Built for GM charging-system applications, this 10SI style alternator combines 110 A charging output, a V-belt, 1-groove, 2.610 in. outside diameter pulley configuration, and a chrome finish for dependable electrical support in properly matched vehicles.

Charging Output & System Support
The 110 A amperage rating helps support electric fans, lighting, ignition components, fuel pumps, audio equipment, and additional electrical accessories. The 12 VDC rating keeps it aligned with common automotive charging-system requirements. The 10SI case family provides the charging-system layout used for compatible brackets, wiring, and mounting geometry. This makes it useful for street-driven builds, restorations, and upgraded accessory systems.

Pulley & Belt Alignment
The V-belt, 1-groove, 2.610 in. outside diameter pulley setup is intended to match the selected accessory drive arrangement. The first groove distance is listed at 1.970 in., helping confirm belt alignment before final assembly. The drive-end-to-rotor-shaft distance is 1.720 in., which should be reviewed with bracket spacing and pulley clearance. Verify belt type, pulley offset, and bracket position before installation.

Case Construction & Cooling
The aluminum case uses a chrome finish with a 17.060 in. case circumference to balance durability, serviceability, and underhood presentation. The external fan design helps support heat management during accessory load and engine-bay operation. External fan included: Yes.

Installation & System Matching
Mounting details include split mount configuration with 6.610 in. between mounting feet and mounting configuration code 15. Regulator type: Internal. External regulator included: No. One-wire capable: Yes. Plug type: 2-pin. Terminal quantity: 3. Ground type: Case ground. Rotation direction: Clockwise. Verify charge-wire size, connector style, pulley alignment, bracket spacing, and engine-bay clearance before installation.

COMPATIBLE WITH:
BUICK BIG BLOCK V8
• 6.6 L / 400 in3
• 7.0 L / 430 in3
• 7.5 L / 455 in3

BUICK SMALL BLOCK V8
• 5.7 L / 350 in3
• CADILLAC V8
• 6.0 L / 368 in3
• 7.0 L / 425 in3
• 7.7 L / 472 in3
• 8.2 L / 500 in3

CHEVROLET FLAT 6
• 2.7 L / 164 in3

CHEVROLET BIG BLOCK V8 GEN. II (MARK IV)
• 6.5 L / 396 in3
• 6.6 L / 402 in3
• 7.0 L / 427 in3
• 7.4 L / 454 in3

CHEVROLET SMALL BLOCK V8 GEN. I
• 4.3 L / 262 in3
• 4.4 L / 267 in3
• 4.9 L / 302 in3
• 5.0 L / 305 in3
• 5.0 L / 307 in3
• 5.3 L / 327 in3
• 5.7 L / 350 in3
• 6.6 L / 400 in3

DETROIT DIESEL INLINE 3
• 2.6 L / 159 in3

GM DIESEL V8
• 6.2 L / 379 in3

GM INLINE 4
• 1.4 L / 85 in3
• 1.5 L / 92 in3
• 1.6 L / 98 in3
• 1.8 L / 112 in3
• 1.9 L / 119 in3
• 2.0 L / 122 in3
• 2.3 L / 140 in3
• 2.5 L / 151 in3

GM INLINE 6
• 4.1 L / 250 in3
• 4.8 L / 292 in3

GM V6
• 2.8 L / 173 in3
• 3.0 L / 181 in3
• 3.2 L / 196 in3
• 3.8 L / 229 in3
• 3.8 L / 231 in3
• 4.1 L / 252 in3
• 4.3 L / 262 in3

ISUZU DIESEL INLINE 4
• 1.8 L / 111 in3
• 2.2 L / 134 in3

OLDSMOBILE DIESEL V8
• 4.3 L / 260 in3
• 5.7 L / 350 in3

OLDSMOBILE V8
• 4.3 L / 260 in3
• 5.0 L / 307 in3
• 5.7 L / 350 in3
• 6.6 L / 400 in3
• 6.6 L / 403 in3
• 7.5 L / 455 in3

PONTIAC V8
• 4.3 L / 265 in3
• 4.9 L / 301 in3
• 5.7 L / 350 in3
• 6.6 L / 400 in3
• 7.0 L / 428 in3
• 7.5 L / 455 in3
Commonly used in many GM vehicles from 1971-1986.

COMMON VEHICLE APPLICATIONS:
1971-1986 GM cars and light trucks; Chevrolet C/K Series; Chevrolet Camaro; Chevrolet Corvette; Chevrolet Chevelle; Chevrolet Monte Carlo; GMC C/K Series; Buick, Oldsmobile, Pontiac, and Cadillac applications using compatible 10SI mounting and wiring.

NOTES:
Verify 10SI case style, mounting ear spacing, pulley alignment, belt type, and one-wire or three-wire wiring requirements before ordering.

SPECIFICATIONS:
AC Service Tap: No
Amperage Rating: 110 A
Brushless: No
Case Circumference: 17.060 in.
Case Color: Silver
Case Material: Aluminum
Distance Between Mounting Feet: 6.610 in.
Drive End To Pulley 1st Groove Distance: 1.970 in.
Drive End To Rotor Shaft End Distance: 1.720 in.
External Fan Included: Yes
External Regulator Included: No
Family: 10SI
Fan Type: External
Finish: Chrome
Ground Type: Case ground
Mounting Configuration Code: 15
Mounting Type: Split Mount
One Wire Capable: Yes
Outside Pulley Diameter: 2.610 in.
Plug Clock Rear View Main Mounting Ear at 6 O Clock: 2 o'clock
Plug Type: 2-pin
Pulley Belt Type: V-belt
Pulley Groove Quantity: 1
Pulley Included: Yes
Regulator Type: Internal
Rotation Direction: Clockwise
Split Mounting Foot Overall Inner Spacing: 6.150 in.
Split Mounting Foot Overall Outside Spacing: 7.150 in.
Terminal Quantity: 3
Voltage: 12 VDC