LScoolers

Frequently Asked Questions

Everything you need to know about ordering, OEM matching, shipping, and working with us.

Are you a manufacturer or a trading company?

We are a China-based factory focused on engine cooling and oil management parts for B2B buyers. Our core range includes oil coolers, oil cooler assemblies, oil filter housing assemblies, and heater control valves for aftermarket replacement and OEM/ODM cooperation.

What products do you mainly manufacture?

Our main products include engine oil coolers, oil cooler assemblies, oil filter housing assemblies, and heater control valves. We support standard replacement supply as well as project-based development according to OEM numbers, drawings, samples, or confirmed applications.

Do you manufacture oil cooler assemblies with filter housing?

Yes. We support oil cooler assemblies and oil filter housing assemblies based on OE structure, OEM references, or customer drawings. Assembly content may vary by model, so we confirm the exact configuration before quotation and production.

Can you match OEM numbers and cross references?

Yes. OEM number matching is one of the key steps in our quotation process. Buyers can send OEM numbers, competitor references, application details, or photos so we can reduce mismatch risk before order confirmation.

Can you develop parts based on drawings or samples?

Yes. For selected projects, we can review samples, technical drawings, dimensions, sealing requirements, and material requests for development or production evaluation. This is useful for OEM replacement programs, private label projects, and specialized aftermarket demand.

Do you support trial orders before bulk purchasing?

Yes. We support practical B2B cooperation, including trial orders for suitable items. This helps importers, wholesalers, and distributors verify quality, market response, and fitment before moving to larger wholesale orders.

Can you provide OEM/ODM and private label packaging?

Yes. We support OEM/ODM cooperation for packaging, labeling, barcode requirements, and selected product customization. Please share your branding or packaging standards when requesting a quotation.

How do you control leakage, pressure, and durability?

Quality control depends on the product type and OE requirement, but we focus on material consistency, machining accuracy, sealing performance, and pressure or leakage related checks during production. Buyers can also request additional inspection requirements before shipment.