China E320D3 SLEWING REDUCTION GEARBOX  543-1000 DRIVE GP-SWING -WITHOUT MOTOR PART OF 525-3741 DRIVE GP-SWING for sale
China E320D3 SLEWING REDUCTION GEARBOX  543-1000 DRIVE GP-SWING -WITHOUT MOTOR PART OF 525-3741 DRIVE GP-SWING for sale
  1. China E320D3 SLEWING REDUCTION GEARBOX  543-1000 DRIVE GP-SWING -WITHOUT MOTOR PART OF 525-3741 DRIVE GP-SWING for sale

E320D3 SLEWING REDUCTION GEARBOX 543-1000 DRIVE GP-SWING -WITHOUT MOTOR PART OF 525-3741 DRIVE GP-SWING

Price 975.00USD
MOQ 1
Delivery Time 1-3days
Brand TGFQ
Place of Origin CHINA
Model Number E307.5 E308
Packaging Details NNER PACKING: Wrap by plastic film, clear label for each item. OUTER PACKING: Carton or Plywood Case PACKING SIZE: Depend on packing type
Payment Terms L/C,T/T,D/P,D/A
Supply Ability 50 pcs / month

Product Details

Product Specification

Brand Name TGFQ Payment Terms L/C,T/T,D/P,D/A
Place of Origin CHINA Compatible Models E320D3, E307.5, E308
Price 975.00USD Delivery Time 1-3days
Minimum Order Quantity 1 Packaging Details NNER PACKING: Wrap by plastic film, clear label for each item. OUTER PACKING: Carton or Plywood Case PACKING SIZE: Depend on packing type
Model Number E307.5 E308 Supply Ability 50 pcs / month

Product Description

E320D3 SLEWING REDUCTION GEARBOX 543-1000 DRIVE GP-SWING - WITHOUT MOTOR PART OF 525-3741 DRIVE GP-SWING

E320D3 SLEWING REDUCTION GEARBOX 543-1000 DRIVE GP-SWING - WITHOUT MOTOR PART OF 525-3741 DRIVE GP-SWING

Travel Counterbalance Valve Assembly - Part of 525-3741 543-1000 Hydraulic AR

Safety Features
Reverse Prevention System

The motor and mounting group incorporates a built-in reverse-prevention valve that eliminates unintended reverse rotation, preventing operational errors and safety hazards.

  • One-way valve design ensures hydraulic oil flows in only one direction
  • Prevents motor reversal due to external forces or hydraulic fluctuations

This safety feature is critical during heavy lifting operations where reverse rotation could cause load drops and serious accidents. The high-flow capacity valve maintains normal motor operation and response speed while providing reliable performance under high hydraulic pressure and frequent use conditions.

Product Specifications
Compatible Models E320D3
Category Excavator Swing Hydraulic Motor
Brand TGFQ
Part Numbers 525-3741/543-1000
Packing Wooden case
Delivery Time 1-3 days after payment confirmation
Shipping Methods By Sea, Air, or Express
Quality Assurance

Each unit undergoes thorough inspection and detailed photos are provided for buyer confirmation before shipping to ensure product quality and satisfaction.

Hydraulic Motor Applications

Hydraulic motors are essential components in earthmoving equipment including excavators, backhoe loaders, skid-steer loaders, forklifts, heavy dump trucks, and bulldozers. They power hydraulic cylinders that extend and retract during various operational cycles.

Swing Brake Operation

The swing brake features a multi-disc and plate assembly located in the first stage planetary gear. This spring-applied, hydraulically-released system functions as a parking brake and is not designed for cyclic service braking. Discs and plates are lubricated by the release signal oil for optimal performance and longevity.

Product Images
E320D3 slewing reduction gearbox component view Close-up view of gearbox internal mechanism Gearbox assembly showing planetary gear system Detailed view of swing drive components Complete gearbox unit overview
Travel Motor Parts Breakdown
Travel motor parts breakdown diagram
Parts List - Assembly 1
Item Part Number Part Name Quantity
1 550-5488 Shaft-Pinion 1
2 550-5489 Spacer (120X140X7.5-MM Thk) 1
3 550-5490 Seal-O-Ring 1
4 550-5491 Bearing 1
5 550-5492 Housing 1
6 6V-7238 Valve-Shutoff (Swing Drive) 1
7 3K-0360 Seal-O-Ring 1
8 550-5493 Seal-Ring 1
9 550-5494 Bearing 1
10 550-5495 Nut-Ring 1
11 550-5496 Seal-O-Ring 2
12 550-5497 Gear-Ring 1
13 550-5498 Planetary AS 1
14 550-5499 Gear-Sun 1
15 550-5500 Planetary AS 1
16 550-5501 Gear-Sun (22-TEETH) 1
17 550-5502 Cover 1
18 550-5505 Gauge-Oil Level (Swing Drive) 1
19 491-3927 Bolt-Flange Head (M16X2X120-MM) 15
20 550-5506 Breather AS (Swing Drive) 1
AVAILABLE REPAIR KIT(S):
21 569-7789 Kit-Pinion (Swing Drive) 1
22 570-3872 Kit-Pinion (Swing Drive) 1
Warehouse & Inventory Capacity

Our facility includes over 4000 square meters of three-dimensional warehouse space plus 2000 square meters of outdoor storage, ensuring adequate inventory levels and rapid response to customer requirements. Fast delivery is our competitive advantage.

TGFQ warehouse interior with organized parts storage TGFQ warehouse shelving system with hydraulic components TGFQ warehouse storage facility overview
Frequently Asked Questions
Can I order a sample for testing first?

Yes, we welcome sample orders for testing and evaluation.

How do I place an order?

Simply provide the model and quantity you need. We will issue a proforma invoice, and upon payment confirmation, your order will be processed. Preparation time varies based on order complexity.

Do you have your own factory?

Yes, we operate our own manufacturing facility with 23 years of specialized experience in the excavator gear industry.

Guangzhou Tiangong Machinery Equipment Co., Ltd.

Manufacturer, Trading Company
  • Annual Revenue: 10 million-15 million
  • Employees: >150
  • Year Established: 2000