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8550
DELCOAlternatorIR/IF12V145ACW Rotation
Fits Chevrolet, GMC, Cadillac, Freightliner and Hummer · 4.3L–6.2L engines
10 interchanges90 applications28 components
Or call (405) 225-7220 · M–F 8–5 CT
Note:This Unit Has a Similar Mounting to the 8302. Also see GM# 20881337. | This is a 145A Alternator with DR37 cast into DEH. Stator OD is 137mm. 2Pin F-L VR with 7755 stamped on OE VR. Pulley OD is 59mm at top of belt groove.089 is stamped into the face of the 6 groove pulley. Also see 240-6428, may be the same unit.
Specifications
Full technical detail
- Type
- Alternator
- Manufacturer
- DELCO
- Design
- IR/IF
- Voltage
- 12V
- Amperage
- 145A
- Rotation
- CW
- MFR Series
- DR37
- Pulley Design
- S6
- Plug Code
- 346
- Plug Clock
- 12:00
OEM part numbers
Genuine OEM & engine-manufacturer numbers this alternator replaces
Vehicle applications
Fits 90 configurations
Showing 40 of 90 configurations
Domestic(40)
| Make | Model | Engine | Years |
|---|---|---|---|
| Cadillac Truck(Truck) | Escalade | V8 6.2L 6162cc 376cid | 2011–2014 |
| Cadillac Truck(Truck) | Escalade | V8 6.2L 6162cc 376cid | 2009–2010 |
| Cadillac Truck(Truck) | Escalade | V8 6.0L 5967cc 364cid | 2009–2009 |
| Cadillac Truck(Truck) | Escalade ESV | V8 6.2L 6162cc 376cid | 2011–2014 |
| Cadillac Truck(Truck) | Escalade EXT | V8 6.2L 6162cc 376cid | 2011–2013 |
| Chevrolet Medium/Heavy Truck(Medium/Heavy Truck) | Express 4500 | V8 6.0L 5967cc 364cid General Motors L96 | 2016–2016 |
| Chevrolet Medium/Heavy Truck(Medium/Heavy Truck) | Express 4500 | V8 6.0L 5967cc 364cid General Motors LC8 | 2016–2016 |
| Chevrolet Medium/Heavy Truck(Medium/Heavy Truck) | Express 4500 | V8 6.0L 5967cc 364cid General Motors L96 | 2012–2014 |
| Chevrolet Medium/Heavy Truck(Medium/Heavy Truck) | Express 4500 | V8 6.0L 5967cc 364cid General Motors LC8 | 2012–2014 |
| Chevrolet Medium/Heavy Truck(Medium/Heavy Truck) | Express 4500 | V8 6.0L 5967cc 364cid | 2011–2011 |
| Chevrolet Medium/Heavy Truck(Medium/Heavy Truck) | Express 4500 | V8 6.0L 5967cc 364cid General Motors L96 | 2010–2010 |
| Chevrolet Medium/Heavy Truck(Medium/Heavy Truck) | LCF 4500 | V8 6.0L 5967cc 364cid General Motors LC8 | 2016–2016 |
| Chevrolet Medium/Heavy Truck(Medium/Heavy Truck) | LCF 4500 | V8 6.0L 5967cc 364cid General Motors L96 | 2016–2016 |
| Chevrolet Truck(Truck) | Avalanche | V8 5.3L 5328cc 325cid | 2011–2013 |
| Chevrolet Truck(Truck) | Avalanche | V8 6.0L 5967cc 364cid | 2009–2009 |
| Chevrolet Truck(Truck) | Colorado | V8 5.3L 5328cc 325cid | 2011–2012 |
| Chevrolet Truck(Truck) | Colorado | V8 5.3L 5328cc 325cid | 2009–2010 |
| Chevrolet Truck(Truck) | LCF 3500 | V8 6.0L 5967cc 364cid | 2016–2016 |
| Chevrolet Truck(Truck) | Silverado 1500 | V6 4.3L 262cid VIN X | 2011–2013 |
| Chevrolet Truck(Truck) | Silverado 1500 | V8 4.8L 294cid | 2012–2013 |
| Chevrolet Truck(Truck) | Silverado 1500 | V8 5.3L 5328cc 325cid | 2012–2013 |
| Chevrolet Truck(Truck) | Silverado 1500 | V8 6.2L 6162cc 376cid VIN 2 | 2013–2013 |
| Chevrolet Truck(Truck) | Silverado 1500 | V8 5.3L 5328cc 325cid VIN 3 | 2011–2011 |
| Chevrolet Truck(Truck) | Silverado 1500 | V8 5.3L 5328cc 325cid VIN | 2011–2011 |
| Chevrolet Truck(Truck) | Silverado 2500 HD | V8 6.0L 5967cc 364cid | 2013–2014 |
| Chevrolet Truck(Truck) | Silverado 2500 HD | V8 6.0L 5967cc 364cid | 2007–2009 |
| Chevrolet Truck(Truck) | Silverado 3500 HD | V8 6.0L 5967cc 364cid | 2013–2014 |
| Chevrolet Truck(Truck) | Suburban 1500 | V8 5.3L 5328cc 325cid | 2010–2014 |
| Chevrolet Truck(Truck) | Suburban 1500 | V8 6.0L 5967cc 364cid | 2009–2009 |
| Chevrolet Truck(Truck) | Suburban 1500 | V8 5.3L 5328cc 325cid | 2007–2007 |
| Chevrolet Truck(Truck) | Suburban 2500 | V8 6.0L 5967cc 364cid | 2011–2013 |
| Chevrolet Truck(Truck) | Suburban 2500 | V8 6.0L 5967cc 364cid | 2009–2010 |
| Chevrolet Truck(Truck) | Tahoe | V8 5.3L 5328cc 325cid | 2012–2014 |
| Chevrolet Truck(Truck) | Tahoe | V8 5.3L 5328cc 325cid VIN 3 | 2011–2011 |
| Chevrolet Truck(Truck) | Tahoe | V8 5.3L 5328cc 325cid VIN | 2011–2011 |
| Chevrolet Truck(Truck) | Tahoe | V8 6.2L 6162cc 376cid | 2009–2009 |
| Chevrolet Truck(Truck) | Tahoe | V8 6.0L 5967cc 364cid | 2009–2009 |
| Chevrolet Truck(Truck) | Tahoe | V8 4.8L 294cid | 2009–2009 |
| Chevrolet Truck(Truck) | Tahoe | V8 6.2L 6162cc 376cid VIN 3 | 2008–2008 |
| Chevrolet Truck(Truck) | Tahoe | V8 5.3L 5328cc 325cid VIN 3 | 2007–2007 |
Component breakdown
Replacement parts that go inside this unit
| Component | Part numbers |
|---|---|
| Bearing, Ball | 5-3500 5-4700 |
| Brush Holder Assy, Alt | 7440-4618 |
| Brush Holder, Alt | 7440-4618A |
| Brush, Alt | 7340-219 7340-220 |
| Cover, Alt | 8440-4047 |
| Diode, Pos | 7700-242 |
| Frame Assy, Rectifier, Alt | 7740-1162 |
| Frame Assy, Rectifier, Alt | 7740-1162 |
| Frame, DE, Alt | 7640-4032 |
| Nut | 9500-1300 9500-1460 |
| Plug Code | 9801-346 |
| Plug Code | 9801-346 |
| Pulley | 7940-1290 |
| Pulley | 7940-1279 |
| Rectifier, Pos | 7740-1160 |
| Regulator, Alt | 8040-6306 |
| Regulator, Alt | 8040-6306 |
| Retainer, Alt | 8590-906 |
| Rotor | 7040-345 |
| Screw | 9640-4042 9640-4043 |
| Slip Ring, Rotor | 7140-440 |
| Spacer, Alt | 9740-4119 9940-0008 |
| Spring, Brush, Alt | 9200-1004 |
| Stator | 7240-6199 |
| Stator | 7240-6199 |
| Test Lead, Alt | 9800-RVC |
| Thru Bolt | 9640-4200 |
| Washer, Lock | 9740-1002 |