Free shipping on orders over $100 - Details

Earls LT Side Mount Oil Cooler Adapter

LT Side Mount Oil Cooler Adapter W/180 degree thermostat

Part # 1129ERL Be the first to write a review
Estimated shipping date: 01/31/2022
Notify Me When Available
Free Shipping
Your Price
Suggested Retail
Add to Wish List
Create a new list
Starting at $23 a month with Learn More
Earl's billet side mount oil cooler adapters are the slick way to add an oil cooler to your GM LS or Gen-V LT engine. The slim design of these adapters clear most headers and other components and feature -10 AN male connections. These adapters are black anodized and use O-Ring seals for a leak free installation. The Gen-V LT adapter fits the Corvette, Truck, and Holley 302-20, 302-22 oil pans only. The Gen-V LT Truck engines require an extra spacer plate (1127ERL) between the oil cooler adapter and the oil pan to provide clearance from the adapter to the engine block. Choose from a standard adapter or one with a thermostat (180 degree is standard & optional 210 thermostat is available separately).


  • Billet Aluminum w/ Black Anodized Finish
  • Includes 0-Ring Seal & Hardware
  • (2) 1/8” NPT Accessory Ports
  • -10 AN Male Connections
  • Available w/ 180 Degree Thermostat
  • Add an Earl’s Oil Cooler and AN Plumbing to Complete the Installation
  • Fits: Factory Corvette and Truck Oil Pans
  • Fits: Holley Oil Pans 302-20 & 302-22

About Earls

Earl's Performance Plumbing brought aviation fluid transfer technology to the automotive performance market over five decades ago. With the most extensive line of plumbing products available, you can count on Earl's from start to finish.

Adapter AN Size ( A )10 AN MALE
Adapter AN Size ( B )10 AN MALE
Adapter NPT Size ( C )1/8 NPT FEMALE
Brand Earls
Emission Code5
FinishAnodized Black
MaterialBillet Aluminum
Product TypeOil Cooler
Part Number1129ERL

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.

Fits Gen-V LT Engine in Corvette and Truck only (does not fit Camaro). Also Fits Holley Oil Pans 302-20 & 302-22. LT Truck engines require oil cooler adapter 1126ERL or 1129ERL and spacer 1127ERL - for clearance to the engine block. Camaro Engines Can Use This Adapter only when using Holley Oil Pans 302-20 or 302-22.

    Your Review

    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.