Holley Accessory Drive Kit 20-137
Holley Accessory Drive Kit 20-137 Holley Accessory Drive Kit 20-137 Holley Accessory Drive Kit 20-137 Holley Accessory Drive Kit 20-137 Holley Accessory Drive Kit 20-137 Holley Accessory Drive Kit 20-137

Holley Accessory Drive Kit 20-137

$2,092.99 ea
Condition: NEW
Availability:Backordered until 10/28/2021
Out of stock at HOLLEY PERFORMANCE PRODUCTS as of 10/20/2021
Supplier has not provided any fitment data for this product.
Shipping Note:Oversize 1

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Muscle Cars & Classics always recommends professional installation of our products. Buyer assumes risk of damage caused by improper installation.

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.
  • Ideal For Crate Engines Take Out Motors And Engine Builders
  • OEM Flanged Head Hardware Incl. To Match Your Factory LS Hardware
  • Brackets Fit All Common LS Engines Reducing Cost/Complexity
  • The Most Cost Effective LS Bracket Solution On The Market
Holley Performance Emission Code 5: 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
Installation Notes:
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.

About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!


Download Name File Size


A/C Compressor Included Yes
A/C Compressor Type SD508
Accessory Drive Style High Mount
Alternator Amperage 130
Alternator Included Yes
Application GM Gen V LT
Belt Included Yes
Choose Your Part Accessory Drive Kits
Damper Included No
Damper Style Factory Standard Middle or Long
Emission Code 5
Engine GM Small Block Gen III/IV (LS Based)
Engine Make/Size GM LS
Finish Cast
Material Cast Aluminum
Output 130 Amps
Part Type Accessory Drive Component Mount Set
Power Steering Hardline Included No
Power Steering Pulley Included Yes
Power Steering Pump Included Yes
Power Steering Reservoir Included No
Pulley Style Serpentine
Tensioner Included Yes
Thermostat Included No
Water Neck Included No
Water Pump Included No
Water Pump Pulley Included No

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