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JIATIAN’s Engine Oil Dipstick Tube is a critical component in engine oil level monitoring systems, and the Engine Oil Dipstick Tube is also a core offering in JIATIAN’s automotive pipe fittings product line, with the Engine Oil Dipstick Tube serving as a bridge between maintenance personnel and engine lubrication system status. As a high-tech enterprise rooted in Ningbo’s automotive parts manufacturing industry (evolved from Ningbo Xingxin Metal Products Factory established in 1995), JIATIAN has built a 32,000-square-meter production base (26,000-square-meter factory area) in Wanhou, Zhanqi Town, Yinzhou District—conveniently located 25km from Ningbo Liushi Airport and 5km from Ningbo Coastal Industrial Zone. Leveraging its advanced pipe forming equipment (including 10 CNC automatic pipe bending machines, 4 fully automatic laser welders, and an 800T hydraulic water expansion machine), JIATIAN’s Engine Oil Dipstick Tube products deliver stable performance across powertrain scenarios, from passenger cars to construction machinery.


1. Working Principle of Engine Oil Dipstick Tube

Installation & Sealing: The cylindrical tube is mounted to the engine oil pan via threaded or snap-on connections (a process optimized by JIATIAN’s hydraulic internal forming machines, which handle pipes of φ10–φ80 diameter and up to 1.5m length). Its integrated sealing ring and corrugated end (fabricated with JIATIAN’s industry-advanced water expansion corrugated pipe technology) form a closed channel that isolates the oil pan from external contaminants.
Level Detection: The oil dipstick inserts into the tube to reach the oil pan’s oil pool. After the engine cools, the dipstick’s oil adhesion level reflects the actual oil volume in the pan, while the tube’s smooth inner wall ensures the dipstick moves freely for accurate readings.
Auxiliary Fluid Management: For models with filler/drain functions, the tube’s end port acts as a dedicated channel for oil addition or removal, eliminating the need for disassembly of other engine components.


2. Product Specification & Performance Comparison

The following table compares JIATIAN’s Engine Oil Dipstick Tube series with conventional products, and differentiates between JIATIAN’s three core models based on application scenarios:

3. Application Cases of JIATIAN Engine Oil Dipstick Tube

Passenger Car Scenario: Adopted by domestic compact sedan manufacturers, JIATIAN Model A tubes have been installed in over 200,000 vehicles since 2021. The snap-on connection reduces assembly time by 15% for OEMs, while the corrosion-resistant alloy material has zero reported leakage issues over 3 years of operation.
Commercial Vehicle Scenario: A leading heavy-duty truck brand uses JIATIAN Model B tubes for its long-haul fleet. The integrated drain valve cuts oil change time by 20% for maintenance teams, and the reinforced threads withstand the vibration of 10-ton payloads without loosening.
Construction Machinery Scenario: JIATIAN Model C tubes are fitted to excavators operating in high-temperature mining environments. The heat-resistant alloy and laser-welded joints maintain structural integrity even under continuous 12-hour high-load operation, with a replacement rate 40% lower than conventional products.
All cases leverage JIATIAN’s comprehensive laboratory testing (including pressure and temperature cycling) to ensure compatibility with harsh working conditions.

4. Maintenance Guidance for Engine Oil Dipstick Tube

Proper maintenance extends the service life of the Engine Oil Dipstick Tube, and JIATIAN recommends the following steps :
Regular Sealing Inspection (Every 10,000km): Check the tube’s sealing ring for cracks or deformation. JIATIAN’s corrugated end seals are designed for 50,000km of service, but extreme environments may require earlier replacement .
Contamination Removal (Every 20,000km): Clean the tube’s inner wall with specialized engine cleaning fluid to prevent sludge buildup (JIATIAN’s smooth inner wall, formed by hydraulic internal machines, reduces sludge adhesion by 30% compared to standard tubes).
Connection Tightness Check (Before each heavy-load operation): For threaded models, ensure torque meets JIATIAN’s factory specifications (15–20 N·m for passenger cars, 25–30 N·m for commercial vehicles) to avoid oil leakage.
Replacement Criterion: Replace the tube if it shows corrosion pitting (depth > 0.5mm) or structural deformation—JIATIAN’s threaded/snap-on designs enable replacement in under 30 minutes without professional tools.

5. FAQ About JIATIAN Engine Oil Dipstick Tube

Q1: Can JIATIAN’s Engine Oil Dipstick Tube be customized for non-standard engine models?
A: Yes. JIATIAN’s R&D and processing centers (equipped with 8 large machining centers and 10 hydraulic internal forming machines) support custom tube lengths (up to 1.5m) and diameters (φ10–φ80).

Q2: How does JIATIAN ensure the high-temperature resistance of its tubes?
A: JIATIAN uses high-temperature alloy materials and processes them via 2 large-scale brazing furnace assembly lines, which create uniform material density.

Q3: What is the delivery lead time for JIATIAN’s Engine Oil Dipstick Tube?
A: For standard models, lead time is 7–10 working days (supported by JIATIAN’s 26,000-square-meter factory and automated production lines).

JIATIAN’s Engine Oil Dipstick Tube series embodies the company’s commitment to innovative technology and outstanding quality, with each product manufactured to promote the reliability of automotive lubrication systems and drive industry progress in automotive pipe fittings.