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SKU:
NLT2T01193
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Cummins Oil Dipstick & Gauge 3963443 3974757 – B/ISB/ISC/ISL/QSB/QSC/QSL Engines
$135.59
In Stock
$135.59
Sale price
$135.59
Regular price
This engine oil dipstick and gauge assembly fits Cummins applications that use part numbers 3963443 or 3974757, including multiple B-series, ISB, ISC, ISL/L9, QSB, QSC and QSL engine families.
Estimated delivery between
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
| Make / Family | Applications |
|---|---|
| Cummins engines | 4B3.9, 6B5.9, B4.5, B6.7, ISB, ISC, ISL/L9, QSB3.3, QSB6.7/QSB7, QSC8.3, QSL9 and related applications using the listed gauge number |
Product Overview
A dipstick is only useful when its calibrated length matches the engine, oil pan and dipstick tube. This replacement is intended to restore a missing, damaged or difficult-to-read oil level gauge so routine oil checks can be made before startup and during service.
Research on 3963443 and 3974757 shows the number is used across several Cummins industrial and mobile engine families. Because oil-pan and tube configurations can vary within the same engine family, matching the number on the original gauge or parts catalog is more reliable than ordering from engine displacement alone.
Key Features & Performance
- Restores a physical engine-oil level check at the dipstick tube
- Clear MIN/MAX-style gauge function for routine service checks
- Useful replacement when the original blade, handle or seal is damaged or missing
Technical Details
- Product type: engine oil dipstick / oil level gauge
- Application family: Cummins B/ISB/ISC/ISL, QSB/QSC/QSL and related engines
- Fitment should be confirmed by existing dipstick or engine parts record
Replaces Part Numbers
- 3963443
- 3974757
Frequently Asked Questions
Q: Why does the part number matter on a dipstick?
A: Different oil pans and gauge tubes can change the required calibrated length even when the base engine family is similar. Match 3963443 or 3974757 whenever possible.
Q: Is this a genuine Cummins part?
A: This listing is for a replacement part. Use the listed Cummins reference numbers to confirm the intended application.
Verify the original gauge number and engine/oil-pan configuration before ordering.