Hardknocks Diesel

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Hardknocks Diesel Hardknocks Diesel is your go-to shop for diesel pickup repairs and upgrades. We work on Powerstroke, Duramax, and Cummins.

We specialize in engine, drivelines, all the way down to maintenance.

Hot Shot's Secret  EDT + Winter Defense is IN STOCK! We have multiple sizes available, including gallons and 16oz refill...
10/08/2026

Hot Shot's Secret EDT + Winter Defense is IN STOCK!
We have multiple sizes available, including gallons and 16oz refillable squeeze bottles!

We also carry most of the Hot Shot’s Secret additive lineup!

Stop by Hardknocks Diesel & stock up!

S&S Diesel Motorsport 10mm CP3 & a Fleece Performance Engineering cheetah going on a duramax!
09/16/2026

S&S Diesel Motorsport 10mm CP3 & a Fleece Performance Engineering cheetah going on a duramax!

A big thank you to Woodbine Fire & Rescue Association  for trusting us and S&S Diesel Motorsport products with their amb...
08/20/2026

A big thank you to Woodbine Fire & Rescue Association for trusting us and S&S Diesel Motorsport products with their ambulance!

We installed an S&S DCR conversion along with their new "LPK" leak prevention kit to help keep this 6.7 Powerstroke ready when it matters most!

08/14/2026
We will have these in stock soon! Available for installation or pick up
08/07/2026

We will have these in stock soon! Available for installation or pick up

The S&S Diesel Motorsport Ford 6.7L Fuel Leak Prevention Kit is officially available!

Say goodbye to the factory’s brittle plastic fuel filter housing and plastic return fitting. Our billet aluminum filter head keeps the filter in the factory location while providing 4-micron absolute filtration at 99% efficiency and nearly twice the dirt-holding capacity of the OEM filter.

Designed to eliminate two common failure points without compromising filtration, this kit delivers the durability and performance your 6.7L Power Stroke deserves.

Contact your favorite S&S dealer and get yours today!

Firepunk Diesel - Rear adjustable control arm kit, installed and ready to work! This upgrade gives the rear suspension o...
08/01/2026

Firepunk Diesel - Rear adjustable control arm kit, installed and ready to work!

This upgrade gives the rear suspension on your 2014+ ram improved axle control, increased strength, and better stability under heavy loads and hard acceleration. Whether you're towing, racing, or putting serious horsepower to the ground, this is a huge improvement over the factory setup!

2022 F250 in for some added power & reliability! This included a S&S Diesel Motorsport DCR conversion and a KC Turbos je...
07/30/2026

2022 F250 in for some added power & reliability! This included a S&S Diesel Motorsport DCR conversion and a KC Turbos jetfire turbo!

Address

Missouri Valley, IA
51555

Opening Hours

Monday 8am - 12pm
1pm - 5pm
Tuesday 8am - 12pm
1pm - 5pm
Wednesday 8am - 12pm
1pm - 5pm
Thursday 8am - 12pm
1pm - 5pm
Friday 8am - 12pm
1pm - 5pm

Telephone

+17126000145

Website

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