S&S Diesel Early 5.9L Cummins Injectors (2003-2004)
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
S&S Diesel Early 5.9L Cummins Injectors (2003-2004)
Upgrade your diesel performance with the S&S Diesel 5.9L Cummins Injectors, designed specifically for 2003 and 2004 models. Our injectors come with several benefits:
- SAC nozzles: Available in all sizes (except TorqueMaster).
- Proprietary nozzle honing process: Ensures clean and consistent holes for optimal performance.
- Flow-matched nozzles: Each set is matched to a 1% variance, adhering to OE standards for reliability.
- Injector flow-matching: Maintained at a 3% variance per set per Viscor SAE-J967 at 40 degrees C and 100 bar.
- Customized injection profiles: Each injector is aligned with 4 different pressure/energizing points to enhance performance.
- Body modifications: Increased nozzle flow slows down the open/closing time, improving the injection rate shape.
Choose from brand new or Bosch remanufactured bodies, sourced directly from Bosch to ensure quality. Our sizing convention is based on a percentage increase in nozzle flow over stock, available in sizes ranging from TorqueMaster to 500% for your specific needs.
Core Charge: A $1200 core charge applies, fully refundable upon receipt of your returned injectors.
