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Description
REGULATOR KITDescription Quicksilver REGULATOR KIT (43 PSI) Part No: 861126A1 Superseded from: Fits the following: 7. 4L MPI MIE (L29) GEN. VI GM 454 V 8 1998 2000 [0L002006 THRU 0L674613] 500 EFI [0L001496 THRU 0L306499] 500 EFI [0L307028 THRU 0L602036] 525 EFI [0M962886 & Up] 525 EFI [0M956327 THRU 0M962885] 8. 1L INBOARD (Base) [0M319125 THRU 0W089999] 8. 1L INBOARD (H. O.) [0M319191 THRU 0W089999] 8. 1L INBOARD (Base) [0M026000 THRU 0M319124] 8. 1L INBOARD (H.
Description
Quicksilver - REGULATOR KIT (43 PSI)
Part No: 861126A1Superseded from:
Fits the following:
7.4L MPI MIE (L29) GEN. VI GM 454 V-8 - 1998-2000 [0L002006 THRU 0L674613]
500 EFI - [0L001496 THRU 0L306499]
500 EFI - [0L307028 THRU 0L602036]
525 EFI - [0M962886 & Up]
525 EFI - [0M956327 THRU 0M962885]
8.1L INBOARD (Base) - [0M319125 THRU 0W089999]
8.1L INBOARD (H.O.) - [0M319191 THRU 0W089999]
8.1L INBOARD (Base) - [0M026000 THRU 0M319124]
8.1L INBOARD (H.O.) - [0M026000 THRU 0M319190]
500 EFI - [0L306500 THRU 0L307027]
500 EFI - [0M050001 THRU 0M050853]
500 EFI - [0M052001 THRU 0M053628]
500 EFI - [0M900064 THRU 0M901284]
500 EFI - [0M905089 THRU 0M907127]
525 EFI - [0M953620 THRU 0M956326]
4.3L MPI ALPHA/BRAVO EC - [1A637496 & Up]
454 MAG MPI BRAVO (GEN VI) GM 454 V-8 - [0L085400 THRU 0M024999]
502 MAG. MPI BRAVO (GEN VI) GM 502 V-8 - [0L085433 THRU 0M024999]
7.4L BRAVO (MPI)(GEN. VI) GM 454 V-8 - 1998-2000 [0L010003 THRU 0M024330]
454 MAG. MPI HORIZON (GEN. VI) GM 454 V-8 - [0L086050 THRU 0L674000]
8.2L MIE MPI (GEN. VI) GM 502 V-8 - [0L086013 THRU 0L674200]
4.3L MPI ALPHA/BRAVO - [0M300000 THRU 0M614999]
5.0L MPI ALPHA/BRAVO - [0M300000 THRU 0M599999]
350 MAG MPI ALPHA/BRAVO - [0M300000 THRU 0M599999]
350 MAG MPI HORIZON ALPHA/BRAVO - [0M300000 THRU 0M599999]
6.2L MPI BRAVO - [0M300000 THRU 0M599999]
6.2L MPI HORIZON BRAVO - [0M300000 THRU 0M599999]
350 MAG MPI MIE - [0M310000 THRU 0M316999]
350 MAG MPI HORIZON MIE - [0M310000 THRU 0M316999]
6.2L MPI HORIZON MIE - [0M310000 THRU 0M316999]
6.2L MPI MIE - [0M310000 THRU 0M316999]
350 MAG MPI MIE - [0M317000 THRU 0M398371]
350 MAG MPI HORIZON MIE - [0M317000 THRU 0M398371]
6.2L MPI HORIZON MIE - [0M317000 THRU 0M398394]
6.2L MPI MIE - [0M317000 THRU 0M398394]
350 MAG MPI SKI - [0M300000 THRU 0M316999]
350 MAG MPI SKI - [0M317000 THRU 0W689999]
6.2L MPI SKI - [0M317000 THRU 0W689999]
496 MAG (Base Model) - [0M687083 THRU 0W059999]
496 MAG (H.O. Model) - [0M687144 THRU 0W059999]
496 MAG (Base Model) - [0M025000 THRU 0M687082]
496 MAG (H.O. Model) - [0M025000 THRU 0M687143]
4.3L MPI ALPHA/BRAVO - [0W310000 THRU 0W649999]
4.3L MPI ALPHA/BRAVO - [0W650000 THRU 0W658582]
4.3L MPI ALPHA/BRAVO - [0W658584 THRU 1A030367]
4.3L MPI ALPHA/BRAVO - [1A030370 THRU 1A063239]
4.3L MPI ALPHA/BRAVO - [0W658583 THRU 0W658583]
4.3L MPI ALPHA/BRAVO - [1A030368 THRU 1A030369]
4.3L MPI ALPHA/BRAVO - [1A063240 & Up]
4.3L MPI ALPHA/BRAVO - [0M615000 THRU 0W309999]
5.0L MPI ALPHA/BRAVO - [0W060000 THRU 0W309999]
350 MAG MPI ALPHA/BRAVO - [0W060000 THRU 0W309999]
350 MAG MPI HORIZON ALPHA/BRAVO - [0W060000 THRU 0W309999]
6.2L MPI BRAVO - [0W060000 THRU 0W309999]
6.2L MPI HORIZON BRAVO - [0W060000 THRU 0W309999]
5.0L MPI ALPHA/BRAVO - [0W310000 THRU 0W649999]
350 MAG MPI ALPHA/BRAVO - [0W310000 THRU 0W649999]
350 MAG MPI HORIZON ALPHA/BRAVO - [0W310000 THRU 0W649999]
6.2L MPI BRAVO - [0W310000 THRU 0W649999]
6.2L MPI HORIZON BRAVO - [0W310000 THRU 0W649999]
350 MAG MPI ALPHA/BRAVO - [0W650000 THRU 1A299999]
6.2L MPI BRAVO - [0W650000 THRU 1A299999]
6.2L MPI HORIZON BRAVO - [0W650000 THRU 1A299999]
350 MAG MPI HORIZON ALPHA/BRAVO - [0W650000 THRU 1A299999]
5.0L MPI ALPHA/BRAVO - [0W650000 THRU 1A299999]
5.0L MPI ALPHA/BRAVO - [1A300000 THRU 1A611927]
350 MAG MPI ALPHA/BRAVO - [1A300000 THRU 1A611927]
377 MAG MPI BRAVO - [1A300000 THRU 1A611927]
5.0L MPI ALPHA/BRAVO - [1A611928 THRU 1A623184]
350 MAG MPI ALPHA/BRAVO - [1A611928 THRU 1A623184]
377 MAG MPI BRAVO - [1A611928 THRU 1A623184]
5.0L MPI ALPHA/BRAVO - [0M600000 THRU 0W059999]
350 MAG MPI ALPHA/BRAVO - [0M600000 THRU 0W059999]
350 MAG MPI HORIZON ALPHA/BRAVO - [0M600000 THRU 0W059999]
6.2L MPI BRAVO - [0M600000 THRU 0W059999]
6.2L MPI HORIZON BRAVO - [0M600000 THRU 0W059999]
5.0L MPI ALPHA/BRAVO - [1A623185 & Up]
350 MAG MPI ALPHA/BRAVO - [1A623185 & Up]
377 MAG MPI BRAVO - [1A623185 & Up]
565 EFI - [0M967821 & Up]
350 MAG MPI SKI - [0W690000 THRU 1A089999]
5.7L MPI SKI - [1A090000 & Up]
350 MPI ALPHA - [1G400000 THRU 1G499999]
350 MPI BRAVO - [1G400000 THRU 1G499999]
357 HRZ BOBTAIL RM - [1G300000 THRU 1G399999]
383 MAG STROKER BRAVO - [1G400000 THRU 1G499999]
385 Performance Tuned - [1G400000 THRU 1G499999]
350 HORIZON BOBTAIL - [1G700000 THRU 1G799999]
383 MPI FWC Bravo - [1G700000 THRU 1G799999]
525 EFI - [0M900146 THRU 0M953619]
350 MPI Alpha/Bravo - [1G700000 THRU 1G799999]
5.0L MPI ALPHA/BRAVO EC - [1A300000 THRU 1A611927]
350 MAG MPI HORIZON ALPHA/BRAVO EC - [1A300000 THRU 1A611927]
350 MAG MPI ALPHA/BRAVO EC - [1A300000 THRU 1A611927]
377 MAG MPI BRAVO EC - [1A343300 THRU 1A611927]
5.0L MPI ALPHA/
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4.7 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
This is everything you could want in a good pillow for a good sleep
Size: Queen
This is truly the very best pillow on the planet. So really comfortable, doesn't loose its shape and for a good sleep, this is it.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
This is Truly the Best Pillow!
Size: Queen
This is the side sleeper version of the best pillow out there.
My 26 year old son was always complaining about his pillow and his neck and back hurting. About every year I’d buy him the next “best” pillow promising to be the best but they never worked for him. I read an article saying THIS pillow was the “Goldilocks” of pillows. So since he sleeps in all positions, I got him the regular shaped pillow. The next morning after his first night with the pillow, he came out of his room talking about how wonderful his pillow is. Same thing the next morning. And the next. And the next. Then I thought to myself, my current pillow is the best I’ve had but I’m not in love with it. But I’m a side sleeper so I purchased this particular contoured pillow for me. NOW I UNDERSTOOD WHAT MY SON WAS TALKING ABOUT. I became the person who went on and on about my pillow. Until my husband told me to replace his with one of these side sleeping versions for himself. And he loves it. Then we got a regular pillow (for those who sleep in all positions, but this same company) for our guests. My best friend came to visit, immediately noticed the pillow upgrade from previous visits and when she returned home, she purchased one for herself.
This pillow is like a feather pillow except it is filled with tiny squares of memory foam. And it comes with an extra pack of stuffing, so you can add or remove stuffing to customize it perfectly for you. None of us in the house added filling, and my son removed some that came with his pillow. I also sleep with a body pillow and have for years. And I was wishing this came in a body pillow version until I realized I could make my own. I bought a zippered body pillow case. The larger size. I think it was 54 inches long. And I bought a king size pillow and used the extra stuffing pack that came with that pillow along with the 4 packs that came with the other pillows that we didn’t use. Though you could probably do the same thing with two standard size pillows. These pillows are on the expensive side but they go on sale during every holiday. That’s when I purchase them. Oh and my body pillow is HEAVEN. Between that and the pillow, I spend my nights in fluffy cloud goodness.
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Reviewed in the United States on May 31, 2026
★★★★★ 3
Not as great as I was hoping.
Size: Queen
I was hoping this was going to be my miracle pillow. I have had terrible neck pain for years. It arrived with too much stuffing. Removed some and it caused terrible occipital headaches. I’ve slowly been adding stuffing, hoping to find the right fit.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Best pillow ever!!!
Size: Sapphire Queen
I have actually tried dozens and dozens of pillows in my life, and dozens in the past three years, but this is it. Some cheap, some very very expensive, and some very famous brands. This one beats them all. So awesome and comfortable (side sleeper). I tried one and loved it so much I ordered a second right away. It is exactly what I've been searching for forever!!!
Stays in shape, extremely comfortable. Only thing is you definitely need a 32" pillowcase to cover it, and I wish they made a 34" pillowcase, but no luck. I used the pillow the same night and it's definitely worth the money.
No neck pain, super squishy but supportive, and no odor.
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Reviewed in the United States on October 31, 2025
★★★★★ 5
Great pillow
Size: Sapphire King, Size: Sapphire King
Super comfy pillow. Fluffs up without any issues and it was the first night in a long time I wasn't allover the bed trying to get comfortable. I appreciate the fact that the material in the pillow can be washed. The prefill was perfect for me so I did not need to remove or add but I like the option to do so. 10/10
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Reviewed in the United States on April 21, 2026