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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
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Description
EFI Crank Trigger Kit - 556-116Overview: Holley's EFI Crank Trigger Kit is engineered to provide an accurate crank speed & position signal to Holley EFI systems in the most demanding, high horsepower, racing applications. Crank position is measured every 10 degrees as opposed to every 45 degrees for a standard 4 Magnet, MSD "style" Crank trigger. It is designed for use on early model small block Chevy applications using a standard ATI or Fluidamper "style" balancer up to 7 1 4" in
Overview:
Holley's EFI Crank Trigger Kit is engineered to provide an accurate crank speed & position signal to Holley EFI systems in the most-demanding, high horsepower, racing applications. Crank position is measured every 10 degrees as opposed to every 45 degrees for a standard 4-Magnet, MSD "style" Crank trigger. It is designed for use on early model small block Chevy applications using a standard ATI or Fluidamper "style" balancer up to 7-1/4" in diameter.
Features:
- 8” diameter, 1/4” thick, billet steel, 36-1 tooth, crank wheel with Black Zinc Oxide finish for superior corrosion resistance & striking good looks.
- Crank wheel centers off of the balancer’s hub, eliminating the need for a centering ring
- All billet, 6061-T6 aluminum sensor mounting brackets with “bright-dipped” black anodized finish & Laser etched Holley EFI logo
- Custom 3-wire, ferrous-target, Hall-effect sensor with M12X1mm threads for finer gap adjustment
- All Grade 8 & Mil. Spec mounting hardware
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1983 - 1987 | Excalibur | Phaeton | 305/5 V8 | |
| 1986 - 1989 | Excalibur | Phaeton | 350/5.7 V8 | |
| 1977 - 1981 | Buick | Century | 305/5 V8 | |
| 1980 - 1981 | Buick | Century | 265/4.3 V8 | |
| 1981 | Buick | Century | 267/4.4 V8 | |
| 1978 | Buick | LeSabre | 305/5 V8 | |
| 1982 | Buick | LeSabre | 267/4.4 V8 | |
| 1977 - 1987 | Buick | Regal | 305/5 V8 | |
| 1980 - 1981 | Buick | Regal | 265/4.3 V8 | |
| 1981 - 1982 | Buick | Regal | 267/4.4 V8 | |
| 1975 - 1986 | Chevrolet | C10 | 350/5.7 V8 | |
| 1977 - 1986 | Chevrolet | C10 | 305/5 V8 | |
| 1969 - 1986 | Chevrolet | C10 Suburban | 350/5.7 V8 | |
| 1969 - 1974 | Chevrolet | C20 Pickup | 350/5.7 V8 | |
| 1968 - 1973 | Chevrolet | C20 Pickup | 307/5 V8 | |
| 1968 - 1973 | Chevrolet | C20 Suburban | 307/5 V8 | |
| 1967 - 1969 | Chevrolet | C20 Suburban | 327/5.3 V8 | |
| 1969 - 1986 | Chevrolet | C20 Suburban | 350/5.7 V8 | |
| 1960 - 1967 | Chevrolet | C30 Pickup | 283/4.6 V8 | |
| 1966 - 1969 | Chevrolet | C30 Pickup | 327/5.3 V8 | |
| 1968 | Chevrolet | C30 Pickup | 327/5.4 V8 | |
| 1968 - 1973 | Chevrolet | C30 Pickup | 307/5 V8 | |
| 1969 - 1974 | Chevrolet | C30 Pickup | 350/5.7 V8 | |
| 1967 - 1981 | Chevrolet | Camaro | 350/5.7 V8 | |
| 1967 - 1969 | Chevrolet | Camaro | 302/4.9 V8 | |
| 1967 - 1969 | Chevrolet | Camaro | 327/5.3 V8 | |
| 1968 - 1969 | Chevrolet | Camaro | 327/5.4 V8 | |
| 1969 - 1973 | Chevrolet | Camaro | 307/5 V8 | |
| 1966 - 1967 | Chevrolet | Caprice | 283/4.6 V8 | |
| 1966 - 1969 | Chevrolet | Caprice | 327/5.3 V8 | |
| 1968 - 1969 | Chevrolet | Caprice | 327/5.4 V8 | |
| 1968 - 1973 | Chevrolet | Caprice | 307/5 V8 | |
| 1969 - 1986 | Chevrolet | Caprice | 350/5.7 V8 | |
| 1991 | Buick | Roadmaster | 305/5 V8 | |
| 1991 | Buick | Commercial Chassis | 305/5 V8 | |
| 1992 - 1993 | Buick | Commercial Chassis | 350/5.7 V8 | |
| 1977 - 1979 | Buick | Skylark | 305/5 V8 | |
| 1970 - 1975 | Chevrolet | Bel Air | 400/6.6 V8 | |
| 1969 - 1975 | Chevrolet | Bel Air | 350/5.7 V8 | |
| 1975 - 1979 | Chevrolet | K5 Blazer | 400/6.6 V8 | |
| 1975 - 1986 | Chevrolet | K5 Blazer | 350/5.7 V8 | |
| 1977 - 1986 | Chevrolet | K5 Blazer | 305/5 V8 | |
| 1968 - 1973 | Chevrolet | K10 Pickup | 307/5 V8 | |
| 1969 - 1974 | Chevrolet | K10 Pickup | 350/5.7 V8 | |
| 1968 | Chevrolet | K10 Suburban | 327/5.4 V8 | |
| 1968 - 1973 | Chevrolet | K10 Suburban | 307/5 V8 | |
| 1967 - 1969 | Chevrolet | K10 Suburban | 327/5.3 V8 | |
| 1969 - 1986 | Chevrolet | K10 Suburban | 350/5.7 V8 | |
| 1960 - 1967 | Chevrolet | K20 Pickup | 283/4.6 V8 | |
| 1966 - 1969 | Chevrolet | K20 Pickup | 327/5.3 V8 | |
| 1968 | Chevrolet | K20 Pickup | 327/5.4 V8 | |
| 1968 - 1973 | Chevrolet | K20 Pickup | 307/5 V8 | |
| 1969 - 1974 | Chevrolet | K20 Pickup | 350/5.7 V8 | |
| 1969 - 1973 | Chevrolet | Nova | 307/5 V8 | |
| 1969 - 1979 | Chevrolet | Nova | 350/5.7 V8 | |
| 1955 - 1957 | Chevrolet | One-Fifty Series | 265/4.3 V8 | |
| 1957 | Chevrolet | One-Fifty Series | 283/4.6 V8 | |
| 1961 - 1962 | Chevrolet | P10 Series | 283/4.6 V8 | |
| 1973 | Chevrolet | P10 Van | 350/5.7 V8 | |
| 1973 | Chevrolet | P10 Van | 307/5 V8 | |
| 1961 - 1962 | Chevrolet | P20 Series | 283/4.6 V8 | |
| 1968 - 1973 | Chevrolet | P20 Van | 307/5 V8 | |
| 1970 - 1974 | Chevrolet | P20 Van | 350/5.7 V8 | |
| 1961 - 1962 | Chevrolet | P30 Series | 283/4.6 V8 | |
| 1968 - 1973 | Chevrolet | P30 Van | 307/5 V8 | |
| 1970 - 1974 | Chevrolet | P30 Van | 350/5.7 V8 | |
| 1960 - 1966 | Chevrolet | Suburban | 283/4.6 V8 | |
| 1966 | Chevrolet | Suburban | 327/5.3 V8 | |
| 1969 - 1972 | Chevrolet | Townsman | 350/5.7 V8 | |
| 1969 - 1972 | Chevrolet | Townsman | 307/5 V8 | |
| 1969 | Chevrolet | Townsman | 327/5.3 V8 | |
| 1992 - 1993 | Buick | Roadmaster | 350/5.7 V8 | |
| 1970 - 1974 | Chevrolet | G10 Van | 350/5.7 V8 | |
| 1968 - 1973 | Chevrolet | G10 Van | 307/5 V8 | |
| 1967 | Chevrolet | G20 Van | 283/4.6 V8 | |
| 1968 - 1973 | Chevrolet | G20 Van | 307/5 V8 | |
| 1970 - 1974 | Chevrolet | G20 Van | 350/5.7 V8 | |
| 1970 - 1974 | Chevrolet | G30 Van | 350/5.7 V8 | |
| 1958 - 1967 | Chevrolet | Impala | 283/4.6 V8 | |
| 1962 - 1969 | Chevrolet | Impala | 327/5.3 V8 | |
| 1964 - 1969 | Chevrolet | Impala | 327/5.4 V8 | |
| 1968 - 1973 | Chevrolet | Impala | 307/5 V8 | |
| 1969 - 1985 | Chevrolet | Impala | 350/5.7 V8 | |
| 1972 - 1974 | Pontiac | Firebi |
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
4.8 ★★★★★
Based on 919 reviews
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Product Reviews
★★★★★ 4
Simple, Reliable, and Works Great
Size: 1 Pack, Style: USB Receiver, Color: Swift Grey
The Logitech M185 has been exactly what I needed for everyday computer use. Setup took less than a minute—just plug in the tiny USB receiver and it was ready to go. The mouse responds smoothly, tracks accurately, and feels comfortable in my hand even after several hours of use.
What I appreciate most is the reliability. The wireless connection has been stable with no noticeable lag or dropouts, and the battery life has been excellent. For browsing, office work, and general daily tasks, this mouse delivers solid performance at a very reasonable price. I'm extremely happy with it.
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Reviewed in the United States on June 11, 2026
★★★★★ 5
Great.
Size: 1 Pack, Style: USB Receiver, Color: Swift Grey
Great deal. Works great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Great mouse
Size: 1 Pack, Style: USB Receiver, Color: Swift Grey
It synced right up and is working great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
★★★★★ 5
Basic mouse that works - - for now.
Size: 1 Pack, Style: USB Receiver, Color: Blue
I ordered this mouse (in blue) to replace the recently deceased exact same model that I've used for the past 2 or 3 years. I like the simplicity of the M185 mouse and mostly the best bang for your buck! I caught this one on sale for less than a ten-spot, so I thought, "why not."
I'm hoping that this one will last a bit longer than my two previous M185 models, that averaged about 3 years each. This model seems plagued by a short life span and is predisposed to mysteriously and suddenly dying, without any obvious symptoms or warning of any kind - - you're working and clicking along, going about your day, when suddenly the cursor on the computer screen freezes and that's it. Nothing, zero, nada. Funny thing, I'm very careful not to abuse or drop the mouse, and keep a fresh battery installed and watch for leakage and all that stuff - - they just stop working, and I assume it is caused by some sort of inherent electronic fault in the circuitry of the previous M185's. Due to my loyalty to the brand and model (and since it was on sale) I decided to give it one more shot. They say that "third time's a charm".
I like the fact that the M185 is simple and uncluttered with extra buttons that I would never use for my purpose, which is simple web-browsing and the occasional text document production. The feel is solid, not heavy, but not cheap feeling, either. I'm used to the shape of this mouse, which to me is quite comfortable for long sessions, another reason why I kind of wanted to stay with this model. The buttons have an audible "click", which doesn't bother me at all, and the wheel moves smoothly and also has a clicking operation (which I rarely ever use). The overall surface of the mouse has a matte finish, but like my previous models I'm sure it will eventually wear shiny spots where my fingers reside and will attain a more "well-used" look in time. Connecting it was a breeze, too. I just plugged the dongle into a spare rear usb port of my desktop, and the mouse connected instantly, no problem. The dongle can be stored safely inside the battery compartment, so you can take the whole thing out of the house if needed for use elsewhere. The speed of 1000 dpi seems just right for my purposes. The one I ordered even came with its own AA Duracell battery, which I wasn't really expecting. This mouse also enters "sleep mode" when you don't use it for a while, and I can't say how many times I've got up and left it on all night. And that's not hard to do, as I'll explain next.
The only real negative to this mouse is the absence of any easily visible status indicator of it's on / off switch. The rear housing of this mouse is matte black, including the tiny switch where you turn it on and off with your fingernail, with only a very faint "on" lettering (also black), and very hard to see with my aging eyes. The laser is not lighted or visible when on, also adding to the confusion, especially in a darkened room. So, as a workaround, I took a tiny drop of green paint and placed it down inside the switch slider to visibly help indicate the "on" position, and likewise a dot of bright orange for the "off" position. Many of Logitech's more expensive models (and a few other manufacturers) include this color-coded switch indication. I guess for the $$, they had to cut corners somewhere - - a minor complaint.
In summary, this is a good basic mouse that works - - let's hope that this one will last longer than its two predecessors.
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Reviewed in the United States on February 17, 2023
★★★★★ 5
Dependable, Reliable
Size: 1 Pack, Style: USB Receiver, Color: Swift Grey, Size: 1 Pack, Style: USB Receiver, Color: Swift Grey
As advertised. Logitech, best mouse for your hard-earned cheddar!
It’s not that the (years) old Logitech mouse failed in any operational way, it just got that gummy, sticky surface texture that’s impossible to remove. While shopping for a replacement I noticed an off-brand mouse/keyboard combo and thought, “hey, 2 for 1”…mistake. All was well for about three weeks, long enough that when the gremlins arrived I didn’t immediately associate the new hardware. For the purposes of this discussion, gentle reader, know that I run legacy (what I affectionately refer to as, “Lazarus”) builds. Rigs that started life running Windows Vista/7, died, and that now, resurrected, run 10 and 11, and all that that implies. So, when a mouse started stuttering, of course I thought it was a gremlin in the machine, right? I spent more days than I am comfortable sharing with you pouring over processes and background apps, and registry trims…before Accam’s Razor suggested I eliminate the mouse as a variable. Changing the battery was ineffective, but when I swapped in the ooold Logitech…Yahtzee/Bingo/Booyah…smooth and precise…butter! All I needed was a new Logitech mouse.
So, if you’re here you likely are having mouse issues of your own, or you just need one that works…this is it!
😉
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Reviewed in the United States on May 13, 2026