1010320FB040 Oil Filter is a spin-on lubricating filter for JAC HFC4DB2-2E diesel engine lubrication circuit. It traps metal wear particles, carbon sludge and circulating impurities in engine oil, maintaining lubricant cleanliness to reduce friction of crankshaft, bearings and valve train. This aftermarket replacement filter resolves accelerated liner wear, oil passage blockage and bearing damage caused by filter clogging, filter media rupture and seal leakage of old filters. Built-in anti-drain back valve guarantees immediate oil supply at startup, lowering dry wear risk for JAC light trucks with frequent start-stop city delivery and short-haul cargo routes.

Product Advantages High-density composite filter paper delivers high dirt holding capacity and stable performance under high oil temperature. Integrated anti-drain back valve prevents oil backflow after engine shutdown. Reinforced internal support skeleton avoids filter collapse under fluctuating oil pressure. Every oil filter undergoes sealing and pressure testing before shipment, OEM thread and sealing gasket support quick spin-on installation during maintenance.

Applicable Models Designed for JAC light commercial vehicles equipped with HFC4DB2-2E diesel engine, widely used for township logistics and local cargo delivery fleets.

Oil Filter (OE No.1010320FB040, L52041) is a core part of engine lubrication system for JAC commercial vehicles. It filters metal particles, carbon deposits and other impurities from engine oil, maintains the cleanliness of lubricating oil, minimizes wear of engine moving components and prolongs engine service life.

• High-efficiency composite filter paper, high filtration accuracy and large dirt holding capacity
• Reinforced metal central tube to avoid filter paper deformation under high oil pressure
• Built-in bypass valve to ensure normal oil supply during cold start or filter blockage
• Premium nitrile rubber seal ring with good aging resistance to prevent oil leakage
• Manufactured to OEM standards for direct replacement

• Product Name: Oil Filter
• OEM Part Number: 1010320FB040, L52041
• Material: Filter paper, metal housing, nitrile rubber seal
• Application: JAC light-duty commercial vehicles and trucks
• Function: Remove contaminants from engine lubricating oil

FAQ

Q1: What happens if the bypass valve inside the oil filter opens repeatedly?
A1: Unfiltered dirty oil flows directly to moving parts, speeding up abrasive wear of bearings and cylinder liner.
Q2: Why must we clear old gasket residue before screwing on a new oil filter?
A2: Double gaskets create oil leakage, oil pressure drops suddenly and triggers engine wear.
Q3: Is pre-filling oil into the filter recommended for this diesel engine?
A3: Yes, pre-filling shortens oil pressure build-up time and reduces dry friction on startup.