ZD50×80×18 Double Spring Combined Skeleton Oil Seal High Temperature Oil Resistant Rectangular Structure For Loader Gearbox Extended Life Seal
Formulated for loader gearbox transmission systems operating under sustained high-temperature duty cycles, this ZD50×80×18 double spring skeleton oil seal utilizes a specially compounded FKM fluororubber lip material with superior thermal oxidative stability. Unlike standard NBR seals that harden and crack after prolonged exposure to hot gear oil, this FKM compound maintains its elasticity and sealing force across a continuous operating range of -20°C to +200°C without lip embrittlement. The material formulation incorporates advanced anti-aging additives that resist the degrading effects of EP (extreme pressure) gear oil additives, oxidation byproducts, and acidic contamination that accumulate over extended oil drain intervals. Combined with dual stainless steel tension springs that retain consistent spring force without corrosion fatigue, this seal is purpose-built for fleet operators and equipment owners implementing extended service interval programs who demand maximum mean time between seal replacements.
- ✅ 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
- ✅ FKM fluororubber lip compound rated for continuous service from -20°C to +200°C without hardening, cracking or compression set
- ✅ Advanced anti-aging additive package resists EP gear oil additives, oxidation acids and thermal degradation byproducts
- ✅ Corrosion-resistant stainless steel dual tension springs maintain consistent radial load throughout extended oil drain intervals
- ✅ Engineered for 3,000+ hour mean service life under normal operating conditions, reducing total cost of ownership and fleet downtime
| 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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