Tuthill 2M-34.003 Cover Gasket 0.003 in for L Series Pumps
The Tuthill 2M-34.003 is a genuine cover gasket for Tuthill size 2 L Series pump builds. A gasket on a gear pump is not just a joint seal. The gasket stack is what holds the rotor end clearance, so the thickness fitted changes how the pump performs. Getting it right is the difference between a pump that makes its rated flow and one that does not.
At 0.003 inch this is one of the thinner gaskets in the family, so it is the one reached for when a pump has lost capacity and needs the rotor end clearance closed up. Always fit a complete gasket rather than trimming or doubling one, and mark the cover to housing alignment before taking the pump apart. Gaskets are single use. Scrape the faces back to clean metal, fit the new gasket dry unless the manual says otherwise, and draw the cover screws down evenly in an alternating pattern so the cover pulls square.
Key Features
- Genuine Tuthill cover gasket
- Direct replacement for size 2 L Series builds
- Supplied at 0.003 inch, one of the published thicknesses in this family
- One per joint
- Single use item that is replaced every time the joint is opened
- Cheap insurance against a leak or a lost pump cover
Applications
- Lubrication circuits on compressors, gearboxes and engines
- Burner oil and fuel oil transfer and circulation
- Low pressure hydraulic supply circuits
- Heat transfer oil and quench oil service
- Scheduled overhaul of Tuthill rotary gear pumps
- Spares holding for equipment that cannot afford downtime
Specifications
- Brand: Tuthill
- Manufacturer Part Number: 2M-34.003
- Part Type: Cover Gasket
- Fits: Tuthill size 2 L Series pump builds
- Thickness: 0.003 inch
- Quantity Required: 1
- Condition: New
Frequently Asked Questions
Q: Can I cut my own gasket from sheet?
It is a false economy. Thickness tolerance is what sets the clearance, and hand cut sheet is rarely within the few thousandths of an inch that matters here.
Q: Do I need sealant as well?
No. A correctly cut gasket on clean faces seals on its own, and sealant adds an uncontrolled thickness to a joint where thickness is the specification.
Q: Which thickness should I order?
Work from the clearance you measure, not from what came out. A worn pump usually wants a thinner gasket and a hot duty usually wants a thicker one.
Q: Can I stack two gaskets to make up a thickness?
Only if the parts list says so. Stacking gaskets that were not designed for it leaves a joint that relaxes and weeps.
Not sure this is the right part? Send us a Picture of the Pump Plate on your pump and the CLR Marine team will confirm the correct gasket.
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