O-Ring
HYDRO MOTOR; 4 BOLT 1" 6B SPLINE; 7/8-14 SAE O-RING PORTS
- Catalogue reference number
- 1250638
- Catalogue brand
- Not recorded
Catalogue fields identify reference material. They do not confirm stock, OEM authorization or interchange. Verify the nameplate, original number and edition.

Catalogue model references
These are retained catalogue associations, not confirmed fitment for your equipment. Choose the model you want to review.
Catalogue specification records
| Original field | Recorded value |
|---|---|
| Weight | 0.40 lb (≈ 0.18 kg, converted) |
Catalogue description records
This part is the O-ring sealing element associated with a 4-bolt hydro motor having a 1" 6B spline and 7/8-14 SAE O-ring ports. As an O-ring, it is an elastomeric seal that closes a joint or bore against leakage of fluid or pressure. It fits E0410, E0413, R10 and R2020 pumps and is supplied as an aftermarket replacement for part number 1250638. It weighs about 0.40 lb.
An O-ring is an elastomeric static or dynamic seal that closes a joint or bore against leakage of fluid or pressure.
Catalogue question records
Original catalogue questions are retained. Fitment and availability need technical review.
- Which pumps does this part fit?
- It fits E0410, E0413, R10 and R2020 pumps.
- What does the O-ring do?
- An O-ring is an elastomeric static or dynamic seal that closes a joint or bore against leakage of fluid or pressure. Here it works with the SAE O-ring ports on the hydro motor.
- What part number does it cross-reference?
- It is an aftermarket replacement that cross-references part number 1250638, listed for identification only.
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