FWGC 7861-11R-6G Alternator
| Brand | FWGC 7861-11R-6G |
|---|---|
| Voltage | 12 |
| Fan Type | External |
| Rotation Direction | Clockwise (right) |
| Pulley Included | Yes |
| Family | Delco |
| Pulley Groove Quantity | 6 |
| Pulley Belt Type | Serpentine |
| Regulator Type | Internal |
| Decoupled Or Clutch Pulley | No |
| Amperage Rating | 105 |
| Fits | Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac · 136 vehicles |
105-amp output. Provides the charging capacity needed for higher electrical demand.
Internal regulator. Integrated voltage control simplifies the alternator design.
Serpentine pulley. 6-groove pulley setup matches common belt-drive layouts.
Cross-references BBB Industries 7861-11, 7921-11 and 1101110 for the same application. See all 30.
Alternator Overview
This alternator is built for 12-volt charging systems and delivers 105 amps of output with an internal regulator. It uses a 6-groove serpentine pulley and clockwise rotation, making it a direct match for many GM applications that use the Delco family design.
Key Features
- 12-volt alternator with 105-amp output
- Internal regulator for integrated voltage control
- External fan design for cooling
- 6-groove pulley for serpentine belt systems
- Clockwise rotation, right-hand rotation pattern
- Pulley included for installation readiness
- Delco family configuration
Fitment Details
Compatible with a wide range of Chevrolet, GMC, Buick, Cadillac, Oldsmobile, and Pontiac applications from 1987-1993. Fits 1991-1993 Chevrolet Caprice, N/A; Fits 1991-1992 Buick Commercial Chassis, N/A; Fits 1991-1992 Buick Roadmaster, N/A; Fits 1991-1992 Cadillac Brougham, N/A; Fits 1991-1992 Chevrolet C1500, N/A; Fits 1991-1992 Chevrolet C2500, N/A; Fits 1991-1992 Chevrolet C3500, N/A; Fits 1991-1992 Chevrolet C3500HD, N/A; Fits 1990-1992 Chevrolet Camaro, N/A; Fits 1991-1992 Chevrolet K1500, N/A; Fits 1991-1992 Chevrolet K2500, N/A; Fits 1991-1992 Chevrolet K3500, N/A; Fits 1991-1992 GMC C1500, N/A; Fits 1991-1992 GMC C2500, N/A; Fits 1991-1992 GMC C3500, N/A; Fits 1991-1992 GMC C3500HD, N/A; Fits 1991-1992 GMC K1500, N/A; Fits 1991-1992 GMC K2500, N/A; Fits 1991-1992 GMC K3500, N/A; Fits 1991-1992 Oldsmobile Custom Cruiser, N/A; Fits 1990-1992 Pontiac Firebird, N/A; Fits 1991 Chevrolet G10, N/A; Fits 1991 Chevrolet G20, N/A; Fits 1991 Chevrolet G30, N/A; Fits 1991 GMC G1500, N/A; Fits 1991 GMC G2500, N/A; Fits 1991 GMC G3500, N/A; Fits 1988-1990 Chevrolet C1500, N/A; Fits 1989-1990 Chevrolet C2500, N/A; Fits 1988-1990 Chevrolet C3500, N/A; Fits 1988-1990 Chevrolet G10, N/A; Fits 1988-1990 Chevrolet G20, N/A; Fits 1988-1990 Chevrolet G30, N/A; Fits 1988-1990 Chevrolet K1500, N/A; Fits 1988-1990 Chevrolet K2500, N/A; Fits 1988-1990 Chevrolet K3500, N/A; Fits 1987-1990 Chevrolet P40, N/A; Fits 1988-1990 GMC C1500, N/A; Fits 1989-1990 GMC C2500, N/A; Fits 1988-1990 GMC C3500, N/A; Fits 1988-1990 GMC G1500, N/A; Fits 1988-1990 GMC G2500, N/A; Fits 1988-1990 GMC G3500, N/A; Fits 1988-1990 GMC K1500, N/A; Fits 1988-1990 GMC K2500, N/A; Fits 1988-1990 GMC K3500, N/A; Fits 1987-1990 GMC P4500, N/A; Fits 1987-1989 Chevrolet Astro, N/A; Fits 1989 Chevrolet C35, N/A; Fits 1987-1989 GMC Safari, N/A; Fits 1988 Chevrolet C2500, N/A; Fits 1988 GMC C2500, N/A; Fits 1987 Chevrolet Blazer, N/A; Fits 1987 Chevrolet G10, N/A; Fits 1987 Chevrolet G20, N/A; Fits 1987 Chevrolet G30, N/A; Fits 1987 Chevrolet R10, N/A; Fits 1987 Chevrolet R10 Suburban, N/A; Fits 1987 Chevrolet R20, N/A; Fits 1987 Chevrolet V10, N/A; Fits 1987 GMC G1500, N/A; Fits 1987 GMC G2500, N/A; Fits 1987 GMC G3500, N/A; Fits 1987 GMC Jimmy, N/A; Fits 1987 GMC R1500, N/A; Fits 1987 GMC R1500 Suburban, N/A; Fits 1987 GMC R2500, N/A; Fits 1987 GMC V1500, N/A.
Common Replacement Uses
- Restores charging output when the battery is not staying charged
- Addresses dim lights or electrical instability under load
- Replaces a worn unit with pulley or regulator wear
- Supports vehicles that need a 105-amp Delco-style alternator
- Helps correct charging issues on serpentine-belt applications
Installation Notes
Verify pulley groove count, belt type, rotation direction, and amperage before installation. This unit uses an internal regulator and a clockwise rotation pattern, so matching the original electrical and belt-drive configuration is important for proper operation. Cross-reference part numbers include BBB Industries 7861-11 and 7921-11 for the same application.
Quality Assurance
Power Select alternators are engineered to deliver the amperage needed for modern electrical loads. Proprietary components and manufacturing processes are used to support long service life and consistent performance.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 1993 | Chevrolet | Caprice | 5.7L | V8 | 100 Amp, 6-Groove Pulley |
| 1992 | Buick | Commercial Chassis | — | — | Delco Unit, 100 Amp, 6-Groove Pulley |
| 1992 | Buick | Roadmaster | — | — | 100 Amp, 6-Groove Pulley |
| 1992 | Cadillac | Brougham | 5.7L | V8 | 100 Amp, 6-Groove Pulley |
| 1992 | Chevrolet | C1500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1992 | Chevrolet | C2500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1992 | Chevrolet | C3500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1992 | Chevrolet | C3500HD | 6.2L | V8 | General Motors |
| 1992 | Chevrolet | Camaro | 5.7L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1992 | Chevrolet | Caprice | 5.7L | V8 | 100 Amp, 6-Groove Pulley |
| 1992 | Chevrolet | K1500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1992 | Chevrolet | K2500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1992 | Chevrolet | K3500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1992 | GMC | C1500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1992 | GMC | C2500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1992 | GMC | C3500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1992 | GMC | C3500HD | 6.2L | V8 | General Motors |
| 1992 | GMC | K1500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1992 | GMC | K2500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1992 | GMC | K3500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1992 | Oldsmobile | Custom Cruiser | 5.7L | V8 | 100 Amp, 6-Groove Pulley |
| 1992 | Pontiac | Firebird | 5.7L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | Buick | Commercial Chassis | — | — | Delco Unit, 100 Amp, 6-Groove Pulley |
| 1991 | Buick | Roadmaster | — | — | 100 Amp, 6-Groove Pulley |
| 1991 | Cadillac | Brougham | 5.7L | V8 | 100 Amp, 6-Groove Pulley |
| 1991 | Chevrolet | C1500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | Chevrolet | C2500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | Chevrolet | C3500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | Chevrolet | C3500HD | 6.2L | V8 | General Motors |
| 1991 | Chevrolet | Camaro | 5.7L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | Chevrolet | Caprice | 5.7L | V8 | 100 Amp, 6-Groove Pulley |
| 1991 | Chevrolet | G10 | 4.3L | V6 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | Chevrolet | G20 | 4.3L | V6 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | Chevrolet | G30 | 4.3L | V6 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | Chevrolet | K1500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | Chevrolet | K2500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | Chevrolet | K3500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | GMC | C1500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | GMC | C2500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | GMC | C3500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | GMC | C3500HD | 6.2L | V8 | General Motors |
| 1991 | GMC | G1500 | 4.3L | V6 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | GMC | G2500 | 4.3L | V6 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | GMC | G3500 | 4.3L | V6 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | GMC | K1500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | GMC | K2500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | GMC | K3500 | 6.2L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1991 | Oldsmobile | Custom Cruiser | — | — | 100 Amp, 6-Groove Pulley |
| 1991 | Pontiac | Firebird | 5.7L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1990 | Chevrolet | C1500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1990 | Chevrolet | C2500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1990 | Chevrolet | C3500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1990 | Chevrolet | Camaro | 5.7L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1990 | Chevrolet | G10 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1990 | Chevrolet | G20 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1990 | Chevrolet | G30 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1990 | Chevrolet | K1500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1990 | Chevrolet | K2500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1990 | Chevrolet | K3500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1990 | Chevrolet | P40 | 4.3L | V6 | Delco CS130 IR/EF 12V 105A CW S6 |
| 1990 | GMC | C1500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1990 | GMC | C2500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1990 | GMC | C3500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1990 | GMC | G1500 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1990 | GMC | G2500 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1990 | GMC | G3500 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1990 | GMC | K1500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1990 | GMC | K2500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1990 | GMC | K3500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1990 | GMC | P4500 | 4.3L | V6 | — |
| 1990 | Pontiac | Firebird | 5.7L | V8 | Delco 105 Amp, Also Replaces 100 Amp |
| 1989 | Chevrolet | Astro | 4.3L | V6 | w/AC, 100 Amp, 6-Groove Pulley |
| 1989 | Chevrolet | C1500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1989 | Chevrolet | C2500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1989 | Chevrolet | C35 | — | — | Mexico |
| 1989 | Chevrolet | C3500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1989 | Chevrolet | G10 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1989 | Chevrolet | G20 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1989 | Chevrolet | G30 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1989 | Chevrolet | K1500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1989 | Chevrolet | K2500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1989 | Chevrolet | K3500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1989 | Chevrolet | P40 | 4.3L | V6 | Delco CS130 IR/EF 12V 105A CW S6 |
| 1989 | GMC | C1500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1989 | GMC | C2500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1989 | GMC | C3500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1989 | GMC | G1500 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1989 | GMC | G2500 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1989 | GMC | G3500 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1989 | GMC | K1500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1989 | GMC | K2500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1989 | GMC | K3500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1989 | GMC | P4500 | 4.3L | V6 | — |
| 1989 | GMC | Safari | 4.3L | V6 | w/AC, 100 Amp, 6-Groove Pulley |
| 1988 | Chevrolet | Astro | 4.3L | V6 | w/AC, 100 Amp, 6-Groove Pulley |
| 1988 | Chevrolet | C1500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1988 | Chevrolet | C2500 | 6.2L | V8 | wo/AC 85 Amp or w/AC 100 Amp, Supplied with 105 Amp |
| 1988 | Chevrolet | C3500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1988 | Chevrolet | G10 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1988 | Chevrolet | G20 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1988 | Chevrolet | G30 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1988 | Chevrolet | K1500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1988 | Chevrolet | K2500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1988 | Chevrolet | K3500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1988 | Chevrolet | P40 | 4.3L | V6 | Delco CS130 IR/EF 12V 105A CW S6 |
| 1988 | GMC | C1500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1988 | GMC | C2500 | 6.2L | V8 | wo/AC 85 Amp or w/AC 100 Amp, Supplied with 105 Amp |
| 1988 | GMC | C3500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1988 | GMC | G1500 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1988 | GMC | G2500 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1988 | GMC | G3500 | 4.3L | V6 | 100 Amp, 6-Groove Pulley |
| 1988 | GMC | K1500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1988 | GMC | K2500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1988 | GMC | K3500 | 6.2L | V8 | w/AC, Std, 100 Amp, wo/AC |
| 1988 | GMC | P4500 | 4.3L | V6 | — |
| 1988 | GMC | Safari | 4.3L | V6 | w/AC, 100 Amp, 6-Groove Pulley |
| 1987 | Chevrolet | Astro | 4.3L | V6 | w/AC, 100 Amp, 6-Groove Pulley |
| 1987 | Chevrolet | Blazer | 5.0L | V8 | 100 Amp, 6-Groove Pulley |
| 1987 | Chevrolet | G10 | 4.3L | V6 | w/4-Pin Alt Plug, 100 Amp, 6-Groove Pulley |
| 1987 | Chevrolet | G20 | 4.3L | V6 | w/4-Pin Alt Plug, 100 Amp, 6-Groove Pulley |
| 1987 | Chevrolet | G30 | 4.3L | V6 | w/4-Pin Alt Plug, 100 Amp, 6-Groove Pulley |
| 1987 | Chevrolet | P40 | 4.3L | V6 | Delco CS130 IR/EF 12V 105A CW S6 |
| 1987 | Chevrolet | R10 | 4.3L | V6 | w/4-Pin Alt Plug, 6-Groove Pulley, 100 Amp |
| 1987 | Chevrolet | R10 Suburban | 5.0L | V8 | w/4-Pin Alt Plug, 6-Groove Pulley, 100 Amp |
| 1987 | Chevrolet | R20 | 4.3L | V6 | w/4-Pin Alt Plug, 6-Groove Pulley, 100 Amp |
| 1987 | Chevrolet | V10 | 4.3L | V6 | w/4-Pin Alt Plug, 6-Groove Pulley, 100 Amp |
| 1987 | GMC | G1500 | 4.3L | V6 | w/4-Pin Alt Plug, Opt, 100 Amp, 6-Groove Pulley |
| 1987 | GMC | G2500 | 4.3L | V6 | w/4-Pin Alt Plug, Opt, 100 Amp, 6-Groove Pulley |
| 1987 | GMC | G3500 | 4.3L | V6 | w/4-Pin Alt Plug, Opt, 100 Amp, 6-Groove Pulley |
| 1987 | GMC | Jimmy | 5.0L | V8 | w/4-Pin Alt Plug, Opt, 100 Amp |
| 1987 | GMC | P4500 | 4.3L | V6 | — |
| 1987 | GMC | R1500 | 4.3L | V6 | w/4-Pin Alt Plug, 6-Groove Pulley, 100 Amp |
| 1987 | GMC | R1500 Suburban | 5.0L | V8 | w/4-Pin Alt Plug, 6-Groove Pulley, 100 Amp |
| 1987 | GMC | R2500 | 4.3L | V6 | w/4-Pin Alt Plug, 6-Groove Pulley, 100 Amp |
| 1987 | GMC | Safari | 4.3L | V6 | w/AC, 100 Amp, 6-Groove Pulley |
| 1987 | GMC | V1500 | 4.3L | V6 | w/4-Pin Alt Plug, 6-Groove Pulley, 100 Amp |
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