Belt Drive Systems
V-Belt 178509 for Cummins N14 NH855 NT855 – High-Strength Oil-Resistant CX Belt
<p>Stop unexpected downtime and costly engine damage from belt slippage or oil degradation — this <strong>V-belt 178509 for Cummins N14/NH855</strong> delivers OEM-equivalent grip and longevity, even under continuous high-load, high-temperature operation.</p> <ul> <li>Oil-resistant CX profile with 22mm top width × 1147mm effective length — the exact geometry required for proper pulley engagement on N14 mechanical and NH855 engines (not just “close enough” metric equivalents)</li> <li>Replaces both 178509 and 76107717 — verified fit for NH220, NH250, NT855, and NTA855 without modification or tensioning guesswork</li> <li>Polyester cord reinforcement + heat-stabilized rubber compound prevents stretch and edge cracking — a known failure point in generic belts after 300–500 operating hours</li> <li>Ships same day from Guangzhou warehouse — no waiting weeks for OEM backorders or risking counterfeit imports</li> </ul>
Lead Time
2-5 Days
Warranty
3-12 Months
Min. Order
1 Piece
Ships To
120+ Countries
Request a Quote
Response within 24 hours
Product Details
Product Specifications
| Parameter | Details |
|---|---|
| Part Name | V-Belt |
| Part Number (OEM Reference) | 178509, 76107717 |
| Brand Compatibility | Cummins |
| Machine Model Fitment | N14 MECHANICAL, NH 855, NT 855, NH220, NH250, NTA855 |
| Material | High-quality rubber with embedded polyester cords |
| Dimensions | 22 mm top width × 1147 mm effective length (1060 mm inside length) |
| Design Type | CX profile V-belt |
| Condition | New Aftermarket |
| Warranty | 3–12 months against manufacturing defects |
| Packaging | Original retail packaging with protective foam and sealed carton |
Compatible Models
| Brand | Applicable Models |
|---|---|
| Cummins | N14 MECHANICAL, NH 855, NT 855, NH220, NH250, NTA855 |
Frustrated by Belt Failures on Your Cummins N14 or NH855? Replace with Genuine-Spec CX Belt 178509
Every unplanned engine shutdown costs your operation thousands in downtime—especially when a $50 V-belt failure halts a $2M excavator on a tight schedule. Counterfeit or non-oil-resistant belts crack, slip, or snap within weeks under high-heat, oil-splashed environments. OEM replacements take 3+ weeks to arrive and cost up to 40% more. You need reliability today—not promises for next month.
OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse
This Cummins N14 V-belt is manufactured in ISO-certified facilities and undergoes pre-shipment performance testing for torque transmission stability, oil resistance, and dimensional accuracy. Designed specifically for mechanical governor engines like the N14 and NH855, it delivers consistent power transfer during continuous-duty cycles—critical for mining haul trucks, quarry loaders, and marine auxiliary drives. With 10 years of global export experience and 10,000+ SKUs in stock, XUNPO ensures you get the right CX belt—fast.
Where This Part Works
This oil-resistant V-belt operates reliably in extreme conditions: construction sites with ambient temps above 45°C, quarries where engine oil mist coats drive components, port equipment exposed to salt air and vibration, and demolition rigs running at full load for 12+ hours daily. In these settings, standard belts degrade rapidly—leading to slippage, overheating, and premature crankshaft pulley wear. A true Cummins NH855 V-belt must resist swelling and hardening when exposed to diesel engine oil, which this 178509 V-belt does by design.
Engineering Details That Matter
The 22mm top width and precise 1147mm effective length ensure full contact with original pulley grooves—eliminating misalignment-induced edge wear. Its CX profile geometry matches OEM specifications exactly, enabling optimal load distribution across the belt’s cross-section. The high-tensile polyester cord reinforcement prevents stretch under peak torque loads, maintaining tension stability across temperature swings from –20°C to +100°C. Oil-resistant rubber compound meets ASTM D471 standards for immersion resistance—critical for engines where oil splash is unavoidable near the front cover. Dimensional tolerance is held to ±0.5mm, guaranteeing drop-in fit without pulley rework or tensioner adjustment.
The Real Cost of Wrong Parts
A substandard V-belt may cost 20% less—but causes 3× more failures within 3 months, triggering repeat labor charges, tow fees, and contractual delay penalties. Slippage reduces alternator output and coolant pump speed, risking overheating and catastrophic engine damage. OEM-equivalent parts like this 178509 V-belt reduce total cost of ownership (TCO) by extending service intervals from 2,500 to 5,000 operating hours—verified through real-world fleet data from 12 Southeast Asian mining operators. Choosing a part that meets genuine-spec CX profile belt standards for NH220/NH250 isn’t about preference—it’s risk mitigation backed by ISO 9001 production control and third-party material certification.
Why Customers Trust XUNPO
We partner exclusively with ISO 9001-certified factories and perform incoming material inspection on every batch. Every V-belt undergoes 100% pre-shipment dynamic tension and oil-immersion testing to confirm OEM-equivalent performance. All parts carry a 3–12 month warranty covering manufacturing defects—no questions asked. With 10 years’ experience serving customers in 120+ countries—from U.S. rental fleets to West African quarry operators—we’ve built trust through consistency. Our 20+ technical specialists verify part compatibility within 2 hours using OEM service manuals and live machine photos. And because we hold 10,000+ commonly used parts—including this Cummins N14 V-belt—in our Guangzhou warehouse, you get reliable delivery in 2–5 working days.
Packaging & Shipping
- Individually sealed in moisture-resistant polybag with rigid cardboard backing and custom-molded foam cradle
- In-stock items ship within 2–5 working days after payment confirmation
- Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight—selected per order volume and urgency
- Real-time tracking provided from warehouse dispatch to final delivery
- MOQ is 1 piece—designed for urgent field repairs and small-fleet maintenance
Get Your Cummins N14 V-Belt Now
Your engine shouldn’t wait. Send us your part number (178509 or 76107717), machine model (e.g., N14 MECHANICAL), quantity, and destination—we’ll reply with a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before bulk ordering. Every day your equipment sits idle, it loses revenue. Act now to restore uptime.
Frequently Asked Questions
Q: Is this an original Cummins part or an aftermarket replacement?
A: This is an OEM-equivalent aftermarket part, produced in ISO 9001-certified factories to match Cummins’ original engineering specifications for the N14 and NH855 engines.
Q: How do I confirm this V-belt fits my specific engine?
A: Provide your exact engine model (e.g., N14 MECHANICAL or NH250) and serial prefix—we’ll verify compatibility using Cummins service documentation and respond within 2 hours.
Q: What is the warranty coverage?
A: 3–12 months against manufacturing defects. If the belt fails due to material or workmanship issues, we replace it free of charge.
Q: What is the minimum order quantity?
A: Just 1 piece. We support urgent repair needs with no volume pressure.
Q: How long until shipment?
A: In-stock items ship within 2–5 working days. Express options available for time-critical deliveries.
Q: Can I receive a sample before placing a bulk order?
A: Yes—first-time customers may request a sample for physical testing and fit verification.
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
Compatible Brands
Our parts are engineered to meet or exceed OEM specifications. Please provide your machine model number and serial number when inquiring to confirm exact compatibility.
How to Confirm Compatibility
-
1
Find Your Machine Model
Locate the model plate on your machine, typically near the cab or engine compartment.
-
2
Note the Part Number
Check your parts manual or existing part for the OEM part number.
-
3
Contact Our Team
Our technical team verifies compatibility within 2 hours. Send us the details via the inquiry form or WhatsApp.
Shipping Information
Express Shipping
DHL, FedEx, UPS -- 3-7 business days worldwide
Sea Freight
Cost-effective option for bulk orders -- 15-35 days
Real-Time Tracking
Tracking number provided after shipment. 24/7 support available.
Warranty Policy
All parts come with manufacturer warranty. Duration varies by product category.
- Manufacturing defects covered in full
- Free replacement or full refund for defective parts
- Post-delivery technical support included
- Sample testing available for first-time buyers
ISO Certified Quality
All parts sourced from ISO-certified factories with strict QC processes and material traceability.
Competitive Pricing
Save 30-50% vs OEM prices without compromising quality. Transparent pricing with no hidden fees.
Fast 2-5 Day Shipping
Large Guangzhou warehouse with 10,000+ SKUs in stock. Most orders ship within 2-5 business days.
10+ Years Experience
20+ professionals with deep technical knowledge serving 1,000+ clients across 120+ countries.
24/7 Technical Support
Dedicated support team available around the clock. Part verification within 2 hours of inquiry.
Global Reach
Flexible shipping solutions including express and sea freight to 120+ countries with real-time tracking.
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Need a Custom Quote?
Our technical team responds within 24 hours. MOQ 1 piece. Ships to 120+ countries from our Guangzhou warehouse.