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{"title":"138-8754 Ca-Terpillar Fuel Injection System Ca-Terpillar Fuel Injector","imgUrl":"https:\/\/img.chinax.com\/nimg\/7d\/53\/d285c45be96eb65d902b5a213f43-200x200-1\/138_8754_ca_terpillar_fuel_injection_system_ca_terpillar_fuel_injector.jpg","attrs":{"Supply Ability":"1000","Delivery Time":"3 to 7 days","Model Number":"138-8754","Cross Reference \/ Interchangeable Part:":"0R-8624, 0R8624"}}
{"title":"1705181 Pencil Direct Injection Fuel Injector for Ca-terpillar 3400 Series","imgUrl":"https:\/\/img.chinax.com\/nimg\/82\/7c\/55ce3d3908e228ad8a88ef131910-200x200-1\/1705181_pencil_direct_injection_fuel_injector_for_ca_terpillar_3400_series.jpg","attrs":{"Supply Ability":"1000","Delivery Time":"3 to 7 days","Model Number":"1705181","Main Body Material":"Quenched tempered high-carbon alloy steel"}}
{"title":"1705183 Pencil Direct Injection Fuel Injector for Ca-terpillar 3400 Series","imgUrl":"https:\/\/img.chinax.com\/nimg\/74\/32\/34958d1ed5010d42346465d91c3c-200x200-1\/1705183_pencil_direct_injection_fuel_injector_for_ca_terpillar_3400_series.jpg","attrs":{"Supply Ability":"1000","Delivery Time":"3 to 7 days","Model Number":"1705183","Main Body Material":"Quenched tempered high-carbon alloy steel"}}
{"title":"328-9644 C7.3 Ca-terpillar Direct Injection Fuel Injector","imgUrl":"https:\/\/img.chinax.com\/nimg\/c6\/4b\/439068327834d3aaf58b784089b4-200x200-1\/328_9644_c7_3_ca_terpillar_direct_injection_fuel_injector.jpg","attrs":{"Supply Ability":"1000","Delivery Time":"3 to 7 days","Model Number":"328-9644","Exact OEM Compatibility":"Precision manufactured for Ca-terpillar C7.3 engine for seamless installation."}}
{"title":"456-3543 C7.3 Ca-terpillar Direct Injection Fuel Injector","imgUrl":"https:\/\/img.chinax.com\/nimg\/62\/66\/cd3b597008e6906ea8ce3cf5773f-200x200-1\/456_3543_c7_3_ca_terpillar_direct_injection_fuel_injector.jpg","attrs":{"Supply Ability":"1000","Delivery Time":"3 to 7 days","Model Number":"456-3543","Exact OEM Compatibility":"Precision manufactured for Ca-terpillar C7.3 engine for seamless installation."}}
{"title":"Cat-erpillar 370-7280 Fuel Injector","imgUrl":"https:\/\/img.chinax.com\/nimg\/8e\/9a\/af716b08403b65dc0fb1d7f7fb89-200x200-1\/cat_erpillar_370_7280_fuel_injector.jpg","attrs":{"Supply Ability":"1000","Delivery Time":"3 to 7 days","Model Number":"370-7280","Perfect Compatibility:":"Exact fit for Ca-terpillar C4.4, C7.1 diesel engines and 320F series construction machinery excavators."}}
The Ca-terpillar 3312B mechanical unit injector is the core fuel delivery component of the classic Cat 3312B heavy-duty engine fuel system. Adopting integrated MUI (Mechanical Unit Injector) structure, it combines high-pressure plunger assembly, needle valve, multi-orifice nozzle and sealing kits into one compact unit, driven directly by the engine camshaft rocker arm to generate high injection pressure without external high-pressure fuel pipes.
This injector strictly follows Cat original factory calibration standards to accurately control injection timing, fuel delivery volume and spray pattern. It sprays fine diesel mist evenly into combustion chambers to realize full fuel-air mixing, significantly boosting combustion efficiency, reducing black smoke, lowering carbon buildup inside cylinders, and restoring the engine’s original rated horsepower and torque.
Common failures of worn injectors include hard cold start, uneven cylinder operation, severe engine knocking, rising fuel cost and accelerated cylinder liner wear. Our upgraded 3312B injectors with wear-resistant hard coating and brand-new high-temperature sealing components perfectly solve all these failure issues.
4W7071 Ca-terpillar Direct Injection Fuel Injector
This pencil-type mechanical injector 4W7071 is OEM replacement for Cat-erpillar 3406, 3406B, 3406C, 3412, 3412B diesel engines.
Cross Reference Interchange Numbers
Interchangeable with 4W7017, 4W7018, 4W7019, 8N7005, reman part codes 0R-1744, 0R-3421, direct plug-and-play replacement without modification.
Applicable Equipment
Fits heavy-duty mining trucks 769C, 771C, 773B, 775B; D8 series bulldozers, 980C wheel loaders, 637E scrapers, stationary generator sets, marine propulsion units powered by 3400 series engines.
Precise fuel atomization optimizes combustion, solves hard start, rough idle, excessive black smoke and power shortage. Made of wear-resistant alloy with strict OEM tolerance, high pressure sealing for long-hour heavy-load harsh operation, stable aftermarket overhaul spare part.
We are a professional manufacturer and exporter specializing in diesel fuel injection spare parts, covering Bo-sch, Cat-erpillar, Scania and other mainstream brands. With over 10 years of industry experience, we strictly implement full bench testing for every injector to guarantee OEM-level precision and stability. We stock a complete product range including unit injectors, nozzles and injection pumps, offering one-stop sourcing for global repair shops, fleet operators and distributors. All goods adopt shockproof anti-rust packaging and come with a 12-month quality warranty. We support flexible MOQ, fast global delivery and customized technical support, winning long-term trust from clients across Europe, Southeast Asia, the Middle East and Africa.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Total Annual:
>1000000
Employee Number:
50~120
Ecer Certification：
Verified Supplier
Guangzhou Zhuohang Automotive Parts Co., Ltd.
We are a professional diesel parts exporter based in Guangzhou, China.
We offer two product lines:
Brand New & Remanufactured
Core products: diesel injection pumps, fuel injectors and engine ECU controllers.
Our parts are compatible with Bo-sch,... Guangzhou Zhuohang Automotive Parts Co., Ltd.
We are a professional diesel parts exporter based in Guangzhou, China.
We offer two product lines:
Brand New & Remanufactured
Core products: diesel injection pumps, fuel injectors and engine ECU controllers.
Our parts are compatible with Bo-sch,...
