ZD50×80×18 Double Spring Combined Skeleton Oil Seal Precision Direct-Fit Rectangular Structure For Loader Gearbox Quick Installation Seal
Designed for maintenance teams who demand zero-modification drop-in replacement, this ZD50×80×18 double spring skeleton oil seal is manufactured to exact OEM dimensional tolerances for CLG816, CLG818, LW160 and LW180 loader gearbox transmission assemblies. Every seal undergoes precision CNC machining of the outer metal case with a tolerance of ±0.05mm, ensuring a perfect press-fit into the housing bore without requiring sealant, shimming, or housing rework. The precisely ground sealing lip contact width is optimized to balance friction and sealing force, eliminating the break-in period typical of aftermarket alternatives. Dual calibrated tension springs deliver factory-specified radial load from the first rotation. For workshops and fleet service centers seeking to minimize bay time and eliminate comebacks from ill-fitting generic seals, this precision-machined direct replacement restores original sealing performance in a single installation step.
- ✅ Specification: ZD50×80×18, double spring combined skeleton oil seal
- ✅ Rectangular section structure, stable compression positioning, anti-extrusion deformation
- ✅ Dual tension spring design, automatic wear compensation, strong anti-leakage performance
- ✅ Reinforced steel skeleton + wear-resistant oil-resistant rubber lip
- ✅ CNC-machined outer metal case with ±0.05mm dimensional tolerance for guaranteed press-fit without sealant or shimming
- ✅ Precision-ground lip contact profile eliminates break-in period, delivering full sealing performance immediately upon installation
- ✅ Exact OEM-spec cross-section dimensions match CLG816, CLG818, LW160 and LW180 housing bores without modification
- ✅ Single-step drop-in replacement reduces typical gearbox reseal time by over 50% compared to generic aftermarket seals
| Part Name | Oil Seal |
| Engine No. | ZD 50x80x18 |
| Size(mm) | ZD 50*80*18 |
| Machine Model | CLG816,CLG818,LW160,LW180 |
| Material | FKM |
| Place of Origin: | Guangdong, China |
| Application | Excavator/Truck/Auto |
| Engine Type | Diesel |
| Condition | New |
| Packing | Neutral packaging |
| Quality | Oem/Aftermarket |
| Inside diameter | 50mm |
| Outside diameter | 80mm |
| Model | Engine | Model | Engine | Model | Engine |
|---|---|---|---|---|---|
| E40B | 4D32 | E300B | 4SA1 | E320B/BL | 3166 |
| E70 | 4D31 | E450 | 6D22-TC | E320C/CL | S6KT |
| E70B | 4D32 | E650 | S6B-TA | E322/322L | 3116 |
| E110 | 4D31T | E235B/C/D | 3306 | E325/325L | 3116 |
| E110B | S4K-T | E245B/D | 3406 | E325B/BL | 3116 |
| E120B | S4K-T | E307/C | 3406 | E325C | 3116 |
| E120/140 | 6D14 | E311B | 4D32 | E330/330 | 3306 |
| E180 | 6D14-T | E312C/CL | S4K | E330B/BL | 3306 |
| E200/B | S6K-T | E315C/CL | S4K | E330C | C9 |
| E240 | 6D15-T | E318B | S4K | E345B | C-9 |
| E240B | 3116-T | E320/320L Old | 3066 | E350/350L | 3306 |
| E300 | 4SA1 | E320/LNEW | 3066 | E375N | 3406 |
Q1: If I only know the excavator model, but can not offer parts No., what should I do ?
A: If possible, you can send us pictures of old products, name plate or the size for reference.
Q2: What is the warranty of the parts after I purchased?
A: The warranty is 6/12 Months based on the item details. For natural broken, 3 months. Guarantee genuine parts.
Q3: What's payment you can accept?
A: We can receive payment through T/T, HSBC, Paypal, ALI trade assurance.
Q4: When will I get the items after place order?
A1: In stock: 1-7days.
B2: Out of stock: It's according to your quantity. We will let you know when we quote.
Q5: How can I do if there is something wrong with the items?
A: Our products have been professionally tested and the quality is very stable, if you really found something wrong, pls contact us. We have a professional after-sales team to help you solve the problem.
Q6: What's package? Can you give me the package according my requirement?
A1: Yes, Standard packing, Neutral packing with wooden box or carton, as your customize.
B2: If you agree, we also have our own professional brand packaging
Q7: What is your main products ?
A: We are specialized in the excavator engine spare parts, for example Main cylinder block, cylinder head, crankshaft, overhaul kit, piston, cylinder liner, piston ring, size tile, camshaft, connecting rod, oil pump, water pump, valve series products, movement, side, cover, Supercharger, starter motor, alternator, oil nozzle, copper sleeve of oil nozzle, engine gear, etc. cover almost all parts of the entire engine.
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