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Description
Billet Bypass Fuel Pressure Regulator Kit 4.5-9 Psi W/Fittings & Gauge-12-841KITHolley Billet Bypass Style Fuel Pressure Regulator Kits are part of a complete line of fuel system products from Holley. The included 12 841 regulator features a billet aluminum body and a black finish for corrosion resistance and good looks. The regulator contains 3 8" NPT in out ports, a 3 8" NPT return port, a 1 8" NPT gauge port. In addition, 3 adapter fittings, a barbed fitting for the vacuum port, a mounting bracket, and all necessary hardware
Holley Billet Bypass Style Fuel Pressure Regulator Kits are part of a complete line of fuel system products from Holley. The included 12-841 regulator features a billet aluminum body and a black finish for corrosion resistance and good looks. The regulator contains 3/8" NPT in/out ports, a 3/8" NPT return port, a 1/8" NPT gauge port. In addition, 3 adapter fittings, a barbed fitting for the vacuum port, a mounting bracket, and all necessary hardware are also included.
Features:
- Adjustable from 4.5-9 psi for precise fuel pressure adjustments
- Used in return style systems with a line back to the fuel tank
- 38" NPT Ports
- 1/8” NPT Gauge Port and Earl's Fuel Pressure Gauge (100187ERL)
- Fuel Gauge and adapter fittings included
- Mounting Bracket Included
FEATURES
- Designed to deliver trouble-free, consistent performance
- Right for your vehicle and lifestyle
- Made from high-quality materials for ultimate durability
- Manufactured to meet or exceed strict quality requirements
- If you have any questions or need fitment information for your vehicle, please contact with us
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
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★★★★★ 5
The Answer
Format: Imitation Leather
I purchased this book of Devotions as I was looking for a guide that would be simple to follow and compact. It seemed like I always was making excuses for not being as diligent with my faith. It was easy to tell my self that I could not keep up with God or travel with a guide as it was too inconvenient or bulky. From a content and simplicity to stay focussed, this was the source I needed. From a convenience standpoint, it could not be any better. I had tried apps and digital versions previously and it just wasn't the same. Holding a book and leafing through the pages just feels so much better to me. A definite must for those of you looking for a impactful, yet small and convenient way to continue the journey.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
One minute with god
Format: Imitation Leather
Perfect way to start my morning. Spiritual and uplifting.
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Reviewed in the United States on April 2, 2026
★★★★★ 5
Absolutely best gift for men
Format: Imitation Leather
I purchased this for my boyfriend for Christmas. He absolutely loved reading this daily!
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Reviewed in the United States on February 2, 2026
★★★★★ 5
Nice Little Book - Easy to Read Printed Text
Format: Imitation Leather
Just what I needed. A quick thoughtful and thought provoking quick read everyday. Every morning for me! I can't say enough good about this little book, content-wise. I CAN say it is a handsome little almost pocket sized book. Good quality cover (leather). Easy to ready text
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Reviewed in the United States on December 30, 2025
★★★★★ 5
Great gift
Format: Imitation Leather
Bought this for my boyfriend he seems to really like it
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Reviewed in the United States on February 25, 2026
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