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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
For Your Every Summer RSVP, with Code: SUMMER15
Description
Holley EFI Fuel Regulator 6ANHolley EFI Fuel Regulator 6AN Filter Regulator ASY 8AN o ring , 175 GPH, 10 Micron All die cast aluminum housing is both clear and black anodized for corrosion protection. Internal Regulator is preset at 59. 5 psi #12 888 has 3 8" NPT ports. #12 889 has 8AN o ring ports. Overview When converting your fuel system to a return style EFI setup, the biggest challenge can be plumbing the fuel lines. Holley continues to be the leader in fuel system
Holley EFI Fuel Regulator 6ANFilter Regulator ASY - 8AN o-ring , 175 GPH, 10 Micron All die cast aluminum housing is both clear and black anodized for corrosion protection. Internal Regulator is preset at 59.5 psi #12-888 has 3/8" NPT ports. #12-889 has -8AN o-ring ports.
Overview
When converting your fuel system to a return style EFI setup, the biggest challenge can be plumbing the fuel lines. Holley continues to be the leader in fuel system development to make your life easier! The new Holley EFI Filter Regulator assembly simplifies your installation by combining the fuel filter and regulator in one assembly that can be mounted in the rear of the vehicle. Thus making your return line much shorter. The die-cast aluminum assembly contains a 175 GPH 10 Micron filter and a regulator preset at 59.5 psi. The filter regulator comes in 3/8" NPT or -8AN o-ring port sizes to match most EFI fuel systems. Add billet mounting clamps; 12-574 and 12-574S
Features:
- Adjustable from 15-90 psi for precise fuel pressure adjustments
- Constructed of billet aluminum with a black anodized base and clear anodize top for good looks
- Used in systems with a return line back to tank
- Includes fitting for manifold reference
- Use with electric pumps only
- Available in -6AN and -8AN Port sizes
- 1/8-inch NPT Boost Reference Port (Ratio 1:1)
- 1/8-inch NPT Fuel Gauge Port
- Mounting bracket included
Details:
- Fuel Type: Gasoline
- Style: Bypass
- Warranty: Limited 1 Year Warranty
Links
Instruction Sheet
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
4.4 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
My fav
Size: 10 Little Kid, Color: Rose Glitter W/Strap
My daughters have had have these campana shoes in every size and every color, i love them and they do too, they are light, comfy and cute
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2024
★★★★★ 1
Arrived used for the second time.
Size: 10 Little Kid, Color: Rose Glitter W/Strap
I love Melissa sandals. The product is good, but it arrived used for the second time. It is poor store management.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Fantastic
Size: 8.5, Color: Ginger Shortbread
Great shoes!! Look fantastic
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
★★★★★ 5
Me encantas
Size: 7, Color: Perfect Black
Suaves
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Reviewed in the United States on February 4, 2026
★★★★★ 1
It has to be more wearable at all times, and not worry about having pain in the foot
Size: 7, Color: Walnut, Size: 7, Color: Walnut
I love the style and look 👀 on the outside, but unfortunately, it's not worth $250 for this flip-flop sandal. It cost me a blister just for wearing it for 15 minutes on Thursday afternoon. I want to return it, but I threw the original boxes away.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
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