LSL AUTOPARTLAO SENG LEE YON
BUILT ON EXPERIENCE.
TH/EN
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SINCE 1974 · PA MOK, ANG THONG

Workshop roots.
Practical answers.
Keep work moving.

Parts, machining, repairs and lubricants.
Connected by hands-on experience with the machinery you depend on.

Enquire about partsDiscover our story
CONNECTED BY CRAFTSMANSHIP
PARTS. PEOPLE.
PRACTICAL THINKING.
LAO SENG LEE YON / EST. 1974
OUR MACHINING WORKSHOP · ANG THONGOUR MACHINING WORKSHOP · ANG THONG
1974Where our story began
03Connected operations
~5Rai · approx. operating area
SCROLL TO EXPLORE
PARTS & SUPPLIESMACHINING & FABRICATIONHEAVY EQUIPMENT REPAIRSLUBRICANTS
Hia Chai in the Lao Seng Lee Yon parts warehouse
OUR STORY BEGAN IN1974.
01 / OUR STORY

More than parts.
A working understanding.

Our story began in 1974 with the machining and component repair work of Wanchai Khongprathinyapha, known to our customers as “Hia Chai”. The goal was practical: solve the problem and get machinery working again.

That workshop experience grew into a connected parts warehouse, machine shop and repair workshop at our base in Pa Mok, Ang Thong. Today, the next generation is also developing lubricant distribution and nationwide delivery through transport partners.

“Looking for the right part?
Ask Hia Chai.”
1974

A beginning in craftsmanship

Machining, component repairs and practical modifications for real working conditions.

GROWING TOGETHER

Built around real work

The parts warehouse and repair workshop grew alongside machining, supporting one another on the same site.

THE NEXT CHAPTER

Experience, carried forward

Developing lubricant distribution, delivery networks and conversations with manufacturing partners.

02 / INTEGRATED OPERATIONS

Three operations.
One connected approach.

Parts informed by repairs. Machining informed by use. A workshop with the warehouse close at hand.

From a working problem
to a practical component.

Turning, threading, component repair and modifications. We start with your drawing, sample and operating conditions to discuss a suitable approach.

  • Machining and repair of machinery components
  • Fabrication and modifications, including cargo-tricycle frames
  • Custom flanges for 6–10 inch PE pipes in sand-handling applications
Discuss machining / fabrication
03 / PARTS & SUPPLIES

Start with the part.
Or the problem.

Explore the relevant category, then share the machine model, part number or dimensions for our team to check.

Undercarriage & wear partsLSL / 01

Undercarriage & wear parts

Rollers, tracks and related components for heavy equipment applications.

BearingsLSL / 02

Bearings

Machinery and automotive bearings. Confirm part numbers and dimensions before ordering.

Seals & repair kitsLSL / 03

Seals & repair kits

Seals, O-rings and repair kits, matched to the required model and dimensions.

FiltersLSL / 04

Filters

Maintenance filters. Check the part number against your machine specification.

Belts & transmission partsLSL / 05

Belts & transmission parts

Belts and related components, selected by part number, dimensions and application.

Hydraulic parts & fittingsLSL / 06

Hydraulic parts & fittings

Hydraulic components, cylinders and fittings. Enquire with your machine details.

Lubricants & greaseLSL / 07

Lubricants & grease

Engine, hydraulic and gear oils, plus grease for the intended application.

Workshop parts & suppliesLSL / 08

Workshop parts & supplies

Fasteners, maintenance supplies and practical items for workshop use.

Categories shown: 8 / 8 · Original photographs show product categories and our warehouse. Please confirm specifications, pricing and availability with our team before ordering.

04 / LUBRICANTS & DISTRIBUTION

The next chapter.
Keep every system moving.

Built on workshop experience, our lubricant distribution includes Bangchak products alongside Shell and Pulzar for a range of applications.

Share the machine, manufacturer-required grade or specification, quantity and destination. Our team can check suitable products and coordinate delivery through transport partners.

Enquire about lubricants
BANGCHAKShellPULZAR
Bangchak lubricant drums at our operating site
THDelivery coordination
across Thailand
Bangchak signage at the Lao Seng Lee Yon operating site
05 / HOW WE WORK

Start a conversation.
Get closer to the right answer.

Clear machine and component information helps us assess your enquiry more effectively.

01

Tell us the task

Share the machine model, part number, dimensions or the issue you are seeing.

02

Check together

Our team reviews the details and requests further information where needed.

03

Confirm the details

Agree scope, price and availability before ordering or starting work.

04

Arrange the next step

Coordinate collection, delivery or an assessment at our operating site.

Grow with partners who understand real work.

We welcome discussions with verifiable manufacturers of undercarriage parts, seals, bearings, filters and hydraulic components.

↓ Thai company profile
PDF · 2026↓ English company profile
PDF · 2026
06 / LET’S TALK

Your next task.
Let’s talk it through.

Share the part or work you need, along with a way to reach you. Our team can use the details to discuss the enquiry and check requirements.

Parts enquiries+66 90 555 1423
Business & partnership email
Our operating base

Pa Mok, Ang Thong, Thailand
Please call before bringing machinery or components for assessment.

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