Reddit reviews Dorman 594-137 Harmonic Balancer
We found 1 Reddit comments about Dorman 594-137 Harmonic Balancer. Here are the top ones, ranked by their Reddit score.
Direct replacement to ensure proper fitShips with protective sleeve over cone and trigger to prevent damage (where applicable)Ease of installation with Dorman’s Harmonic Balancer Puller (594-999)Direct replacement to ensure proper fitShips with protective sleeve over cone and trigger to prevent damage (where applicable)Ease of installation with Dorman’s Harmonic Balancer Puller (594-999)A quality part backed by a Dorman limited lifetime warranty
Rockauto shows the 4cyl being Dorman # 594137, no listing for the '87 6 cyl. The Dorman site shows that part# only being good for the '83-93 4cyl, so it looks like they're different parts. It looks like RockAuto has the one you need for $66 though.
https://www.rockauto.com/en/catalog/jeep,1987,wrangler,2.5l+150cid+l4,1184655,engine,harmonic+balancer,5512
Amazon has one left, prime shipping, $75. One review from a guy that says it didn't work on his '86 CJ7 2.5
https://www.amazon.com/Dorman-594-137-Harmonic-Balancer/dp/B000CGIQW6/ref=sr_1_1?keywords=dorman+594137&qid=1567807150&s=gateway&sr=8-1
O'Reillys also lists the right part as being a Dorman 594-137, $75
https://www.oreillyauto.com/shop/b/engine-parts---mounts-16774/harmonic-balancer-12131/62c82173a71f/1987/jeep/wrangler?q=harmonic+balancer
Crown shows the same part for the 2.5 and 4.2
https://www.crownautomotive.net/Crankshaft-Damper/J3242886.html
and Amazon has that one for $57+$14 shipping.
https://www.amazon.com/Crown-Automotive-J3242886-Crankshaft-Damper/dp/B009X1QS8K/ref=sr_1_1?keywords=J3242886&qid=1567807218&s=gateway&sr=8-1
Doesn't look like it should be impossible to find. I'd probably order it from O'Reillys so I could take my old one in and compare.