ranroswang@hksparkling.com 
+86 138 2341 8469
279-1341 Motor Shaft for Caterpillar 305.5 / 305.5D / 305.5E Mini Excavator – Replacement Drive Shaft
The 279-1341 motor shaft is a heavy-duty travel motor drive shaft for Caterpillar mini excavators 305.5/305.5D/305.5E (also fits 304C CR/305C CR/306). It transmits torque from the hydraulic travel motor to the final drive gearbox, enabling smooth track movement in construction/landscaping applications. As a direct OEM replacement (interchangeable with 2791341), it restores reliable power transfer and prevents drive system downtime.
Key Features
· OEM-Matched Precision: Forged 42CrMo alloy steel, exact spline dimensions, and flange fit—no modification needed for Cat models.
· Durable Construction: Carburized surface (58–62 HRC) for wear resistance; precision-ground journals for bearing alignment.
· High Torque Capacity: Rated for 2,800 N·m max torque; balanced to G6.3 standard for low vibration.
· Plug-and-Play Installation: Direct bolt-on fit with pre-drilled mounting holes; 30-minute replacement, no special tools required.
· Long Service Life: Shot-peened for fatigue resistance; 10,000+ hours lifespan; outlasts generic shafts by 60%.
Compatible Equipment
· Mini Excavators: Caterpillar 305.5, 305.5D, 305.5E, 304C CR, 305C CR, 306.
· Interchangeable Part Numbers: 279-1341, 2791341.
Thank you for choosing SPARKLING MACHINERY for your motor shaft needs. The 279-1341 travel motor shaft is critical for reliable track operation in Cat 305.5-series excavators, ensuring consistent performance in tough worksites. Our shafts meet ISO 9001 and Cat OEM standards, backed by a 12-month warranty and technical support for installation/troubleshooting.
The SPARKLING MACHINERY NEW 279-1341 Motor Shaft Photo:
Why Choose the SPARKLING 279-1341 Motor Shaft?
- OEM-Grade Fit: Matches original spline count, flange pattern, and torque rating—restores 99%+ drive system efficiency.
- Superior Durability: 42CrMo steel with carburized treatment reduces wear/fatigue failure by 70% vs. generic shafts.
- Reduced Downtime: Plug-and-play design cuts replacement time; 100% tested for runout (<0.05mm) and hardness.
- Cost-Effective: 40% lower price than OEM with same quality; 12-month warranty covers manufacturing defects.
- Certified Quality: CE/RoHS compliant; each unit passes magnetic particle inspection (MPI) for crack detection.
| PART NUMBER | PART NAME | |
| 1 | 2534-1167 | LAMP ASS'Y, FRONT COMBI(R.H.) |
| 2 | 2534-1168 | LAMP ASS'Y, FRONT COMBI(L.H.) |
| 3 | 2534-6030 | CASE, LAMP |
| 4 | K1014887 | LAMP;REAR COMBI (RH) |
| 5 | K1036247 | LAMP |
| 6 | 21M9-50600 | LAMP ASSY-COMBI RH |
| 7 | 21M9-50900 | LAMP ASSY-COMBI LH |
| 8 | 3E-9362 | RELAY |
| 9 | 146-9439 | RELAY |
| 10 | 261-2207 | GP-Transmission Controll |
About SPARKLING MACHINERY:
- Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.
Get In Touch:
- Replace your failing ECU confidently. Contact SPARKLING for pricing, lead time, and technical support — restore optimal machine control quickly and reliably.
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📦 Packing
1. Packaging methods: Carton box + Wooden case/Pallet + Anti-rust treatment
2. Export-standard packaging to ensure safety during transportation
3. Custom packaging available upon request
4. Dimensions and weight can be provided for freight calculation
🚚 Shipping
1. Available shipping methods: Sea freight, Air freight, Express delivery (DHL, UPS, FedEx, etc.)
2. LCL (Less than Container Load) and FCL (Full Container Load) options are supported
3. For Russian clients, we can introduce the forwarder agent to you
4. Delivery time: Ships within 1-3 working days after payment (for items in stock)
💳 Payment
1. Accepted methods: T/T, Bank Transfer, PayPal, Alipay, WeChat Pay, Western Union
2. Deposit + balance payment available for large or custom orders
3. Flexible payment options—feel free to contact us for details
📌 Frequently Asked Questions (FAQs)
Q: Which excavator models is this part compatible with?
A: This product is compatible with major brands such as CAT, KOMATSU, HITACHI, and more. Custom specifications are also available.
Q: How can I make sure I’m selecting the correct part?
A: You can send us a photo of the old part, part number, or your excavator model, and we will help you confirm the right match.
Q: Is there a warranty for this product?
A: Yes, we offer a 6-month quality guarantee under normal use.
Get a free quote
We are committed to producing the highest quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.
Contact us
Email: ranroswang@hksparkling.com
Wechat: +86 136 0901 0879
Skype: foreverlucia1
WhatsApp: +86 136 0901 0879
Address: No. 514-515, Hulin Road, Tianhe District, Guangzhou, China.
Sparkling Machinery Co.,Ltd
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Whatsapp: +8613609010879