Double Duty Diesel

Double Duty Diesel Performance parts for the diesel enthusiast

Fluidampr - Ideal for competition and for owners who depend on their work truck.By installing a Fluidampr viscous damper...
30/07/2026

Fluidampr - Ideal for competition and for owners who depend on their work truck.

By installing a Fluidampr viscous damper you will:

✅ Reduce wear on the main bearings
✅ Reduce wear on the timing gear
✅ Achieve more accurate valvetrain operation
✅ Lower the risk of crank failure

Unlike rubber based dampers, Fluidampr automatically adapts to your modifications, then continuously self-tunes in real time to optimum damping at both peak levels and across a broad changing frequency range 🤘🏻

We have a range of Fluidampr products in stock and ready to ship - hit the link in our bio to shop now 💸

Some of the steps we complete to get you Cummins 6BT head O Ringed and ready for more Boost 😊. Cutting ring depths for c...
30/07/2026

Some of the steps we complete to get you Cummins 6BT head O Ringed and ready for more Boost 😊. Cutting ring depths for correct wire protrusion, can see in pic 2 wire installed vs cut groove, pic 3 all complete - this came out beautiful and finally a little vid showing the porting job on this one headed to South 🇦🇺 ready to make big power with the stage 4 coltcams it shipped with

Power Driven tools to make working on and modifying your Cummins 6bt easy - this set is headed out to Queensland 🇦🇺 toda...
30/07/2026

Power Driven tools to make working on and modifying your Cummins 6bt easy - this set is headed out to Queensland 🇦🇺 today

Kingspeed knocked it out of the park with this 12 valve Cummins cover - amazing detail! Think Bushdoof Lighting in West...
29/07/2026

Kingspeed knocked it out of the park with this 12 valve Cummins cover - amazing detail! Think Bushdoof Lighting in Western 🇦🇺 where it is headed have something special in the works 😉

MAHLE USA upper gasket kit for a 2007.5-2018 Cummins 6.7 on its way to Queensland 🇦🇺 today - need quality gaskets for C...
24/07/2026

MAHLE USA upper gasket kit for a 2007.5-2018 Cummins 6.7 on its way to Queensland 🇦🇺 today - need quality gaskets for Cummins we have them in stock 😁👍

Steed Speed Manifolds are CNC machined from 1018 mild steel billet and finished in a satin black Tech-line Coating - not...
23/07/2026

Steed Speed Manifolds are CNC machined from 1018 mild steel billet and finished in a satin black Tech-line Coating - not your average cheap cast or tubular manifold.

Engineered for serious performance, the Tech-line coating is designed to handle temperatures up to 1700°F continuously and up to 2000°F for short periods.

When it comes to quality, durability, and flow, Steed Speed builds some of the finest manifolds on the planet 🪐

In stock and ready to ship! 📦

Want in cab tuning for your P pumped 12 valve Cummins 6bt?? = Power Driven AFC Live . Switch to full power on the fly -...
23/07/2026

Want in cab tuning for your P pumped 12 valve Cummins 6bt?? = Power Driven AFC Live . Switch to full power on the fly - this one is on the way to a customer who has just been delivered his new 2nd gen Dodge project in NSW 🇦🇺👍👍

All the best bits head out to Queensland 🇦🇺 today for a Cummins 6bt build- head bolt, freeze plug and Dustbowl filter ,...
16/07/2026

All the best bits head out to Queensland 🇦🇺 today for a Cummins 6bt build- head bolt, freeze plug and Dustbowl filter , so@e stage 2 injectors and upper gasket set and rear main 💪💪🤘

11/07/2026

Love the warmth of the winter sun 🤣

Address

Shelly Beach, NSW

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm
Saturday 9am - 5pm

Telephone

+61439584566

Website

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