Item #
21949
BRAND: Holley
Holley LS/LT Complete Accessory Drive Kit 20-137
Includes SD508 A/C Compressor, Alternator, P/S Pump, Tensioner, Belt, & Pulleys
Includes SD508 A/C Compressor, Alternator, P/S Pump, Tensioner, Belt, & Pulleys
Includes SD508 A/C Compressor, Alternator, P/S Pump, Tensioner, Belt, & Pulleys
Manufacturer Warranty Included
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Product Overview:
Description
Now available from Holley are complete kits that have everything needed for the application including the belt. Included are accessories, pulleys, tensioner, and belt that are manufactured by OE part suppliers many of which are on production cars today.
Replacement hardware kit is 97-171
Features:
- 197-301 - ALTERNATOR, 130 AMP, LARGE CASE
- INCLUDES THE FOLLOWING ITEMS
- Ideal for crate engines, take out motors and engine builders
- OEM spec flanged head hardware included to match your factory LS engine hardware
- OEM quality natural finish die castings for clean looks and durability. Can be polished, coated, painted or plated.
- Accessories, tensioner, and pulleys are manufactured by OEM suppliers many of which are on production vehicles today.
- Simple, dedicated installation kits allow easy fitment to Corvette, F-Body or Truck drive offsets
- Universal brackets fit virtually all common LS engines regardless of water pump and harmonic balancer offsets reducing cost and complexity compared to competitive products
- The most cost effective LS/LT bracket solution on the market!
- KIT Contains:
- 198-100 - P/S PUMP, CORVETTE ALUMINUM
- 199-101 - AC SD508 SANDEN COMPRESSOR, R-134a
- 70R155 - BELT, 6V SERPENTINE
- 20-132 - LS A/C DRV BRACKET KIT (WORKS W/SANDEN AC COMP)
- 97-152 - PULLEY, P/S PUMP
- 97-151 - TENSIONER ASSEMBLY
- 197-400 - HARNESS PIGTAIL, ALTERNATOR, AD STYLE
- 97-150 - IDLER PULLEY, SMOOTH, 2.75" DIAMETER
Specifications
Brand: Holley
Emission Code: 5
Engine: GM LS
Finish: Cast
Material: Cast Aluminum
Product Type: Accessory Drive Kits
Part Number: 20-137
EMMISIONS
This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Shipping & Handling
In the Box
Guides & Accessories
Instructions
***NOTE: This bracket REQUIRES an installation kit for assembly (Part 21–1, 21–2, OR 21–3, see instruction sheet below for the correct installation kit for your application). ***For installation onto an LT Series engine, additional parts are required: *21-5 LT Installation Kit for GM Gen V LT Accessory Drive *22-100 LS Water Pump with forward facing outlet. *717-15 Throttle Body Angle Adapter - for GM LS and LT Intakes ***NOTE for LT Applications: If installing on LT application refer to 21-5 LT installation kit instructions before proceeding. ***For all LS Engine Swaps-Please refer to your specific body style engine mount kits for additional modification and fitment requirements.
Aerosol Details
Consumables
N/A
Spare Parts
N/A
Reviews
Questions & Answers

Holley LS/LT Complete Accessory Drive Kit 20-137
$1,811.95
Out of stock