SK200-6 SK210-8 SH200-3 MAG170VP-3400 YN15V00018F1 Kayaba MAG170VP Travel Motor Repair Kit Compatible with Kobelco Sumitomo Kato Hyundai

1. Product Overview & Wholesale Price Range

The Kayaba MAG170VP-3400 Travel Motor Repair Kit (OEM Part # MAG170VP-3400 / MAG170VP-3800 / MAG170VP / YN15V00018F1) includes the complete internal rotary group overhaul set: cylinder block, piston shoes with bronze slippers, distributor valve plate, retainer plate, ball guide, swash plate cradle, and drive shaft designed for 18-to-22-ton excavators undergoing travel motor overhauls.

• Factory Wholesale Price: $320 – $680 USD (Direct manufacturer pricing — Save up to 50% vs regional dealer markups)
• Included Core Spare Parts: Cylinder Block (1pc) + Piston Shoes (9pcs) + Valve Plate (1pc) + Retainer Plate (1pc) + Ball Guide (1pc) + Swash Plate (1pc) + Drive Shaft (1pc)
• MOQ & Bulk Discount: 1 Set (Tiered wholesale discounts available for hydraulic repair shop batch orders)
• Lead Time: 1–3 business days (Large factory stock ready for immediate worldwide dispatch)
• Warranty: 12 Months full replacement warranty with high-lead bimetallic bronze durability guarantee

2. Application Worksite Checklist (施工场景清单)

Engineered to restore original track driving power and smooth crawling control across demanding 18-22 ton excavator jobsites:

• Heavy Open-Pit Mining & Quarrying: Restores maximum track torque during heavy soil hauling with Kobelco SK210-8 and SK200-6 excavators.
• Deep Foundation Excavation & Earthmoving: High thermal resistance bimetallic plates prevent travel power loss during continuous long-hour digging.
• Highway Infrastructure & Utility Trenching: Precision lapped cylinder faces ensure zero internal oil bypass during straight track crawling.
• Demolition & Heavy Breaker Operations: Forged alloy steel pistons absorb continuous track impact vibration from rock breakers.

3. Travel Motor Overhaul & Fault Diagnostic Guide (维修包常见故障排查)

If your 18–22 ton excavator travel motor is exhibiting performance degradation, check the wear symptoms below:

• Fault 1: Machine Off-Track / Deviating to One Side During Straight Travel (单边行走跑偏/内泄)
  Root Cause: Severe volumetric oil bypass across the worn cylinder block valve plate or piston slippers in one travel motor.
  Solution: Replace the worn rotary group with our precision lapped MAG170VP-3400 cylinder block and valve plate kit (OEM YN15V00018F1).
• Fault 2: Weak Crawling Torque / Unable to Climb Steep Inclines (爬坡无力/行走瘫软)
  Root Cause: Scoring on piston shoe brass slippers or stickiness in the swashplate cradle pivot.
  Solution: Install new MAG170VP-3400 copper-coated piston shoes and swashplate group to restore smooth stroke control.
• Fault 3: Black Copper Filings Found in Hydraulic Return Oil Filter (油箱内有黑粉铜屑)
  Root Cause: Friction galling and thermal melting of the bronze layer on the piston slippers under high pressure.
  Solution: Flush the entire hydraulic oil circuit, clean control valves, and rebuild motor with high-lead bronze MAG170VP pistons.
• Fault 4: Abnormal Metallic Chattering & Noise From Reduction Gearbox (减速机异响/齿轮打齿)
  Root Cause: Broken retainer plate spring, worn ball guide, or pitted drive shaft bearing surface.
  Solution: Replace ball guide, retainer plate, and drive shaft assembly to eliminate mechanical chatter.

4. Hot Machinery Replacement Parts Recommendation (5大品类热门推荐表)

Explore our factory-direct replacement hydraulic components compatible with major global excavator brands:

5. Frequently Asked Questions & Technical Support (QA 问答专区)

Q1: How do I verify if this MAG170VP-3400 repair kit fits my Kobelco SK210-8 or Sumitomo SH200-3 travel motor?
A: Check your original travel motor tag for OEM part numbers MAG170VP-3400, MAG170VP-3800, or YN15V00018F1. You can also send us clear photos of your old cylinder block and piston slippers for instant fitment verification.

Q2: What is the material hardness of the MAG170VP-3400 cylinder block and piston slippers?
A: Our MAG170VP-3400 cylinder blocks are made of high-density forged alloy steel with bimetallic copper-alloy distribution faces, and the piston shoes feature high-lead bronze slippers rated for continuous 350 Bar working pressure.

Q3: Is this MAG170VP-3400 repair kit a complete overhaul solution for travel motor rebuilds?
A: Yes, it includes all major internal wear components (cylinder block, 9 pistons, valve plate, retainer plate, ball guide, swashplate, and drive shaft) required for a complete motor rebuild.