Diesel Engine Part 3936213 Belt Tensioner Applicable Excavator 6CT8.3 6D114 Powertrain
The 3936213 single-groove belt tensioner is a key component of the accessory drive system in engines such as the 6CT8.3 and 6D114 series. It maintains the correct tension on the engine's serpentine belt, ensuring stable operation of generators, compressors, and other accessories. This tensioner features a compact structure and high wear resistance, effectively reducing belt slippage and extending the life of the belt and related accessories. It is a crucial guarantee for the efficient and reliable operation of medium and heavy-duty diesel engines.
| Part Number |
3936213 |
| Type |
Single Groove Belt Tensioner |
| Compatible Replacement Part Numbers |
5259022, 3976831… |
| Material |
High-strength Metal / Wear-resistant Bearing Assembly |
| Installation Location |
Engine Front Accessory Drive Belt System |
| Function |
Automatically adjusts belt tension, stably drives accessory movement |
Applicable Engines:6C, ISB, QSB, 4B3.9, B4.5, 6B5.9, B6.7, 4B, 6B, ISC, QSC, ISL, QSL
Installation and Maintenance
Precise tensioning design maintains stable belt tension, preventing slack or slippage.
Compatible with multiple 6CT and 6D114 engines, offering wide applicability.
Made with highly wear-resistant materials, improving pulley life and durability.
Easy installation; can directly replace standard-compliant original parts.
3936213 Single Groove Belt Tensioner Appearance View

3936213 Tensioner Bearing Close-up

Excavator Engine Power System Parts 3936213 Belt tensioner

3936213 Belt tensioner, suitable for 6D114 and 6CT8.3



Frequently Asked Questions
Q1: What is your main products?
A1: We are specialized in the excavator engine spare parts, for example Main cylinder block, cylinder head, crankshaft, Engine assembly, piston, cylinder liner, piston ring, camshaft, connecting rod, oil pump, water pump, valve series products, movement, etc. almost all parts of the entire engine.
Q2: Do you test all products before shipping?
A2: Yes, we conduct 100% testing before shipping.
Q3: Which engine models is this Single Groove Belt Tensioner compatible with?
A3: This product is designed for specific diesel engine models. If you can provide the engine model or original part number, we can confirm compatibility before shipping to avoid incompatibility issues.
Q4: Can you provide cross-reference information for OEM part numbers?
A4: Yes, we support original part interchange. Please provide the original part number, and we will verify the replacement part accordingly.
Q5: What should I do if there is a problem with the product?
A5: Our products undergo professional testing and are of very stable quality. If you do find any problems, please contact us. We have a professional after-sales team to help you solve the problem.
Why Choose Us?
• Over 20 years of experience specializing in construction machinery, engines, and parts – with stable experience supplying mainstream brands and models.
• Extensive experience in model matching enables us to provide customers with accurate parts selection, reducing procurement risks.
• A long-term, stable, and reliable supply system ensures reliable product sourcing and meets continuous procurement needs.
• For product information or quotations, our professional team will provide you with detailed answers immediately upon receiving your request.