Skip to content

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

NEED HELP CHOOSING THE RIGHT DIESEL PARTS? CALL OR TEXT SDS FOR EXPERT SUPPORT!

Home
Shop Info
Reviews
Shop Talk
Customer Builds

Southern Diesel Supply

Chevrolet
Ford
GMC
RAM
Apparel & Goods

Open search Open account page Saved build 0 Open cart

Home
Shop Info
Reviews
Shop Talk
Apparel & Goods
Customer Builds

6.7L (2019-2024)
6.7L (2010-2018)
6.7L (2007.5-2009)
5.9L (2004.5-2007)
5.9L (2003-2004)
5.9L (1998.5-2002)
5.9L (1989-1993)
5.9L (1994-1998)
3.0L (2018-2023)
3.0L (2014-2017)
6.7L (2025-present)

L5P (2020-2024)
L5P (2017-2019)
LML (2015-2016)
LML (2011-2014)
LMM (2007.5-2010)
LBZ (2006-2007)
LLY (2004.5-2005)
LB7 (2001-2004)

L5P (2020-2024)
L5P (2017-2019)
LML (2015-2016)
LML (2011-2014)
LMM (2007.5-2010)
LBZ (2006-2007)
LLY (2004.5-2005)
LB7 (2001-2004)

6.7L (2020-2024)
6.7L (2017-2019)
6.7L (2015-2016)
6.7L (2011-2014)
6.4L (2008-2010)
6.0L (2003-2007)
7.3L (1994-2020)

0

Your cart is empty

Continue shopping

RAM, (2025-present) 6.7L Cummins, Cooling System

Shop Cooling System by Category

Hot Shot's Secret 750,000 Mile Heavy Duty Ultra Long Life Red (1 Gal)

Hot Shot's Secret 150,000 Mile Heavy Duty Extended Life Yellow (1 Gal)

Hot Shot's Secret 150K Mile Extended Life Green Coolant (1 Gal)

Lucas Oil 10640 Super Coolant

Mishimoto MMRA-LC Liquid Chill Radiator Coolant Additive

WCFab WCF100848 OEM Placement Coolant Tank Kit (2025-2026 6.7L Cummins)

Mishimoto MMRT-RAM-19 Aluminum Degas Bottle (2019-2025 6.7L Cummins)

Coolant Tanks 2

Cummins 5627589 Genuine 190 Degree Coolant Thermostat (2007.5-2026 6.7L Cummins)

WCFab WCF100251 High Output Upper Coolant Pipe (2019-2026 6.7L Cummins)

Home
›
RAM, (2025-present) 6.7L Cummins, Cooling System

Filters

Sort by

Featured

Most relevant

Best selling

Alphabetically, A-Z

Alphabetically, Z-A

Price, low to high

Price, high to low

Date, old to new

Date, new to old

Sort by:

14 products

Cummins 5627589 Genuine 190 Degree Coolant Thermostat (2007.5-2026 6.7L Cummins) - Southern Diesel Supply

Cummins 5627589 Genuine 190 Degree Coolant Thermostat (2007.5-2026 6.7L Cummins) - Southern Diesel Supply

Cummins 5627589 Genuine 190 Degree Coolant Thermostat (2007.5-2026 6.7L Cummins)

Sale price$79.99

WCFab WCF100251 6.7L High Output Upper Coolant Pipe (2019 - 2024 Cummins) - Southern Diesel Supply

WCFab WCF100251 6.7L High Output Upper Coolant Pipe (2019 - 2024 Cummins) - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100251 High Output Upper Coolant Pipe (2019-2026 6.7L Cummins)

Sale price$165.99

WCFab WCF100848 OEM Placement Coolant Tank Kit (2025-2026 6.7L Cummins) - Southern Diesel Supply

WCFab WCF100848 OEM Placement Coolant Tank Kit (2025-2026 6.7L Cummins) - Southern Diesel Supply

Wehrli Custom Fabrication

WCFab WCF100848 OEM Placement Coolant Tank Kit (2025-2026 6.7L Cummins)

Sale price$549.99

Hot Shot's Secret 750,000 Mile Heavy Duty Ultra Long Life Red (1 Gal) - Southern Diesel Supply

Hot Shot's Secret 750,000 Mile Heavy Duty Ultra Long Life Red (1 Gal) - Southern Diesel Supply

Hot Shot's Secret

Hot Shot's Secret 750,000 Mile Heavy Duty Ultra Long Life Red (1 Gal)

Sale price$19.99

Hot Shot's Secret 150,000 Mile Heavy Duty Extended Life Yellow (1 Gal) - Southern Diesel Supply

Hot Shot's Secret 150,000 Mile Heavy Duty Extended Life Yellow (1 Gal) - Southern Diesel Supply

Hot Shot's Secret

Hot Shot's Secret 150,000 Mile Heavy Duty Extended Life Yellow (1 Gal)

Sale price$16.99

Hot Shot's Secret 150K Mile Extended Life Green Coolant (1 Gal) - Southern Diesel Supply

Hot Shot's Secret 150K Mile Extended Life Green Coolant (1 Gal) - Southern Diesel Supply

Hot Shot's Secret

Hot Shot's Secret 150K Mile Extended Life Green Coolant (1 Gal)

Sale price$16.99

Lucas Oil 10640 Super Coolant - Southern Diesel Supply

Lucas Oil 10640 Super Coolant - Southern Diesel Supply

Lucas Oil 10640 Super Coolant

Sale price$12.99

Mishimoto MMRT - RAM - 19 Aluminum Degas Bottle (2019 - 2025 Cummins) - Southern Diesel Supply

Mishimoto MMRT - RAM - 19 Aluminum Degas Bottle (2019 - 2025 Cummins) - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMRT-RAM-19 Aluminum Degas Bottle (2019-2025 6.7L Cummins)

Sale price$616.99

Black Raw

Mishimoto MMRA - LC Liquid Chill Radiator Coolant Additive - Southern Diesel Supply

Mishimoto MMRA - LC Liquid Chill Radiator Coolant Additive - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMRA-LC Liquid Chill Radiator Coolant Additive

Sale price$23.99

Mishimoto Pre - Mixed Liquid Chill Synthetic Coolant - Southern Diesel Supply

Mishimoto Pre - Mixed Liquid Chill Synthetic Coolant - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto Pre-Mixed Liquid Chill Synthetic Coolant

Sale priceFrom $31.99

Mishimoto MMRA - LC - FULLF Liquid Chill Synthetic Coolant - Southern Diesel Supply

Mishimoto MMRA - LC - FULLF Liquid Chill Synthetic Coolant - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMRA-LC-FULLF Liquid Chill Synthetic Coolant

Sale price$91.99

Mishimoto MMRA - LC - EG - YW Pre - Mixed Liquid Chill Coolant (Yellow) - Southern Diesel Supply

Mishimoto MMRA - LC - EG - YW Pre - Mixed Liquid Chill Coolant (Yellow) - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMRA-LC-EG-YW Pre-Mixed Liquid Chill Coolant (Yellow)

Sale price$33.99

Mishimoto MMRA - LC - EG - PR Pre - Mixed Liquid Chill Coolant (Purple) - Southern Diesel Supply

Mishimoto MMRA - LC - EG - PR Pre - Mixed Liquid Chill Coolant (Purple) - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMRA-LC-EG-PR Pre-Mixed Liquid Chill Coolant (Purple)

Sale price$33.99

Mishimoto MMRA - LC - EG - YW Pre - Mixed Liquid Chill Coolant (Yellow) - Southern Diesel Supply

Mishimoto MMRA - LC - EG - YW Pre - Mixed Liquid Chill Coolant (Yellow) - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMRA-LC-EG-YW Pre-Mixed Liquid Chill Coolant (Yellow)

Sale price$33.99

Get Diesel Deals, New Product Drops, and Build Tips

E-mail

Customer Relations

Employment Opportunities
Contact Us
FAQ's
Search
Tune Revision Form

Our Policies

Privacy Policy
Return and Refund Policy
Shipping Policy
Terms of Service

About

At Southern Diesel Supply, we are passionate about power, performance, and precision. Specializing in premium accessories for RAM, Chevrolet, GMC, and Ford, we provide truck owners with the best upgrades to enhance durability, style, and functionality.

© 2026, Southern Diesel Supply.