196322-04781
BEARING
Yanmar 196322-04781 on the SD40/SD50 upper gear is a pair of tapers with a plain spacer ring between them. Both cups are stamped Koyo 30307DJR. The ring has no number; keep that ring. 30307DJR is the steep-angle taper. The ISO number is 31307: 35 x 80 x 22.75 mm, cup 15 mm. A 30307 is the same envelope with an 18 mm cup and a shallower angle. Order two 31307 (or two Koyo 30307DJR), reuse the original spacer, and reset the pinion shims from the SD40/SD50 workshop measure-and-calculate steps.
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Fitted to
Engines, drives and generators whose parts catalogue lists this part. Open any for its exploded parts list.
Saildrives & gearboxesAftermarket equivalents cross-ref
Third-party equivalents (Jabsco, Sierra, WIX, Mann…) — not OEM; verify before ordering. Usually cheaper than the marine dealer.
| Equivalent P/N | Brand | Description | Source | Confidence |
|---|---|---|---|---|
| 30307DJR | Koyo | SD40/SD50/SZ upper-gear pinion kit: two Koyo 30307DJR (both cups stamped) plus unmarked spacer ring; 30307DJR = ISO 31307 steep 35x80x22.75 C=15; not 30307 (C=18 shallow); reuse spacer; re-shim · depth:bearings | koyo.jtekt.co.jp | confirmed |
Standard component cross-ref
An industry-standard component — buy from any bearing / seal / o-ring house; just specify the designation.
| Equivalent P/N | Brand | Description | Source | Confidence |
|---|---|---|---|---|
| 31307x2 | Bearing | Any-house: two ISO 31307 (Koyo 30307DJR) plus original unmarked spacer = Yanmar 196322-04781; 30307DJR is 31307 not 30307 · depth:bearings | koyo.jtekt.co.jp | confirmed |
Used in 1 place
Every catalog figure this part is placed in, the model(s) it applies to, and its reference/level/quantity.
| Model(s) | Catalog | Figure | Page | Ref | Lev | Qty |
|---|---|---|---|---|---|---|
| SD40, SD40-4T, SD50, SD50-4T | SD50 Parts Catalog | Fig 2. UPPER GEAR HOUSING | 3 | 53 | 2 | 1 |