Swing motor leaking into the gearbox housing on your 325 or 330? A cracked or seal-worn 111-1115 swing motor housing allows motor case oil to cross-contaminate the swing gearbox, accelerating gear wear and causing oil analysis alarms. RITO supplies this heavy-duty M2X170 swing motor housing to restore the sealed boundary between motor case oil and gearbox gear oil.
Item NO.:
111-1115Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In Stock111-1115 Swing Motor Housing for Kawasaki M2X170 swing motor on Caterpillar 325BL, 325, 330, 330B, 350 and 375 excavators. The motor housing is the structural casing that positions the rotating group, supports the brake valve and seals the case-drain circuit from the swing gearbox. Heavy-duty casting with precision-bored seal grooves and bearing seat maintains the structural rigidity needed at M2X170 operating torque.
| Part Number | 111-1115 |
|---|---|
| Part Name | Swing Motor Housing (M2X170) |
| Compatible Brand | Caterpillar |
| Applicable Models | 325BL, 325, 330, 330B, 350, 375, E322, E325BL Excavator |
| Application | Motor case housing for Kawasaki M2X170 hydraulic swing motor |
| Material | High-strength grey iron casting |
| Product Color | Industrial metallic grey |
| Working Temperature | -30°C~+80°C |
| Key Function | Provides structural casing, rotating group support and case-drain circuit sealing for M2X170 swing motor |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
O-ring and shaft seal grooves machined to OEM dimensions for correct seal squeeze, preventing the cross-contamination of motor case oil with swing gearbox gear oil.
Housing casting rigidity maintains bearing seat concentricity under M2X170 peak swing torque, preventing shaft deflection that accelerates motor bearing and seal wear.
Case-drain port location and thread size confirmed for M2X170 on Cat 325-375 to ensure correct case-drain line routing without adaptor fittings.
Single housing part number covers 325BL, 325, 330, 330B, 350 and 375 Caterpillar models using M2X170 swing motor, simplifying spare parts stocking for Cat large-excavator fleets.
FAQ
Q: What causes the 111-1115 swing motor housing to fail on Cat 325?
A: Housing cracking from swing reversal shock on hard work (rock breaking), shaft seal groove wear from prolonged operation with contaminated oil, and impact damage from boom contact with the motor housing are the main causes.
Q: Can I replace just the shaft seal without replacing the full 111-1115 housing?
A: If the housing shaft bore and seal groove are within OEM tolerance, shaft seal replacement alone stops the leak. Replace the full housing if the bore shows fretting or the groove is scored beyond the OEM width specification.
Q: Will cross-contaminated swing gearbox oil after a housing seal failure damage the gears?
A: Yes. Motor case-drain oil is hydraulic fluid, not gear oil; its viscosity and additive package are wrong for gear protection. Drain and flush the swing gearbox and refill with the correct EP gear oil after housing seal replacement.
Q: How to confirm 111-1115 fits my Cat 325 M2X170 swing motor?
A: Match existing housing part number 111-1115 and confirm motor model is M2X170. Provide machine model and serial number to our team for cross-reference.
Q: What quality options are available?
A: We provide original, OEM and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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