Gaskets Archives

Cummins

Conversion Gasket Set Cummins Engine ISB 6.7 – 4 Valves

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Cummins

Cover Plate Gasket Cummins Engine ISB 6.7

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Cummins

Rear Crankshaft Seal Kit Cummins Engines ISB 4.5 – Engine ISB 6.7

Rear Oil Seal Kit Cummins Engine ISB 4.5 – Engine ISB 6.7

Rear crankshaft oil seal kit with a double-lip seal, designed for Cummins applications with a wet flywheel/clutch housing. Location: rear end of the crankshaft, transmission/flywheel side. Documented equivalent seal made of PTFE. Its function is to prevent engine oil from leaking from the rear end of the crankshaft, maintaining a seal during crankshaft rotation.

The following are listed: ISB4.5, ISB6.7, QSB4.5, QSB6.7, 6C8.3, 6CT8.3, 6CTA8.3, ISC, QSC, ISL, and QSL for applications with a wet clutch housing. And on other engines: 4BT3.9, 6BT5.9, 6CT8.3, 6CTA8.3, 6CTAA8.3, and QSL9

Always verify the ESN (Engine Serial Number), CPL, and wet/dry flywheel housing configuration, because the same engine may use a different rear seal depending on the configuration.

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Cummins

Sealing O-Ring Cummins Engine ISB – Engine QSB

O-Ring Seal Cummins Engine ISB 6.7 – Engine QSB 6.7

It is located between the oil pump and its housing or fitting, providing a static seal between mating components and preventing leaks of oil or other fluids in the circuit where it is installed. It also appears in the section on the lubricating oil system/oil pump, but the exact location may vary depending on the CPL and configuration.

Observed on 6C 8.3 / 6CT / 6CTA, ISC 8.3, QSC 8.3, ISL 8.9/9, QSL 8.9/9, QSB 6.7, and ISB 6.7 engines.

We always recommend checking the ESN and CPL in the Cummins OEM catalog, because the same O-ring is used across different engine families, and the quantity and location may vary depending on the engine configuration.

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Cummins

Rear Crankshaft Seal Kit Cummins Engine ISB 6.7

Rear Main Seal Kit Cummins Engine ISB 6.7

The kit provides a seal at the rear of the crankshaft, preventing engine oil from leaking at the point where the crankshaft exits the engine block toward the flywheel/transmission housing. It is therefore installed at the rear of the engine block, on the flywheel side. The sealing component is typically made of a technical elastomer that is resistant to oil and high temperatures, combined with metal support/reinforcement elements.

Compatible engines: 4B, 4BT, 6B, 6BT, 6C, 6CT, 6CTA, ISB, QSB, ISC, QSC, ISL, QSL

However, we recommend checking the ESN/CPL before the sale: not all configurations within the same engine family necessarily use the same oil seal.

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Cummins

Rear Crankshaft Oil Seal Cummins Engine ISB 4.5 – Engine ISB 5.9 – Engine ISB 6.7

Rear Main Seal Cummins Engines ISB 4.5 / 5.9 / 6.7

Rear crankshaft oil seal located in the area where the engine block connects to the flywheel housing. Its function is to prevent engine oil from leaking around the rear end of the crankshaft and to limit the entry of contaminants. This family of oil seals is available with a PTFE sealing element.

Used on the following engines: 4B 3.9, 4BT 3.9, 4BTA 3.9, QSB 4.5, 6B 5.9, 6BT 5.9, 6BTA 5.9, ISB 5.9, QSB 5.9, ISB 6.7, QSB 6.7, B6.7, 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSC 8.3, ISL 8.9, QSL 8.9 / QSL9.

With final verification via ESN/CPL for the specific configuration.

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Gaskets

Exhaust Manifold Gasket Engine Cummins

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Cummins

Gasket – Oil Drain Cummins Engine ISB – Engine QSB

Gasket – Oil Drain Cummins Engine ISB 5.9/ISB 6.7 – Engine QSB 5.9/QSB 6.7

To be 100% certain, check the engine serial number (ESN), the return line and turbocharger may vary depending on the CPL, year, and turbo configuration.

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