Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment

Product Details
Customization: Available
Certification: CCC, COP, ISO9001, E-Mark, RoHS, TS16949
Standard Component: Standard Component
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  • Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
  • Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
  • Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
  • Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
  • Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
  • Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
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  • Overview
  • Company Profile
  • Main Product
  • Production Process
  • Packaging & Shipping
  • Certifications
  • International Partners
  • FAQ
Overview

Basic Info.

Model NO.
3976834EA
Technics
Forging
Material
Iron
Type
Filter Housing
Weight
2kg
Shipment
Sea or Air
MOQ
1 PCS
Color
Black or Others
Transport Package
Wooden
Specification
21cm*11cm*10cm
Trademark
zengwei
Origin
USA/China
Production Capacity
500000

Packaging & Delivery

Package Size
21.00cm * 11.00cm * 10.00cm
Package Gross Weight
2.000kg

Product Description

Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Product Overview
The 3976834EA Belt Tensioner Assembly is a critical, dynamically engineered component designed to maintain optimal and consistent tension in an engine's serpentine or accessory drive belt system. It functions autonomously to compensate for belt stretch, thermal expansion, and dynamic loads encountered during engine operation, ensuring unwavering power transmission to essential components like the alternator, power steering pump, and air conditioning compressor. This specific model is manufactured to exact Original Equipment Manufacturer (OEM) specifications, guaranteeing perfect dimensional fitment, bolt pattern alignment, and performance characteristics for a direct replacement. The assembly incorporates a robust base housing a high-precision, pre-lubricated torsion spring that provides the necessary tensioning force. This spring is calibrated to exert a specific, consistent pressure throughout the tensioner's operational arc. A pivotal arm, constructed from high-strength materials, is attached to this spring mechanism and features a integrated idler pulley at its extremity. The entire unit is engineered for durability, with sealed bearings that protect against contaminant ingress and lubricant loss, ensuring smooth rotation and long service life despite exposure to extreme under-hood temperatures, vibration, and contaminants.
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Key Features
Consistent Automatic Tensioning for Enhanced Belt Longevity: The core advantage of this tensioner is its ability to automatically and continuously maintain the ideal belt tension. By compensating for natural belt wear and stretch, it prevents both slippage (which causes noise and accessory under-driving) and overtightening (which leads to premature bearing failure in accessories and the tensioner itself), thereby extending the service life of the entire belt drive system.
Robust Construction and Sealed Bearing for Maximum Durability: The 3976834EA is built with a high-capacity, permanently sealed bearing at its core. This seal is vital for retaining grease and excluding abrasive contaminants and moisture, which are primary causes of premature bearing seizure. This robust construction ensures reliable performance over a long service interval, reducing the risk of sudden failure.
Precision Engineering for Vibration Damping and System Stability: The tensioner is engineered to act as a damping mechanism for the belt drive system. Its precise internal spring and damper design absorbs torsional vibrations and shocks from the crankshaft and accessory loads, resulting in smoother operation, reduced noise, and less wear on all driven components.
Guaranteed Direct OEM Fit for Simplified Installation: Designed as an exact equivalent to the original part, this tensioner ensures a hassle-free replacement process. It bolts directly into the existing engine mounting points without requiring modification, special tools, or complex adjustment procedures, saving significant time and labor costs while ensuring correct installation.
Comprehensive System Protection and Reliability: A properly functioning tensioner is fundamental to vehicle reliability. By ensuring the serpentine belt remains correctly tensioned and routed, the 3976834EA safeguards the operation of critical vehicle systems. Its failure could lead to a loss of battery charging, engine cooling, and power steering, making its reliability directly linked to both vehicle performance and operational safety.
Company Profile
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment

Sichuan Zhengwei Power Technology Co.,Ltd. is a comprehensive and diversified enterprise which established in 2009. Headquartered in No. 388 Huanghe Road, Xindu District, Chengdu, Sichuan Province.The company specializes in diesel generator sets, Cummins engine assembly, Cummins pure parts sales and after-sales service. The company not only has a rich product line, including high-quality diesel generator sets and all kinds of pure accessories, but also provides a full range of after-sales service to ensure the stable operation of customers' equipment. In addition, with strong technical strength and rich experience, the company focuses on the maintenance of all kinds of construction machinery at home and abroad, and can provide customers with efficient and professional mechanical equipment maintenance services, solve all kinds of equipment failures, and ensure the normal production and operation of customers. 
Adhering to the corporate purpose of "Let customers get more value", the company will, provide customers with more and better products and services, and jointly open our better cooperation prospects!
Main Product
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Production Process
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Packaging & Shipping
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Certifications
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
International Partners
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
Complete Belt Drive Tensioner Unit 3976834ea with Integrated Pulley System and Precision-Ground Mounting Surfaces for Perfect Alignment
FAQ
Please enter the title herePlease enter a title here
Q: What's the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 60-90days.
Q: Do you provide after-sales service?
A: Yes, We have a very comprehensive after-sales system.
Q: Can I request a customized parts?
A: Absolutely! We offer tailored attachments.
Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.
 
Q: I'm not sure if this part fits my engine.
A: Please contact our customer service. We will help you identify or find the parts that fit your engine.
Q: I need other numbered parts, but they are out of stock in your store
A: You didn't want this part? Please contact us.If you can't find what you're looking for in store, it doesn't mean we're out of stock, The possible reasons are:
l The product was not put on the shelves in time
l The product link was invalid
l The keyword you searched for was incorrect
l Your part number machine model serial number was incorrect.
l Category restrictions, more optional models cannot be uploaded.
Therefore, please be sure to contact our customer service to inquiry whether the goods you need are actually in stock.l am confident that we can provide the products you need
 
Q: How long does it take to ship after payment?
A: After you make the payment,we usually need 3 business days to stock up and we will ship it to you.lf the parts you purchased are relatively rare, we will need longer time to stock them, but we will inform you via email.

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