12V 10T Starter Motor 4996706 for Cummins Engines – Direct Replacement

Product Specifications

Compatible Models

Frustrated by Starter Failures on Cummins Engines? Get the Reliable 4996706 Starter Motor for 4B3.9, QSB6.7 and More

Every hour your excavator or generator set sits idle due to a failed starter costs hundreds — even thousands — in lost productivity and rental penalties. Counterfeit 4996706 starter motors fail within weeks, often during peak operation. OEM replacements take 3+ weeks and cost up to 45% more. And sourcing correct starters across multiple Cummins engine families — from B4.5 to QSB6.7 — wastes hours cross-referencing part numbers.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This 12V 10T starter motor 4996706 is engineered to meet Cummins performance standards — not just fit. Built in ISO-certified factories and tested before shipment, it delivers consistent cranking torque under cold-start conditions common in mining, construction, and marine applications. With 10 years’ experience supplying Cummins aftermarket parts globally, XUNPO ensures compatibility across high-utilization engines used in excavators, gensets, and heavy-duty trucks.

Where This Part Works

The 4996706 starter motor powers critical equipment in demanding environments: quarry loaders operating at -20°C to +50°C, port container handlers running 20+ hours daily, and demolition excavators subject to constant vibration and dust ingress. In these settings, starter reliability directly impacts uptime — one failure can delay a $2.4M infrastructure project by 48+ hours. This 12V starter motor for Cummins engine is designed for repeated high-load engagement without thermal degradation.

Engineering Details That Matter

The armature core uses precision-balanced cold-rolled silicon steel laminations to minimize eddy current loss and maximize torque density. Copper windings are insulated to Class H (180°C) rating, ensuring stable output after 15+ consecutive cranks. The 10T pinion gear features case-hardened 20MnCr5 steel with micro-polished tooth profiles — critical for meshing accuracy with flywheel ring gears on ISB6.7 and QSB4.5 engines. Sealed ball bearings (ABEC-3 grade) prevent contamination from oil mist and fine particulates. All external surfaces undergo zinc-nickel electroplating (≥12μm thickness) for salt-spray resistance exceeding 500 hours per ASTM B117.

The Real Cost of Wrong Parts

A low-cost starter may save $35 upfront — but if it fails after 200 starts, you pay again for labor, downtime, and emergency shipping. Industry data shows non-OEM-equivalent starters cause 3.2x more repeat failures within 6 months. Using an untested 4996706 starter motor for Cummins QSB6.7 risks damaging the flywheel ring gear or solenoid circuit — repair costs exceed $1,200. Our ISO-aligned production and pre-shipment bench testing reduce total cost of ownership (TCO) by eliminating unplanned maintenance and extending service intervals.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually sealed in anti-static bag, cushioned with molded EPE foam, packed in double-walled corrugated carton with printed part number and engine compatibility
• 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 customer requirement
• Real-time tracking provided from warehouse dispatch to final delivery
• MOQ: 1 piece — supporting urgent field repairs and small fleet operators

Get Your 4996706 Starter Motor Now

Your machine isn’t generating revenue while waiting. Send us your engine model (e.g., QSB6.7 CM2250 EC), quantity, and destination — we’ll email a competitive quote within 24 hours. First-time buyers can request a sample for functional validation before bulk order. With Guangzhou warehouse stock, your replacement starter ships fast — so your equipment gets back to work.

Frequently Asked Questions