Interchange Numbers: Donaldson P777638; Fleetguard AF25492; Baldwin RS3884; Wix 46708; Mann C 21 630/1
Weight: 4.00 lbs (1.81 kg)
Dimensions: 16.12 in (409.5 mm) long, 8.18 in (207.7 mm) outside diameter, 4.17 in (105.9 mm) inside diameter
Seal: RadialSeal
Type: Primary (outer) engine air filter element
Companion Part: Secondary (inner) element 392121A1 / 87683000 / Donaldson P777639 – sold separately
Condition: Aftermarket replacement part
Common Use Case or Symptoms: Use when the restriction indicator trips or at the annual air service – the RadialSeal primary must be replaced, not cleaned, to keep its seal.
Why Choose Broken Tractor:
✅ Construction and Tractor Fitment on One Verified Number – WX, 988 and 1188 excavators with MXU and Puma tractors
✅ Donaldson P777638 Cross-Reference Confirmed – a traceable number behind every claim
✅ Fast Shipping from a U.S.-Based Team – ready to ship from our U.S. warehouses
$999.00/ea
Shipping calculated at checkout. If any item in your order is temporarily unavailable, we'll contact you to arrange a back-order or refund — whichever you prefer.
Can’t Find What You’re Looking For?
Our knowledgeable staff will be happy to help you with any of your tractor, backhoe, dozer, or engine parts needs.
Do you need your part quickly? You're in luck! We have warehouses all over the country to ensure a quick and easy delivery time. Most of our parts ship from our warehouses the same day you place your order. And many times, orders are delivered in Two to Three days.
Our in house parts are manufactured following strict quality standards in our warehouse in Ohio. Parts such as hydraulic cylinders, pins, bushings, sheet metal, track adjusters, booms and dipper sticks are all ready to ship same day that they are purchased! With less time to wait for your shipment, you will be able to get back to work as quickly as possible.
Did you accidentally purchase the incorrect part? We offer returns and exchanges here at Broken Tractor. To proceed with a return, please fill out our form, and we will provide you with return authorization and a step by step return process for your convenience. We are more than happy to help you exchange your part for the correct one! fill out our form to make a request here at Return Request Form and we would be pleased to help you.
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