Image for illustration only; it does not show the actual part or its packaging.
Yamaha OEM Part 1HS-8591A-00-00 ENGINE CONTROL UNI
- Product Code: 1HS-8591A-00-00
$1,330.92
- Genuine Yamaha OEM part
- New in original packaging
- Fits the models listed in the fitment chart
- Easy, no-hassle returns
This product is vehicle specific.
Find your vehicle to make sure this part fits before you order.
Ships in 4 to 9 days
Genuine Yamaha OEM Engine Control Uni (part number 1HS-8591A-00-00) from the Electrical 1 diagram. It fits Yamaha Grizly 550, Grizzly 550, Grizzly 550 Fi and Grizzly 550 Fi Hunting built from 2012 to 2014.
Fits these models
- Grizly 550: 2012
- Grizzly 550: 2012–2014
- Grizzly 550 Fi: 2014
- Grizzly 550 Fi Hunting: 2014
See the Fitment tab for the full list with model codes.
Need Help Finding the Right Part?
Not sure it fits? Ask before you order — our team will check the part for your machine.
For a faster answer, include:
Year, make and model of your machine- VIN or frame / serial number
- OEM part number or a photo of the old part
Email Us
(630) 886-1221Find your ride
Check your current ride below to confirm product compatibility.
Yamaha
2014
2013
- Yamaha YFM550DEG (GRIZZLY 550 FI) 1NPA 2014 ELECTRICAL 1
- Yamaha YFM550DEL (GRIZZLY 550 FI) 1NPA0 2014 ELECTRICAL 1
- Yamaha YFM550DHEH (GRIZZLY 550 FI HUNTING) 1NPE 2014 ELECTRICAL 1
- Yamaha YFM550PEG (GRIZZLY 550 FI EPS) 2LB1 2014 ELECTRICAL 1
- Yamaha YFM550PEL (GRIZZLY 550 FI EPS) 2LB10 2014 ELECTRICAL 1
- Yamaha YFM550PER (GRIZZLY 550 FI EPS) 2LB11 2014 ELECTRICAL 1
- Yamaha YFM550PHEH (GRIZZLY 550 EPS HUNTING) 2LB5 2014 ELECTRICAL 1
- Yamaha YFM5FGDGR (GRIZZLY 550 4WD) 1NP6 2013 ELECTRICAL 1
- Yamaha YFM5FGDL (GRIZZLY 550 4WD) 1NP60 2013 ELECTRICAL 1
- Yamaha YFM5FGHD (GRIZZLY 550 4WD HUNTER) 1NP9 2013 ELECTRICAL 1
- Yamaha YFM5FGPDGR (GRIZZLY 550 EPS 4WD) 1HSC 2013 ELECTRICAL 1
- Yamaha YFM5FGPDL (GRIZZLY 550 EPS 4WD) 1HSG 2013 ELECTRICAL 1
- Yamaha YFM5FGPDR (GRIZZLY 550 EPS 4WD) 1HSC1 2013 ELECTRICAL 1
- Yamaha YFM5FGPHD (GRIZZLY 550 EPS 4WD HUNTER) 1HSK 2013 ELECTRICAL 1
- Yamaha YFM5FGBGR (GRIZZLY 550 4WD) 1NP1 2012 ELECTRICAL 1
- Yamaha YFM5FGBL (GRIZZLY 550 4WD) 1NP10 2012 ELECTRICAL 1
- Yamaha YFM5FGHB (GRIZZLY 550 4WD HUNTER) 1NP4 2012 ELECTRICAL 1
- Yamaha YFM5FGPBGR (GRIZLY 550 EPS 4WD) 1HS1 2012 ELECTRICAL 1
- Yamaha YFM5FGPBL (GRIZZLY 550 EPS 4WD) 1HS8 2012 ELECTRICAL 1
- Yamaha YFM5FGPHB (GRIZZLY 550 EPS 4WD HUNTER) 1HS5 2012 ELECTRICAL 1
Part Details
| Brand | Yamaha |
| Sku | 1HS-8591A-00-00 |
| Name | ENGINE CONTROL UNI |
Free Shipping on Orders Over $99
Free ground shipping on US orders over $99, with tracking. Delivery time is shown before you pay, so you know when it arrives.
Support From People Who Ride
Not sure about size or fit? Ask us before you order. Our team rides too and will help you pick what suits your bike.
Genuine OEM & Trusted Brands
OEM parts for Honda, Yamaha, Kawasaki, Can-Am, Polaris and more, plus gear from makers riders trust. No no-name imports.
Parts That Fit Your Machine
Enter your machine’s type, year, make and model, and we’ll show only the parts and gear that fit it.