Product Description
The CUMMINS 3923128 OEM ENGINE OIL DIPSTICK is the genuine replacement oil level gauge for many 1996–1998 Dodge Ram 2500/3500 trucks equipped with the 5.9L 12-valve Cummins (6BT). If your factory plastic handle is cracked, faded, or missing, this blade-style dipstick restores accurate oil level readings and keeps your 12-valve ready for work and towing.
This is not a generic aftermarket stick. It’s a Cummins genuine part designed to work with the correct OE dipstick tube to ensure the FULL and ADD marks line up with Cummins service data. Using the wrong stick or tube can give false readings, which risks running low on oil or overfilling and aerating the oil at high RPM.
Key Features
- Genuine Cummins OEM engine oil dipstick – part number 3923128
- Direct-fit replacement for many 1996–1998 Ram 5.9L 12-valve (2500/3500)
- Blade-style dipstick with clearly stamped oil level markings
- Engineered to work with the proper Cummins dipstick tube for accurate readings
- Helps protect your 5.9L 12V from low-oil damage under load and towing
- Cross-reference: commonly replaces Mopar 4883345 in many applications
Fitment Details
This Cummins 3923128 dipstick is primarily cataloged for:
- 1996–1998 Dodge Ram 2500/3500 with 5.9L 12-valve Cummins diesel (6BT)
- Configurations: 4x2 and 4x4, manual and automatic transmissions
For the most accurate oil level readings, pair this dipstick with the correct OE tube assembly:
- Matching dipstick tube: Cummins 3905801 OEM Oil Gauge Tube (Dipstick Tube) – 5.9L 12V (1994–1998)
- Tube clip / retainer: Cummins 3923016 OEM Clip – Oil Level (Dipstick) Tube – 5.9L 12V (1994–1998)
Important: Always confirm fitment by VIN or engine serial number (ESN), especially on industrial B-series or swapped applications. Some early 12-valve trucks use a different OE dipstick (for example, Cummins 3928740 for many 1994–1995 Ram 5.9L 12V). If you have an earlier 12-valve truck, see:
- Alternative year-range dipstick: Cummins 3928740 OEM Engine Oil Dipstick – 5.9L 12-Valve (1994–1995)
Cross-Reference & Related Cummins Parts
- Primary Cummins Part Number: 3923128
- Common OE Cross-Reference: Mopar 4883345 (check by VIN/ESN)
- Alternative dipstick for earlier 12V years: Cummins 3928740
- Compatible dipstick tube: Cummins 3905801 Oil Gauge Tube (Dipstick Tube)
- Tube clip / retainer: Cummins 3923016 Dipstick Tube Clip
- Complementary top-end component: Cummins 3928405 Valve Cover w/ Oil Fill – 4BT/6BT 5.9L 12V
Specifications
| Specifications for cummins 3923128 | |
|---|---|
| Brand | Cummins Genuine Parts |
| Part Number | 3923128 |
| Part Type | Engine Oil Dipstick (Oil Level Gauge) |
| Engine Application | 5.9L 12-Valve Cummins (6BT) – many 1996–1998 Ram 2500/3500 |
| UPC | 635393559394 |
| GTIN | 635393559394 |
| Cross Reference | Mopar 4883345 (verify by VIN/ESN) |
| Associated Cummins Components | Dipstick Tube 3905801, Tube Clip 3923016, Alternate Dipstick 3928740 (1994–1995), Valve Cover 3928405 |
| E-Codes / Emissions | Not applicable (non-emissions component) |
| Shipping Weight | Approx. 0.02 lb (0.01 kg) |
| Typical Package Dimensions | Approx. 10 in x 1 in x 1 in (shipping tube or sleeve) |
| Country of Origin | Not specified by manufacturer |
| Prop 65 | Yes – Cancer and Reproductive Harm. See www.P65Warnings.ca.gov. |
Installation & Usage Notes
- Verify you have the correct dipstick tube installed before comparing oil level marks.
- Check oil level on level ground, with the engine off and oil allowed to drain back to the pan.
- For hard-working or tuned trucks, monitor oil level frequently during towing and heavy use.
FAQ
How do I know if Cummins 3923128 is the right dipstick for my truck?
For most 1996–1998 Dodge Ram 2500/3500 trucks with the 5.9L 12-valve Cummins, 3923128 is the correct OEM dipstick when used with the matching OE tube. Always confirm by VIN or engine serial number and verify that your tube part number matches the recommended Cummins tube (such as 3905801).
Can I use this dipstick with any 5.9L 12-valve tube?
No. The FULL and ADD marks are calibrated to a specific dipstick tube depth and angle. Mixing mismatched aftermarket tubes and sticks can give false readings. For best results, pair 3923128 with the correct Cummins tube, such as 3905801, and confirm fitment by VIN/ESN.
What if my truck is a 1994–1995 or an earlier 12-valve?
Many 1994–1995 trucks use a different OEM dipstick (commonly Cummins 3928740). Earlier 1989–1993 12-valve trucks and some industrial B-series applications also use other part numbers. If your truck is a different year range, compare your existing stick and tube or consider Cummins 3928740 and verify by VIN/ESN.
Do I need to replace the dipstick tube when I install this?
If your existing tube is bent, rusted, or not an OEM Cummins part, we strongly recommend replacing it with the matching OE tube 3905801 and the correct tube clip 3923016 to maintain proper depth and sealing.
Is this a genuine Cummins part or an aftermarket replacement?
This listing is for a genuine Cummins OEM dipstick. CPP Diesel focuses on stocking real Cummins parts so your 5.9L 12-valve maintains factory-correct oil level readings, durability, and reliability.
