For those of you that have a Kaw air-cooled engine, you might be able to "upgrade" your oil system as I did.
Most of us that have an air-cooled Kaw on our equipment (Scag, JD, ExMark, etc) probably have an "FH" series engine. Available in 19, 21, 23 and 25hp, only the "721" (25hp) model comes stock with an external oil cooler. However, it can be retrofitted to any of the other engines (they are all the same engine/block, just different carbs for different power production).
Here is a link to the Kawpower site page with the parts listing: buykawpower.com
You'll need the o-ring, the "joint" (which I would call a pipe-nipple), and the cooler body itself. Please note there are multiple listings for some of the parts, such as the pipe-joint. I asked the dealer what the difference was, and they could not tell me. But they did offer to take the parts back if the didn't fit, so my risk was low. I used the pipe-joint "59071-7009" and it fit both the engine block and my 3/4"-16 oil filter threads, so I must have used the correct one.
Now - brace yourself for a shock ...
It only costs about $25 for the entire three pieces! I was expecting a lot more, but I got all three needed pieces from my local Scag dealer for under $25.
Very easy to put on:
1) clean around the current filter area
2) remove old filter
3) use channel locks and remove the pipe stub (the filter mount) from the engine block
4) install the o-ring on the cooler body
5) slip the pipe "joint" through the body
6) align the cooler body to the engine and thread in the pipe "joint"
7) use a 1" deep well socket and tighten the pipe firmly (very snug, but not stupid tight, as it it an aluminum block after all)
8) install new filter and refill to spec level
9) start engine; observe for leaks and correct if any
10) grab self-congratulatory carbonated grain-based alcoholic beverage and celebrate
The ONLY caution is that you'll loose a bit of clearance on some applications. I used a Wix 51394 filter and had zero issues, but my "old" filter (a leftover AA filter) would have been too long. Any of the shorter fitlers such as the Wix 51394 works perfectly fine. (If you've been using a filter such as the popular Ford filter such as Wix 51516 it will not clear the new cooler body nor the chassis frame.) The Wix 51394 is the spec'd filter for that Kaw engine series application, so it's "right" and it fits.
Not a bad upgrade for $25, and the piece of mind of a bit less oil stress.
Most of us that have an air-cooled Kaw on our equipment (Scag, JD, ExMark, etc) probably have an "FH" series engine. Available in 19, 21, 23 and 25hp, only the "721" (25hp) model comes stock with an external oil cooler. However, it can be retrofitted to any of the other engines (they are all the same engine/block, just different carbs for different power production).
Here is a link to the Kawpower site page with the parts listing: buykawpower.com
You'll need the o-ring, the "joint" (which I would call a pipe-nipple), and the cooler body itself. Please note there are multiple listings for some of the parts, such as the pipe-joint. I asked the dealer what the difference was, and they could not tell me. But they did offer to take the parts back if the didn't fit, so my risk was low. I used the pipe-joint "59071-7009" and it fit both the engine block and my 3/4"-16 oil filter threads, so I must have used the correct one.
Now - brace yourself for a shock ...
It only costs about $25 for the entire three pieces! I was expecting a lot more, but I got all three needed pieces from my local Scag dealer for under $25.
Very easy to put on:
1) clean around the current filter area
2) remove old filter
3) use channel locks and remove the pipe stub (the filter mount) from the engine block
4) install the o-ring on the cooler body
5) slip the pipe "joint" through the body
6) align the cooler body to the engine and thread in the pipe "joint"
7) use a 1" deep well socket and tighten the pipe firmly (very snug, but not stupid tight, as it it an aluminum block after all)
8) install new filter and refill to spec level
9) start engine; observe for leaks and correct if any
10) grab self-congratulatory carbonated grain-based alcoholic beverage and celebrate
The ONLY caution is that you'll loose a bit of clearance on some applications. I used a Wix 51394 filter and had zero issues, but my "old" filter (a leftover AA filter) would have been too long. Any of the shorter fitlers such as the Wix 51394 works perfectly fine. (If you've been using a filter such as the popular Ford filter such as Wix 51516 it will not clear the new cooler body nor the chassis frame.) The Wix 51394 is the spec'd filter for that Kaw engine series application, so it's "right" and it fits.
Not a bad upgrade for $25, and the piece of mind of a bit less oil stress.