CUMMINS Factory N14 Factory High Performance Diesel Roj Injector 3411767 3411765 3411760 3411761 Rau Cav N14 Original Tshiab Injector

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CUMMINS Factory N14 Factory High Performance Diesel Roj Injector 3411767 3411765 3411760 3411761 Rau Cav N14 Original Tshiab Injector
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c-ummins Fuel Injector 3411760 yog lub siab -kev ua tau zoo OEM- qib precision tivthaiv tshwj xeeb tsim rau c-ummins N14 series diesel xyaw, npog CELECT hluav taws xob tswj variants, CELECT Plus variants, thiab tag nrho cov tshuab N14 qauv. Raws li lub hauv paus tseem ceeb ntawm lub cav patented PT (siab-Lub Sijhawm) roj cov khoom siv-c-ummins' iconic thev naus laus zis-nws yog tsim los nrog qhov tseeb heev kom atomize diesel roj rau hauv ultra-zoo, sib npaug faib cov tee dej, xa lawv mus rau chav combustion chamber nrog cov sij hawm muaj tseeb, kev ua haujlwm siab, ruaj khov siab. Qhov no ncaj qha cuam tshuam lub cav lub zog tso zis, roj efficiency, thiab ntev - lub sij hawm ua hauj lwm kev cia siab rau, zoo kawg nkaus ua tau raws li lub cav diesel lub ntsiab cai ntawm kev combustion efficiency thiab compression ratio siab. Nrog micron-theem machining raug, nws koom ua ke siab -sensitivity hydraulic servo system thiab siab -cov khoom siv hluav taws xob zoo (solenoid li qub) rau cov khoom siv hluav taws xob, tso cai rau ECU kom tswj tau cov roj txhaj tshuaj lub sijhawm, ntim ntim, thiab txhaj tshuaj. Ua los ntawm siab -lub zog cua sov- tiv taus alloy steel los ntawm kev kho cua sov nruj thiab coated nrog tshwj xeeb los tiv thaiv- xeb, tiv thaiv- coj cov txheej ceramic, cov tshuaj no muaj kev ua haujlwm zoo, muaj peev xwm tiv taus huab cua ua haujlwm xws li kub siab (txog 575 degree), siab siab (txog li 3 bar), siab siab (txog 3 bar). Nws tau txais kev tshaj lij dual - tswj thev naus laus zis - hluav taws xob CELECT tswj rau N14 cov qauv hluav taws xob thiab kev tswj xyuas qhov tseeb rau cov khoom siv sib txawv - ua tiav ultra- qhov tseeb roj metering (yuam tsawg dua los yog sib npaug rau ± 0.025%) thiab cov lus teb ceev ceev (<0.50ms), ua haujlwm tau zoo txawm tias cov khoom siv hluav taws xob tsis zoo kev hloov. Lub siab -precision 7-qhov qis-inertia nozzle, kho nrog anti-carbon deposition thiab anti-clogging nano- txheej, ua kom tiav roj atomization, txhawb kev combustion tag nrho, txo cov roj noj los ntawm 32}35{{43} Ua ntej-2002 thiab cov qauv kev lag luam muaj feem cuam tshuam, thaum tseem txo cov pa roj carbon deposits thiab ncua lub cav lub neej kev pab cuam. Raws li kev hloov pauv OEM ncaj qha, nws zoo sib xws rau thawj lub cav qhov ntev ntawm kev teeb tsa, kev sib txuas, thiab hluav taws xob / tshuab tsis siv neeg, tsis tas yuav hloov kho- ions thaum lub sijhawm teeb tsa, uas txo cov sijhawm saib xyuas thiab nqi zog. Txhua chav tsev tau dhau 100% ua ntej-Kev xa khoom xa tuaj kuaj, suav nrog kev nruj nruj, ntsuas tus nqi ntws, tshuaj ntsuam xyuas qauv, thiab kev sim qaug zog, ua raws li ISO 9001 thiab TS 16949 daim ntawv pov thawj zoo{51}}ations. Kev siv dav hauv cov tsheb loj- cov tsheb thauj khoom hnyav, cov khoom siv hluav taws xob muaj hluav taws xob, kev tsim kho tshuab, roj av fais fab modules, thiab lwm yam khoom siv nruab nrog c-ummins N14 cav, nws muab kev ntseeg siab, ntev - kav ntev, thiab tus nqi- kho kom zoo rau cov neeg siv khoom. Tshwj xeeb tsim rau N14 series cav, nws tsis sib xws nrog ISBE, M11, QSM11, lossis lwm yam c-ummins cav series, kom ntseeg tau tias kev ua haujlwm zoo sib xws thiab kev nyab xeeb ntawm kev ua haujlwm. Nws tsim ua raws li c-ummins 'PT roj system cov ntsiab lus thiab lub cav diesel lub siab-compression, high-efficiency yam ntxwv, optimizing combustion efficiency thiab complementing lub cav lub inherent zoo ntawm siab torque thiab tsis muaj roj noj. Nws kuj txhawb kev ntim khoom yooj yim thiab kev xaiv xa khoom kom tau raws li cov neeg siv khoom sib txawv.
Kev faib tawm yam khoom
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Product Description:

OE NO 3411760
OE Nr 1 3411767
  Khoom siv Original tshiab CUMMINS INJECTOR

Cav

CUMMINS Cav

Tsheb Model

CUMMINS

1. Cov Ntaub Ntawv Cov Khoom Siv Yooj Yim & Cov Ntsiab Lus Tshwj Xeeb-ations

General No.

Khoom npe

OEM Cross Reference Numbers

Core Specific-ations

3411760

c-ummins Fuel Injector

3411760, 341-1760, 3411760RX, 3411691, 3411759, 3411759, 3411766, 3409975, 3087560, 3087733, 30838436, 658,609 ib 632760

Khoom siv: High-Lub Zog Thaum tshav kub kub-Resistant Alloy Steel (nrog Anti-Corrosion & Anti- Hnav Ceramic Txheej); Hom: CELECT Electronic Control / Precision Mechanical Fuel Injector; Qhov hnyav: 1.93kg (4.25 lbs); Loj: 14.8 × 5.6 × 3.9 nti (37.6 × 14.2 × 9.9cm); Txhaj Siab: Txog 3150bar; Lub sij hawm teb: <0.50ms; Daim ntawv pov thawj -ation: ISO 9001, TS 16949; Nozzle Hom: Siab-Precision 7-Qhov Tsawg-Inertia Nozzle (Anti-Carbon Deposition, Anti-Clogging Nano- Txheej, Optimized Flow Channel rau N14 Combustion Chambers); Hom Valve: Kaw-Type (ua kom cov roj nrawm nrawm- tawm yam tsis muaj dej); Tau tshaj c-ummins PT roj system; Hom roj: Tsawg-Sulfur Diesel (max 10ppm sulfur); Ua haujlwm kub: -44 ℃ to 575 ℃ ; Coil Resistance: High Resistance (12 ~ 15Ω) rau Electronic Variants; Ib pob Loj: 18 × 15 × 15cm; Ib qho khoom hnyav tag nrho: 1.45kg; Warranty: 6-12 lub hlis (raws li OEM seem qauv); Yam tsawg kawg nkaus Order Quantity: 1 PC.

2. Khoom nta & Kev sib tw zoo

General No.

Khoom npe

OEM Cross Reference Numbers

Nta & Qhov Zoo

3411760

c-ummins Fuel Injector

3411760, 341-1760, 3411760RX, 3411691, 3411759, 3411759, 3411766, 3409975, 3087560, 3087733, 30838436, 658,609 ib 632760

1. Tag nrho kev sib raug zoo nrog c-ummins N14 CELECT hluav taws xob qauv, CELECT Plus variants, thiab tag nrho cov tshuab N14 qauv, zoo kawg nkaus txuam lub cav patented PT roj system kom optimize combustion efficiency thiab lub hwj chim tso zis, complementing lub diesel cav lub siab -torque, low-fuel{201}; 2. High-lub zog cua sov- tiv taus alloy steel nrog nruj kev kho cua sov thiab ceramic txheej txhim kho hnav tsis kam thiab corrosion kuj, ncua kev pab cuam lub neej mus rau 26,{11}} cov sij hawm ua hauj lwm nyob rau hauv hnyav siab - kub thiab siab - siab ib puag ncig, adapting rau lub cav lub sij hawm ntev {{{14} thiab sh load} applic{16}}cov xwm txheej xws li mines, oilfields, chaw tsim kho, thiab tshuab ua liaj ua teb; 3. Kev sib koom ua ke siab -rhiab heev hydraulic servo system thiab hwm cov khoom siv hluav taws xob tswj hwm (solenoid li qub) rau cov khoom siv hluav taws xob sib txawv, ua rau ECU tswj xyuas lub sijhawm txhaj tshuaj, ntim thiab tus nqi, ua tiav ultra{19}} qhov tseeb roj ntsuas (yuam kev tsawg dua lossis sib npaug li ± 0.025% kev kho qhov ntsuas; 4. High-precision 7-qhov qis-inertia nozzle nrog anti-carbon thiab anti-clogging kev kho kom zoo ib yam thiab zoo roj atomization, txhawb kom tiav combustion, txo cov roj noj los ntawm 32-35%, thiab optimizing 3 HP 20 tawm tawm (30) cav roj kev lag luam thiab siab - lub zog zoo; 5. 100% ua ntej- kev sim xa khoom (siab, ntws, tshuaj tsuag, qaug zog), suav nrog kev tshuaj xyuas ultrasonic thiab xau, xyuas kom xoom xau, tsis muaj dej, thiab OEM-kev ua tau zoo sib xws, ua tau raws li kev sib khi nruj thiab cov tshuaj tsuag zoo raws li cov qauv ntawm cov roj txhaj tshuaj thiab ISO 9001/TS 169449{0}certific standard; 6. OEM-tshaj tsim, hloov ncaj qha yam tsis muaj kev hloov kho-ation, yooj yim installation nrog siab- cov ntsaws ruaj ruaj zoo rau kev kho ceev, raws li lub cav qhov yooj yim txij nkawm nta; 7. Txhim kho siab- qhov kub thiab txias (txog 575 degree) thiab tiv thaiv- kev ua haujlwm vibration, haum rau ntev -lub sij hawm hnyav- thauj khoom ntawm kev tsim kho tshuab, hnyav- cov tsheb thauj khoom, cov khoom siv roj av, thiab cov tshuab ua liaj ua teb xws li tsheb laij teb thiab cov tshuab ua liaj ua teb '{5}, adapting xwm txheej; 8. Optimized internal flow channel txo cov roj tsis kam, txhim kho kev xa khoom zoo thiab txuas ntxiv rau lub tshuab ua haujlwm lub neej, sib piv PT roj system cov qauv tsim; 9. Reinforced sealing qauv tiv thaiv cov roj to, ua kom cov roj ruaj khov thiab txo cov kev pheej hmoo ntawm kev ua haujlwm, ua tau raws li cov kev xav tau ntawm cov roj diesel; 10. Advanced anti-clogging technology tiv thaiv nozzle blockage los ntawm impurities, txo txij nkawm zaus thiab ua hauj lwm downtime, haum rau hnyav plua plav-ib puag ncig nyob rau hauv mining, tsim, thiab kev ua liaj ua teb; 11. Qhov sib txawv ntawm qhov sib txawv ntawm ISBE, M11, QSM11 thiab lwm yam c-ummins series, zam kev teeb tsa tsis raug thiab ua kom lub cav ua haujlwm muaj kev nyab xeeb; 12. Ua raws li c-ummins thoob ntiaj teb cov qauv zoo, txhawb nqa los ntawm kev ua tau zoo thiab kev txhawb nqa ntev ntev-, raws li lub cav lub koob npe nrov thoob ntiaj teb rau kev ua haujlwm ntev; 13. Optimized atomization txo lub cav carbon deposition, txhim kho lub cav huv si thiab txuas ntxiv tag nrho lub cav kev pab cuam lub neej, ntxiv rau lub cav lub zog tsim; 14. Kaw- hom valve tsim kom paub meej cov roj nrawm nrawm- tawm yam tsis muaj dripping, ua tau raws li cov haujlwm tseem ceeb ntawm cov cav diesel thiab tiv thaiv cov roj pov tseg; 15. Kev hloov pauv dav dav ntawm qhov kub thiab txias (-44℃txog 575 degree), haum rau huab cua txias thiab siab- qhov chaw ua haujlwm kub, nthuav dav siv-ation scope rau toj siab, roob, thiab qhov siab siab; 16. Ua tau zoo nrog cov roj tsawg-sulfur diesel, tiv thaiv cov khoom siv hauv qhov tseeb thiab ua raws li cov qauv emission ib puag ncig; 17. High-resistance coil tsim rau cov khoom siv hluav taws xob ua kom muaj kev sib kis tau ruaj khov thiab ua haujlwm ntev ntawm cov khoom siv hluav taws xob tswj; 18. Optimized spray lub kaum sab xis (158 degree) zoo kawg nkaus phim N14 combustion chamber tsim, ntxiv kev txhim kho combustion efficiency, txo suab nrov, thiab txhim khu lub cav stability, nyob rau hauv txoj kab nrog c-ummins ' advanced combustion tswj tshuab; 19. Cov kev xaiv ntim tau yooj yim muaj, suav nrog OEM ntim thawj, ntim nruab nrab, lossis ntim ntim raws li cov neeg siv khoom xav tau.

3. Compatible Equipment & Applic-ation Scenarios

General No.

Khoom npe

OEM Cross Reference Numbers

Cov cuab yeej siv tau zoo & siv tau -ations

3411760

c-ummins Fuel Injector

3411760, 341-1760, 3411760RX, 3411691, 3411759, 3411759, 3411766, 3409975, 3087560, 3087733, 30838436, 658,609 ib 632760

Tshwj xeeb tshaj yog siv tau nrog c-ummins N14 series diesel xyaw (CELECT electronic variants, CELECT Plus variants, thiab tag nrho cov tshuab N14 qauv; CPL: 2402, 2603, 2802, 2901, 3001, 3101, 3201); hnyav- cov tsheb thauj khoom (Peterbilt 379, Kenworth W900, Freightliner FLD, tsheb thauj khoom, tsheb thauj khoom, ntev- tsheb thauj khoom); industrial generator sets (355-1250kW), leveraging lub cav siab - tso zis kev ua tau zoo rau ruaj khov fais fab mov, uas dlhos nrog lub siab zog zoo ntawm diesel xyaw; hnyav siv tshuab (bulldozers, txoj kev rollers, teb drilling rigs, excavators, pob zeb crushers, loaders); oilfield thiab zog sector fais fab modules (xws li 700-type, 1800-type, 2000- hom fracturing tsheb thauj khoom thiab lwm yam khoom siv roj av); dej twj tso kua mis thiab irrigation systems; ua liaj ua teb machinery ( tsheb laij teb, sib sau qoob loo); thiab lwm yam khoom siv nruab nrog N14 cav. Nws kuj tseem tsim nyog rau cov tsheb thauj khoom xws li Terex 3310B, 3311E, TR100, Sany Heavy Industry SRT33, SRT55, thiab Komatsu-Dresser 630E, 730E, as well as Unit-Rig R170, Xiang SF310 thiab electric wheel. tsheb mining. Haum rau qhov chaw ua haujlwm hnyav nrog cov plua plav siab, cov av noo siab, nquag ua haujlwm hnyav- thauj khoom, cov sijhawm ua haujlwm ntev ntev, thiab siab - qhov kub thiab txias, yoog raws li lub cav rugged tsim. Nws kuj tseem siv tau rau cov tsheb engineering thiab cov tshuab ua liaj ua teb ua haujlwm hauv toj siab, roob siab, siab -qhov siab, thiab qhov chaw txias txias, hloov mus rau qhov chaw nyuaj thiab kev ua haujlwm hnyav vim nws qhov dav dav ntawm qhov kub thiab txias. Raws li lub ntsiab lus tseem ceeb ntawm lub tshuab hluav taws xob diesel, nws ua kom cov roj ruaj khov rau ntau yam N14- cov cuab yeej siv nyob rau hauv kev ua haujlwm sib txawv, ua tiav lub cav siv dav dav hauv mining, oilfield, kev tsim kho, tsim hluav taws xob, thiab kev ua liaj ua teb. Tsis sib haum nrog ISBE series engines, M11 series engines, QSM11 series engines, los yog lwm yam c-ummins engine series, tshwj xeeb tshaj yog tsim rau N14 series los xyuas kom meej kev ua tau zoo sib xws thiab ua hauj lwm kev nyab xeeb, tsis txhob muaj kev puas tsuaj rau lub cav roj mov system. Nws 7-qhov nozzle tsim thiab optimized spray lub kaum ntse ntse ua rau nws tshwj xeeb tshaj yog haum rau N14 cav siv nyob rau hauv hnyav-lub luag hauj lwm nyob rau hauv txoj kev loj, industrial, oilfield, thiab ua liaj ua teb applic-ations yuav tsum tau muaj zog, high efficiency, thiab ruaj khov kev ua tau zoo.

4. Cov Lus Qhia Txog Kev Pov Hwm Zoo & Kev Saib Xyuas

General No.

Khoom npe

OEM Cross Reference Numbers

Quality & Maintenance

3411760

c-ummins Fuel Injector

3411760, 341-1760, 3411760RX, 3411691, 3411759, 3411759, 3411766, 3409975, 3087560, 3087733, 30838436, 658,609 ib 632760

6-12 lub hlis tus qauv lav (raws li cov qauv kev lag luam rau OEM khoom seem); 100% ua ntej- kev kuaj xa tuaj, suav nrog kev tu ultrasonic, kev nruj nruj, kev ntsuas tus nqi ntws, thiab tshuaj ntsuam xyuas qauv, kom ua tau raws li OEM cov kev xav tau ua haujlwm thiab kev ua haujlwm ruaj khov, ua raws li cov qauv tshuaj xyuas rau cov khoom siv txhaj tshuaj precision thiab c-ummins 'cov qauv zoo. Cov txheej txheem kev saib xyuas: Siv huv huv siab- qib qis-sulfur diesel (max 10ppm sulfur) los tiv thaiv cov khoom siv hauv nruab nrab (xws li solenoid li qub rau cov khoom siv hluav taws xob sib txawv, plungers rau cov khoom siv sib txawv, thiab 7-qhov nozzles- qhov tseem ceeb ntawm qhov injector); Hloov cov roj lim txhua 5,500-7,500 teev ua haujlwm, ua raws li lub cav tu lub voj voog; tshuaj xyuas cov dej xau, hnav, thiab cov pa roj carbon deposits txhua 300 teev ua haujlwm; tsis txhob disassembling lub injector yam tsis muaj kev cob qhia los tiv thaiv kev puas tsuaj rau cov khoom tseem ceeb uas txiav txim siab qhov kev ua tau zoo ntawm cov twj tso kua mis, tshwj xeeb tshaj yog cov hydraulic servo system thiab cov khoom siv hluav taws xob tswj; khaws cov tshuaj ntxuav kom huv thaum lub sijhawm teeb tsa kom tsis txhob muaj plua plav thiab cov khib nyiab nkag mus rau hauv cov khoom siv sab hauv, uas tuaj yeem thaiv 7-qhov nozzle thiab cuam tshuam rau atomization; khaws cia rau hauv qhov chaw qhuav, huv si kom tsis txhob ya raws thiab plua plav puas, thiab tsis txhob raug huab cua kub thaum khaws cia. Tus me nyuam: 3-7 hnub ua hauj lwm (tus qauv), 1-3 hnub ua hauj lwm (kub); txoj kev xa khoom suav nrog kev nthuav qhia, huab cua freight, hiav txwv freight, thiab tsheb thauj mus los raws li cov neeg siv khoom xav tau; nruab nrab lossis customized ntim yog muaj, nrog cov ntaub ntawv ntoo lossis cov khoom siv tiv thaiv zoo li qub los tiv thaiv cov khoom siv hauv lub sijhawm thauj mus los. Nco tseg: Paub meej tias lub cav qauv (N14 series nkaus xwb) thiab OEM hla tus lej siv ua ntej yuav khoom kom tsis txhob muaj teeb meem yuam kev; tsis sib xws nrog ISBE series injectors (xws li 0 445 120 007) thiab QSM11 series injectors; cores rov qab txoj cai muaj (cores yuav tsum tau xa rov qab tsis pub dhau 30 hnub rau tag nrho cov tseem ceeb credit); video Hoobkas tshuaj xyuas yog muaj raws li qhov kev thov. Cov khoom lag luam yog cov khoom lag luam zoo thiab ua haujlwm raws li cov khoom lag luam txhim khu kev qha rau cov tshuab hluav taws xob diesel cav, txhawb kev pabcuam OEM thiab kev pabcuam raws sijhawm.

   
   

N14

341176

3073995F

3080766

3080931F

3081315F

3083622

3083846

3083846T

3083848F

3087558F

3087560

3087733

3087807

3095086

3407776

3409975

3411381

3411385

3411691

3411759

3411760

3411761

3411762

3411764

3411765

3411766

3411766F

3411767

3411767T

4307516

4307516N

4307776

4307795

4384360

4902924

6087807

                 
                 
                 
                 
 

Cummins Roj Injector Series - Cav - Cov Khoom Siv Daim Ntawv Thov

Roj Injector / Cav Series Common Injection Technology Cav Platform Cov cuab yeej siv zoo / kev siv
B Series (4BT / 6BT) Mechanical / Early Electronic 4 BT, 6 BT, 5.9 L Lub teeb- cov tsheb thauj khoom, cov khoom siv tsim kho, cov tshuab hluav taws xob
IB Series Common Rail ISB 5.9, SIB 6.7 Cov tsheb thauj khoom, lub teeb - tsheb thauj mus los
ISC Series Common Rail TSI 8.3 Nruab nrab - tsheb thauj khoom, tsheb npav, khoom siv
ISL Series Common Rail TSI 8.9 Tsheb thauj mus los, hnyav- tsheb thauj khoom, tsheb thauj khoom
ISZ Series Common Rail ZIB 13 Heavy- tsheb thauj khoom, cov khoom siv ua haujlwm
ISM Series Common Rail IB 10.8 Hnyav- tsheb thauj khoom, tsheb ua haujlwm
N14 Series Electronic Unit Txhaj Tshuaj N14 Heavy - tsheb thauj khoom, cov khoom siv tsuas
M11 Series Electronic Unit Txhaj Tshuaj M11 Tsheb thauj mus los, tsheb npav, khoom siv tsim kho
ISX Series High -Pressure Common Rail ISX 15 Heavy- tsheb thauj khoom, kev tsuas, cov khoom siv roj av
QSX Series High -Pressure Common Rail QSX 15 Mining tsheb thauj khoom, cov khoom siv ua haujlwm
QSB Series Common Rail QSB 4.5 / 6.7 Kev tsim kho tshuab, khoom siv ua liaj ua teb
QSC Series Common Rail QSC 8.3 Marine, kev tsim kho, generators
QSL Series Common Rail QSL 9 Cov khoom siv hauv tsev, generators
QSM Series Common Rail QWM 11 Marine, industrial siv
K Series (K19 / K38 / K50) Mechanical / Electronic K19, K38, K50 Cov tsheb loj mining, tsim hluav taws xob
202603-TD2-CUMMINS

Vim li cas thiaj xaiv peb:

1.Kev muag khoom zoo thiab tom qab -Kev Pabcuam muag - Lub hauv paus ntsiab lus ntawm cov neeg siv khoom ib txwm los ua ntej. Txhawm rau pab koj -peb cov neeg siv khoom zoo kom txuag tau tus nqi, peb tau cog lus los muab koj cov cav tov zoo nrog tus nqi sib tw tshaj plaws. Tom qab kev muag khoom, peb txaus siab muab kev txhawb nqa thiab zoo siab tau hnov ​​​​cov lus tawm tswv yim los ntawm koj. Nws yog koj lub tswv yim zoo uas ua rau peb tau txais kev txhim kho ntau dua.

2.Cov qauv xaj raug lees txais.
 

3.Lub Sijhawm Kub -Koj yuav tau txais txhua yam khoom raws sijhawm.

4. Tus nqi super - Peb qhov kev paub nplua nuj pab koj nce nyiaj tau los ntawm tus nqi kom zoo dua.

1

2

3

 

4

Hu rau nthuav dav:
ADD: Huangpu Machinery City, No.585-A, No.138, Sab Hnub Tuaj Road, Huangpu District, Guangzhou City,
Guangdong xeev
Xov tooj:+86 15099762302 Whatsapp::+86 15099762302
Email: edwardswilliam1988@gmail.com

Cim npe nrov: cummins Hoobkas n14 Hoobkas kev ua tau zoo diesel roj injector 3411767 3411765 3411760 3411761 rau cav n14 thawj tshiab injector, Tuam Tshoj cummins Hoobkas n14 Hoobkas siab kev ua tau zoo diesel roj injector 3411767 3411765 3411760 3411761 rau cav n14 thawj tshiab injector lwm tus neeg

Xa kev nug