Cylinder Head 3966447, 3933422, 3929796, 3933370 Engine parts for Cummins 4BT3.9 B3.9 Gas Engine
| Product Name | Cylinder Head |
| Part Number | 3802339 3930915 3967430 3927330 3920394 3933370 3966448 |
| Origin | China |
| Engine Type | 3.9L 4BT 4BT 4B 4BTA 4BTAA 4B5.9 4BT3.9 B3.9 Engine |
| Production Capacity | 1000-2000 Pieces Per Month |
| Packing | Original Packing/Neutral packaging/Customer packaging |
| Application | Engineering Machinery, Heavy Truck,diesel engine |
| After-Service | Strict test before shipment/fast delivery |
Honesty comany are located in Chongqing City, China, specialized in complete engines and spare parts . Mainly sell Cummins engines and Cummins original parts, Dongfeng Cummins (DCEC), Xi’an Cummins (XCEC), Chongqing Cummins (CCEC) engines, Foton Cummins, mechanical engines 4BT3.9, 6BT5.9, 6CT8.3, L8.9, L10, M11, N14, NT855, K19, K38, K50, F3.8, F2.8 series, Cummins electronic control engine ISF, ISBe, ISDe, ISCe, ISLe, ISM11, ISX15 series and engineering machinery engine QSB 3.3 QSB5.9 , QSB6.7, QSC8.3, QSL9, QSM11, QSX15, QSK19 QSK38 QSK50 QSK23 QSK60 QSK45 series engines and all spare parts, almost all Cummins products, we can provide. Caterpillar Engines C27, C7, C9, C13, C15, C4.4, 3516, 3508, C32, C18, C0.5, 3616, 3516, C11, 3508… series engines and all spare parts. we can provide other spare parts and engines.sach as MAN and Scania,Deutz , perkins,Volvo Penta, ISUZU …etc
Core processing characteristics of cylinder head
(1) Valve system processing
Valve seat and guide: High precision boring/reaming to ensure tightness (valve seat Angle is usually 45°).
Valve size: Turbocharged models (e.g. 4BT3.9) may have larger diameter intake valves to improve intake efficiency.
Processing technology: multi-axis CNC machine tool processing, with special tools (such as CBN blade) to ensure surface roughness (Ra ≤ 1.6μm).
(2) Combustion chamber and airway
Combustion chamber shape: Vortex chamber design (B3.9 may be direct injection), requiring CNC milling to ensure volume consistency.
Intake and exhaust channels: The intake ports of turbocharged models (4BT3.9) need to be optimized for airflow dynamics and may be asymmetrical.
(3) Cooling and lubrication channels
Cooling water channel: deep hole drilling processing, aperture accuracy of ±0.1mm, to prevent leakage.
Oil passage processing: cross holes need to be deburred to avoid metal debris residue resulting in lubrication failure.
(4) Mounting surface and hole position
Cylinder head bonding surface: Flatness requirements ≤0.05mm, requiring precision grinding or milling.
Bolt hole: position tolerance ±0.05mm, thread processing using extrusion tapping (aluminum alloy cylinder head) or cutting tapping (cast iron)
- Cylinder Head 3966447, 3933422 for Engine gas engine 4B5.9 4BT3.9 B3.9, with list of Cummins cylinder heads, as below:
- Gallery
| Engine | Description | Part # | Part # | Part # | Part # | Part # |
| B3.9 | cylinder head | 3967460 | 3920394 | 3966448 | 3933370 | 3920005 |
| B3.9 | cylinder head | 3304570 | 3902521 | 3920485 | 3929736 | 3927278 |
| B3.9 | cylinder head | 3800338 | 3967444 | 3967451 | 3933424 | 3930913 |
| B3.9 | cylinder head | 3933494 | 3933419 | 3919357 | 3966450 | 3933418 |
| B3.9 | cylinder head | 3933417 | 3933421 | 3966449 | 3967432 | |
| B5.9 | cylinder head | 3802805 | 3904573 | 3905470 | 3910276 | 3911273 |
| B5.9 | cylinder head | 3917435 | 3919271 | 3919272 | 3920395 | 3925389 |
| B5.9 | cylinder head | 3925392 | 3927282 | 3927301 | 3930421 | 3930587 |
| B5.9 | cylinder head | 3930652 | 3930921 | 3930932 | 3930933 | 3934746 |
| B5.9 | cylinder head | 3934758 | 3934763 | 3934768 | 3934769 | 3934783 |
| B5.9 | cylinder head | 3938656 | 3966454 | 3967455 | 3967456 | 3967458 |
| B5.9 | cylinder head | 3917055 | 3917287 | 3920008 | 3922691 | 3925400 |
| B5.9 | cylinder head | 3927299 | 3934747 | 3966452 | 3967431 | 3991773 |
| B5.9 | cylinder head | 3927300 | 3967454 | 3967449 | 4941412 | 3968652 |
| B5.9 | cylinder head | 3930420 | 3934160 | 3934795 | 3966453 | 3934753 |
| B5.9 | cylinder head | 3930424 | ||||
| B5.9CNG | cylinder head | 4946426 | 3922739 | 3922730 | 3280055 | 3925391 |
| C8.3 | cylinder head | 3936152 | 3936153 | 3936180 | 3973493 | 4938632 |
| C8.3 | cylinder head | 3802468 | 3913111 | 3802466 | 3948583 | 3913493 |
| ISC | cylinder head | 3948583 | ||||
| L8.9 | cylinder head | 3945021 | 4929518 | 4935784 | 5259423 | 4987975 |
| QSL | cylinder head | 4942123NX | 4942138 | 4929288 | 4931398 | 3936256 |
| QSL | cylinder head | 4936714 | 5282706 | 4929519 | 5348475 | 4929518 |
| QSL | cylinder head | 4989710 | 4942139 | 4935787 | 5347974 | 4935786 |
| QSL | cylinder head | 4987984 | 5282720 | 4942137 | 4987983 | 5320745 |
| QSL | cylinder head | 4935785 | 5300890 | 5314801 | 5529506 | |
| QSL | cylinder head | 3969725 | 4991701 | 4942119 | 5348480 | 5259426 |
| ISL | cylinder head | 5255758 | 5348480RX | 5259426NX | 4942118 | 4942118NX |
| ISL | cylinder head | 3969374 | 3969374NX | 4939110 | 5348478 | 4936724 |
| ISL | cylinder head | 4936724NX | 5259421 | 5259421NX | 4942117 | 3969728 |
| ISL | cylinder head | 4987960 | 5282716 | 4942116 | 4987959 | 5320739 |
| ISL | cylinder head | 4987973 | 4942121 | 5320741 | 3973631 | 4942122 |
| ISL | cylinder head | 4987974 | 5282717 | 3973630 | 3973632 | 4928931 |
| ISL | cylinder head | 4942123 | 4942123NX | 4987975 | 5259423 | 5259423NX |
| ISL | cylinder head | 5348479 | 5348479RX | 3969734 | 5404060 | 4942507 |
| ISL | cylinder head | 4940243 | 4987963 | 5347972 | 5404063 | 5447765 |
| ISL | cylinder head | 5339587 | 5404059 | |||
| ISB4.5 | cylinder head | 4941496 | 3973655 | 4934249 | 3976095 | 3975144 |
| ISB4.5 | cylinder head | 3973654 | 4934248 | 3975143 | 3972624 | 3976093 |
| ISB4.5 | cylinder head | 3976094 | ||||
| ISB6.7 | cylinder head | 2831274 | 3973225 | 4936081 | 3977221 | 3943627 |
| ISB6.7 | cylinder head | 4983299 | 3977225 | 5272383 | 4941090 | 4983301 |
| ISB6.7 | cylinder head | 5361604 | 4317163 | 3977226 | 5364892 | 3971793 |
| ISB6.7 | cylinder head | 5397436 | 5361593 | |||
| ISF2.8 | cylinder head | 5271179 | 5271177 | 5271176 | 5271178 | 5265705 |
| ISF3.8 | cylinder head | 5264128 | 5258274 | 4995524 | 5258275 | 5271866 |
| ISF3.8 | cylinder head | 5271867 | 5271868 | 5258276 | 4995525 | 5271869 |
| QSM | cylinder head | 4962454 | 4083406 | 2864028 | 2864033 | 2864016 |
| K | cylinder head | 3081072 | 3640318 | 3068402 | 3811988 | 3811985 |
| K | cylinder head | 3640321 | 3641560RX | 3811987 | 3640323 | 3021692 |
| K | cylinder head | 3811989 | 3068171 | 3074623 | 3074623RX | 3081072 |
| K | cylinder head | 3081072RX | 3640323NX | 3640323RX | 3646326NX | 3646326RX |
| K | cylinder head | 3646323 | 3646323NX | 3646323RX | 3081064 | 3635021 |
| K | cylinder head | 3176619 | 3009088 | 3811986 | 3074622 | 3074622RX |
| K | cylinder head | 3627753 | 3081071 | 3081071RX | 3640322 | 3640322NX |
| K | cylinder head | 3646325 | 3646325NX | 3646325RX | 3068401 | 3072438 |
| K | cylinder head | 3072438RX | 3081070 | 3081070RX | 3640321NX | 3646324 |
| K | cylinder head | 3646324NX | 3646324RX | 3081073 | 3811981 | 3009089 |
| K | cylinder head | 3021692RX | 3009138 | 3018868 | 3081073RX | 3811988NX |
| K | cylinder head | 3811988RX | 3007572 | 205015 | 3007207 | 3009081 |
| K | cylinder head | 3634258 | 3081065 | |||
| N855 | cylinder head | 3007716 | 3007717 | 3418678 | 3411805 | 4915267 |
| N855 | cylinder head | 3055098 | 3041993 | 4915442 | 3418684 | 3046760 |
| N855 | cylinder head | 3411814 | 3050419 | 3060445 | 3053346 | BM60971 |
| N855 | cylinder head | 3411809 | 3050419RX | 3652807 | 3406730 | 3050418 |
| N855 | cylinder head | 3081224 | 3081224RX | 3406734 | AR10327 | 3008100 |
| N855 | cylinder head | 3675505 | 3008101 | 3008102RX | 3041994 | 3652600 |
| N855 | cylinder head | 3675506 | 3008094 | AR45196 | 3050418 | 3041992 |
| N855 | cylinder head | 3024375 | 3008089 | 3418529 | 135541 | 3801224 |
| N855 | cylinder head | 3041991 | 3409923 | 3411798 | 3053344 | 4915441 |
| N855 | cylinder head | 3652808 | 3081225 | 3406736 | 3411811 | |
| ISB5.9 | cylinder head | 4931564 | ||||
| QSX | cylinder head | 4962732 | 3682863 | 3683002 | 3683986 | 4331387 |
| QSX | cylinder head | 5413782 | 3683003 | 4101421 | 3683987 | 4925775 |
| QSX | cylinder head | 4962731 | 4393478 | 5413784 | 3104287 | 3104450 |
| ISX | cylinder head | 4386011 | 3104290 | 3104291 | 3104451 | 4393480 |
we have three main part of our products:
- Natural gas engine, diesel engine
- Cylinder head, cylnder block, crankshaft and other related engine parts.
- Hydraulic Piston motor and Pump.
we mainly foucs on Cummins engine and engine parts, also we produce some model for Caterpillar, Komatsu, Mercedes Benz, Isuzu, Mitsubishi, Hino and Yanmar contact us for our latest catalog.
yes, we could accept sample order, we have confidence on our products quality
accept OEM and ODM. We have OEM and ODM experience for Cummins, Mercedes Benz, Mitsubishi, Chryler, Iveco, Citroen, Geely and so on.
We offer power solution with engine assy for many construction machinery factories, generator sets factories, ships factories, and other companies.
Within 2 business days for items in stock; 10-30 days for items out of stock
Neutral carton, wooden case and pallet
Products quality is most important to us, our company alwalys supply good and stable quality products. our products have 6-12 months guarantee period, any quality problem during this period, we will send free engine parts to you.
T/T,L/C