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Description
Air Filter 131-8821 for Caterpillar CAT Excavators 320B-323DReplacement part number: 131 8821,1318821,CA1318821 Application: Fit for following models: Caterpillar CAT Paving Compactor: CP 533D,CP 563D,CP 563E,CP 573E,CP 663E,CS 531D,CS 533D,CS 563D,CS 563E,CS 573D, CS 573E,CS 583D,CS 583E,CS 663E,CS 683E Caterpillar CAT Wheeled Excavator: M325B Caterpillar CAT Excavator: 321D LCR,325B L,325B LN,320B,320B FM LL,320B L,320B LL,320B LU,320B N,320B S,320B U,320C,320C FM, 320C L,320D,320D FM,320D FM RR,320D GC,320D
Replacement part number:
131-8821,1318821,CA1318821
Application:
Fit for following models:
Caterpillar CAT Paving Compactor:
CP-533D,CP-563D,CP-563E,CP-573E,CP-663E,CS-531D,CS-533D,CS-563D,CS-563E,CS-573D,
CS-573E,CS-583D,CS-583E,CS-663E,CS-683E
Caterpillar CAT Wheeled Excavator:M325B
Caterpillar CAT Excavator:
321D LCR,325B L,325B LN,320B,320B FM LL,320B L,320B LL,320B LU,320B N,320B S,320B U,320C,320C FM,
320C L,320D,320D FM,320D FM RR,320D GC,320D L,320D LN,320D LRR,320D RR,320D2,320D2 FM,320D2 GC,
320D2 L,320D3,320D3 GC,320E,320E L,320E LN,320E LRR,320E RR,320F L,321B,321C,322B,322B L,322B LN,
322C,322C FM,323D,323D L,323D LN,323D S,323D SA,323D2 L,323D3,323E L,323E LN,323E SA,323F,323F L,
323F LN,323F OEM,323F SA,325B
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Fuel and repair costs are rising…
Why not make your (overpriced) fuel work for you? If you appreciate your internal combustion engine, and want to help avoid costly repairs or maintenance to your fuel injector system, you can!
To be honest the quality of fuel is often questionable (I’m looking right at you, ethanol). Modern fuel injection systems are squeezed for every iota of fuel economy and performance. It makes sense to be a little proactive with the preventative maintenance, it’s just good sense.
Adding Jectron to your fuel is a smart, and economical measure that you can take, to keep your injection system running as designed.
It won’t damage your emissions components, it won’t harm your fuel systems more delicate parts (O-rings, plastic tubing, filters, etc.).
There are plenty of great options out there, such as Chevron’s Techron, and a handful of other reputable products. I used to be a very strong advocate of Techron (it’s still my backup choice). However, after witnessing Jectron solve a battery of problems on a variety of vehicles, I’m a convert.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2023
★★★★★ 5
Quick and Competent!
Fast service. Exactly as ordered.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 16, 2025
★★★★★ 5
Perfect fit
Color: 20pcs
Perfect replacement retainer clips for my car.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
★★★★★ 5
use these every day
Color: 20pcs
fits better than OEM and better price
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Reviewed in the United States on March 13, 2026
★★★★★ 5
Great in all respects
Color: 20pcs
Worked well for the job, good quality, and seem to be durable. Very easy to use and a good value for the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2025
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