Nachi MAG-18V Final Drive Travel Motor | MAG-18V-250 & MAG-18V-320E Replacement

Model Number	MAG-18V-320E-3 (B0240-18046), MAG-18V-280E-4 (B0240-18030), MAG-18V-250 (20450-52474)

Product Description

Genlu Hydraulic proudly introduces our precision-engineered MAG-18V Series Final Drive Travel Motor, the integrated hydraulic rotary power unit specifically designed for mini-excavators and compact construction machinery. This series serves as a precise match for Nachi technical standards, comprehensively covering configurations including MAG-18V-250 (20450-52474), MAG-18V-280E-4 (B0240-18030), and MAG-18V-320E-3 (B0240-18046). Genlu unequivocally guarantees 100% Drop-in Interchangeability in mounting dimensions, sprocket hub connectivity, port layouts, and output characteristics. Backed by our uncompromising 100% Simulation Load Testing, each final drive is validated for torque performance, braking functionality, and pressure-leakage integrity before dispatch, ensuring relentless, stable, and high-performance operation on the toughest job sites.

Technical Specifications

Product Series: Nachi MAG-18V Series Final Drive Travel Motor
Representative Models: MAG-18V-250, MAG-18V-280E-4, MAG-18V-320E-3
Applicable Equipment: Compact hydraulic excavators (typically 3-5 ton class)
Rated Operating Pressure: 210 – 250 bar (Application-dependent)
Max Peak Pressure: 280 bar (4060 psi)
Speed Control: Two-speed functionality (High/Low mode switching)
Integrated Components: Hydraulic motor, planetary gearbox, mechanical parking brake
Connection: OEM standard flange mounting, sprocket hub direct-fit

Key Technical Advantages:

High-Integration Reduction Gearbox: Featuring a multi-stage, high-precision planetary gear set, we achieve superior transmission efficiency. Specialized thermal processing significantly enhances gear durability against shock loads, preventing tooth surface spalling during prolonged operation.
Integrated Dual-Speed Control Valve: The built-in switching valve allows for rapid transition between high-speed and high-torque modes based on terrain conditions, ensuring both efficient transport and powerful climbing capability.
High-Reliability Mechanical Braking: Spring-applied, pressure-released internal brakes provide instantaneous and reliable locking in emergencies or during standstill. Paired with wear-resistant friction discs, this ensures maximum safety during slope operations.
Reinforced Sealing & Dust Protection: Engineered specifically for harsh field environments, our motors utilize multi-stage reinforced floating seals to effectively block sand, water, and debris, drastically extending service life in extreme site conditions.

Application Areas:

Mini Excavators: Crawler drive systems for 3-5 ton class hydraulic excavators.
Construction Machinery: Small-scale drill rigs, skid-steer loaders, and various tracked power units.
Specialty Vehicles: Tracked transport chassis and municipal maintenance equipment.

Expert Maintenance Tips:

Regular Gear Oil Change: The internal planetary reduction gear section uses gear oil (typically 80W-90). Inspect the oil color every 500-1000 operational hours to prevent lubricant failure from accumulated metallic wear particles.
Case Drain Line Integrity: Never operate the motor if the case drain line is blocked or restricted. High internal pressure will blow out the rotary shaft seals, leading to catastrophic oil leakage.
Cold Start Protection: When operating in cold winter conditions, perform slow forward and reverse movements for several minutes. Allow the hydraulic and gear oil to reach operating temperatures before engaging in heavy-duty travel to prevent seal damage.

Related Models：

M2X70CAB-10A-01/260
M5X180CHB-10A-1KD/285-149
M5X180CHB-10A-4AA/330
M5X180CHB-10A-35B/285-F
KAYABA – KYB
MAG-10-90-1 (20450-52002)
MAG-16N-120 (20450-52423)
MAG-12V-120E
MAG-16N-220-1, 20450-52436
MAG-16P-120-1,
MAG-16V-140, 20450-52501
MAG-16V-140-1
MAG-16V-140-2 – 20450-52513
MAG-16V-180-2 (20450-52519)
MAG-16V-180-2 (B0240-16006)
MAG-16V-190E-2, B0240-18027
MAG-18V-190E-2 (B0240-18027)
MAG-16VP-180-2 (B0240-16006)
MAG-18V-150E-2 (B0240-18044)
MAG-18V-200-1 (20450-52466)
MAG-18V-210-1 (20450-52473)
MAG-18V-230E-1, B0240-18048
MAG-18V-230-2 (20450-52496)
MAG-18V-230E-3, B0240-18091
MAG-18V-230F-3 (B0240-18093)
MAG 18V-240-2
MAG-18V-250 (20450-52474)
MAG-18V-250-2 (20450-52497)
MAG-18V-260-1 (20450-52521)
MAG-18V-280E-1 (B0240-18013)
MAG-18V-280E-4 (B0240-18030)
MAG-18V-280E-4 (B0240-18039)
MAG-18V-290E-1
MAG-18V-320E
MAG-18V-320E-3 (B0240-18046)
MAG-18V-350F-2
MAG-18VP-190E-2, B0240-18056
MAG-18VP-220
MAG-18VP-220-3
MAG-18VP-220F-1, B0240-18059
MAG-18VP-220F-2 (B0240-18060)
MAG-18VP-230
MAG-18VP-230F-1 (B0240-18063)
mag-18vp-230f-2 (B0240-18061)
MAG-18VP-230F-5 B0240-18089
MAG-18VP-230F-7 (B0240-18098)
MAG-18VP-250
Mag-18VP-270E-1 (B0240-18034)
MAG-18VP-290
MAG-18VP-350
MAG-18VP-350F-2
MAG-18VP-350F-3 – B0240-18070
MAG-18VP-350F-5
MAG-18VP-350F-6
MAG-18VP-350F-9 (B0240-18086)
MAG-26P-320-1, 20450-53099
MAG-26V
MAG-26V-11 1T215002090
MAG-26V-280-3
MAG-26V-320-1 (20450-53063)
MAG-26V-380-1 (B0240-26010)
MAG-26V-380F-1 (B0240-26015)
MAG-26V-400
MAG-26VP
MAG-26VP-310-2 (20450-53092)
MAG-26VP-320-3
MAG-33P-500-8,
MAG-33V-450-1 (20450-53411)
MAG-33V-500E-1 (B0240-33030)
MAG-33V-510-1 (20450-53473)
MAG-33V-550E-2 (B0240-33017)
MAG-33V-550E-4
MAG-33V-550F-5
MAG-33V-550F-6 (B0240-33001)
MAG-33VP
MAG-33VP-370E-1 (B0240-33014)
MAG-33VP-460 (20450-53438)
MAG-33VP-500-3 (20450-53453)
MAG-33VP-500-5,
MAG-33VP-550
MAG-33VP-550-2 (B0240-33007)
MAG-33VP-650
MAG-33VP-650F
MAG-33VP-650F-2 (B0240-33069)
MAG-33VP-650F-3 (B0240-33071)
MAG-33VP-650F-12(B0240-33083)
MAG-33VP-650F-16(B0240-33086)
MAG-33VP-650F-17 (B0240-33087)
MAG-37NV-450-4 (20450-53403)
MAG-44V-9-800
MAG-44VP-TR8 (B0443-09058)
MAG-50VP-16
MAG-50VP-1100F-K1 (B0240-5009)
MAG-63VP-770 (20450-54387)
MAG-63VP-770-2,
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MAG-85NP-730-1 (20450-54309)
MAG-85VP-1200-6,
MAG-85VP-1600-2 B0240-85014
MAG-85VP-1800
MAG-85VP-2000-2
MAG-85VP-2000E-2 (B0240-85013)
MAG-85VP-2400E-6
MAG-85VP-2400E-8 (b0240-85018)
MAG-150VP-2300-4,
MAG-85NP-730-1, (20450-54309)
MAG-85VP-1000-5,
MAG-85VP-1200-4,
MAG-170VP-2400-1,
MAG-170VP-2700-1,
MAG-170VP-3400F-4 (B0240-93032)
MAG-170VP-3600E-2 (B0240-93006)
MAG-170VP-3600E-4 (B0240-93015)
MAG-170VP-3600E-6 (B0240-93025)
MAG-170VP-3600F-2 (B0240-96006)
MAG-170VP-3600-4,
MAG-170VP-3800
MAG-170VP-3800G-S1 (B0240-93041)
MAG-170VP-3800G-S4 (B0240-93054)
MAG-170VP-3800G-K1 (B0240-93045)
MAG-170VP-3800G-K5 (B0240-93052)
MAG-170VP-3800G-K9 (B0240-93084)
MAG-170VP-3800G-K10 (B0240-93085)
MAG-180VP-6000
MAG-230VP-3000,
MAG-230VP-3000-3,
MAG-230VP-4000-1
MSG-27P-9-2 (20450-63210)
MAG-27P-10E-23 (B0250-27076)
MSG-27P-10E-23 (B0250-27076)
MSG-27P-10E-11 (B0250-27030)
MSG-27P-16E-14 (B0250-27044)
MSG-27P-16E-25 (B0250-27077)
MSG-27P-23E-4-T220
MSG-27P-23E-6 (B0250-27042)
MSG-44P-21-19 (B0250-44019)
MSG-27P-23E-12 (B0250-27072)
MSG-28P-16E-26 (B0250-27078)
MSG-85P-17TR, (B0250-85003)
MSG-85P-17TR (B0250-85004)
MSF-27P-16 – B0440-27063
MSF-85P (B0440-85018) 1T852070137
MSF-85P-7 (B0440-85019) 1T852070138
MSF-170VP-4
MSF-170VP-5 (20460-51456)
PC-100-19-4D-0922A
PC-100L-16-5K-1317A
PC-300-20-6M-1404A
PCL-25-8-1S2-8791A
PCL-25-9-7S2-8727A
PCL-100-21-1S2-8605A
PCL-120-18B-1S3-8962A
PCL-200-20B-7FG3-9127A
PCR-1B-05A-P-8289A
PCR-1B-05A-P-8290A
PCR-2B-10A-8689A
PCR-2B-10A-FP-8584A
PCR-3B-12A-FP-8632A
PCR-5B-30A-FGB-9537A
PCR-5B-30A-FGP-9407A
PCR-5B-30A-FGP-9478A
PH-100-24-686E
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PVD-0B-16L3PS-5G-4451F
PVD-0B-16L3PS-5G-4451G
PVD-0B-19L3PS-8G-4069F
PVD-0B-20P-6G-4624B
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PVD-00B-16P-5G3-5158a
PVD-1B-20L3DPS-8G-4098A
PVD-1B-23L3S-5S-4124F
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PVD-1B-25BP-8AG5-4760A
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PVD-1B-34P-11G5-4665B
PVD-2B-20B-P-8875A
PVD-2B-36L3DS-5S-4126G
PVD-2B-31P-11AG-3053F
PVD-2B-40P-16G5-4191B
PVD-2B-41BP-16G5-5184B
PVD-2B-42L3DPS-12G-4218F
PVD-2B-44BP-16G5-4713F
PVD-2B-44P-12G-4713H
PVD-2B-45P-18G6A-4891F
PVD-2B-50BP-21G5-4597H
PVD-2B-50P-16G6-4928G
PVD-3B-54P-14G8-4405F
PVD-3B-56P-18G5-4191A
PVD-3B-56P-21G-4626F
PVD-3B-56P-21G-4626H
PVD-3B-56L-3DPS-21G-4120F
PVD-3B-60L-5P-9G-0235A

Company Profile

Frequently Asked Questions

1.What ls our Main Products?

1.Hydraulic pump
2.Hydraulic valve
3.Hydraulic motor
4.Hydraulic cylinder
5.Hydraulic parts

2. What about the MOQ?

MOQ: 1pcs— we support sample and small quantity orders.

3.What are your advantages?

Adhere to quality first.
Support customization, ODM & OEM service.
1-year warranty and complete after-sales support.
Safe and fast shipping worldwide.
24-hour online service for your inquiries.

4.Are you a manufacturer? What’s your delivery time?

Yes, we are a manufacturer with our own factory.

Common models are in stock, and orders are usually shipped within 1–3 days.

5.Which payment methods are accepted?

We accept T/T, L/C, PayPal, VISA, Western Union, Apple Pay, Google Pay, Afterpay (Clearpay), Klarna, and Trade Assurance.

For full orders: 30% deposit, balance before shipment.

For small/sample orders: full payment in advance.

6.How will you deliver my goods?

We offer flexible shipping options: DHL, UPS, FedEx, TNT, EMS, as well as air or sea freight.

All deliveries ensure door-to-door fast and safe service.

7.How do you inspect and guarantee your products?

All products are tested before shipment to ensure perfect working condition.

We offer a 12-month warranty — if a product fails due to quality issues, we provide free spare parts or repair support.

8.What about after-sales service?

If you encounter any problem during use, please contact your sales manager or our support team at any time.

We will respond quickly and help solve the issue efficiently.

9.What are your main applications?

Hydraulic systems
Agricultural machinery
Construction machinery
Automobile industry
Local distributors and maintenance centers

10.Can I get a discount for bulk orders?

Yes. We offer competitive wholesale prices and try our best to give benefits to long-term partners.

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