A leaking shaft seal does not mean a dead motor. Nine times out of ten the internals are fine and a genuine factory seal kit brings the motor back for a fraction of replacement cost.

Fits: One kit suits every Zhenjiang BMT disc valve motor from 160 to 800cc, both shafts.

Which seal version is on your motor?

Disc valve motors use a larger seal set than a Gerotor or Geroler motor, and the kit must match the seal version stamped in the motor code. Read the last letters of your motor part number: D or no letter = standard low-pressure seal, U = high-pressure seal, HD = reinforced high-pressure. Fitting a standard kit to a U or HD motor will leak. If you are not sure, send us a photo of the motor plate.

Technicians Advice

Find out why it leaked before you fit the new seal. The most common killer of shaft seals is case drain back pressure - a blocked, kinked or undersized drain line. Fit the new seal without fixing the drain and you will be doing the job again in a month. Second most common: radial load working a plain bearing until the shaft runs off-centre - if the shaft has visible wear or play, a seal kit will not save it. Clean the seal cavity thoroughly, oil the new seals before assembly, and never drive a seal in dry with a hammer - use a proper drift or socket that bears on the outer edge only.

Warranty and Service

Genuine factory kits, 12-month warranty. We are a working hydraulic service centre - if you would rather send the motor in for reseal, ask us.

The motors these kits fit

Shipping and Freight Information

We ship Australia-wide. Orders are dispatched from our supply network in Melbourne, Brisbane and Perth, so your parts leave from the warehouse closest to you on express freight. Because we sell solid steel components, freight costs reflect real weight and real distance. We do not hide freight costs in inflated product prices. What you see is what you pay.

Why Buy From Us

• 20+ years of hydraulics expertise
• Australian owned and operated, Gold Coast QLD - ABN 92 969 264 674
• Secure checkout: Visa, Mastercard, PayPal, Zip Pay, Direct Deposit
• Tax invoices supplied with every purchase
• Phone 07 5563 1982 or 1300 1 HOSES - Email sales@mhfgc.com.au

Out of Stock Policy

It is our intention to maintain active stock on every listed item at all times. On rare occasions a size may be temporarily unavailable. If this occurs you will be notified immediately and offered the choice of a full refund or a short wait for incoming stock, typically 3 to 14 days.