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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
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Description
Harness 278-5657 for Caterpillar CAT Excavator 365C 834H Dozer 621G 824HReplacement part number: CA2785657, 278 5657, 2785657 Fit for Caterpillar CAT Engine: 3412E, C15, C18 Application: Fit for following models: Caterpillar CAT Cold Planer: PM 200, PM 201 Caterpillar CAT Compactor: 826H, 836H, 825H Caterpillar CAT Generator: SR4 Caterpillar CAT Excavator: 365C, 365C L, 385C, 385C FS, 385C L, 385C L MH Caterpillar CAT Truck: 770, 772 Caterpillar CAT Pipelayer: 583T, 587T Caterpillar CAT Road Reclaimer: RM 500 Caterpillar
Replacement part number:
CA2785657, 278-5657, 2785657Fit for Caterpillar CAT Engine: 3412E, C15, C18
Application:
Fit for following models:
Caterpillar CAT Cold Planer: PM-200, PM-201
Caterpillar CAT Compactor: 826H, 836H, 825H
Caterpillar CAT Generator: SR4
Caterpillar CAT Excavator: 365C, 365C L, 385C, 385C FS, 385C L, 385C L MH
Caterpillar CAT Truck: 770, 772
Caterpillar CAT Pipelayer: 583T, 587T
Caterpillar CAT Road Reclaimer: RM-500
Caterpillar CAT Tractor: D8T, D9T
Caterpillar CAT Loader: 980H, 988H
Caterpillar CAT Scraper: 621G, 623G, 627G, 631D, 631G, 633D, 637D, 637E, 637G, 651B, 657E, 657G
Caterpillar CAT Dozer: 824H, 834H
Caterpillar CAT Petroleum Package: TH35-C15I, TH35-E81
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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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]
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4.4 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Pricing
Size: 22", Style: Pack of 2
Fit my F150 perfectly and what an easy installation, no issues @ a great price vs the Auto stores
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
★★★★★ 5
2010 Honda accord exl
Fit my 2010 Honda accord exl
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Reviewed in the United States on January 13, 2026
★★★★★ 5
Great quality
These o-rings worked perfectly on a 2010
Honda Odyssey. Stopped all the leaking from the pump.
Highly recommended
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
★★★★★ 5
Works for 05 Honda Accord power steering
Fits 05 Honda Accord power steering.
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Reviewed in the United States on September 21, 2025
★★★★★ 1
GARBAGE. Don’t waste your money
Absolute trash. The low pressure o-ring (orange) broke and split and broke in half after less than two hours of installation. Don’t waste your time and money on these cheap Chinese o-rings. The OEM Honda o-rings are literally cheaper and light years ahead of these in quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026