Sinotruk HOWO Inlet Valve 082V04101-0536 – For WD615 MT07 Engines | OEM Quality

High-performance inlet valve for Sinotruk HOWO trucks, part number 082V04101-0536. Designed for WD615 MT07 engines. Made from heat-resistant alloy steel with precision grinding for perfect seat sealing.

Part Number 082V04101-0536
OEM Equivalent WG22041010536
Application Sinotruk HOWO A7, T5G, T7H, Sitrak C7H/C9H
Engine Model WD615.62 / WD615.77 / WD615.87 (MT07 Series)
Valve Type Inlet (Intake) Valve
Total Length 122.5 mm ± 0.2 mm
Stem Diameter 8.00 ± 0.01 mm
Head Diameter 44.5 mm
Seat Angle 45° (Precision Ground)
Material 21-4N Heat-Resistant Alloy Steel
Surface Treatment Chrome Plated Stem + Stellite Tip Coating
Working Temp Up to 850°C (Head), 400°C (Stem)
Hardness HRC 40–44 (Head), HRC 38–42 (Stem)
Certification ISO9001, CNHTC Quality Standard
Condition Brand New, Individually Packaged
Warranty 12 months against manufacturing defects
Origin China CNHTC 
Packaging Anti-rust paper + plastic sleeve + export carton

How to Replace the Inlet Valve (082V04101-0536) – Practical Tips

 Replacing a single inlet valve isn’t something you do every day — but when it’s burnt or leaking, there’s no way around it. Here’s how we do it right, based on real workshop experience: 

1.  Remove the cylinder head. You can’t access the valves without taking the head off. Drain coolant first, then follow proper bolt loosening sequence.  

2.  Disassemble the valve train. Take out the rocker arms, pushrods, and spring caps. Use a valve spring compressor to release pressure safely.  

3.  Extract old valve. Once the retainers are out, pull the old valve straight out. Check for scoring on the stem — that means the guide is worn.  

4.  Inspect the guide. Measure clearance with a bore gauge. More than 0.10 mm? Consider replacing or reaming the guide.  

5.  Install new valve. Slide the 082V04101-0536 in gently. Don’t force it. Make sure the tip is clean and flat before installing the spring.  

6.  Re-seat the spring and lock. Place the outer spring, inner spring (if applicable), and retainer. Compress and insert the split locks carefully — they love to pop out.  

7.  Grind the seat if needed. For best seal, have the seat lapped or professionally ground, especially if it’s an older head.  

8.  Check stem protrusion. After assembly, measure how far the stem sticks out — should match other valves within 0.3 mm.  

9.  Lubricate before reassembly. Apply a thin layer of molybdenum disulfide paste to the stem — prevents dry start-up wear.  

10.  Break-in matters. After reinstallation, run the engine at idle for 15 minutes. Avoid high RPM for the first 500 km.