Caterpillar 307D 308E CR SR minikaivinkone 366-9777 vetopyörästö

针对 Caterpillar (CAT) 307D、308D 以及 308E 系列（包括 CR 和 SR 机型）行走马达总成 (Final Drive)，这份详情页已结合 SEO 策略与您作为 13 年行业专家的专业背景生成。

此行走马达（零件号 366-9777）是 CAT 7-8 吨级挖掘机的核心驱动部件。我已将 OEM 编号、多机型兼容性及全球交付优势进行了深度整合。

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Meta Title: CAT 307D 308D 308E Final Drive Travel Motor | 366-9777 Expert

Meta Description: High-torque Final Drive Travel Motor for CAT 307D, 308D, 308E CR/SR. Part 366-9777. 13-year factory expertise, multiple quality tiers, fast global shipping.

[Product Title / H1]
Final Drive Travel Motor Assembly for CAT 307D 308D 308E CR SR Mini Excavator | Part No. 366-9777 3669777
1. Product Core Overview
Engineered for Precision & Power: This final drive is specifically designed for Caterpillar’s 7-8 ton high-performance excavators, providing the high torque output needed for heavy climbing and consistent travel speeds.

13-Year Industry Authority: Produced and supplied by a professional factory with 13 years of specialization in excavator undercarriage systems and hydraulic transmission.

Seamless OEM Compatibility: A 100% direct-fit replacement for Caterpillar part number 366-9777 and 3669777, matching original factory mounting dimensions and hydraulic specifications.

2. Technical Specifications & Compatibility
Product Name: Final Drive Travel Motor Assembly / Track Motor

Part Number: 366-9777 / 3669777

Machine Compatibility:

CAT 307D

CAT 308D, 308D CR

CAT 308E, 308E CR, 308E SR

Core Build: Features reinforced planetary gear sets with high-grade heat treatment and precision hydraulic motor components for maximum wear resistance.

Quality Tier Options: Genuine Original, Premium OEM Grade, and High-Performance Aftermarket.

Performance Testing: 100% dynamic load-tested for dual-speed functionality, brake efficiency, and oil seal integrity.

3. Why Partner with a 13-Year Professional Service?
Technical Mastery: We understand the specific gear ratios and back-pressure requirements of the CAT 308 series, ensuring our drives prevent common issues like "low travel power" or "track drifting."

Comprehensive Parts Ecosystem: Our expertise covers the entire machine—from final drives and pumps to undercarriage and all-body parts—supporting all major brands (CAT, Volvo, Komatsu, Sany, etc.).

Flexible Quality Selection: We provide multiple quality tiers—from original premium units to cost-effective, high-durability aftermarket options—to match your budget.

Direct Factory Prices: Buy directly from the source to get competitive wholesale pricing and first-hand technical support.

Proven Global Trust: Trusted by equipment owners, rental fleets, and repair workshops worldwide for consistent quality.

4. Rapid Global Delivery & Logistics
We prioritize speed to get your equipment back to work:

Express Delivery: Rapid door-to-door shipping via DHL, FedEx, UPS, and TNT (Typical arrival: 3-7 business days).

Air Freight: Efficient airport-to-airport delivery for urgent, high-priority travel motor orders.

Sea Freight: The most economical shipping method for bulk stock orders and large-scale inventory replenishment.

Secure Export Packaging: Every final drive is secured in a reinforced, shock-proof wooden crate to ensure it arrives in factory-perfect condition.

5. Ordering & Professional Support
Fitment Verification: Please share your machine's serial number or a photo of the travel motor nameplate to ensure 100% fitment accuracy.

Real-Time Quote: Contact us today for up-to-date pricing, tiered quality options, and current stock status.

Maintenance Guidance: Our technical team is available 24/7 to provide advice on hydraulic line connections, system bleeding, and final drive gear oil intervals.