Product Description
Restore compression and durability in your 6.7L Cummins with the MAHLE 224-3732WR.020 piston set with rings. This +.020" oversize set delivers OE geometry, expansion-controlled design, and compensated ring grooves for stable sealing under heavy towing and heat. Includes matched rings, wrist pins, and retainers—engineered for long service life and consistent oil control.
Fitment
- 2007.5–2018 Ram 2500 / 3500 with 6.7L Cummins ISB (24-valve)
Cross-Reference / Alternatives (Mahle on CPP Diesel only)
- MAHLE 224-3732WR (STD BORE)
- MAHLE 224-3732WR.040 (.040)
- MAHLE S42140.020 RING SET (.020) – PER CYLINDER
- MAHLE S42140 RING SET (STD) – PER CYLINDER
Notes
Block must be bored and finish-honed to +.020". Always verify piston-to-wall clearance and ring end gaps per service manual.
FAQ
Is this a full set or individual pistons?
Full engine set—six (6) pistons with matched ring packs, pins, and retainers.
Will it fit my 2007.5–2018 6.7L Cummins?
Yes—when your block is correctly bored/honed to +.020". See Fitment above.
What ring sizes are used?
OE-style ring pack; Mahle supplies matched rings with the kit for reliable seating and oil control.
Specifications for Mahle 224-3732WR.020
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | 224-3732WR.020 |
| Oversize | +.020" (overbore) |
| Engine Compatibility | 2007.5–2018 6.7L Cummins ISB (Ram 2500/3500) |
| Set Contents | (6) pistons, (6) ring sets, pins & retainers |
| UPC | 27067933409 |
| GTIN | 027067933409 |
| Shipping | Free Shipping (ground); optional shipping insurance at checkout |
| Prop 65 | This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Learn more |