<p>Minimize equipment downtime with this precision-engineered <strong>Cylinder Liner Sleeve 3904166</strong> for Cummins 4B3.9, 6B5.9, ISB, and QSB engines. Crafted to ISO standards, it ensures optimal piston alignment and heat dissipation, extending engine lifespan while maintaining OEM-equivalent performance.</p><ul><li>Direct replacement for part numbers 3904166, DS-3904166, and DS-3904166OS</li><li>Precision honed surface finish reduces oil consumption and enhances ring seal</li><li>Fits a wide range of Cummins models including B3.3, G5.9, ISBE, and QSB6.7</li></ul>
| Parameter | Details |
|---|---|
| Part Name | Cylinder Liner Sleeve |
| Replacement Part Number | 3904166, DS-3904166, DS-3904166OS, DS3904166OS, DS3904166 |
| Compatible Engine Brand | Cummins |
| Condition | New Aftermarket |
| Quality Certification | ISO-Certified |
| Warranty | 3-12 months against manufacturing defects |
| Brand | Applicable Engine Models |
|---|---|
| Cummins | 4B3.9, 6B5.9, B3.3, B3.9-V110, B5.9 G, B5.9 GAS PLUS CM556, B5.9 LPG PLUS CM556, B5.9-C, B5.9-M330, G5.9, G5.9 CM558, ISB, ISB CM2150, ISB CM550, ISB CM850, ISB5.9G CM2180, ISB6.7 CM2250, ISB6.7 CM2350 B101, ISBE CM800, ISBE4 CM850, QSB3.9 30 CM550, QSB4.5 30 CM550, QSB4.5 CM850(CM2850), QSB5.9 30 CM550, QSB5.9 44 CM550, QSB5.9 CM550, QSB5.9 CM850, QSB5.9480H0, QSB5.9G, QSB6.7 CM2250, QSB6.7 CM850(CM2850) |
Every hour your equipment sits idle costs money—especially when waiting 2-4 weeks for overpriced OEM cylinder liners. Worse, installing counterfeit sleeves can lead to premature failure and costly secondary engine damage. With 10 years serving global fleet managers, we know the frustration of sourcing quality parts that fit multiple Cummins models like 4B3.9 and 6B5.9.
Our Cylinder Liner Sleeve 3904166 solves these headaches with ISO-certified manufacturing that matches OEM specifications. As part of our 10,000+ SKU inventory, this liner is stocked in our Guangzhou warehouse, ready to ship within 2-5 working days. Whether you're repairing a construction excavator's ISB engine or a mining truck's QSB5.9, we provide the exact fit you need without the OEM markup.
This cylinder liner sleeve performs in the toughest environments—from high-hour construction equipment operating in dusty job sites to mining machinery enduring constant vibration. It forms the critical interface between piston and engine block, maintaining compression and heat transfer in Cummins 4B3.9, 6B5.9, ISB, and QSB engines. Proper liner selection directly impacts oil consumption, engine power, and overall reliability.
Manufactured to precise tolerances, our 3904166 liner ensures proper piston clearance and heat dissipation. The high-strength material resists wear from combustion gases and piston movement, while the honed inner surface promotes optimal oil retention for reduced friction. Each unit undergoes pre-shipment testing to verify dimensional accuracy, ensuring seamless installation and compatibility with original Cummins components. Unlike cheaper alternatives, our sleeves maintain roundness under thermal stress, preventing premature failure.
Opting for uncertified cylinder sleeves may save upfront, but the hidden costs add up fast. A failed liner can cause cylinder scoring, leading to $5,000+ in engine repairs and weeks of downtime. Our ISO-certified 6B5.9 Cylinder Sleeve delivers OEM-equivalent durability at 30-50% lower cost, reducing total ownership expenses. With a 3-12 month warranty, you avoid the risks of counterfeit parts that typically last only half as long as genuine-quality replacements.
We partner exclusively with ISO-certified factories and enforce rigorous incoming material inspections. Each cylinder liner undergoes performance testing before shipment to ensure OEM-equivalent quality. With 10 years of export experience serving 120+ countries, our 20+ technical experts provide accurate part verification within 2 hours. Our Guangzhou warehouse stocks thousands of常用 parts, supporting urgent maintenance needs with 1-piece minimum orders and flexible shipping options.
Don't let equipment downtime eat into your profits. Send us your part number, engine model, and quantity today for a competitive quote within 24 hours. First-time clients can request sample testing to verify quality. With our ready stock and fast shipping, you'll minimize downtime and get your Cummins-powered machinery back on the job quickly.
Q: Is this a genuine OEM part or aftermarket replacement?
A: This is an OEM-equivalent aftermarket part, manufactured by ISO-certified factories to match original specifications.
Q: How can I confirm this liner fits my specific Cummins engine?
A: Provide your engine model and serial number, and our technical team will verify compatibility within 2 hours.
Q: What warranty coverage do you offer?
A: We provide a 3-12 month warranty against manufacturing defects, with free replacement for qualified issues.
Q: What is the minimum order quantity?
A: We accept minimum orders of 1 piece to support emergency repair needs.
Q: How quickly can you ship this cylinder liner?
A: In-stock items ship within 2-5 working days via express, air, or sea freight based on your urgency.
Q: Can I request a sample before placing a bulk order?
A: Yes, first-time clients can request sample testing to verify quality and compatibility.
Ready to order or need a quote?
Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 13316055942 | Email: talos@xunpojx.com
Send us your requirements -- part number, machine model, quantity, and destination. Our team responds within 24 hours with a competitive quote.
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