Aluminum Black Powdercoat

Bilit Aluminum Clear Powdercoat
Bilit Aluminum Clear Powdercoat

G.M. Late Model Performance Serpentine Pulley Systems for GM Trucks

Our Aluminum sets are CNC machined from 6061-T6 billet for extra strength and wear. Hand polished and finished with “No Polishing” clear Powdercoat.

 

Performance Series Increases horsepower by reducing accessory drag. 12.5 h.p. at rear wheels typical. Eliminates belt throwing. Designed for normal street driving.

Power & Amp Series Increases horsepower by reducing accessory drag. 11 H.P. at rear wheel. Design for vehicle with high amperage needs. EXCELLENT for towing and heavy stop and go driving.

 

1988-2003 with External Alternator Fan 4.3-305-350

Power and Amp Series (Recommended for Automatic Transmission Vehicles)

Set#

Year

Material

Crank Pulley

Water Pump Pulley

Alt. Pulley

Alternator Pulley w/Cover

4455

1988-03

2 pc. steel/aluminum

6 rib black aluminum #4301

6 rib black steel #110

4465

1988-95

3 pc. aluminum clear

6 rib#4311

Non rib #4312

6 rib #112

4450

1996-97

3 pc. aluminum clear

6 rib#4311

Non rib #4314

6 rib #112

Performance Series

4300

1988-94

2 pc. aluminum/steel

6 rib#4301 black aluminum

6 rib #120 black steel

4310

1988-95

3 pc. aluminum clear

6 rib#4311

Non rib #4312

6 rib #208

1995-2003 Trucks with Internal Alternator Fan 4.3-305-350

Power and Amp Series (Recommended for Automatic Transmission Vehicles)

Set#

Year

Material

Crank Pulley

Water Pump Pulley

Alt. Pulley

Alternator Pulley w/Cover

4460

1994-03

2 pc. steel/aluminum

6 rib black aluminum #4301

6 rib black steel #124

4470

1995

3 pc. aluminum clear

6 rib #4311

Non rib #4312

6 rib #125

4490

1996-97

3 pc. aluminum clear

6 rib #4311

Non rib #4314

6 rib #125

1988-2000 454 C.I. Crank pulley is retained by 3 bolts only

Power and Amp Series (Recommended for Automatic Transmission Vehicles)

Set#

Year

Material

Crank Pulley

Water Pump Pulley

Alt. Pulley

Alternator Pulley w/Cover

4475

1988-02

2 pc. steel/aluminum

6 rib black aluminum #4351

6 rib black steel #110

4480

1988-97

3 pc. aluminum clear

6 rib #4361

Non rib #4012

6 rib #112

Performance Series

4350

1988-95

2 pc. steel/aluminum

6 rib black aluminum #4351

6 rib black steel #120

4360

1988-97

3 pc. aluminum clear

6 rib #4361

Non rib #4012

6 rib #208

1994-2000 454 C.I. Dullies and Surburbans

Crank pulley is retained by 4 bolts, 3 pulley bolts and 1 dampener bolt

Power and Amp Series (Recommended for Automatic Transmission Vehicles)

Set#

Material

Crank Pulley

Water Pump Pulley

Alt. Pulley

4495

2 pc. Black steel/aluminum

6 rib black aluminum #4371

6 rib black steel #110

GM Truck Show Covers - Accessory Photos on Page 49-50

Matching Billet Aluminum Accessories (1988-95 only)

Power Steering Pulley

Water Pump Cap

A/C Cover

Idler Pulley

Tensioner Pulley

Alternator Fan

Part No.

610

330

376

725

710

221

Matching 454 C.I. Billet Aluminum Accessories (1988-95 only)

Power Steering Pulley

Water Pump Cap

A/C Cover

Alternator Fan

Part No.

610

330

376

221

 

Detailed Information of Set Components and Size
7005 Set Drives: Water Pump, Alternator
Set Includes: Part#  
 
7006
1-Groove Crank Pulley 5 1/2”
 
6052
1-Groove Water Pump Pulley 6 1/4”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
7015 Set Drives: Water Pump, Alternator, P.S.
 
7021
2-Groove Crank Pulley 5 1/2”
 
6052
1-Groove Water Pump Pulley 6 1/4”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
Optional P.S. Pulley ........#513 Keyed ........#531 Press Fit
7020* Set Drives: Water Pump, Alternator, P.S. or A/C
 
7021
2-Groove Crank Pulley 5 1/2”
 
6092
2-Groove Water Pump Pulley 6 1/4 ”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
Optional P.S. Pulley ........#513 Keyed ........#531 Press Fit
7040* Set Drives: Water Pump, Alternator, P.S., A/C
 
7041
3-Groove Crank Pulley 5 1/2”
 
6092
2-Groove Water Pump Pulley 6 1/4 ”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
Optional P.S. Pulley ........#521 Keyed ........#520 Press Fit
7050 Set Drives: Water Pump, Alternator, P.S., A/C
 
7041
3-Groove Crank Pulley 5 1/2”
 
6052
1-Groove Water Pump Pulley 6 1/4 ”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
Optional P.S. Pulley ........#521 Keyed ........#520 Press Fit
7105 Set Drives: Water Pump, Alternator
 
7106
1-Groove Crank Pulley 7”
 
6152
1-Groove Water Pump Pulley 5 1/2”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
7115 Set Drives: Water Pump, Alternator, P.S.
 
7121
2-Groove Crank Pulley 7”
 
6152
1-Groove Water Pump Pulley 5 1/2”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
Optional P.S. Pulley ........#513 Keyed ........#531 Press Fit
7140* Set Drives: Water Pump, Alternator, P.S., A/C
 
7141
3-Groove Crank Pulley 7”
 
6092
2-Groove Water Pump Pulley 6 1/4 ”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
Optional P.S. Pulley ........#521 Keyed ........#520 Press Fit
7150 Set Drives: Water Pump, Alternator, P.S., A/C
 
7141
3-Groove Crank Pulley 7”
 
6152
1-Groove Water Pump Pulley 5 1/2”
 
137
1-Groove Alternator Pulley w/Cover 2 11/16”
Optional P.S. Pulley ........#521 Keyed ........#520 Press Fit
* Must use early 80’s or aftermarket water pump

 

Matching Alternator Power Steering A/C Units Etc. - See Accessories