Genuine Cummins 3959799 Valve Cover Bolt Isolator | ISL9 QSL9
SKU 3959799
In stock: 1 available · Ships from Kelowna BC
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Genuine Cummins 3959799 Valve Cover Bolt Isolator
The Cummins 3959799 is a genuine OEM valve cover bolt isolator, also known as a noise isolator or vibration isolator. Fitted under the valve cover bolt head, it absorbs engine vibrations to reduce valve train noise and protect the valve cover and gasket from wear caused by constant vibration. Sold individually — most engine applications require 8 pieces per valve cover. Genuine Cummins part, stocked in Kelowna, BC and ships Canada-wide.
Specifications
- Part Number: 3959799
- Type: Valve Cover Bolt Isolator (Noise/Vibration Isolator)
- OEM: Genuine Cummins
- Qty per valve cover: 8 typical
- Stocked: Kelowna, BC, Canada
Fitment
- Cummins Engines: ISL CM2150, ISL CM850, ISL9 CM2150 SN, ISL9 CM2250, ISL9 CM2350, ISC CM2150, ISC CM850, ISC8.3 CM2250, QSL9 CM554, QSL9 CM850, QSL9 CM2250, QSL9 CM2350, QSC8.3 CM850, QSB6.7 CM850, ISB6.7, 6C8.3, 6B5.9, N14, NH 855, NT 855
- Hyundai Excavator: R320LC-7A, R320LC-9, R360LC-7A, R360LC-9
- Hyundai Loader: HL770-7A, HL770-9
- Hyundai Forklift: 180D-7E
FAQ
What does the 3959799 isolator do?
It mounts between the valve cover bolt and the valve cover, acting as a rubber/elastomer dampener that absorbs engine vibrations. This reduces valve train noise and prevents premature wear of the valve cover fasteners and gasket.
How many do I need per engine?
Most Cummins valve covers use 8 bolts, so 8 isolators are typically required per valve cover replacement job.
Is this a genuine Cummins part?
Yes. Part number 3959799 is a genuine Cummins OEM part.
Where is this stocked in Canada?
AIM Rentals stocks the 3959799 in Kelowna, BC and ships Canada-wide — same or next business day on in-stock orders.
| Make | Model | Year | Engine / Spec |
|---|---|---|---|
| ["Hyundai R320LC-7A","Hyundai R320LC-9","Hyundai R360LC-7A","Hyundai R360LC-9","Hyundai HL770-7A","Hyundai HL770-9","Hyundai 180D-7E"] | |||
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Ships from Kelowna BC after order review.
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