Image for illustration only; it does not show the actual part or its packaging.
Yamaha OEM Part 3B4-8591A-20-00 ENGINE CONTROL UNIT ASSY
- Product Code: 3B4-8591A-20-00
$1,102.77
- 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 Unit Assembly (part number 3B4-8591A-20-00) from the Electrical 1 diagram. It fits Yamaha Grizzly 700 Fi, 700 Fi, Grizzly 700 and Grizzly 700 Hunter built from 2009 to 2011.
Fits these models
- Grizzly 700 Fi: 2009–2010
- 700 Fi: 2010
- Grizzly 700: 2011
- Grizzly 700 Hunter: 2011
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
2011
2010
- YFM7FGHZ (GRIZZLY 700 FI 4WD HUNTER) 5C0G 2010
- YFM7FGPHZ (GRIZZLY 700 FI EPS 4WD HUNTER) 43PL 2010
- YFM7FGPSEZ (700 FI EPS 4WD SPECIAL EDITION) 43PS 2010
- YFM7FGPZGR (GRIZZLY 700 FI EPS 4WD) 43PG 2010
- YFM7FGPZL (GRIZZLY 700 FI EPS 4WD) 43PG0 2010
- YFM7FGZGR (GRIZZLY 700 FI 4WD) 5C0E 2010
- YFM7FGZL (GRIZZLY 700 FI 4WD) 5C0E1 2010
2009
- YFM7FGHY (GRIZZLY 700 FI 4WD HUNTER) 5C0C 2009
- YFM7FGPDUY (GRIZZLY 700 FI EPS DUCKS UNLIMITED) 43P8 2009
- YFM7FGPHY (GRIZZLY 700 FI EPS 4WD HUNTER) 43P5 2009
- YFM7FGPSEY (GRIZZLY 700 FI EPS SPECIAL EDITION) 43PA 2009
- YFM7FGPYB (GRIZZLY 700 FI EPS 4WD) 43P1 2009
- YFM7FGPYGR (GRIZZLY 700 FI EPS 4WD) 43P100 2009
- YFM7FGPYL (GRIZZLY 700 FI EPS 4WD) 43P10 2009
- YFM7FGYB (GRIZZLY 700 FI 4WD) 5C0A 2009
- YFM7FGYGR (GRIZZLY 700 FI 4WD) 5C0A0 2009
- YFM7FGYL (GRIZZLY 700 FI 4WD) 5C0A00 2009
- Yamaha YFM7FGAGR (GRIZZLY 700 4WD) 5C0J 2011 ELECTRICAL 1
- Yamaha YFM7FGAL (GRIZZLY 700 4WD) 5C0M 2011 ELECTRICAL 1
- Yamaha YFM7FGHA (GRIZZLY 700 HUNTER) 5C0L 2011 ELECTRICAL 1
- Yamaha YFM7FGPAGR (GRIZZLY 700 EPS 4WD) 1DT1 2011 ELECTRICAL 1
- Yamaha YFM7FGPAL (GRIZZLY 700 EPS 4WD) 1DT8 2011 ELECTRICAL 1
- Yamaha YFM7FGPHA (GRIZZLY 700 EPS 4WD HUNTER) 1DT5 2011 ELECTRICAL 1
- Yamaha YFM7FGPSPA (GRIZZLY 700 EPS 4WD SPECIAL) 1DTB 2011 ELECTRICAL 1
- Yamaha YFM7FGHZ (GRIZZLY 700 FI 4WD HUNTER) 5C0G 2010 ELECTRICAL 1
- Yamaha YFM7FGPHZ (GRIZZLY 700 FI EPS 4WD HUNTER) 43PL 2010 ELECTRICAL 1
- Yamaha YFM7FGPSEZ (700 FI EPS 4WD SPECIAL EDITION) 43PS 2010 ELECTRICAL 1
- Yamaha YFM7FGPZGR (GRIZZLY 700 FI EPS 4WD) 43PG 2010 ELECTRICAL 1
- Yamaha YFM7FGPZL (GRIZZLY 700 FI EPS 4WD) 43PG0 2010 ELECTRICAL 1
- Yamaha YFM7FGZGR (GRIZZLY 700 FI 4WD) 5C0E 2010 ELECTRICAL 1
- Yamaha YFM7FGZL (GRIZZLY 700 FI 4WD) 5C0E1 2010 ELECTRICAL 1
- Yamaha YFM7FGHY (GRIZZLY 700 FI 4WD HUNTER) 5C0C 2009 ELECTRICAL 1
- Yamaha YFM7FGPDUY (GRIZZLY 700 FI EPS DUCKS UNLIMITED) 43P8 2009 ELECTRICAL 1
- Yamaha YFM7FGPHY (GRIZZLY 700 FI EPS 4WD HUNTER) 43P5 2009 ELECTRICAL 1
- Yamaha YFM7FGPSEY (GRIZZLY 700 FI EPS SPECIAL EDITION) 43PA 2009 ELECTRICAL 1
- Yamaha YFM7FGPYB (GRIZZLY 700 FI EPS 4WD) 43P1 2009 ELECTRICAL 1
- Yamaha YFM7FGPYGR (GRIZZLY 700 FI EPS 4WD) 43P100 2009 ELECTRICAL 1
- Yamaha YFM7FGPYL (GRIZZLY 700 FI EPS 4WD) 43P10 2009 ELECTRICAL 1
- Yamaha YFM7FGYB (GRIZZLY 700 FI 4WD) 5C0A 2009 ELECTRICAL 1
- Yamaha YFM7FGYGR (GRIZZLY 700 FI 4WD) 5C0A0 2009 ELECTRICAL 1
- Yamaha YFM7FGYL (GRIZZLY 700 FI 4WD) 5C0A00 2009 ELECTRICAL 1
Part Details
| Brand | Yamaha |
| Sku | 3B4-8591A-20-00 |
| Name | ENGINE CONTROL UNIT ASSY |
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.