Keep your Cummins 6C8.3, B6.7, or ISB6.7 engine running strong with our high durability Alternator Pulley, designed to deliver reliable power transfer and minimize unexpected downtime. This precision-engineered replacement fits seamlessly with part numbers 3926858, 3965146, and 3965147, ensuring a perfect match for your equipment’s specifications.
| Parameter | Details |
|---|---|
| Part Name | Alternator Pulley |
| Replacement Part Numbers | 3926858, 3965146, 3965147 |
| Compatible Engine Brand | Cummins |
| Condition | New Aftermarket |
| Warranty | 3-12 months against manufacturing defects |
| Brand | Applicable Engine Models |
|---|---|
| Cummins | 6B5.9, 6C8.3, B3.3, B4.5, B6.7 (CM2350 B121B, CM2350 B136C, CM2350 B157C, CM2450 B155B), B6.7N CM2380 B150B, B6.7O CM3580 B193B, C GAS PLUS CM556, G5.9, G8.3, G8.3 CM558, GTA8.3 CM558, ISB (CM2150, CM2150 E), ISB6.7 (CM2250, CM2350 B101, G CM2180 B118), ISBE4 CM850, ISC (CM2150, CM554, CM850), ISC8.3 (CM2250, G CM2180 C101), ISL (CM2150, CM554, CM850, G CM2180), ISL9 (CM2150 SN, CM2250, CM2350 L101, CM2350 L111), ISLE4 CM850, L GAS PLUS CM556, L8.9 L121, L9 (CM2350 L116B, CM2350 L119B, CM2350 L120C, CM2350 L129C, CM2350 L133C, CM2450 L126B, CM2450 L143C), L9N (CM2380 L124B, CM2380 L130B), N14 MECHANICAL, QSB3.3 CM2150, QSB6.7 (CM2250, CM2250 B128, CM2250 EC, CM2350 B105, CM2350 B112, CM2350 B130, CM850(CM2850), M CM2250), QSC8.3 (CM554, CM850(CM2850)), QSC9 CM2250/QSL9 CM2250, QSJ8.9 G, QSL9 (CM2250, CM2250 L115, CM2350 L102, CM2350 L107, CM2350 L118, CM554, CM850(CM2850), G CM558, M CM2250 L106) |
Equipment downtime costs construction and mining operations thousands of dollars daily. A failing alternator pulley can disable your Cummins-powered machinery, leaving projects stranded. Many operators face the frustration of waiting 2-4 weeks for overpriced OEM parts or discovering counterfeit components that fail prematurely, causing secondary damage to the alternator and electrical system.
Our high durability alternator pulley is engineered to solve these challenges. As a professional machinery parts supplier with 10 years of global export experience, we maintain a large inventory of 10,000+ commonly used parts in our Guangzhou warehouse. This Cummins alternator pulley meets OEM specifications, undergoes pre-shipment performance testing, and is ready to ship within 2-5 working days—no more extended downtime waiting for parts.
This alternator pulley plays a vital role in power generation systems for Cummins engines operating in demanding environments. Whether your equipment is working on construction sites, mining operations, port logistics, or agricultural fields, the pulley drives the alternator to maintain battery charge and power electrical systems. In high-vibration, high-temperature conditions, a reliable pulley ensures consistent alternator performance and prevents unexpected shutdowns.
Our alternator pulley is built to withstand the rigors of heavy machinery operation. The precision-machined design ensures proper belt alignment, reducing wear on both the pulley and drive belt. Constructed from high-strength materials, it resists deformation under load and maintains dimensional stability across temperature fluctuations. The exacting manufacturing tolerances guarantee perfect compatibility with Cummins 6C8.3, B6.7, and ISB6.7 engines, ensuring straightforward installation and reliable performance.
Choosing a cheap, untested alternator pulley may save money upfront but often leads to higher long-term costs. Poorly made pulleys can cause belt slippage, resulting in insufficient charging and battery failure. Misalignment from imprecise manufacturing can damage the alternator bearings, requiring expensive repairs. Our ISO-certified manufacturing process ensures each pulley meets strict quality standards, delivering a product with a service life comparable to OEM parts at a fraction of the cost.
We partner exclusively with ISO-certified factories and implement rigorous quality control processes, including incoming material inspection and pre-shipment testing. Our 20+ team of industry professionals provides expert technical support, with part verification responses within 2 hours. We stand behind our products with a 3-12 month warranty against manufacturing defects. With 10 years of experience serving 120+ countries, we understand the critical nature of your equipment and the importance of reliable parts supply.
Don't let a failed alternator pulley keep your equipment offline. Send us your part number, engine model, and required quantity to receive a competitive quotation within 24 hours. First-time clients can request sample testing to verify quality. With our ready inventory and fast shipping, you can minimize downtime and get back to work quickly.
Q: Is this an OEM part or aftermarket replacement?
A: This is an OEM-equivalent aftermarket part, manufactured by ISO-certified factories to meet original specifications.
Q: How can I confirm this pulley fits my Cummins engine?
A: Provide your engine model and serial number, and our technical team will verify compatibility within 2 hours.
Q: What warranty coverage is provided?
A: We offer a 3-12 month warranty against manufacturing defects, with free replacement or refund if quality issues arise.
Q: What is the minimum order quantity?</
Not sure if this part fits your machine? Send us your machine model number and serial number via WhatsApp or email -- our specialists will verify compatibility within 2 hours.
Fill in your details and we'll respond within 24 hours with a competitive quote.
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