INJECTABLES — 1998.5–2002 DODGE RAM 5.9L CUMMINS (24-VALVE, VP44)

Lower EGT, cool charge temps, and add on-demand power with water/methanol, diesel nitrous oxide, and CO₂ intercooler sprayers. This collection is curated specifically for the 1998.5–2002 Ram 2500/3500 5.9L 24-valve (VP44).

Shop by Subcategory

Water/Methanol Injection — Quench EGT and support more fuel/timing: 98.5–02 Injectables category, Scheid Diesel lineup.
Nitrous Oxide (Diesel) — Progressive/dual-stage diesel kits for track use: Nitrous options (98.5–02).
CO₂ Intercooler Sprayer (CryO₂) — Rapid IAT drop at the cooler core: DEI CryO₂ sprayer kits.
General Water / NOS / Propane Hub — Cross-platform components and accessories: Water / NOS / Propane.

Featured 98.5–02 Picks

Water/Methanol Kits (98.5–02) — reduce EGT and support higher fueling on VP44 builds.
Diesel Nitrous Systems — progressive control for safe, repeatable track performance.
DEI CryO₂ Intercooler Sprayer — CO₂-based intercooler chilling for quick IAT recovery between pulls.
Scheid Diesel Components — proven hardware to pair with your injectables package.

Why Buy from CPP Diesel

2nd-Gen Focus: Parts and guidance tailored to 98.5–02 VP44 trucks.
Curated Brands: DEI CryO₂, Nitrous Express references, and Scheid Diesel options.
System Integration: Advice on jetting/nozzle sizing, safety controls, and monitoring (boost/EGT/fuel pressure).
Fast Shipping: Popular kits and accessories ship quickly from U.S. warehouses.

Round out your setup with GAUGES / ACCESSORIES for safety and EXHAUST SYSTEMS to help manage EGT.

Helpful Notes

Water/Meth Basics: Common mixes are 50/50 or 70/30 (water/meth). Start with smaller nozzles and ramp up with datalogged EGT.
Nitrous Safety: Use a window switch, WOT activation, and adequate lift-pump supply; track/competition use only.
Cooling vs. Power: CO₂ sprayers target intercooler temperature drops; water/meth targets in-cylinder cooling and knock margin.
Supporting Mods: Ensure healthy turbo, fueling, and monitoring before adding injectables.

Frequently Asked Questions

What’s the safest first injectable for a mostly stock VP44?

Water/methanol is the typical starting point because it reduces EGT and supports modest fueling increases. See our 98.5–02 Injectables category.

Do I need extra gauges before running injectables?

Yes—monitor EGT, boost, and fuel pressure (to protect the VP44). Shop GAUGES / ACCESSORIES.

Can I run nitrous on a towing setup?

We consider nitrous oxide a race-only upgrade. For towing EGT control, use water/methanol or a CO₂ sprayer instead.

Where does a CO₂ sprayer help most?

On heat-soaked intercoolers between pulls or passes—see CryO₂ style sprayers in our 98.5–02 Injectables section.

Will these kits fit my 1998.5–2002 Ram interior/engine bay?

Yes—our 98.5–02 category groups universal kits and hardware that package well in late 2nd-Gen Rams. See current listings for specifics.

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