Seal – U-Cup | Caterpillar Engine | M-6J1878
$3.87
In Stock
Seal – U-Cup | Caterpillar Engine | M-6J1878 Seal – U-Cup is an OEM-quality component designed for the Caterpillar diesel engine. Manufactured to meet or exceed original specifications, this part ensures reliable performance and long service life. OE reference: M-6J1878. Each product from HeavyDutyKits.com is backed by our commitment to quality and compatibility, helping mechanics […]
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Interstate McbeeSKU:
M-6J1878Brand:
Interstate McbeeSeal – U-Cup | Caterpillar Engine | M-6J1878
Seal – U-Cup is an OEM-quality component designed for the Caterpillar diesel engine. Manufactured to meet or exceed original specifications, this part ensures reliable performance and long service life. OE reference: M-6J1878.
Each product from HeavyDutyKits.com is backed by our commitment to quality and compatibility, helping mechanics and fleet operators maintain top efficiency.
Features:
- Direct-fit replacement for Caterpillar OE M-6J1878
- Engineered for durability under high-load diesel conditions
- Ideal for rebuilds, maintenance, or performance upgrades
Order today from HeavyDutyKits.com ? your trusted source for heavy-duty diesel engine parts.


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