Crankshaft Oil Seal Kit for Arctic Cat Puma 340 1971-1972

Crankshaft Oil Seal Kit for Arctic Cat Puma 340

This crankshaft oil seal kit is a direct replacement set designed for the Arctic Cat Puma 340 covering model years 1971 and 1972, sealing the crankcase against oil and air leaks at the crank ends.

Overview

This crankshaft oil seal kit is built to refresh the crank seals on an Arctic Cat Puma 340 snowmobile engine. The crankshaft oil seal kit restores the airtight crankcase seal that these two-stroke motors depend on for steady fuel draw and reliable running. A practical choice for owners rebuilding the bottom end or chasing a lean-running or hard-starting condition on the Puma 340.

Built For Performance

• Engineered to hold crankcase pressure and stop air leaks at the crankshaft ends
• Constructed from oil-resistant seal material for two-stroke crankcase service
• Correct fitment for Puma 340 engines from 1971 through 1972
• Sold as a kit so both sides of the crankshaft can be serviced together
• Direct replacement style for worn or hardened original seals

Fits These Machines

• for Arctic Cat Puma 340, 1971
• for Arctic Cat Puma 340, 1972

On-The-Job Use

• Bottom-end rebuilds on vintage Arctic Cat Puma 340 sleds
• Sealing a crankcase that is pulling air past old, hardened seals
• Routine freshening during a top-end tear-down
• Restoring a stored or non-running vintage snowmobile

Specs At A Glance

Good To Know

Q: Do I need to split the cases to install these seals? A: On most two-stroke engines the crank seals sit behind the crank ends and can often be replaced without splitting the cases, though some setups require case removal, so check your service manual for the Puma 340.

Q: Can worn seals cause a hard-starting engine? A: Yes, leaking crank seals let air into the crankcase and lean out the mixture, which commonly shows up as hard starting, erratic idle or a runaway idle.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.