Products Description

This is a valve stem oil seal VG1560040032 for HOWO heavy‑duty trucks, a key part of the engine system. It blocks excess engine oil from flowing into the combustion chamber, effectively preventing engine oil burning and blue exhaust smoke, maintaining stable engine combustion performance. Made of high‑quality oil‑resistant and anti‑aging rubber material, it maintains excellent sealing performance under high‑temperature engine working conditions. It meets OEM specifications perfectly, durable and easy‑to‑install, a reliable replacement part for HOWO WD615 two‑valve engine series. cad5e6df5978a1a8eb3283d53620306b

Applicable

① Applicable Vehicles: Fits HOWO heavy‑duty trucks equipped with WD615 two‑valve engines, also compatible with related heavy‑duty machinery using the same power unit.

② Adaptable System: Matches perfectly with original engine valve assemblies, valve guides and camshaft components. Supports direct installation without extra modification, cutting or drilling work.

③ OE Reference Number: VG1560040032

④ Interchangeability: Produced strictly according to OEM original dimension standards, including inner diameter, outer diameter and overall height. Can directly replace original parts, convenient for disassembly and assembly, saving maintenance time and labor expense.

⑤ Value‑added Service: We can confirm part compatibility according to your truck model, engine model and VIN code. We also offer practical tips for installation inspection and regular engine maintenance, helping to avoid premature failure caused by improper fitting.

Materials & Craftsmanship

Core Materials

This VG1560040032 valve stem oil seal adopts premium oil‑resistant fluororubber as main raw material, with reinforced metal inner skeleton. It resists high‑temperature erosion from engine cylinder head, oil mist corrosion and long‑term reciprocating friction from valve stem. It will not easily harden, crack or deform under continuous high‑temperature working environment. The lip structure is precisely designed to keep stable contact pressure on the valve stem, realizing reliable oil‑scraping and oil‑sealing effect. The built‑in tension spring keeps lasting clamping force, avoiding sealing failure after long‑time service. It can adapt to the harsh working environment inside heavy‑duty truck engines, to sustain stable sealing performance during long‑haul operation.

Surface Treatment

The rubber sealing lip is precision‑polished to reduce friction wear against valve stem. The embedded metal skeleton goes through anti‑rust treatment to prevent oxidation and rust inside cylinder head. The whole seal is treated with anti‑aging and oil‑resistant process. It can keep stable performance under high‑temperature, oil‑soaked working conditions, effectively delaying rubber aging, cracking and oil leakage risks.

Production Craftsmanship

We adopt mature rubber vulcanization and metal insert bonding process to guarantee tight combination between rubber body and metal skeleton. All key dimensional tolerances are strictly controlled in production to ensure good fitting with original valve stem and valve guide. Each finished oil seal undergoes strict sampling inspection: dimension check, oil‑resistance aging test and sealing performance test. Defective products will be eliminated batch by batch. We follow OEM production standards, so our spare parts achieve equivalent performance and service life as original factory parts.

Production Capacity

We own mature production lines and complete testing facilities. Stable monthly output and sufficient stock support bulk wholesale and large‑volume export orders. Sample service and customized options are available to satisfy purchasing demands from distributors, repair workshops and vehicle manufacturers.

FAQ

Q: What makes this valve stem oil seal better than ordinary aftermarket parts?

A: It is made of high‑grade oil‑resistant rubber with metal reinforcing skeleton. It features outstanding high‑temperature resistance and anti‑aging property, not easy to become brittle or leak oil. Precision lip design ensures stable oil scraping effect. It helps you avoid common troubles like engine oil burning and blue smoke exhaust caused by failed oil seals.

Q: Is the quality reliable? How long is its service life?

A: All products are manufactured following OEM standards and pass strict lab performance tests. Under normal engine working conditions and correct installation, it can deliver long‑term stable sealing performance, suitable for heavy‑duty transport and frequent working scenarios.

Q: What benefits can you get after replacement?

A: It effectively stops engine oil entering combustion chamber, eliminates blue exhaust smoke and reduces oil consumption. It protects piston, piston ring and cylinder components from oil‑carbon accumulation, lowers later engine maintenance cost, and restores normal working condition for your HOWO engine.