I’d confirm the radiator is beyond repair before hunting for a replacement. A radiator shop may be able to recore the original unit, which can be less costly than finding a correct replacement.
1. Compare the tag and mounting details, including inlet and outlet locations, fan clearance, and overall dimensions. L35 variants may differ.
2. Have it pressure-tested and checked for cracked tanks, blocked tubes, and repairable leaks. Recore it if the tanks and brackets are sound.
3. If it cannot be rebuilt, search by the dimensions and mounting points through used compact-tractor dismantlers, rather than only searching for “L35 radiator.”
Do not remove the cap while it is hot. Pressurized coolant can cause serious burns.