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Actuation: Surge Actuators

UFP surge actuators are available in capacities from 7,500 lbs. to 20,000 lbs. and come in disc brake and drum brake varieties. UFP’s unique inner-member and outer-member combination allow for a variety of configurations, allowing manufacturers flexibility when designing trailers for multiple applications.

Design qualities include a sleek square nose coupler a traditional lever-lock coupler. Heavy duty models offer a pintle eye coupler in addition to 2 5/16” couplers.

XR-84: 8,400 lb., 2" / 50mm BALL

UFP's newest design features a self-latching robust cast front end achieving a capacity of 8,400 lb. with a 2" ball. The XR-84 actuator is a best-in-class and also the inner housing is interchangeable with any UPF actuator 8,400 lbs. and below.

XR-84: 8,400 lb., 2 5/16" BALL

The A-84 actuator's sleek square nose design pioneered a new cosmetic look in the actuator marketplace. The unique over-center latch mechanism will only engage when the actuator is fully seated on the ball.

XR-84: 8,400 lb. Adjustable Channel

The A-84 actuator offers an adjustable channel front allowing a variety of bolt on attachments mounting heights.


Available Kits

K99-184-00: Actuator XR-84 Drum

K99-184-00: Actuator XR-84 Drum
Actuator Kit: Inner member, Drum

Dx Part No Quantity Description
099-184-00 1 Inner Member, Drum Brake, XR-84
097-022-00 1 Cap, Black Plastic
071-669-00 1 Consumer Lockout

K99-184-04: Actuator XR-84S Drum

K99-184-04: Actuator XR-84S Drum
Actuator Kit: Drum, Zinc, Bolt On, 14.5" Long, holes 3/4" down

Dx Part No Quantity Description
099-184-04 1 Surge Actuator, Drum Brake, XR-84S, Bolt-on
097-022-00 1 Cap, Black Plastic
071-669-00 1 Consumer Lockout
007-301-00 3 Bolt
005-181-00 6 Washer, Flat
006-219-00 3 Nut, Lock

K99-084-00: Actuator A-84 Drum

K99-084-00: Actuator A-84 Drum
Actuator Kit: Inner member, Drum

Dx Part No Quantity Description
099-084-00 1 Inner Member, Drum Brake, A-84
097-022-00 1 Cap, Black Plastic
071-669-00 1 Consumer Lockout

K99-084-04: Actuator A-84S Drum

K99-084-04: Actuator A-84S Drum
Actuator Kit: Drum, Zinc, Bolt On, Top Mount, 14.5" Long

Dx Part No Quantity Description
099-084-04 1 Surge Actuator, Drum Brake, A-84S, Bolt-on
097-022-00 1 Cap, Black Plastic
071-669-00 1 Consumer Lockout
007-301-00 3 Bolt
005-181-00 6 Washer, Flat
006-219-00 3 Nut, Lock

K99-084-08: Actuator A-84A Drum

K99-084-08: Actuator A-84A Drum
Actuator Kit: Drum, Zinc, Bolt On, 14.5" Long, holes 1" down

Dx Part No Quantity Description
099-084-08 1 Surge Actuator, Drum Brake, A-84A, Bolt-on
097-022-00 1 Cap, Black Plastic
071-669-00 1 Consumer Lockout
007-301-00 3 Bolt
005-181-00 6 Washer, Flat
006-219-00 3 Nut, Lock

K99-184-20: Actuator XR-84 Disc

K99-184-20: Actuator XR-84 Disc
Actuator Kit: Inner member, Disc w/ Solenoid, Single/Tandem

Dx Part No Quantity Description
099-184-20 1 Inner Member, Disc Brake, XR-84
097-022-00 1 Cap, Black Plastic
071-669-00 1 Consumer Lockout

K99-184-24: Actuator XR-84S Disc

K99-184-24: Actuator XR-84S Disc
Actuator Kit: Disc, Zinc, Bolt On, Top Mount, 14.5" Long, holes 3/4" down, Single/Tandem

Dx Part No Quantity Description
099-184-24 1 Surge Actuator, Disc Brake, XR-84S, Bolt-on
097-022-00 1 Cap, Black Plastic
071-669-00 1 Consumer Lockout
007-301-00 3 Bolt
005-181-00 6 Washer, Flat
006-219-00 3 Nut, Lock

K99-084-20: Actuator A-84 Disc

K99-084-20: Actuator A-84 Disc
Actuator Kit: Inner member, Disc w/ Solenoid, Single/Tandem

Dx Part No Quantity Description
099-084-20 1 Inner Member, Disc Brake, A-84S
097-022-00 1 Cap, Black Plastic
071-669-00 1 Consumer Lockout

K99-084-24: Actuator A-84S Disc

K99-084-24: Actuator A-84S Disc
Actuator Kit: Disc, Zinc, Bolt On, Top Mount, 14.5" Long, Single/Tandem

Dx Part No Quantity Description
099-084-24 1 Surge Actuator, Disc Brake, A-84S, Bolt-on
097-022-00 1 Cap, Black Plastic
071-669-00 1 Consumer Lockout
007-301-00 3 Bolt
005-181-00 6 Washer, Flat
006-219-00 3 Nut, Lock

K99-084-28: Actuator A-84A Disc

K99-084-28: Actuator A-84A Disc
Actuator Kit: Disc, Zinc, Bolt On, Top Mount, 14.5" Long, holes 1" down, Single/Tandem

Dx Part No Quantity Description
099-084-28 1 Surge Actuator, Disc Brake, A-84A, Bolt-on
097-022-00 1 Cap, Black Plastic
071-669-00 1 Consumer Lockout
007-301-00 3 Bolt
005-181-00 6 Washer, Flat
006-219-00 3 Nut, Lock