CUMMINS
CUMMINS 3975464 OEM FLEXPLATE (DRIVE PLATE) – RAM 5.9L (1989–2007) AUTOMATIC
- SKU:
- CUM3975464
- MPN:
- 3975464
- Shipping:
- Free Shipping
Description
Cummins 3975464 — Flexplate (Drive Plate) for Automatic Transmission
MPN: 3975464 | Also Known As: drive plate, flex plate | Predecessors/Related: 3908524, 3917607, 3917784
Why This Part
- ✓ OE drive plate that mates the crankshaft to the torque converter for reliable starts and smooth power transfer.
- ✓ Direct-fit for Ram 5.9L Cummins automatic applications.
- ✓ Correct ring-gear interface for starter engagement and long service life.
- ✓ Factory balance and bolt pattern for 47RH/47RE/48RE automatics.
Quick Specs
| Type | Flexplate / Drive Plate |
|---|---|
| OE Part # | 3975464 (prev. 3908524, 3917607, 3917784) |
| Transmissions | 47RH / 47RE / 48RE (automatic) |
| Qty Required | 1 per engine (sold individually) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1989–1998 | 5.9L Cummins 12V (6BT) — automatic | Ram 2500/3500 |
| 1998.5–2007 | 5.9L Cummins 24V ISB — automatic | Ram 2500/3500 |
Compatibility Notes: For 1989–1993 trucks, verify torque-converter clearance and bolt pattern; some aftermarket plates for early years differ. Not for manual transmissions. Always confirm by VIN/ESN and transmission.
Often Paired With
- Flexplate Bolts: Cummins 3908522 (OE) or ARP 147-2901 (upgrade)
- Torque Converter Hardware: new bolts/nuts as required
- Rear Main Seal (inspect/replace while trans is out)
What’s In The Box
- (1) Genuine Cummins Flexplate / Drive Plate (3975464)
- Bolts and converter hardware sold separately (see “Often Paired With”).
Install Tips
- Verify crank index and torque-converter bolt circle; use new bolts and thread locker if specified.
- Torque to factory spec in a star pattern; check starter engagement.
- Recheck converter-to-flexplate hardware after initial heat cycle.
FAQ
WILL THIS FIT MY 1989–2007 5.9L CUMMINS RAM?Yes—this OE drive plate covers most 5.9L automatic applications from 1989–2007. For early 1989–1993 trucks, confirm converter clearance and pattern by VIN/ESN.
WHICH TRANSMISSIONS DOES IT WORK WITH?Designed for 47RH/47RE/48RE automatics behind the 5.9L Cummins.
DOES THIS FIT MANUAL TRANSMISSIONS?No—manual setups use a flywheel, not a flexplate.
WHAT ARE THE PREDECESSOR PART NUMBERS?Common earlier numbers are 3908524, 3917607, and 3917784. Order by 3975464 for the current OE part.
SHOULD I REPLACE THE BOLTS?Best practice is to install new flexplate and converter bolts. OE bolt P/N 3908522 (or ARP 147-2901) is commonly used.
Additional Information
Vehicle Year: |
1989,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006,2007 |
Vehicle Make: |
DODGE |
ENGINE: |
5.9L |
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