Darkside Diesel LLC

Darkside Diesel LLC Cummins diesel performance specialists helping you improve power, towing, and economy.

Custom 2nd Gen Swap! Steed Speed manifold with 45mm gate provision. Pulsar PTG 68/62 and Pulsar 45mm gate. Massive AFE a...
11/11/2025

Custom 2nd Gen Swap! Steed Speed manifold with 45mm gate provision. Pulsar PTG 68/62 and Pulsar 45mm gate. Massive AFE air filter! Ace Race parts HD clamp. All the stainless to go with! Finished off with Darkside Diesel Tunes!

1,200hp 48re with ratchet shifter! External transmission cooler to keep temps in check. Swapped over to Darkside Diesel ...
10/30/2025

1,200hp 48re with ratchet shifter! External transmission cooler to keep temps in check. Swapped over to Darkside Diesel custom tunes to top it off!

 - 800hp 48re transmission, custom ECM calibrations  Backcountry 2.0 lift, Carli track bar, Carli torsion sway bar, Carl...
10/06/2025

- 800hp 48re transmission, custom ECM calibrations

Backcountry 2.0 lift, Carli track bar, Carli torsion sway bar, Carli ball joints, Carli limiting straps

30% over injectors

165

Billet sump

3rd Generation Ram exhaust manifold

HE351 60/67

625 head studs

Valve springs and pushrods

Monster Ram, piping, charge air cooler, and intake

Transmission cooler

Factory rockers assemblies

Upgraded steering linkage

Is it TIG Thursday?
06/26/2025

Is it TIG Thursday?

2003-2009 Cummins Stainless Upper Coolant Pipe
05/14/2025

2003-2009 Cummins Stainless Upper Coolant Pipe

Custom wastegate pipe. Wrap around the turbo and out the fender for full visibility! Anything is possible.
03/12/2025

Custom wastegate pipe. Wrap around the turbo and out the fender for full visibility! Anything is possible.

Installed this amazing Heavy Hauler engine from . Fueled by  Torque Master injectors and 10mm Cp3.  Manifold taking care...
03/04/2025

Installed this amazing Heavy Hauler engine from . Fueled by Torque Master injectors and 10mm Cp3. Manifold taking care of exhaust flow for us.

2023 6.7 Cummins with Banks Monster Ram. Providing increase in air flow and protecting the engine. Remove the factory gr...
02/21/2025

2023 6.7 Cummins with Banks Monster Ram. Providing increase in air flow and protecting the engine. Remove the factory grid heater bolt that falls out and ruins your expensive engine!

01/28/2025
1996 12 Valve Cummins got tons of upgrades! We built in house a custom set of compounds using a K27 and PSR ball bearing...
01/27/2025

1996 12 Valve Cummins got tons of upgrades! We built in house a custom set of compounds using a K27 and PSR ball bearing 475! 4k governor springs and Dynomite stage 3 injectors. Timing set at 22 degrees. Manton valve springs and pushrods. Fass lift pump to keep the P7100 pump happy. Valair dual disc clutch, hydraulics, and large input shaft. Set of KC Fab traction bars to keep the rear axle planted under the truck. Carli control arms in the front to recenter front axle. EMF ball joints to enhance this trucks ride quality for life.

True friends give you gifts from the heart.  thank you for always having my back and supporting me mentally through my j...
11/16/2024

True friends give you gifts from the heart. thank you for always having my back and supporting me mentally through my journey. You are a real friend that my wife and I cherish. Keep your friends close.

09/03/2024

Address

108 4th Street
Wilder, ID
83676

Opening Hours

Monday 8am - 6pm
Tuesday 8am - 6pm
Wednesday 8am - 5:30am
Thursday 8am - 6pm
Friday 8am - 6pm

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