CUMMINS CONVERSION PARTS & KITS

Build your swap the right way with adapter plates, engine & transmission mounts, clutches & flywheels, flexplates, conversion exhaust, and standalone transmission controllers for Allison, 47RH/47RE/48RE/68RFE and more. CPP Diesel stocks parts that fit and last—whether you’re towing, daily driving, or dialing in a Fummins build.

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POPULAR SWAP TASKS

FITMENT CHEAT SHEET

TRANSMISSION	TYPICAL YEARS / PLATFORM	NOTES
47RH / 47RE	1994–2002 Ram	Common auto swap base; confirm converter pattern & flexplate thickness with adapter kits.
48RE	2003–2007 Ram	Pair with appropriate flexplate & adapter; verify converter pilot engagement.
68RFE	2007.5–2024 Ram	Standalone control not typical; focus on adapter interface and driveshaft angles.
Allison	Common retrofit	Requires correct bellhousing adapter, flexplate spacing, and TCM strategy.

Tip: Always check bolt pattern, input shaft spline, converter spacing, and starter index before final assembly.

WHY CPP DIESEL

Swap-Ready Parts: Adapters, mounts, flexplates, and controllers organized by conversion task.
Tech Support: Call 724-785-4022 for part matching and swap planning.
Fast Fulfillment: Quick shipping on in-stock items and transparent ETAs.
Proven Brands: ATS, BD Diesel, Industrial Injection, AFE, and more.
Accurate Fitment: Clear notes per product—buy once, install once.

HELPFUL NOTES

Controller Needs: Allison and some retrofit automatics may require a standalone TCM—see our Transmission Controllers category.
Driveline Geometry: Swaps can change mount height and angles; verify driveshaft length, U-joint size, and crossmember alignment.
Starter / Ring Gear: Confirm starter position and ring gear compatibility when mixing plates, spacers, and flexplates.
Emissions: Some parts are for competition/off-road where permitted. For on-road use, choose emissions-compliant components and verify product notes.

CUMMINS CONVERSION FAQ

What parts do I need for a basic Cummins swap?

Most builds use an adapter plate, conversion mounts, a matching clutch/flywheel or flexplate, and—when applicable—a transmission controller plus exhaust/turbo plumbing.

Do Allison conversions need a standalone controller?

Often, yes. Review our Transmission Controllers category for TCM options and compatibility notes.

How do I choose the correct flexplate or flywheel?

Match bolt pattern, converter/flywheel spacing, and engine year. Check each product’s fitment chart and notes before ordering.

Will my driveshafts need modification?

Many swaps change overall length/angles. Plan for driveshaft re-length and re-balance as needed.

Are conversion parts street-legal?

Some are 50-state legal, others are competition-only. Always check the product’s compliance notes and local regulations.

RELATED DIESEL CATEGORIES

CPP Diesel curates proven Cummins conversion parts & kits for Dodge Ram builds and cross-platform swaps: adapter plates, engine/trans mounts, clutches & flywheels, flexplates, exhaust & turbo components, and transmission controllers for Allison, 47RH/47RE/48RE/68RFE and more. Shop quality brands with fast shipping and real diesel tech support.