo long sleeve shirt is way too big, even after I checked the size guide. It's a shame because the material feels pretty nice. I was really looking forward to wearing this. I can exchange it for a smaller size and that was too big. Lol
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Reviewed in the United States on February 19, 2026
★★★★★ 5
Nice Look
Color: White, Size: XX-Large
I love this sweater and everything about it. I purchased for family Christmas photos. I was worried it wouldn't look right or would fit too big. It fitted perfectly and gave me a very casual look. The color is white and not an off white. The quality is good and the fabric durable. It's stretchy so its flexible with your body movements. I highly recommend this sweater I'd you're looking for a light casual look. I recommend pairing with some jeans and a nice pair of boots.
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Good quality
Color: White, Size: X-Large
For a relaxed fit order true to size. Very nice quality. Value for money. Very soft. I purchased the white, is very vibrant
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Reviewed in the United States on March 31, 2026