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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)

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RAM, (2025-present) 6.7L Cummins

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Every parts category for your truck — pick one to narrow it down, or scroll to browse everything that fits.

WCFab WCF100874 Stage 1 High Flow Intake Bundle Kit (2025-2026 6.7L Cummins)

Air Intake 4

WCFab WCF100114 AAM 12" Rear Differential Cover (2020-2026 6.6L Duramax; 2019-2026 6.7L Cummins)

Banks Power Ram-Air® Differential Cover Kit (2019-2026 Cummins; 2020-2026 Duramax)

Royal Purple 01301 75W-140 Max-Gear Synthetic Gear Oil

Lucas Oil 10043 Heavy Duty 80W-90 Gear Oil

Hot Shot's Secret Blue Diamond 75W-90 HD Synthetic Gear Oil

Axel & Driveline 14

WCFab WCF100258 Billet Aluminum Brake Master Cylinder Cap, Black Anodized (1998.5-2026 5.9/6.7L Cummins)

WCFab WCF100257 Billet Aluminum Brake Master Cylinder Cap, Clear Anodized (1998.5-2026 5.9/6.7L Cummins)

WCFab WCF100209 Brake Master Cylinder Reservoir Cover (2006-2026 5.9/6.7L Cummins)

Lucas Oil 10827 DOT 4 Synthetic Brake Fluid

Lucas Oil 10825 DOT 3 Synthetic Brake Fluid

Brakes 7

PPE 249002020 Battery Heat Shield (2016-2025 Cummins)

Lucas 11238 Sure Start Premium Starting Fluid

Charging/Starting 2

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

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

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)

Cooling System 13

Edge Products 84130-3 Insight CTS3 Universal OBD-II Monitoring

Edge Products 38603 A-Pillar Display Mount (2019-2025 6.7L Cummins)

Edge Products 98620 EAS EGT Kit - Daily Driver/Tow Kit

Edge Products 98607 EAS Pressure Sensor (0-100 PSI)

Digital Monitors 4

Gator Fasteners HSK5967C Heavy Duty Head Stud Kit (1998.5-2025 5.9/6.7L Cummins)

Gator Fasteners RBK59CR67C Heavy Duty Rod Bolt Kit (Fractured Cap Rods) (2003-2025 5.9/6.7L Cummins)

Gator Fasteners MSK67C Heavy Duty Main Stud Kit w/ Factory Girdle (2007.5-2025 6.7L Cummins)

Engine 3

MBRP Diesel Resonators (Aluminized & Stainless Steel)

ATS Diesel Performance ATS 213-045-1000 45MM Wastegate Adapter

ATS Diesel Performance ATS 204-011-2326 Premium Exhaust Manifold Gasket Set (2007.5-2025 Cummins)

Exhaust System 35

BHP BHP4001 Flip Up License Plate Bracket

BHP BHP3001 Clamp On Sled Stops - Behind Roll Pan

Exterior 3

Hot Shot's Secret Everyday Diesel Treatment

Hot Shot's Secret Diesel Extreme Fuel Additive

FASS XWS3002XL Extended Length Extreme Water Separator Filter

FASS XWS3002 Extreme Water Separator Filter

FASS PF3001XL Extended Length Particulate Filter

BDS Suspension Drop Pitman Arm 5.25 Inch Drop (2014/13-2026/23 6.7L Cummins 4WD)

Apex Chassis KIT385 Extreme Duty Tie Rod & Drag Link Kit (2014/2013-2026 Cummins)

Steering 7

BDS Suspension 2 Inch Lift Kit (2013-2026 3500 6.7L Cummins Rear Air Ride 4WD)

BDS Suspension 2 Inch Leveling Kit (2013-2026 3500 6.7L Cummins 4WD)

BDS Suspension Front Sway Bar Link Disconnect Kit (2014/13-2025/23 6.7L Cummins)

BDS Suspension 3 Inch Lift Kit w/ Radius Arm (2014-2018 and 2025) Ram 2500 6.7L Cummins 4WD

BDS Suspension 3 Inch Lift Kit FOX 2.5 Coilover Conversion (2014-2018, 2025-2026 2500 6.7L Cummins 4WD)

Suspension 65

WCFab WCF25-3290-120 32 In. X 90 In. Modular Steel Work Bench

Calibrated Power Solutions Stealth Boost Tester - HD Regulator

Calibrated Power Solutions S300 / S400 / S400R / S500 Turbo Stealth Boost Tester Inlet Adapter - For Stealth Boost Tester HD Regulator

WCFab WCF25-3248-120 32 In. X 48 In. Modular Steel Work Bench

Tools 15

B&W TS20067BMP Tow & Stow Adjustable Ball Mount, MultiPro/MultiFlex 2.5" Shank, 7" Drop

B&W Trailer Hitches B&W GNRK1320 Turnoverball Gooseneck Hitch (2019-2025 Cummins)

B&W Trailer Hitches B&W RVK3670 Companion Ram OEM Fifth Wheel Hitch (2010-2025 cummins)

B&W Trailer Hitches B&W WDHK4500 Weight Distribution Hitch

B&W Trailer Hitches B&W BW-RE-SL Reducer Sleeves

Towing 44

BD Diesel 1300601-DS Xtruded Double Stacked Transmission Cooler

BD Diesel 1300611 Xtruded Auxiliary Trans Cooler

BD Diesel 1030607 Universal Transmission Cooler Electric Fan

Hot Shot's Blue Diamond Dexron VI & Mercon LV Transmission Fluid (1 Gal)

Hot Shot's Secret Blue Diamond ATF+4/DEXRON III/MERCON V Trans Fluid (1 Gal)

Transmission 19

Tuning 1

Turbosmart Constant Tension Clamps 1.625-2.375

PPE 116150055 Titanium Woven T6 Turbo Blanket

ATS Diesel Performance ATS 202-104-1000 T4 Turbo Blanket

Turbo 10

Wheels 0

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Air Lift (20)

AirDog (6)

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ATS Diesel Performance (3)

B&W Trailer Hitches (21)

Banks Power (2)

BD Diesel (9)

BDS Suspension (11)

Big Hitch Products (6)

Bilstein (33)

Calibrated Power / DuramaxTuner (2)

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Dynomite Diesel Products (2)

Edge Products (4)

Exergy Performance (13)

FASS (5)

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G&R Diesel (1)

Gator Fasteners (5)

Hot Shot's Secret (38)

HP Tuners (1)

Lucas Oil (24)

Mahle (2)

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Merchant Automotive (3)

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Pacific Performance Engineering (9)

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S&B (2)

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Wehrli Custom Fabrication (16)

XDP MFG (9)

Air Lift (20) AirDog (6) Apex Chassis (1) ATS Diesel Performance (3) B&W Trailer Hitches (21) Banks Power (2) BD Diesel (9) BDS Suspension (11) Big Hitch Products (6) Bilstein (33) Calibrated Power / DuramaxTuner (2) DNR Customs (1) Dynomite Diesel Products (2) Edge Products (4) Exergy Performance (13) FASS (5) Fleece Performance Engineering (1) G&R Diesel (1) Gator Fasteners (5) Hot Shot's Secret (38) HP Tuners (1) Lucas Oil (24) Mahle (2) MBRP (25) Merchant Automotive (3) Mishimoto Performance Parts (17) Pacific Performance Engineering (9) Royal Purple (1) S&B (2) Turbosmart (1) Wehrli Custom Fabrication (16) XDP MFG (9)

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294 products

Mahle

MAHLE G32761 T6 Turbocharger Flange Gasket

Sale price$7.99

Mahle

MAHLE G33430 T4 Turbocharger Inlet Flange Gasket

Sale price$33.99

Mishimoto MMHP - TB Titanium Turbo Blanket - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMHP-TB Titanium Turbo Blanket

Sale priceFrom $164.99

BD Diesel

BD Diesel 1300601-DS Xtruded Double Stacked Transmission Cooler

Sale price$723.99

BD Diesel

BD Diesel 1300611 Xtruded Auxiliary Trans Cooler

Sale price$354.99

BD Diesel

BD Diesel 1030607 Universal Transmission Cooler Electric Fan

Sale price$85.99

Hot Shot's Secret

Hot Shot's Blue Diamond Dexron VI & Mercon LV Transmission Fluid (1 Gal)

Sale price$64.99

Hot Shot's Secret

Hot Shot's Secret Blue Diamond ATF+4/DEXRON III/MERCON V Trans Fluid (1 Gal)

Sale price$64.99

Hot Shot's Secret

Hot Shot's Secret Blue Diamond G56 Severe Duty SAE 50 Transmission Fluid (1 Gal)

Sale price$78.99

Hot Shot's Secret

Hot Shot's Secret Shift Restore Transmission Fluid Additive TSE

Sale priceFrom $31.99

Hot Shot's Secret

Hot Shot's Secret ADRENALINE Pro Shift +4 Transmission Fluid (1 Gal)

Sale price$65.99

Hot Shot's Secret

Hot Shot's Secret Blue Diamond Type F Transmission Fluid (1 Gal)

Sale price$65.99

Hot Shot's Secret

Hot Shot's Secret ADRENALINE Speed Shift Transmission Fluid (1 Gal)

Sale price$65.99

Hot Shot's Secret

Hot Shot's Secret ADRENALINE Nano Shift Transmission Fluid (1 Gal)

Sale price$65.99

Lucas Oil

Lucas Oil 10418 Multi-Vehicle Automatic Transmission Fluid (ATF)

Sale price$10.99

Mishimoto MMTC - U Universal Transmission / Power Steering Cooler - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMTC-U Universal Transmission / Power Steering Cooler

Sale price$122.99

Mishimoto MMTC - SP - 13 Universal Transmission Fluid Cooler - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMTC-SP-13 Universal Transmission Fluid Cooler

Sale price$286.99

Black Silver

Mishimoto MMOC - F Heavy - Duty Transmission Cooler With Fan - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMOC-F Heavy-Duty Transmission Cooler With Fan

Sale price$220.99

Mishimoto MMTC - TF - 2075 Universal Transmission Fluid Cooler - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMTC-TF-2075 Universal Transmission Fluid Cooler

Sale price$120.99

Mishimoto MMTC - TF - 1212 Universal Transmission Fluid Cooler - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMTC-TF-1212 Universal Transmission Fluid Cooler

Sale price$113.99

Mishimoto MMTC - TF - 1275 Universal Transmission Fluid Cooler - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMTC-TF-1275 Universal Transmission Fluid Cooler

Sale price$86.99

Mishimoto MMOC - OO - 17 / MMOC - SSO - 17 Heavy - Duty Fluid Cooler - Southern Diesel Supply

Mishimoto Performance Parts

Mishimoto MMOC-OO-17 / MMOC-SSO-17 Heavy-Duty Fluid Cooler

Sale price$472.99

Silver Black

B&W Trailer Hitches

B&W Trailer Hitches B&W GNRK1320 Turnoverball Gooseneck Hitch (2019-2025 Cummins)

Sale price$599.99

B&W Trailer Hitches

B&W Trailer Hitches B&W RVK3670 Companion Ram OEM Fifth Wheel Hitch (2010-2025 cummins)

Sale price$1,699.99

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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.