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INJECTOR GP- 1888739 - Caterpillar


1888739 INJECTOR GP- Caterpillar parts
Rating:
26
Alternative (cross code) number:
CA1888739
188-8739
1888739
Caterpillar 1888739 INJECTOR GP-
Weight: 2 pounds 1 kg.

Buy INJECTOR GP- 1888739 Caterpillar genuine, new aftermarket tractor parts with delivery

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$2,899.33

23 Oct 2025

CN: ziwangcjx
6Pcs Fuel Injector Compatible with Caterpillar C-9 Engine E330C 330C Excavator 188-8739 1888739
IMIFAFTAbT Product name: Fuel Injector || Warranty:1year || Compatible with Caterpillar C-9 Engine E330C 330C Excavator || Part Number:188-8739 1888739 || Important Note:1.Please double check that this product fits your car before purchasing check your part number,photo. 2.Since the effect of light is different between the display and the display, the actual color may be different from the color of the image.
$2,925.68

23 Oct 2025

CN: TUF Parts
6PCS Fuel injector Fits Compatible with Caterpillar C9 C-9 Engine 973C Loader 330C 330CL Excavator D6R SERIES II Track-Type Tractor 188-8739
JITUIHOM Part Number: 188-8739 1888739 || Product Name: 188-8739 1888739 Fuel injector || Status: Brand new, never used. || Suitable for use with Caterpillar C9 C-9 engines in various heavy machinery, such as the 973C Loader, 330C and 330CL Excavators, 627G, 637G, and 637D Wheel Scrapers, as well as the D6R SERIES II Track-Type Tractor and 12H Motor Grader. || Please ensure the compatibility of the product model before making a purchase by checking with us. Contact us if you are unsure to avoid unnecessary returns.
$624.24

23 Oct 2025

CN: huan887SHOP
Rebuilt Common Rail Injector 188-8739 1888739 For C-9 Engine For 330C Excavator
OMOAMVTGD Extend the service life of the engine: Professional fuel injectors can extend the service life of your car engine, effectively solving problems such as difficulty starting the vehicle and engine weakness. || Improving fuel economy: The ability to quickly respond and immediately open/close ensures the accuracy and consistency of each injection, improves fuel efficiency, has good atomization effect, can reduce fuel consumption, and achieve fuel saving effect. || Provide high-precision fuel injection effect: solve problems such as carbon deposition, cylinder shortage, and instrument failure. Reduce black smoke and ensure stable engine operation, || Easy installation: The installation process is simple, matches the original car, and does not require dismantling the engine or complex installation procedures. Even beginners can easily get started, saving you valuable time. || Rebuilt Common Rail Injector 188-8739 1888739 For C-9 Engine For 330C Excavator
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Information:


Illustration 1 g01523019
Location of steering metering pump under the left hand platformCovers have been removed for clarity.The steering metering pump is located on the base of the steering column under a cover below the cab. The resilient mounting of the metering pump will prevent vibration damage and noise.
Illustration 2 g00282859
Steering metering pumpNEUTRAL position (1) Inner spool (2) Drain outlet to tank (3) Left turn port (4) Outer sleeve (5) Right turn port (6) Inlet (7) Passage (8) Stator (9) Rotor (10) Passage (11) Drive (12) Pin (13) Centering springs (A) Control section (B) Metering sectionThe steering metering pump is made up of the following two sections:
Control section (A)
Metering section (B) The two sections are connected by hydraulics and by mechanics.Pump oil from the steering control valve goes through inlet (6) into control section (A). When the steering wheel is turned, control section (A) sends oil to metering section (B). Metering section (B) produces a specific amount of oil flow. Metered oil from metering section (B) is then directed by control section (A) to either left turn port (3) or right turn port (5). This oil becomes pilot oil for the steering control valve. As the steering wheel is turned faster, there is an increase in the flow of pilot oil. The steering cylinders will move farther with increased speed.Oil Flow
Control section (A) of the steering metering pump is a closed center type. When the steering wheel is in the NO STEER position, there is no alignment between the holes in sleeve (4) and the passages in spool (1). However, a small amount of pump oil from inlet (6) is allowed to flow through the center position of the steering metering pump. This small amount of oil flow (thermal purge) keeps the steering metering pump full. This will give a response time that is quick to steering demands. The thermal purge also helps keep the pilot oil lines to the steering control valve and the steering metering pump warmed during cold weather operations.Right Turn
Illustration 3 g00287150
Steering metering pumpRight turn (1) Inner spool (4) Outer sleeve (5) Right turn port (6) Inlet (7) Passage (8) Stator (9) Rotor (10) Passage (11) Drive (12) Pin (13) Centering springs (A) Control section (B) Metering section
Illustration 4 g00282755
Spool and sleeve (1) Inner spool (4) Outer sleeve (14) Holes for pin (12) (15) Small holes for oil flow (16) Grooves for oil flow (17) Slots for centering springsWhen the steering wheel is turned clockwise, spool (1), pin (12) and drive (11) start to turn. Sleeve (4) will not turn because spool (1) will turn inside sleeve (4). Small holes (15) in sleeve (4) will be in line with grooves (16) in spool (1). The thermal purge is blocked when spool (1) and sleeve (4) rotate. Pump oil from inlet (6) goes through small holes (15) in sleeve (4) into grooves (16) in spool (1). The oil in grooves (16) goes out through other small holes (15) in sleeve (4) and into passage (10). Oil flows through passage (10)


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