Guangzhou Suining Auto Parts Co., Ltd.
| Supply Ability | 5000PCS per month |
| Vehicle Model | ISF3.8 |
| Payment Terms | L/C,D/A,D/P,T/T |
| Size | 138c*d412mm |
| OEM | 3908546F |
| Model Number | 1151211-0475-013 |
| Place of Origin | CHINA |
| Certification | ISO,CE |
| Brand Name | JAC |
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Product Specification
| Supply Ability | 5000PCS per month | Vehicle Model | ISF3.8 |
| Payment Terms | L/C,D/A,D/P,T/T | Size | 138c*d412mm |
| OEM | 3908546F | Model Number | 1151211-0475-013 |
| Place of Origin | CHINA | Certification | ISO,CE |
| Brand Name | JAC | ||
| High Light | 3908546F ，3908546F Flywheel Ring Gear ，Flywheel Ring Gear for JAC Truck | ||
3908546F Flywheel Ring Gear is the outer toothed ring press-fitted onto flywheel for JAC ISF3.8 diesel engine. Its gear teeth mesh precisely with starter pinion to transfer driving torque and rotate crankshaft for engine ignition. This aftermarket replacement ring gear fixes hard starting, loud grinding noise during cranking and starter drive damage caused by tooth chipping, surface abrasion and tooth profile deformation of old ring gears. Reliable meshing reduces starter motor load and avoids cranking failure for JAC light trucks operating on long-distance freight and heavy-load delivery routes.
Product Advantages Fabricated from medium carbon alloy steel with integral tooth surface quenching for excellent impact resistance and wear resistance. Precision hobbed tooth profile guarantees smooth engagement with starter pinion and less meshing noise. Standard outer diameter and tooth quantity match the flywheel groove for tight interference press fit. Every ring gear undergoes tooth inspection and hardness test before packing, OEM specification for press installation during engine overhaul.
| Item | Parameter |
|---|---|
| Part Number | 3908546F |
| Product Name | Flywheel Ring Gear |
| Matching Engine | JAC ISF3.8 |
| Material | Alloy Steel with Surface Hardening |
| Feature | Starter Torque Transfer, Hardened Teeth, Impact Resistant, Interference Fit Design |
| MOQ | Negotiable |
| Application | Starter Motor and Flywheel Meshing Cranking Assembly |
Applicable Models Fit for JAC light-duty commercial trucks equipped with ISF3.8 diesel engine, widely used for long-haul cargo transportation and heavy-load distribution.
FAQ
Q1: What signs tell that the flywheel ring gear is worn?
A1: Metallic grinding sound when cranking, starter slips and fails to turn the engine consistently.
Q2: What should we check before pressing the new ring gear?
A2: Inspect the flywheel seating groove for cracks, deformation or excessive wear.
Q3: What is the key point during hot pressing assembly?
A3: Control heating temperature properly, avoid overheating which will destroy the tooth hardness.
Company Details
Business Type:
Distributor/Wholesaler
Year Established:
1989
Total Annual:
30000000-35000000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
SuiNing Auto Parts Company (Abbrev. SN) is one of China’s leading auto parts supply chain enterprises. Founded in Guangzhou in 1989, SN adheres to the tenet of “customer-focused, market-oriented, competitive and innovative, quality-first”. &... SuiNing Auto Parts Company (Abbrev. SN) is one of China’s leading auto parts supply chain enterprises. Founded in Guangzhou in 1989, SN adheres to the tenet of “customer-focused, market-oriented, competitive and innovative, quality-first”. &...
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