Hellcat Supercharger Setup Checklist: 10-Minute Driveway ID Guide

Before you buy a pulley, schedule a porting service, or order anything for your Hellcat-platform vehicle, you need to confirm what’s actually bolted under your hood. Guessing costs money. This guide doesn’t guess.

Why the checklist matters before you buy anything

The Hellcat-family platforms — Challenger, Charger, Durango Hellcat, Trackhawk, TRX, and the various Redeye, Widebody, Demon, and Jailbreak variants — don’t all share the same IHI supercharger. There are two: the 2.4L and the 2.7L. They look similar from a distance, but the parts don’t cross over.

A pulley ordered for the wrong blower is a return at best. A porting service performed on the wrong casting is a wasted service. Before any shop or any parts supplier quotes you work, they’re going to ask which one you have. This checklist answers that question in about 10 minutes, in your driveway, with no special tools.

If you want a full breakdown of what distinguishes the two platforms before running the checklist, start with 2.4L vs 2.7L Hellcat Superchargers — which one is on your vehicle.

The 10-minute driveway checklist

What you need: a clear photo of the supercharger snout (airbox off), your original Monroney sticker or build sheet (if you have it), and your VIN.

Step 1: Pull the window sticker or build sheet (3 minutes)

If you still have the original Monroney sticker from purchase, or a build sheet from the dealer, check the powertrain section. High-output Hellcat-family trim designations — Hellcat, Redeye, Widebody, Jailbreak, Demon, TRX, Trackhawk — list the supercharger variant. This is the cleanest data source you have.

If you don’t have the sticker: move to Step 2.

Step 2: VIN decode against the factory parts catalog (3 minutes)

Your VIN encodes the engine option code, which maps 1-to-1 to the supercharger variant. You can decode it through:

• A Mopar dealer parts counter (free; ask for the engine and supercharger code on your build)
• A reputable VIN-decode service that pulls factory option codes, not just trim level

Important: Always verify the engine and supercharger option codes directly against the factory parts catalog or dealer build data for your exact model year. Do not rely on generic internet VIN decoders or third-party listing descriptions.

If you can’t get a clean VIN decode: move to Step 3.

Step 3: Visual ID with the airbox off (5 minutes)

Remove the airbox. Take a clear photo of the supercharger snout — the front casting that the inlet duct connects to.

The 2.7L has a noticeably larger snout casting than the 2.4L. If you’re familiar with both, this is readable from a good photo. If you’ve never seen them side by side, it’s harder to judge from visual alone.

When to stop here: if you’re unsure from the photo, don’t guess. FAS can confirm 2.4L or 2.7L from a clear snout photo before you ship anything. Use the contact form on the porting service page, attach the photo, and ask. It’s a free confirm.

When to stop and call FAS: If you’ve completed Steps 1–3 and still aren’t certain which platform you have, stop. Don’t order parts. Don’t book a service. Contact FAS with your VIN and a snout photo and ask for a platform confirmation before you spend anything. A wrong-platform service creates problems for both parties — a 2-minute call or message saves days of back-and-forth.

Step 4: Confirm with a known-good source

Once you have a platform ID — from the sticker, from a VIN decode, or from a visual confirm — cross-reference it with one of:

• Your tuner (if your car is already tuned, they know which platform they calibrated on)
• Your dealer’s service history (any OBD event that references the supercharger code)
• A platform-specific forum with documented year/model/blower breakdowns