Keep your Cat D9R productive in the harshest mining and heavy earthmoving conditions with our D9R Chain Sprocket, a hot-selling aftermarket replacement engineered to meet OEM specifications. The D9R’s elevated sprocket design is critical to its legendary performance — it transfers implement shock loads to the mainframe, isolates final drives from harsh impacts, and works together with the fully suspended undercarriage to increase traction while creating a smoother ride . Our sprocket segment is built to deliver exactly that: reliable power transmission, stable track engagement, and extended service life under continuous heavy load.
Key Specifications:
- Compatible Models: Caterpillar D9R, D9N, D9T series bulldozers
- Common Part Numbers: 9W-2312, 7T1247, 102-6676, 160-4926, 160-4927, 173-0949, CR4686, CR4687
- Type: Segmented drive sprocket (25-tooth, 30-bolt hole configuration)
- Material: Forged 40Mn2 / 50Mn / 35MnB high-strength alloy steel — selected for superior impact resistance and wear performance
- Surface Hardness: HRC 52–58
- Quenching Depth: 8–12 mm — uniform deep-hardened layer for extended wear life
- Manufacturing Process: Precision forging + heat treatment + CNC machining + quench-tempering
- Design: Optimized tooth profile for perfect meshing with D9R track chain assembly — effectively prevents chain jumping and abnormal tooth breakage
- Certification: ISO 9001:2000
- Warranty: 12 months / up to 2,000 working hours
- Color: Black or yellow (custom colors available)
Why Choose Our Hot-Sale D9R Sprocket?
Forged, Deep-Hardened Teeth: Our sprocket segments are precision forged from 40Mn2/50Mn alloy steel, then quench-tempered to HRC 52–58 with an 8–12 mm deep hardened layer. This combination of tough core and hard surface means the teeth resist both abrasive wear and impact fracture — even in open-pit mining and quarry applications where D9R dozers work around the clock .
- Perfect OEM Interchangeability: Manufactured to original Caterpillar dimensions for direct, modification-free installation. Standard OEM part dimension means our sprocket segment is directly interchangeable with genuine Cat spare parts .
- Stable Track Engagement: Optimized tooth profile ensures perfect meshing with the D9R track chain assembly, effectively preventing chain jumping and abnormal tooth breakage — protecting your entire undercarriage system .
- Engineered for Elevated Sprocket Design: The D9R’s elevated sprocket transfers implement shock loads to the mainframe, so final drives, axles, and steering components are isolated from harsh impacts . Our sprocket segment is built to thrive in this high-load environment, extending component life and maximizing productivity.
- Massive Demand in Open-Pit Mining: Our D9R sprockets are proven performers in large quarries and open-pit mining projects worldwide, where they face the most demanding abrasion and impact conditions .
- Hot Sale, Factory Stock: As one of our best-selling undercarriage parts, we maintain ready stock for fast turnaround — no long lead times, no project delays.
- Complete Undercarriage Solution: We also supply track chains, track shoes, track rollers, carrier rollers, idlers, cutting edges, and recoil spring assemblies for the D9R and entire Caterpillar D9 series . One-stop sourcing for your whole undercarriage.
- Factory-Direct Value: Genuine-level OEM quality at a competitive aftermarket price. Bulk wholesale and mixed container loading acceptable .
Applications:
Designed for Caterpillar D9R bulldozers operating in open-pit mining, large-scale quarrying, heavy earthmoving, infrastructure construction, landfill operations, and extreme-duty dozing and ripping. The D9 series is widely used in the mining industry globally , and our sprocket segment is built to keep your machine running through every shift.
Caterpillar D9R Undercarriage Advantage:
The D9R features Caterpillar’s signature elevated sprocket and fully suspended undercarriage, which together increase traction while creating a smoother ride . The elevated sprocket transfers implement shock loads to the mainframe, so final drives, axles, and steering components are isolated from harsh impacts — translating into higher production and longer component life . Our sprocket segment is precision-engineered to complement this design, delivering maximum durability in the toughest working conditions.
Quality Assurance:
- ISO 9001:2000 certified manufacturing
- Material verification — 40Mn2/50Mn/35MnB alloy steel meets international standards
- Heat treatment control — quench-tempering ensures HRC 52–58 tooth hardness with 8–12 mm case depth
- 100% pre-shipment inspection — dimensional accuracy, tooth profile, and bolt-hole pattern verified against OEM specifications
- Export-grade packaging — fumigated seaworthy wooden pallet/case for safe worldwide transport
Ordering & Support:
- MOQ: 1 piece (sample orders welcome)
- Lead Time: In-stock items ship within 5–7 days; standard production 15–20 days; bulk orders 25–30 days
- Payment: T/T, L/C, Western Union, PayPal
- Trade Terms: FOB Xiamen / Ningbo / Shanghai; CIF available
- Supply Ability: 1,000+ pcs/month
- Warranty: 12-month quality warranty
Fitment Tip: D9R sprocket configurations can vary by machine serial number and sub-model (D9R vs D9N vs D9T). Common part numbers include 9W-2312, 7T1247, 102-6676, 160-4926, and 160-4927 . Before ordering, please share your dozer’s model, serial number, or existing sprocket part number — or send photos and dimensions — and our engineering team will confirm the exact match to ensure perfect fitment.
Order Your Hot-Sale D9R Chain Sprocket Today!
Don’t let a worn sprocket compromise your dozer’s mobility and power transmission. A failing drive sprocket can cause track slippage, accelerated track shoe and link wear, and costly downtime on critical mining and construction projects. Contact us for a competitive factory-direct quote, or add to cart now. We respond to all inquiries within 24 hours and ship worldwide.
+86 1588 0208980
doozer@doozergroup.com
