Rexroth 4WE6 Replacement Guide
How to switch your 4WE6 solenoid valve to a direct drop-in YXCHK equivalent — without redesign, without BOM changes, and with the same 31.5 MPa performance. Three steps: decode, check, install.
Direct Answer
Replacing a Rexroth 4WE6? YXCHK makes direct drop-in equivalents to ISO 4401-03 with matching spool code, coil voltage and pressure class. Confirm your code, check the centre condition, verify the coil, and the valve bolts on unchanged — 100% individually tested, 7-day dispatch, 1-year warranty.
- Mounting: ISO 4401-03 (NG6 / CETOP 3) — identical interface, no manifold rework.
- Pressure: 31.5 MPa, matching the Rexroth-type 4WE6 rating.
- Coil: CG24 (DC 24V) or AW220 (AC 220V), IP65.
- Stock: 38 in-production 4WE6 models held as finished goods.
- Verification: every unit pressure- and function-tested individually.
Replace vs. Repair: When to Stop Fixing
Rebuilding or repairing an aging 4WE6 valve — coils rewound, spools re-honed, seals replaced — costs almost as much as a new valve and keeps a worn body in service. For valves past 6-8 years of duty, replacement is the predictable choice.
| Repair (Rebuild) | YXCHK Replacement | |
|---|---|---|
| Typical cost | 60-85% of new price, plus labor | Factory-direct, volume-tiered |
| Lead time | 2-6 weeks with shop backlog | 7 working days, in stock |
| Warranty | Usually 90 days | 1-year replacement + lifetime support |
| Performance | Worn body, original limits | 100% tested, new 8-year design life |
Decision checklist: repair only for short-term production coverage with stock on hand; replace when the valve is out of warranty, intermittent in behavior, or the machine will run for years to come.
How to Decode Your 4WE6 Model Code
Take 4WE6E60/CG24N9Z5L as an example and read it left to right:
| Segment | Meaning | Example |
|---|---|---|
| 4WE6 | NG6 / Cetop 3 directional valve, 4-way | 4WE6 |
| E | Spool function (neutral position) | E = all ports closed |
| 60 | Design series (mounting/port layout) | 60 series |
| CG24 | Coil: DC 24V, wet-pin, with rectifier (C) | CG24 = DC 24V |
| N9 | Manual override: impulse type | N9 = impulse |
| Z5L | Connector: right-angle plug with lamp (Z5L) | Z5L = DIN 43650 plug |
Common alternatives: AW220 = AC 220V, D24-style = DC 24V without rectifier suffix, OF = with stroke limiter. When the code is unclear, send a photo of the nameplate to our engineering team.
| Rexroth | Centre condition | Yuken | Shanghai-type |
|---|---|---|---|
| E | All ports closed — holds load | 3C2 | O |
| G | P→T connected, A & B blocked | 3C60 | M |
| H | All ports open | 3C3 | H |
| J | P blocked, A & B to T — float, pump not unloaded | 3C4 | Y |
| L | All ports to tank — float | 3C12 | N |
| M | P, A, B open; T blocked | 3C9 | P |
| U | P→A with check, B→T | 3C10 | — |
| F | P→B with check, A→T | 3C5 | — |
Compatibility Check in 3 Steps
Check the mounting interface
4WE6 = NG6 / Cetop 3 / ISO 4401-03. Confirm your manifold sub-plate is ISO 4401-03 — if yes, the YXCHK valve bolts straight on with the same 4 mounting bolts and port spacing.
Match the spool function
Use the 4WE6 cross-reference table to map your spool function letter (E / G / H / J / L / M / U / F) to the exact YXCHK equivalent model.
Verify voltage & wiring
Match coil voltage (DC 12/24V, AC 110/220V) and connector (Z5L right-angle plug, DL plug with lamp, N9 manual override) to your existing wiring. All YXCHK coils are wet-pin type and DIN 43650 / ISO 4400 compatible.
Three mistakes that break an otherwise perfect swap
- 1. Copying the code without reading the centre condition. A 4WE6E60 (E spool, all ports closed) and a 4WE6G60 (G spool, P→A / B→T) mount identically and use the same coil — but one holds the load and the other shifts it. Match the behaviour, not just the mounting.
- 2. Ordering by photo. The coil connector (CG24 vs AW220) and the transition behaviour (60 vs 30 series) are invisible in a product photo. Read the full code off the nameplate, not the sales record.
- 3. Assuming 4WE10 compatibility. 4WE10 uses ISO 4401-05 (NG10). The bolt pattern is different — a 4WE6 replacement will not fit a 4WE10 manifold, and vice versa. If you are unsure which size is fitted, measure the mounting face or count the ports before ordering.
If you are still deciding whether to repair or replace the failed unit, see the repair vs replace decision guide — it covers the full Rexroth series, not just 4WE6.
Installation & Testing
- Each valve ships with its 100% factory test report (electrical, internal leakage, peak pressure to 31.5 MPa).
- After installation, cycle the valve at no-load, then verify at full 31.5 MPa operating pressure before production.
- Design service life: 8+ years in standard industrial environments with NBR seals (Viton available for higher temperatures).
How to Order
1-piece MOQ for samples, 7-working-day dispatch for standard orders from Ningbo Port, tiered pricing from 50+ pieces, OEM/ODM branding available.
OEM quantities: your brand on the valve
For maintenance companies and machine builders buying in volume, YXCHK offers OEM branding — your nameplate and your packing list, with the same 100% individual test record per unit. OEM orders keep the standard 7-day dispatch for stocked 4WE6 models; custom coil voltages or special seals extend lead time, confirmed at quotation.
Request an OEM quotation with your volumes and current 4WE6 codes via the contact page.
Frequently Asked Questions
Does replacing a Rexroth 4WE6 with a YXCHK valve require BOM or drawing changes?
No. YXCHK 4WE6 valves are manufactured to the ISO 4401-03 / DIN 24340 interface with identical dimensions, so they drop into the existing manifold without any BOM or drawing changes. Nameplate can even be marked with the original model number for seamless replacement.
What testing standards do YXCHK 4WE6 replacement valves meet?
Every valve is 100% factory tested (electrical continuity, internal leakage, peak-pressure test up to 31.5 MPa) with batch-archived traceable records, and is Intertek-certified. We recommend validating at full 31.5 MPa load on site.
Do you offer volume pricing for 4WE6 replacements?
Yes. MOQ is 1 piece for samples; orders of 50+ pieces enjoy tiered volume pricing. Standard orders ship within 7 working days, and OEM/bulk orders take 15-25 days. Contact sales for a price list.
Cross-Brand Compatibility
Because every YXCHK 4WE6 valve is built to the ISO 4401-03 / DIN 24340 interface, one replacement covers multiple brands. A single YXCHK 4WE6E60/CG24N9Z5L, for example, can stand in for a Vickers DG4V-3-2A, a Parker D1VW001CNJW or an ATOS DLOH-2A-D24B - all NG6 wet-solenoid directional valves with the same mounting surface, the same E-type spool center and the same DIN 43650 coil format. That means one spare model in your store room covers the most common valve families in North American and European machines. For machines with a non-standard code, follow the 3-step check above and send the original model number to our engineers - the cross-reference confirmation is free and returned within 24 hours.