Suzhou, Jiangsu, October 2026 - Suzhou Benit Machinery Technology Co., Ltd. has added a new production batch of pull wire sensors to stock, covering OEM references 161455, 2137341 and 04-20-30070. The sensor is the leveling feedback component used on W2000 and W1900 cold milling machines, and it is now available for immediate shipment to road maintenance contractors and equipment distributors worldwide.
Contact: WhatsApp +86 18262673385 | Email benit2@szbenit.com
Why This Small Part Decides Milling Depth Accuracy
On a cold milling machine, the side plate follows the existing road surface while the drum cuts to a preset depth. The pull wire sensor - also known as a string potentiometer or wire rope sensor - continuously converts the vertical travel of that side plate into an electrical signal for the automatic leveling system. When the sensor drifts, the machine over-cuts or leaves high spots, and every millimetre of error turns into wasted asphalt, extra truck cycles and rework on the next paving pass.
That is why contractors in Europe, the Middle East and Southeast Asia keep a spare sensor on the service truck. A sensor failure in the middle of a night shift can stop a whole milling train, and the delay cost is far higher than the part itself.
Product Details
| Product | Pull wire sensor / string sensor |
| OEM Reference | 161455 / 2137341 / 04-20-30070 |
| Machine Model | W2000 / W1900 cold milling machine |
| System | Electrical leveling control system |
| Mounting | Installed on the side plate of the milling machine |
| Housing | Silver protection, anti dust and anti vibration |
| Condition | 100 percent new, bench tested before packing |
| MOQ / Price | 1 piece / USD 415.00 per piece for 1-4 pieces |
| Lead Time | 2-3 days after payment |
| Supply Ability | 1000 pieces per month |
What Buyers Get With This Batch
- Drop-in replacement fit - the bracket, stroke and connector match the original sensor, so no wiring modification or recalibration of the bracket is needed.
- Stable signal output - each unit is tested on the bench for continuity and repeatability before it leaves the workshop, which keeps the leveling system from hunting during operation.
- Built for job site conditions - the silver protected housing resists the dust, slurry and constant vibration that destroy unprotected sensors within a few months.
- Interchangeable application - the same sensor is used on common asphalt paver leveling systems, which lets a workshop cover both milling and paving machines with one stock item.
- Fast reaction - stock in Jiangsu with dispatch in 2-3 days, and Shanghai port shipment for FOB, CIF or EXW Taicang terms.
Packing, Payment and Logistics
Sensors are packed individually in foam lined cartons and then consolidated on pallets or in wooden cases, which keeps the wire rope and connector protected during air, rail or sea transport. T/T, L/C at sight, D/P and Western Union are all accepted and negotiable. Buyers shipping to the Middle East and Africa usually choose air freight for urgent breakdowns, while distributors restocking for the season combine the sensor with track pads and screed plates in one sea container to reduce freight cost per unit.
Maintenance Tip From Our Engineer
Before the winter maintenance season, check the pull wire for fraying, verify that the sensor body is firmly fixed to the side plate, and confirm that the wire returns smoothly through its full stroke. A sensor that still gives a reading but hesitates at one end of the stroke is usually on its way out, and replacing it during a planned service is far cheaper than a mid-project failure. Keeping one spare on the shelf covers both W2000 and W1900 machines in the same fleet.
Frequently Asked Questions
Is this sensor new or rebuilt?
A: Every unit in this batch is 100 percent new and bench tested before packing. We do not supply repaired sensors.
Can you confirm the part for my machine?
A: Send the machine model, the OEM number stamped on the old sensor, or a clear photo of the installed part, and our engineer will confirm compatibility before shipment.
Do you supply other spare parts for the same machine?
A: Yes. We manufacture and distribute track pads, screed plates, rubber parts and electronic components for road construction equipment, with more than 15 years of experience in this field.
How fast can you ship?
A: Stock items leave our warehouse in 2-3 days after payment. Air freight reaches most destinations in 5-8 days, sea freight depends on the destination port.
Request a quotation for the pull wire sensor 161455 / 2137341
Send your required quantity and destination port, and our sales team will reply within one working day with price, stock status and the most economical shipping option.
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