What applications does the P551315 fit?

• CATERPILLAR  3126 C7 3116 120 H120 HK311 CU311 D LRR31263126312 C312 D312 D312 D314 C/LCR314 D/LCR314 D/LCR314 D/LCR314 D/LCR315 D315 D/LCR318 C319 D/LCR319 D/LCR319 D/LCR320320 B320 B320 B/BL320 BLN320 BN/BS320 C320 CL/CLN320 CS320 D320 D/HK/L320 D/HK/L320 L320 S321 C-LCR321 D LCR321 D LCR322322 B/BL322 B-LN322 C323 DL323 DL/DLN323 DL/DLN323 DL/DLN323 DLN/DS323 DLN/DS323 DLN/DS323 DL SA325325 B325 B325 BL325 B-L325 LC325 LN3303400550570574580924 F928 F928 G935 C938 F938 G950 F SERIE II950 G953 B953 C953 C960 F962 G963 B963 C963 C963 D

Professional Caterpillar 3116 Fuel Filter P551315 P171421 5301448 600-311-3750

Q: Where are the fuel filters located?

Gasoline vehicles: mostly built-in, located at the bottom of the fuel tank or under the rear seats; Some old or specific models are external, located at the connection of the chassis oil pipe.
Diesel vehicles: often adopt external type, mostly located directly in front of the fuel tank or in the middle of the chassis, for easy maintenance and oil-water separation.

Q: How do you change the 3116 fuel filter?

Key steps for replacing the Carter 3116 fuel filter

• Preparation work

Ensure that the engine is turned off and cooled down to avoid high temperatures or fuel pressure risks.
Prepare a new fuel filter for adaptation (Caterpillar 3116 typically uses specialized filters, such as Cat original or compliant alternatives).
Tools: wrench, oil basin/oil container, clean cloth, gloves, goggles.
If the filter is equipped with a water separator, drainage tools or drain valves need to be prepared.

• Pressure relief and drainage (important)
The Carter 3116 is a high-pressure common rail or mechanical fuel system, and the fuel system pressure must be released first.
Open the drain plug or drain valve at the bottom of the filter to remove any accumulated moisture and impurities.
Some models require loosening the fuel return pipe or using a manual pump to assist in pressure relief.

• Dismantle the old filter

Use a suitable tool (usually a filter specific wrench) to unscrew the old filter.
During the disassembly process, use an oil basin to catch residual diesel to prevent contamination.
Pay attention to checking whether the sealing gasket is intact, and replace it together if it is damaged.

• Install a new filter
The bottom sealing surface of the new filter should be coated with a small amount of diesel (not engine oil) to facilitate sealing and lubrication.
Insert the new filter vertically into the base, tighten it by hand until the gasket contacts the base, and then turn it 1/2 to 3/4 of a turn.
Do not overtighten to avoid damaging the threads or seals.

• Exhaust and start-up inspection

The Carter 3116 diesel engine requires manual exhaust: use a manual oil pump (if available) or loosen the exhaust plug of the fuel injection pump, pump the oil until no bubbles flow out, and then tighten it.
Reconnect all pipelines, start the engine, idle for 3-5 minutes, and check for oil leaks.
Observe whether the engine runs smoothly and confirm that there are no abnormal noises or insufficient power.

Precautions

• Safety first: Diesel fuel is flammable. Keep away from open flames and maintain ventilation during operation.
• Model matching: It is necessary to use Cat designated models (such as Cat 1R-0750 or 1R-1807, etc.) to avoid compatibility issues.
• Replacement cycle: It is generally recommended to replace it every 250-500 working hours or 10000-20000 kilometers (depending on the operating conditions), according to the "Caterpillar 3116 Operation and Maintenance Manual".

Q: What is the micron rating of the P551315?

The micron rating of P551315 is 20 microns.