3860791 ROLLER GP Caterpillar parts
302.4D, 302.7D
Rating:
Alternative (cross code) number:
CA3860791
386-0791
3860791
CA3860791
386-0791
3860791
Weight: 17 pounds 8 kg.
MINI HYD EXCAVATOR,
You can buy:
US$182.10
28 May 2025
FridayParts
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Bottom Roller fits Caterpillar 302.4D 302.7D CR 386-0791
National 1 Track & Parts We use precision manufacturing to deliver the highest quality parts
National 1 Track & Parts We use precision manufacturing to deliver the highest quality parts
rsityhalf Bottom Roller Replacement Fit for Caterpillar for CAT 302.4D Excavator Durable Equipment Undercarriage Track Bottom Rollers 386-0791 Yellow
rsityhalf ????Part Name: Bottom Roller Replacement || ????Part Number:386-0791 || ????Application:for Caterpillar for CAT 302.4D Excavator Durable Equipment Undercarriage Track Bottom Rollers || ????Tip: If you need any other parts, please contact us - we are a professional sales team and have many products to offer to you. Many buyers are very satisfied with our service. You can get first-class products and high-quality services from us, believe me, you will have a pleasant shopping experience here. || ????Attention: If you are unsure if the product is suitable for your machine model. In order not to delay your use of the parts, please provide your engine nameplate or serial number and part number, and we will help you confirm if it is suitable. To avoid unnecessary returns, please carefully check the product image and part number to ensure that it is the product you want. Thank you for your support and understanding!
rsityhalf ????Part Name: Bottom Roller Replacement || ????Part Number:386-0791 || ????Application:for Caterpillar for CAT 302.4D Excavator Durable Equipment Undercarriage Track Bottom Rollers || ????Tip: If you need any other parts, please contact us - we are a professional sales team and have many products to offer to you. Many buyers are very satisfied with our service. You can get first-class products and high-quality services from us, believe me, you will have a pleasant shopping experience here. || ????Attention: If you are unsure if the product is suitable for your machine model. In order not to delay your use of the parts, please provide your engine nameplate or serial number and part number, and we will help you confirm if it is suitable. To avoid unnecessary returns, please carefully check the product image and part number to ensure that it is the product you want. Thank you for your support and understanding!
KiayUiey 2pcs Bottom Roller Replacement Fit for Caterpillar CAT 302.4D Excavator Durable Equipment Undercarriage Track Bottom Rollers #386-0791 Black
KiayUiey DIRECT FIT COMPATIBILITY: Fits for Caterpillar Construction & Industrial(s) 302.4D (s/n LJN, LJ6).For Caterpillar Mini Excavator(s) 302.4D (s/n LJN, LJ6), 302.7D CR (s/n LJL, LJ7). Replaces Caterpillar OEM Number: 386-0791. || Roller Specification: Weight: 15.43 LBS; Package Dimensions:5.51"X5.51"X8.26"; Color: Black; Material: 50MnB; Steel; Surface Hardness: HRC 52-60,Deepth: 5mm-10mm; Finish: Smooth; Technique: Forging and Casting.Seal: Nitrile rubber. Operating temperature range -20℃ to 110℃.Locking pin, 65Mn or 45 carbon steel, hardened HRC25-28. Bolt, grade 12.9, HRC45-52. 6. || High Quality: This bottom roller is a durable undercarriage replacement part for your excavator. Our rollers utilize special high strength-hardened steel and quality seal groups that provide excellent lubricating oil retention. Sealed bearings stop dirt, mud, and grime from penetrating inner components. || Durable & Excellent Performance: Made of durable material which is totally corrosion and dust resistant, each item has been factory tested and meets or exceeds OEM specifications. It was designed and manufactured to exact OEM specifications. It will provide long-lasting and dependable performance even if you operate in the most extreme conditions. || What You Will Get: Package come with 2 X Bottom Roller. Using sturdy package to make sure radiator no bending and no damage.Professional installation would be highly recommended.
KiayUiey DIRECT FIT COMPATIBILITY: Fits for Caterpillar Construction & Industrial(s) 302.4D (s/n LJN, LJ6).For Caterpillar Mini Excavator(s) 302.4D (s/n LJN, LJ6), 302.7D CR (s/n LJL, LJ7). Replaces Caterpillar OEM Number: 386-0791. || Roller Specification: Weight: 15.43 LBS; Package Dimensions:5.51"X5.51"X8.26"; Color: Black; Material: 50MnB; Steel; Surface Hardness: HRC 52-60,Deepth: 5mm-10mm; Finish: Smooth; Technique: Forging and Casting.Seal: Nitrile rubber. Operating temperature range -20℃ to 110℃.Locking pin, 65Mn or 45 carbon steel, hardened HRC25-28. Bolt, grade 12.9, HRC45-52. 6. || High Quality: This bottom roller is a durable undercarriage replacement part for your excavator. Our rollers utilize special high strength-hardened steel and quality seal groups that provide excellent lubricating oil retention. Sealed bearings stop dirt, mud, and grime from penetrating inner components. || Durable & Excellent Performance: Made of durable material which is totally corrosion and dust resistant, each item has been factory tested and meets or exceeds OEM specifications. It was designed and manufactured to exact OEM specifications. It will provide long-lasting and dependable performance even if you operate in the most extreme conditions. || What You Will Get: Package come with 2 X Bottom Roller. Using sturdy package to make sure radiator no bending and no damage.Professional installation would be highly recommended.
Information:
The following parameters are programmed at the factory to "0":
"Crank Duration"
"Maximum Number Of Crank Cycles"The "0" settings prevent the Electronic Control Module (ECM) from engaging the starting motors. The settings must be reprogrammed before the engine will crank.Ensure that the "Air Shutoff" and the "Ether Control" parameters are "Enabled/ON" (if equipped). If the engine does not have these options, ensure that these two parameters are "DISABLED/OFF".The engine will have either jacket water aftercooling or separate circuit aftercooling. The correct configuration of the aftercooling system must be programmed.No password is required for programming a new ECM during the first 100 hours of service life. This 100 hour "free configuration" feature enables the customer to tailor the programmable setpoints to the requirements of the installation. Exceptions are "Fuel Limit" and "Personality Module Mismatch".Air Shutoff (If Equipped)
The air shutoff uses a moving plate to block inlet air to the aftercooler. The engine stops because of the restricted air supply to the combustion chamber. The air shutoff only actuates for the following conditions:
The Emergency Stop button is pressed.
An overspeed shutdown occurs.Both of the air shutoffs must be reset before the engine can be restarted.
Illustration 1 g01304979
Reset for the air shutoffTo reset the air shutoff, rotate the hex to the "OPEN" position.Ensure that both of the air shutoffs are reset.Power to the ECM must be cycled in order to restart the engine. Turn the battery disconnect switch to the OFF position for three seconds. Turn the battery disconnect switch back to the ON position. The engine may now be restarted.Cold Mode Cylinder Cutout
Note: This feature can be enabled or disabled with an electronic service tool.The Cold Mode Cylinder Cutout feature provides the following benefits:
Reduction of white smoke during cold starting
Reduction of the duration of advanced timing (cold mode)
Reduction of ether injectionThe ECM automatically turns off one electronic unit injector at a time during the following occurrences:
Cold start-up
Extended time at low idleThe ECM monitors the change of the fuel rack in order to determine if a cylinder is firing. If the cylinder is firing the ECM activates the electronic unit injector. If the cylinder is not firing the electronic unit injector remains deactivated. This reduces white smoke.The following conditions must be met in order to activate the Cold Mode Cylinder Cutout:
The Cold Mode Cylinder Cutout parameter is programmed to "ENABLE".
The fuel rack is less than 13 mm (0.5 inch).
The temperature of the jacket water is less than 63 °C (145 °F).The Cold Mode Cylinder Cutout strategy is activated under either of the following conditions:
Ten seconds after the engine reaches the low idle rpm
Three seconds after ether injection is completedThe following conditions will deactivate the Cold Mode Cylinder Cutout:
The Cold Mode Cylinder Cutout parameter is programmed to "DISABLED".
The temperature of the jacket water is more than 70 °C (158 °F).
An ET service tool is used for the cylinder cutout test.
The ether injection system is used.
The coolant temperature sensor has failed.
The engine is operating at a certain rpm when the Cold Mode Cylinder Cutout is activated. If
"Crank Duration"
"Maximum Number Of Crank Cycles"The "0" settings prevent the Electronic Control Module (ECM) from engaging the starting motors. The settings must be reprogrammed before the engine will crank.Ensure that the "Air Shutoff" and the "Ether Control" parameters are "Enabled/ON" (if equipped). If the engine does not have these options, ensure that these two parameters are "DISABLED/OFF".The engine will have either jacket water aftercooling or separate circuit aftercooling. The correct configuration of the aftercooling system must be programmed.No password is required for programming a new ECM during the first 100 hours of service life. This 100 hour "free configuration" feature enables the customer to tailor the programmable setpoints to the requirements of the installation. Exceptions are "Fuel Limit" and "Personality Module Mismatch".Air Shutoff (If Equipped)
The air shutoff uses a moving plate to block inlet air to the aftercooler. The engine stops because of the restricted air supply to the combustion chamber. The air shutoff only actuates for the following conditions:
The Emergency Stop button is pressed.
An overspeed shutdown occurs.Both of the air shutoffs must be reset before the engine can be restarted.
Illustration 1 g01304979
Reset for the air shutoffTo reset the air shutoff, rotate the hex to the "OPEN" position.Ensure that both of the air shutoffs are reset.Power to the ECM must be cycled in order to restart the engine. Turn the battery disconnect switch to the OFF position for three seconds. Turn the battery disconnect switch back to the ON position. The engine may now be restarted.Cold Mode Cylinder Cutout
Note: This feature can be enabled or disabled with an electronic service tool.The Cold Mode Cylinder Cutout feature provides the following benefits:
Reduction of white smoke during cold starting
Reduction of the duration of advanced timing (cold mode)
Reduction of ether injectionThe ECM automatically turns off one electronic unit injector at a time during the following occurrences:
Cold start-up
Extended time at low idleThe ECM monitors the change of the fuel rack in order to determine if a cylinder is firing. If the cylinder is firing the ECM activates the electronic unit injector. If the cylinder is not firing the electronic unit injector remains deactivated. This reduces white smoke.The following conditions must be met in order to activate the Cold Mode Cylinder Cutout:
The Cold Mode Cylinder Cutout parameter is programmed to "ENABLE".
The fuel rack is less than 13 mm (0.5 inch).
The temperature of the jacket water is less than 63 °C (145 °F).The Cold Mode Cylinder Cutout strategy is activated under either of the following conditions:
Ten seconds after the engine reaches the low idle rpm
Three seconds after ether injection is completedThe following conditions will deactivate the Cold Mode Cylinder Cutout:
The Cold Mode Cylinder Cutout parameter is programmed to "DISABLED".
The temperature of the jacket water is more than 70 °C (158 °F).
An ET service tool is used for the cylinder cutout test.
The ether injection system is used.
The coolant temperature sensor has failed.
The engine is operating at a certain rpm when the Cold Mode Cylinder Cutout is activated. If
Caterpillar parts catalog:
Parts roller Caterpillar catalog:
3792885
ROLLER AS
301.4C, 301.7D, 301.7D CR, 302.2D, 302.4D
301.4C, 301.7D, 301.7D CR, 302.2D, 302.4D
3792799
ROLLER
301.4C, 301.7D, 301.7D CR, 302.2D, 302.4D, 302.7D
301.4C, 301.7D, 301.7D CR, 302.2D, 302.4D, 302.7D
3812866
ROLLER
301.4C, 301.7D, 302.2D, 302.4D, 302.7D
301.4C, 301.7D, 302.2D, 302.4D, 302.7D
3860782
ROLLER
302.4D, 302.7D
302.4D, 302.7D
3812866
ROLLER
301.4C, 301.7D, 302.2D, 302.4D, 302.7D
301.4C, 301.7D, 302.2D, 302.4D, 302.7D
3792799
ROLLER
301.4C, 301.7D, 301.7D CR, 302.2D, 302.4D, 302.7D
301.4C, 301.7D, 301.7D CR, 302.2D, 302.4D, 302.7D
3792885
ROLLER AS
301.4C, 301.7D, 301.7D CR, 302.2D, 302.4D
301.4C, 301.7D, 301.7D CR, 302.2D, 302.4D
3813040
ROLLER
301.4C, 301.7D, 301.7D CR, 302.2D
301.4C, 301.7D, 301.7D CR, 302.2D
3725958
ROLLER GP
300.9D
300.9D
3346482
ROLLER
312D, 312D L, 312E, 312E L, 315D L, 316E L, 318E L, 319D L, 319D LN, 320D, 320D L, 320D LRR, 320D RR, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 323D L, 323D LN, 323D SA, 323E L, 324D, 324D L, 324E, 32...
312D, 312D L, 312E, 312E L, 315D L, 316E L, 318E L, 319D L, 319D LN, 320D, 320D L, 320D LRR, 320D RR, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 323D L, 323D LN, 323D SA, 323E L, 324D, 324D L, 324E, 32...
3963755
ROLLER & BEARING AS
311F LRR, 314E CR
311F LRR, 314E CR
4397599
ROLLER
303E CR
303E CR
4191292
ROLLER
308E, 308E2 CR
308E, 308E2 CR
3836945
ROLLER & BEARING AS
308E, 308E2 CR
308E, 308E2 CR
3836956
ROLLER & BEARING AS
308E, 308E CR, 308E SR, 308E2 CR
308E, 308E CR, 308E SR, 308E2 CR
3860782
ROLLER
302.4D, 302.7D
302.4D, 302.7D