DPS | Turbos for 5.9 Cummins 2003-2007
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The S300 foundation provides a strong starting point, enhanced by forged milled compressor wheels, 360° thrust bearings, and oversized shafts for durability under sustained boost.
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This part is priced on request. Call or text us and we’ll give you a price and lead time.
Fast AU-Wide Shipping
Special order – no change-of-mind returns
12 month warranty
Will it fit your vehicle?
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Dodge / Ram | Ram 2500-3500 | — | 2003 – 2007 | ISB |
| Dodge / Ram | Ram 2500-3500 | Cummins 3rd Gen (2003-2007) | 2003 – 2007 | — |
Years are as listed by the manufacturer/supplier and may be US model years for US-built trucks.
Fitment listings are a guide. Not sure? Send us your rego or VIN and our team will check the part for your vehicle, before or after you order.
Description
DPS | Turbos for 5.9 Cummins 2003-2007
Genuine DPS 3rd gen Turbos For 03-07 5.9 Dodge Cummins |Fits 2003, 2004, 2005, 2006, 2007
DIRECT FIT FOR 2003-2007 TRUCKS
DPS turbos combine proven hardware with precision airflow engineering.
The S300 foundation provides a strong starting point, enhanced by forged milled compressor wheels, 360° thrust bearings, and oversized shafts for durability under sustained boost.
Where DPS separates itself is airflow design. They manufacture their own compressor and turbine housings, optimized using computational fluid dynamics.
This engineering approach reduces turbulence, improves flow velocity, and balances efficiency across the RPM range.
Benefits include:
- Faster boost onset
• Lower exhaust drive pressure
• Improved thermal control
• Higher airflow ceiling
Performance isn’t just added. It’s engineered.
Sold standard with DPS wastegated exhaust housing.
- (Turbonator VGT Improves Spool-up by approximately 200-300 RPM’s. See below for details)
DPS Ball Bearing upgrades improve spool-up by 150-200 RPM’s. Ball Bearing and VGT upgrades can be done together for massive improvements in spool-up and responsiveness.
Turbonator® VGT Exhaust Housing Upgrade
- Improves spool-up by 200-300 RPM’s.
- Allows exhaust braking on all truck years.
- Improves low-end power and torque.
- Improves low-end torque.
- Improves engine performance and output.
- More responsive and drivable.
- Cleans up smoke.
- Improves fuel mileage.
- Allows a larger turbo to be used because of the quick spool-up.
- Options are with or without exhaust braking.
Turbine Housing Info: Most DPS Turbos come standard with a T3 Wastegated exhaust housing, which can be upgraded to the Turbonator VGT/INT Housing. DPS Wastegated housings flow approximately 22 lbs/min through the wastegate when it is open. This is the equivalent of having one size larger turbine housing at wide open throttle, with the spool-up and drivability of a smaller exhaust housing when accelerating. The best of both worlds! On 5.9 Cummins engines their testing has shown their T3, wastegated, exhaust housings perform superior in all categories compared to T4 housings non-wastegated housings. Their standard divided scroll turbine housings create boost nearly 100-200 RPM faster and flow equal to or superior to the standard T4 housings at WOT. DPS also have their Turbonator® VGT housing available as an upgrade on most of their turbos, which improve spool-up another 200-300 RPM faster.
Why our Compressor Housings are better:
- Ported shroud inlet (unique design).
- More compact design for better fitment.
- Triple barbed inlet and outlet prevent tubes coming off.
- Up to 7% airflow increase over standard Borg Warner Housing.
DPS manufactures (designs, casts and machines) nearly all of their own compressor and exhaust housings. Designed with CFD (Computational Fluid Dynamics) software for improved flow compared to anything their competitors have. Their engineer staff knows how their products flow and perform, They don’t just guess.
Please contact us for product options, availability and pricing.
Shipped Australia-Wide
- Dispatched from within Australia with tracking.
- Same-day dispatch on in-stock orders placed before 11am AEST, Monday–Friday.
- Shipping is calculated at checkout based on size, weight and your delivery address.
- Delivery usually takes 2–10 business days after dispatch, depending on your location.
- Need your tracking number? Once your order has shipped, email sales@willysworkshop.com.au with your order number and we’ll send you the carrier and tracking details.
Freight question? Call us on (07) 5619 7869.
DPS | Turbos for 5.9 Cummins 2003-2007 Genuine DPS 3rd gen Turbos For 03-07 5.9 Dodge Cummins |Fits 2003, 2004, 2005, 2006, 2007 DIRECT FIT FOR 2003-2007 TRUCKS DPS turbos combine proven hardware with precision airflow engineering.
Additional information
| Weight | 1.5 kg |
|---|---|
| Dimensions | 25 × 20 × 12 cm |
Warranty: 12 months from Willys Workshop
Sold and warranted by Willys Workshop. Parts carry our 12-month warranty against defects, from the date of purchase or installation (whichever is later), subject to any manufacturer terms and fair wear and tear (Terms & Conditions, clause 7.1(b)). This is in addition to your rights under the Australian Consumer Law, which cannot be excluded.
- 30-day change-of-mind returns on eligible items: unused, uninstalled and in the original packaging, with a Return Authorisation from us first. A 15% restocking fee applies and return postage is at your cost.
- Wrong fit: if a part covered by our Fitment Guarantee doesn’t fit, we pay the return freight both ways and there’s no restocking fee.
- Special-order or imported-to-order items, electrical parts, ECUs and tuners once registered, connected or flashed, parts that have been fitted or modified, and clearance items can’t be returned for change of mind. Your rights for faulty goods still apply.
- Refunds are made to your original payment method within 14 business days of us receiving and inspecting the return.
Full details: Returns & Refund Policy and Terms & Conditions.
Warranty claims are coordinated through Willys Workshop. Email sales@willysworkshop.com.au or call Warana (07) 5619 7869 / Oxley (07) 3377 3421 with your order number and a description of the issue.
