Valve Cover Gasket 3959798 For ISC ISL QSC 8.3C 6B5.9 6C8.3 ISBE4 Engine
Keywords: 3959798 valve cover gasket, ISC ISL valve chamber gasket, 6B5.9 6C8.3 engine cover seal, diesel engine valve cover rubber gasket, construction machinery engine overhaul gasket parts, aftermarket valve cover sealing gasket
Product Overview
Valve Cover Gasket Part No.3959798 is high‑quality rubber sealing gasket for engine valve cover, compatible with ISC, ISL, QSC 8.3C, 6B5.9, 6C8.3, ISBE4 series diesel engines used for excavators, heavy‑duty trucks and industrial equipment. It is installed between valve cover and cylinder head, sealing valve chamber to prevent engine oil leakage and avoid dust, water and debris entering into valve train system. This replacement gasket solves typical faults such as oil seepage around valve cover, oil leakage, dirt contamination inside valve mechanism caused by rubber aging, hardening, cracking and compression set under long‑time high‑temperature operation. Produced according to OEM dimension specification for engine maintenance and overhaul work.
Detailed Specifications
| Item |
Details |
| Part Number |
3959798 |
| Product Name |
Valve Cover Gasket |
| Fit Engine |
ISC, ISL, QSC 8.3C, 6B5.9, 6C8.3, ISBE4 Diesel Engine |
| Fit Application |
Excavator, heavy‑duty truck and industrial machinery engine repair & overhaul |
| Function |
Seal valve cover, prevent engine oil leakage and external impurities entering valve chamber |
| Type |
Aftermarket New Engine Sealing Spare Parts |
| Quality Standard |
OEM size tolerance, high temperature and oil‑resistance performance test before shipment |
| MOQ |
1 UNIT |
| Packing |
Independent dust‑proof plastic wrapping + export outer carton |
| Price Term |
Negotiable, EXW / FOB / CIF terms are supported |
| Delivery Time |
3‑7 days for in‑stock items |
Key Features & Advantages
- ✅ Exact OEM outline shape, thickness and hole position, perfect fit for corresponding valve cover and cylinder head mating surface.
- ✅ Premium heat‑resistant rubber material, excellent oil‑resistance, anti‑aging and stable compression‑recovery performance.
- ✅ Resist continuous high‑temperature engine compartment environment, not easy to harden, crack or lose sealing elasticity.
- ✅ Effectively eliminate valve cover oil‑leakage failure, keep internal valve train clean and normal lubrication condition.
- ✅ Each gasket passes dimension and appearance inspection before factory delivery.
- ✅ Important sealing spare part for engine valve cover service and complete engine overhaul project.
Application Scope
Fit Equipment: Excavators, heavy‑duty trucks and industrial machinery equipped with ISC ISL QSC 8.3C 6B5.9 6C8.3 ISBE4 diesel engine ‑ Widely used for machinery repair workshops, vehicle fleet maintenance and engine overhaul projects.
Our Company Advantage
We are professional supplier of full‑range construction machinery spare parts, supplying hydraulic parts, engine parts, electrical parts, seal kits and complete overhaul kits. ‑ Large ready stock for various machinery spare parts ‑ Factory‑direct wholesale competitive price ‑ Mixed‑order & one‑stop spare‑parts procurement supported ‑ Professional part‑number matching technical support service
Packaging & Shipping
Independent plastic dust‑proof packaging, avoid scratch and extrusion deformation in transit ‑ Export‑grade outer carton for safe sea and land transportation ‑ Multiple shipping options: sea freight, air freight, international express for small trial orders ‑ Export documents such as Commercial Invoice, Packing List can be provided.
Contact Us
If you need more excavator spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.
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